Temat: Heavy Metal - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Sewage sludge as barrier material for heavy metals in waste landfill
Autorzy:: Zhang, H.
Yang, B.
Zhang, G.
Zhang, X.
Powiązania:: https://bibliotekanauki.pl/articles/204656.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: sewage sludge
hydraulic conductivity
heavy metal pollution
heavy metal retardation
Opis:: Heavy metal pollutants in the leachate of waste landfill are a potential threat to the environment. In this study, the feasibility of using municipal sewage sludge as barrier material for the containment of heavy metal pollutants from solid waste landfills was evaluated by compaction test and hydraulic conductivity test concerning compaction property, impermeability and heavy metal retardation. Results of the compaction test showed that the maximum dry density of 0.79 g·cm⁻³ was achieved at the optimum water content of about 60%. The hydraulic conductivities of compacted sewage sludge permeated with synthetic heavy metal solutions were in the range of 1.3×10⁻⁸ – 6.2×10⁻⁹ cm·s⁻¹, less than 1.0 ×10−⁻⁷cm·s⁻¹ recommended by regulations for barrier materials. Chemical analyses on the effluent from the hydraulic conductivity tests indicated that the two target heavy metals, Zn and Cd in the permeants were all retarded by compacted sewage sludge, which might be attributed to the precipitation and adsorption of heavy metal ions. The results of this study suggest that specially prepared material from sewage sludge could be used as a barrier for waste landfills for its low permeability and strong retardation to heavy metal pollutants.
Źródło:: Archives of Environmental Protection; 2016, 42, 2; 52-58
2083-4772
2083-4810
Pojawia się w:: Archives of Environmental Protection
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Effect of bottom sediment on content, bioaccumulation and translocation on heavy metals in maize biomass
Wplyw osadu dennego na zawartosc, bioakumulacje i translokacje metali ciezkich w biomasie kukurydzy
Autorzy:: Jasiewicz, C
Baran, A.
Tarnawski, M.
Powiązania:: https://bibliotekanauki.pl/articles/16168.pdf
Data publikacji:: 2010
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:: bottom sediment
heavy metal content
bioaccumulation
translocation
heavy metal
maize
biomass
Opis:: The research aimed to assess the effect of bottom sediment on the content, bioaccumulation and translocation of heavy metals in maize biomass. The investigations were conducted in 2006-2007 as a pot experiment on light soil of the granulometric composition of weakly-loamy sand. The experimental design comprised 3 treatments: without sediment (I), a 5% sediment admixture (II) and a 10% sediment admixture to the soil (III). Bottom sediment was added to the soil in the first year of the investigations. The content of Zn, Cu, Ni. Pb, Cd and Cr was determined using the ICP-EAS method in the plant material after its dry mineralization and ash solution in HNO3. The uptake of the above-mentioned metals by maize was computed alongside their bioaccumulation and translocation coefficients. The effect of bottom sediment admixture on heavy metal concentrations in maize was determined to be varied, e.g. a 5% dose of sediment added to soil decreased the content of all the analyzed heavy metals in the biomass of maize aerial parts, whereas a 10% admixture increased the content of Cu, Ni, Pb and Cr. The values of bioaccumulation coefficients revealed that an admixture of both doses of bottom sediment led to a decreased accumulation of Zn, Cu, Cd, Cr and Ni (5% dose) in maize aerial biomass. Moreover, the plant more easily accumulated Zn, Cd and Cu than Cr, Ni or Pb. Permissible amounts of heavy metals in plants to be used as animal fodder were not exceeded in the maize biomass.
Celem badań była ocena wpływu osadu dennego na zawartość, bioakumulację i translokację metali ciężkich w biomasie kukurydzy. Badania prowadzono w latach 2006-2007, w warunkach doświadczenia wazonowego, na glebie lekkiej o składzie granulometrycznym piasku słabogliniastego. Schemat doświadczenia obejmował 3 obiekty: bez osadu (I), z dodatkiem 5% osadu (II) i dodatkiem 10% osadu do gleby (III). Osad denny dodano do gleby w pierwszym roku badań. Zawartość Zn, Cu, Ni, Pb, Cd, Cr w materiale roślinnym oznaczono po suchej mineralizacji i roztworzeniu popiołu w HNO3. Obliczono wynos ww. metali przez kukurydzę oraz ich współczynniki bioakumulacji i translokacji. Stwierdzono niejednoznaczny wpływ dodatku osadu dennego na zawartość metali ciężkich w kukurydzy. Osad dodany w ilości 5% do gleby wpłynął na zmniejszenie zawartości wszystkich analizowanych metali w nadziemnej biomasie kukurydzy, natomiast 10% dodatek osadu na zwiększenie ich zawartości (Cu, Ni, Pb, Cr). Wartości współczynników bioakumulacji świadczą, że dodatek osadu dennego w obu dawkach spowodował zmniejszenie akumulacji Zn, Cu, Cd, Cr oraz Ni (dawka 5%) w biomasie nadziemnej kukurydzy, ponadto rośliny łatwiej akumulowały Zn, Cd i Cu niż Cr, Ni i Pb. W biomasie kukurydzy nie stwierdzono przekroczenia dopuszczalnych zawartości metali ciężkich przyjętych do oceny roślin pod względem ich przydatności paszowej.
Źródło:: Journal of Elementology; 2010, 15, 2; 281-290
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Effect of overlying water pH, dissolved oxygen and temperature on heavy metal release from river sediments under laboratory conditions
Autorzy:: Huang, Y.
Zhang, D.
Xu, Z.
Yuan, S.
Li, Y.
Wang, L.
Powiązania:: https://bibliotekanauki.pl/articles/204852.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: heavy metal
release
river sediment
Opis:: The heavy metal release experiments were conducted in the laboratory to examine the effects of 3 factors - pH, dissolved oxygen (DO), and temperature on the metal release from sediments taken from the Huangpu River. The metal concentrations in the dry sediments ranged from 0.030 to 0.296 mg g^-1 for Cr, 0.021 to 0.097 mg g^-1 for Ni, 0.014 to 0.219 mg g^-1 for Cu, 0.035 mg to 0.521 mg g^-1 for Zn, 0.0002 to 0.001 mg g^-1 for Cd and 0.023 to 0.089 mg g^-1 for Pb. Most of the metals found in the sediments were in the form of residual fraction, the exchangeable fraction consisted of only a small portion of total metals. The average dissolved metal concentrations in the overlying water during the 13-day period under different conditions were ranging from 0.82 to 1.93 μg L^-1 for Cr, 1.08 to 4.19 μg L^-1 for Ni, 40.79 to 82.28 μg L^-1 for Cu, 20.30 to 29.96 μg L-1 for Zn, 1.57 to 4.07 μg L^-1 for Cd, and 22.26 to 75.50 μg L^-1 for Pb, respectively. Statistical interpretation of the data indicated that pH (7, 8, 9), dissolved oxygen DO (1.0 and 5.0 mg L^-1) and temperature (4, 16, 25°C) had no significant effects on the heavy metal release under the studied conditions. Cu and Pb had the highest release flux, while Cd, Pb and Cu had higher mobility. The main factors controlling the metals release might be the inherent characters of metals and sediments.
Źródło:: Archives of Environmental Protection; 2017, 43, 2; 28-36
2083-4772
2083-4810
Pojawia się w:: Archives of Environmental Protection
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Metal Detoxification in Nature and Its Translation into Functional Adsorbent Materials
Autorzy:: Permana, Rega
Ihsan, Yudi Nurul
Powiązania:: https://bibliotekanauki.pl/articles/1030803.pdf
Data publikacji:: 2020
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: adsorbent
bioinspired
heavy metal
polyphenol
Opis:: Nature has a remarkable strategies to overcome the unfavoring environmental condition by producing a unique chemical compounds, including polyphenol. Polyphenol residues in many living organism have been documented to express numerous biological function ranging from antioxidant, mechanical reinforcement as well as metal anchoring substances. This gave us insight of how nature converts toxic metal compound and deposits it into a harmless form. This review will discuss some natural strategies of living organism to metabolize metal in a safe manner so that the metal no longer harmful to them. Example taken from aluminum accumulating plants, vanadium accumulating marine tunicate and iron-reinforced mussel byssus, which all three utilized phenol derivative compound to chelate the metal. Advances made by incorporating cutting edge characterization tools allowed us to understand the exact mechanism of metal chelation at the atomic level. A comprehensive discussion of molecular mechanism governing the complexion between the phenolic compound and metal will be beneficial for further study to fabricate functional materials, for example adsorbent, to remediate contaminated water. Translating these natural strategies into an engineered polyphenol based adsorbent materials will be prospective to be further applied as a remediation agent as it is easily found in nature, cost effective and highly efficient.
Źródło:: World Scientific News; 2020, 145; 144-155
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: The effect of soil acidification on Cd and Pb precipitation
Autorzy:: Sari, D.
Morvai, B.
Powiązania:: https://bibliotekanauki.pl/articles/802266.pdf
Data publikacji:: 1998
Wydawca:: Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:: soil acidification
cadmium
lead
precipitation
heavy metal
sustainable environment
environment pollution
heavy metal accumulation
Opis:: A model for estimating the precipitation of Cd-, Pb- and As-sulphide in soils at various pH is presented. pH influences not only the solubility of heavy metal-sulphides but also on the distribution of the S atom among sulphide (S²⁻, SH⁻, H₂S) and sulphate (SO₄²⁻) species by the redox potential of the soil solution. The model, based on the Nerst-equation. considers the equilibrium of protolitic processes and complex ion formation. In order to test the model, a long term field experiment polluted with different levels of toxic heavy metals on Hungarian typical soils was performed. Coarse textured soils were treated with Cd. Pb and As salts at pH = 6.8 and 8 and after 6 months and 2 years the heavy metal precipitation was investigated. The Pb ion precipitated at pH = 8.0 and pH = 6.2 while Cd ion at pH = 8. The As ion did not show precipitation effect in any soil according to the majority of arsenate ions at the actual redox potential. Although the solubility of CdS (pK = 26.1) and PbS (pk = 26.6) is similar, the Cd concentration in the solution was higher than that of Pb. The difference between the two ion concentrations is interpreted by the stronger Pb ion adsorption to organic and inorganic soil constituents. It indicated that the adsorbed and complex ion should be considered for the prediction of precipitation.
Źródło:: Zeszyty Problemowe Postępów Nauk Rolniczych; 1998, 456
0084-5477
Pojawia się w:: Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Distribution of Heavy Metal Fractions in Sewage Sludge from a Selected Municipal Sewage Treatment Plant
Autorzy:: Wojciula, Ada
Boruszko, Dariusz
Kacprzak, Amadeusz
Powiązania:: https://bibliotekanauki.pl/articles/2069929.pdf
Data publikacji:: 2021
Wydawca:: Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:: sewage sludge
heavy metals
heavy metal fraction
Opis:: Sewage sludge used for reclamation of egraded areas or in agriculture must have a certain total heavy metal content, as required by law. In practice, however, it is important to carry out a fractional analysis of the elements contained in the sludge. This activity allows to determine the chemical form of a given metal, thanks to which it is possible to assess the assimilability of elements by plants. The study proved that the fraction of certain metals in sewage sludge can vary depending on the period studied. The combination of elements with other compounds in sludge from one treatment plant can vary from month to month. Once analysis has been carried out, it should not be the basis for assessing the bioavailability of metals if sludge from a given treatment plant were to be sampled several times a year.
Źródło:: Rocznik Ochrona Środowiska; 2021, 23; 369--383
1506-218X
Pojawia się w:: Rocznik Ochrona Środowiska
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Analysis of Heavy Metal Fraction Content in Sewage Sludge from Selected Wastewater Treatment Plants
Autorzy:: Wojciula, Ada
Boruszko, Dariusz
Pajewska, Gabriela
Powiązania:: https://bibliotekanauki.pl/articles/1839655.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: sewage sludge
heavy metals
heavy metal fraction
Opis:: Assessment of the assimilability of elements contained in sewage sludge can only be carried out if their fractions, by means of which the chemical form of the element can be identified, are determined. The total content of heavy metals only makes it possible to determine whether the sludge meets the legal requirements and can be used, inter alia, for reclamation, in agriculture or for the adaptation of land to specific needs that result from waste management plans. Therefore, when planning the agricultural use of sewage sludge, attention should be paid above all to the heavy metal fractions contained in it. This is due to the fact that plants do not assimilate every form of element to the same extent. The research and analysis carried out indicate that the metals were most closely related to fractions IV and III, for example they formed connections with silicates, as well as sulphides and organic matter. The metal forms available to plants occupied a small percentage of the total heavy metal content. It was noted that with the metastable fraction of lead increased along with population equivalent. Furthermore, the population equivalent value did not affect the distribution of individual heavy metal fractions in the sludge.
Źródło:: Journal of Ecological Engineering; 2021, 22, 4; 98-105
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Cyclical metal adsorption and desorption through sludge immobilized in chitosan media
Autorzy:: Kuczajowska-Zadrożna, Małgorzata
Filipkowska, Urszula
Jóźwiak, Tomasz
Szymczyk, Paula
Powiązania:: https://bibliotekanauki.pl/articles/1034744.pdf
Data publikacji:: 2016
Wydawca:: Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
Tematy:: adsorption
chitosan
desorption
heavy metal
immobilization
Opis:: In this research, a cyclical adsorption/desorption of cadmium and zinc from solutions containing a single metal or its mixture in ratio of 1:1 and 1:2 using immobilized activated sludge in the chitosan (ASC) was examined. In the adsorption studies, the optimal dose of ASC was 4 g/L. The highest desorption efficiency was achieved for 1M HNO3. Both adsorption and desorption occurred in accordance with a pseudo-second order reactions which is confirmed by R2 values. Mass of zinc adsorbed and desorbed in one cycle from a solution containing a single metal was 0.78 and 0.40 mmol/g d.w. when cadmium was lower (respectively 0.41 and 0.21 mmol/g d.w.). In subsequent cycles, both metals were adsorbed and desorbed at a lower efficiency. The highest efficiency of desorption was observed for a mixture of Cd:Zn in the ratio of 1:1 and 1:2, respectively 86% and 89% of cycle1, whereas for the zinc it was 70% and 53%. Desorption efficiency of both metals and its mixtures, in subsequent cycles gradually decreased.
Źródło:: Progress on Chemistry and Application of Chitin and its Derivatives; 2016, 21; 135-146
1896-5644
Pojawia się w:: Progress on Chemistry and Application of Chitin and its Derivatives
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Biosorption/desorption of cadmium(ii) and zinc (ii) from aqueous solutions by activated sludge immobilized onto chitosan beads
Autorzy:: Kuczajowska-Zadrożna, Małgorzata
Filipkowska, Urszula
Jóźwiak, Tomasz
Szymczyk, Paula
Powiązania:: https://bibliotekanauki.pl/articles/1035015.pdf
Data publikacji:: 2015
Wydawca:: Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
Tematy:: adsorption
chitosan beads
desorption
heavy metal
Opis:: In this study, we evaluated the effectiveness of cadmium and zinc adsorption and desorption from solutions containing single metals and a mixture of metals in the ratio of 1:2 by activated sludge immobilized onto chitosan (ASC). The optimal pH value determined for metals adsorption ranged from pH 5 to pH 6, whereas that established for desorption reached pH 2. In the case of individual metals, the state of adsorption equilibrium in the solution was achieved after 180 min, whereas in the case of a metal mixture – after 270 min. In the case of desorption, the state of equilibrium was achieved after 45 min. It was stated that both adsorption and desorption proceeded according to the pseudo-second order reaction. The study enabled determining the maximum adsorption capacity based on Langmuir, Freundlich and Sips models. The Sips model was found suitable for the description of adsorption of single metals onto ASC, whereas both Sips and Freundlich models – for description of the adsorption of a metal mixture, which was indicated by the determined values of R2 coefficient. The adsorption capacity of ASC determined from Sips model for individual solutions of cadmium and zinc reached 216 and 188.3 mg/g d.m., respectively, whereas that determined for their mixture reached 106 mg/g d.m. for both metals.
Źródło:: Progress on Chemistry and Application of Chitin and its Derivatives; 2015, 20; 142-155
1896-5644
Pojawia się w:: Progress on Chemistry and Application of Chitin and its Derivatives
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Seasonal variation in heavy metal distribution in the sediments of selected dams in Nasarawa State, Nigeria
Autorzy:: Gav, B. L.
Aremu, M. O.
Etonihu, A. C.
Powiązania:: https://bibliotekanauki.pl/articles/1109614.pdf
Data publikacji:: 2018
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Dams
Heavy metal
Seasonal variations
sediments
Opis:: The study was carried out to ascertain seasonal variation in heavy metal distribution in sediments from Dams located in Nasarawa State, Nigeria. Sediment samples were collected twice each at two different seasons for two years from May to September, 2014 and November-December, 2014 to March, 2015 for wet and dry seasons, respectively. Similarly, sediment samples were collected from May to September, 2015 and November-December, 2015 to March, 2016 for wet and dry seasons, respectively. The samples were then assessed for heavy metal properties, using atomic absorption spectrophotography (AAS). Analysis of variance (ANOVA) was then applied. The mean results of the heavy metal levels showed high values in dry seasons and low values in wet seasons in the two years of the study. Herein, the results of ANOVA revealed significant difference in the heavy metal concentrations between the seasons, dams and years. Our study also indicated that for heavy metals, the levels determined in sediments were within the WHO acceptable standards, except for Pb and Mn. These exceeded the WHO acceptable standards for drinking water. Based on these results, the dam waters are, therefore, polluted and unsuitable for human consumption, except after treatment.
Źródło:: World News of Natural Sciences; 2018, 20; 148-159
2543-5426
Pojawia się w:: World News of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Assessment of Heavy Metal Concentration of Groundwater in Veppanthattai Block, Perambalur District, Tamil Nadu
Autorzy:: Ibraheem, A. Mohamed
Mazhar Nazeeb Khan, S. M.
Powiązania:: https://bibliotekanauki.pl/articles/1113912.pdf
Data publikacji:: 2017
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: AAS
Groundwater
Heavy metal
Veppanthattai
WHO
Opis:: The current study was aimed to find out the heavy metal concentration of groundwater in the Veppanthattai block. Here, 45 water samples from different sites were collected during the year 2015 at post monsoon, and Cd, Cr, Cu, Fe, Ni, Pb and Zn heavy metal content was analyzed using an atomic absorption spectrophotometer (AAS), The obtained results were then compared with the WHO standard for the specific highest pollution level. Accordingly, some or all water samples are above the permissible limit, particularly for Cd metal (all samples). The elevated concentration of cadmium in water samples of the study area may be due to agricultural runoff, as pesticides and cadmium-containing fertilizer have been used. The study showed that without proper treatment, the groundwater of the study area is not suitable for domestic applications.
Źródło:: World News of Natural Sciences; 2017, 12; 21-26
2543-5426
Pojawia się w:: World News of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Evaluating the Behavior of Metals in soil environment
Autorzy:: Draszawka-Bołzan, Beata
Cyraniak, Emil
Powiązania:: https://bibliotekanauki.pl/articles/1118209.pdf
Data publikacji:: 2017
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Heavy metal
Soil sorption
sorption study
Opis:: Metals added to soil will normally be retained at the soil surface. Movement of metals into other environmental compartments, i.e., ground water, surface water, or the atmosphere, should be minimal as long as the retention capacity of the soil is not exceeded. The extent of movement of a metal in the soil system is intimately related to the solution and surface chemistry of the soil and to the specific properties of the metal and associated waste matrix. The retention mechanisms for metals added to soil include adsorption of the metal by the soil solid surfaces and precipitation. The retention of cationic metals by soil has been correlated with such soil properties as pH, redox potential, surface area, cation exchange capacity, organic mater content, clay content, iron and manganese oxide content and carbonate content. Anion retention has been correlated with pH, iron and manganese oxide content and redox potential. In addition to soil properties, consideration must be given to the type of metal and its concentration and to the presence of competing ions, complexing ligands, and the pH and redox potential of the soil-waste matrix.
Źródło:: World News of Natural Sciences; 2017, 9; 19-34
2543-5426
Pojawia się w:: World News of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Synthesis of hydroxyapatite derived from agricultural waste and its applications as an adsorbent for heavy metal removal from wastewater
Autorzy:: Kalbarczyk, Marta
Szcześ, Aleksandra
Powiązania:: https://bibliotekanauki.pl/articles/2079904.pdf
Data publikacji:: 2019
Wydawca:: Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:: hydroxyapatite, eggshell, adsorption, heavy metal, wastewater
Opis:: The presence of heavy metals in aquatic systems can be harmful to living species. Heavy metals are not biodegradable, and their tendency to accumulate in living organisms often causes different, undesirable consequences. Therefore, removing these impurities from wastewater has become one of the key issue related to environmental protection [Babel and Kurniawan 2004].There are many methods developed to remove heavy metals from wastewater and adsorption is one of the most popular one. Despite of the diversity of these technologies there is still a need to develop methods that do not require a large financial input [Hegazi 2013, Renu et al. 2017].The most important features that determine materials used as adsorbent is their low cost, biocompatibility and environmental friendly nature and hydroxyapatite presents all of them. Moreover, hydroxyapatite particles are characterized by high specific surface area and simple method of synthesis. It is also reported that it can be obtained from agricultural waste based on calcium like eggshells [Akram et al. 2014].The aim of this paper is to show and compare different methods of hydroxyapatite synthesis using eggshells as a source of calcium and it sorption capacity due to different metal cations from aqueous solution.
Źródło:: Annales Universitatis Mariae Curie-Skłodowska, sectio AA – Chemia; 2019, 74, 2; 53-68
2083-358X
Pojawia się w:: Annales Universitatis Mariae Curie-Skłodowska, sectio AA – Chemia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Nickel in the environment
Autorzy:: Harasim, P.
Filipek, T.
Powiązania:: https://bibliotekanauki.pl/articles/14480.pdf
Data publikacji:: 2015
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:: environment
nickel
micronutrient
heavy metal
allergen
Opis:: The importance of nickel (Ni) in the environment is an issue that is gaining broader recognition. While nickel is an element essential for plants, it is also a heavy metal. Nickel is a component of nine metalloenzymes, including urease, which participates in urea hydrolysis. It also helps some plants to protect themselves against pathogens and herbivorous insects. There are many sources of Ni in the environment, which can be a problem because at higher concentrations this element is toxic to plants and other living organisms. Therefore, standards have been defined for the Ni content in air, water, soil and plants. Its content is monitored in the air. More and more frequently, attention is paid to this element as an allergen in humans. In the world, attempts have been made to phytoextract nickel from contaminated soils using nickelphilous plants, the so-called hyperaccumulators, and even to recover the metal from these plants by so-called phytomining. On the other hand, nickel-containing fertilizers are marketed and used in cases of nickel deficiency in plants. In industry, this element is primarily used for the production of steel and alloys. The most recent application of nickel is related to graphene, which was invented 10 years ago. Although nickel contamination does not occur in Poland, we cannot rule out this risk in the future. Thus, it is important to monitor the fate of nickel in the environment.
Źródło:: Journal of Elementology; 2015, 20, 2
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Application of Assessment Models for Health Risk and Pollution from Surface Water from Okumpi River in Nwangele, Imo State, Nigeria
Autorzy:: Chukwuemeka, Ihenetu Stanley
Obinna, Njoku Victor
Chizoruo, Ibe Francis
Powiązania:: https://bibliotekanauki.pl/articles/1840785.pdf
Data publikacji:: 2021
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Environment
Health
Heavy-metal
Metals
Water
Opis:: The mean and standard deviation of pH value in the present study during the wet and dry seasons varied from 6.21±0.22 - 5.75±0.41. The mean and standard deviation of EC in the current study ranges between 219.15±12.20 - 193.30±14.81 μS/cm for wet and dry seasons which are found to be in line with the WHO standard used. The mean and standard deviation of DO for this study during the wet and dry seasons were found to be 10.03±0.58 - 6.47±0.41 (mg/L). TDS for wet and dry seasons ranges from 374.79 ±5.33 - 121.65 ±6.33 mg/L. The nitrate [9.05 ±1.08 - 8.09 ±1.57], sulphate [3.91 ±0.51 – 3.73 ±0.46] and phosphate [82.78 ±3.86 - 81.76±3.32] in this present study for wet and dry season were all found to be below the standard. The Hazard quotient via ingestion and Hazard quotient via dermal has a reduction in the order of lead > nickel > iron > manganese > copper > zinc and lead > zinc > nickel > copper > iron > manganese > cadmium, in cooperation in children and adults in wet season, correspondingly. The Hazard quotient via ingestion and Hazard quotient via dermal has a decrease in the following order of nickel > lead > manganese > copper > iron > zinc and lead >zinc > nickel > copper > manganese > iron > for both children and adults in dry season, respectively. Lead possess carcinogenic risk for the inhabitants of this area due to the value of the carcinogenic risk n wet season of 4.05E-4 in adult and 1.55E-3 in children, in dry season of 2.57E-4 in adult and 9.88E-4 in children, against the standard set by the USEPA of 10-6 – 10-4. The surface water is not suitable for drinking as seen by the high water quality index of > 300. Lead possess carcinogenic risk for the inhabitants.
Źródło:: World News of Natural Sciences; 2021, 38; 20-36
2543-5426
Pojawia się w:: World News of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 16.

Tytuł:: Content of Heavy Metals and Their Fractions in Organic Soils of Podlasie
Autorzy:: Wiater, Józefa
Powiązania:: https://bibliotekanauki.pl/articles/124491.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: heavy metal
organic soils
speciation of heavy metals
Opis:: The purpose of this study was to determine the total content of cadmium, lead, nickel, copper, zinc and their fractions in organic soils of Podlasie used as permanent grassland. The research material were samples taken from 30 soils of the Podlasie province in 2011-2013. The samples were taken from the determined layer to depth of 0-30 cm. Basic physicochemical properties were determined in the taken soil samples: organic carbon content, pH in 1 M KCl potentiometrically. The total content of metals after mineralization in aqua regia was determined, and cadmium fractions were determined with a modified BCR method. The measurements were conducted by means of atomic absorption spectroscopy with electrothermal atomization using Varian AA-100 spectrometer. It was found that only 2 soils can be included in the soils with first pollution degree due to the cadmium content. The content of other metals was at geochemical background level. The distribution of investigated metals in the fractions in studied organic soils was different comparing to mineral soils. Most of the analyzed elements were present in the fraction associated with organic substance, which limited their mobility, as evidenced by their low share in the available and potentially available fraction. The proportion of metals in the residual fraction was low, which is typical for organic soils. The share of studied metals in particular fractions varied depending on the sampling date, which may be related to the climatic conditions course in the study period and the treatments performed on these soils.
Źródło:: Journal of Ecological Engineering; 2019, 20, 3; 179-184
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 17.

Tytuł:: Black metal okiem filologa – próba językoznawczego zdefiniowania pojęcia
Black Metal Through the Eyes of the Philologist: An Attempt to Define the Term Linguistically
Autorzy:: Barski, Kamil
Powiązania:: https://bibliotekanauki.pl/articles/514160.pdf
Data publikacji:: 2019
Wydawca:: Uniwersytet Jagielloński. Koło Naukowe Studentów Muzykologii UJ
Tematy:: black metal
heavy metal
linguistics
theory of prototypes
Opis:: The main purpose of the article is to present a new definition of an extreme music genre, namely black metal, based on the linguistic theory of prototypes. This necessity eventuates from its expansion, as a result of which the genre (specifically: its forms) is blowing up from within. In the face of diversity of black metal songs and the fact that all of traditional black metal’s main features could be invalidated by the opposing work of one of contemporary bands, a new, more capacious model of a definition is needed. The presented model is a prototypical categorisation derived from a postmodern linguistic paradigm.
Źródło:: Kwartalnik Młodych Muzykologów UJ; 2019, 4(43); 131-150
2956-4107
2353-7094
Pojawia się w:: Kwartalnik Młodych Muzykologów UJ
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 18.

Tytuł:: „Tam, gdzie nas nie spotkamy, melancholia się nami nie nażre”. Romantyczna antropologia melancholiczna w polskim black metalu
„Where We Don’t Meet Each Other, the Melancholy Won’t Stuff Itself With Us”. Romantic Melancholic Anthropology in Polish Black Metal
Autorzy:: Barski, Kamil
Powiązania:: https://bibliotekanauki.pl/articles/27307330.pdf
Data publikacji:: 2023-12-15
Wydawca:: Komisja Nauk Filologicznych Oddziału Polskiej Akademii Nauk we Wrocławiu
Tematy:: melancholy
black metal
Romanticism
heavy metal
melancholia
romantyzm
Opis:: Among the many research fields, in terms of which heavy metal (counter)culture (more precisely, in this case, black metal) can be studied, the history of literature has a prominent place. The separation of the lyrics of the song from its musical layer makes it a poem which can be interpreted in various keys. As a result, it can also be established in various literary traditions. In opinion of the author – expressed also in other publications – black metal poetry has a romantic character for many reasons. In this article, literary studies combine with anthropological considerations. There is a specific concept of man that emerges from the interpretation of the lyrics, which makes us consider black metal musicians as “late grandchildren” of Romanticism, and black metal itself – as another incarnation of this movement in the history of culture. It turns out, that the most represented anthropological attitude which occurs in contemporary works of this genre is Romantic melancholy, the various manifestations of which are traced in each lyric.
Źródło:: Academic Journal of Modern Philology; 2023, 19; 9-23
2299-7164
2353-3218
Pojawia się w:: Academic Journal of Modern Philology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 19.

Tytuł:: Heavy metals in shells of freshwater molluscs from the Odra estuary
Autorzy:: Piotrowski, S.
Wiertlewska, A.
Powiązania:: https://bibliotekanauki.pl/articles/84300.pdf
Data publikacji:: 1999
Wydawca:: Uniwersytet Mikołaja Kopernika. Wydział Biologii i Ochrony Środowiska. Stowarzyszenie Malakologów Polskich
Tematy:: heavy metal
shell
freshwater mollusc
mollusc
heavy metal concentration
habitat
Dreissena polymorpha
Viviparus viviparus
Odra estuary
Źródło:: Folia Malacologica; 1999, 07, 4
1506-7629
Pojawia się w:: Folia Malacologica
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Heavy metals migration in the system: near-bottom water - interstitial water - bottom sediment in Gardno Lake
Migracja metali cięśkich w układzie: woda przydenna - woda iłowa-– osad denny jeziora Gardno
Autorzy:: Trojanowski, J.
Trojanowska, C.
Janczak, C.
Powiązania:: https://bibliotekanauki.pl/articles/84847.pdf
Data publikacji:: 2007
Wydawca:: Akademia Pomorska w Słupsku
Tematy:: heavy metal
metal migration
bottom water
interstitial water
bottom sediment
Lake Gardno
lake
heavy metal concentration
accumulation property
Opis:: The study of heavy metals concentration in the estuarine lake Gardno water and bottom sediments showed that the river Łupawa and periodic inputs of sea water exert decisive influence on forming of the water stores and bottom sediments quality in this lake. The largest concentrations of Cd, Cu, Mn, Pb and Zn were observed at river mouth into the lake region (Cd – 0.26, Cu – 3.71, Mn – 94.3, Pb – 10.01, Zn – 16.26 μg dm-3) and the lowest at water outflow from the lake region (Cd – 0.13, Cu – 1.81, Mn – 53.8, Pb – 8.86, Zn – 8.05 μg dm-3). Average concentrations of those metals in the lake water, suspension and bottom sediment form the following row: Mn>Zn>Pb>Cu>Cd. The contents of analysed metals were the highest in interstitial water, smaller in near-bottom water and the smallest in surface water. Average content of metals in near-bottom suspension was about 30% higher than that in surface suspension, but enrichment factors of those metals in suspensions do not show essential statistic differences. This probably results from continual mixing of water masses by wind. The migration coefficients indicated that bottom sediments of lake Gardno have large accumulation properties of heavy metals.
W latach 2002-2003 przeprowadzono badania nad koncentracją metali ciężkich w wodzie i osadach dennych estuariowego jeziora Gardno. Wykazano, że przepływająca przez to jezioro rzeka Łupawa i okresowe wlewy wody morskiej mają istotny wpływ na zawartość Mn, Zn, Cu, Pb i Cd w wodzie i osadach dennych tego jeziora. Największą koncentrację tych metali obserwowano w rejonie ujścia Łupawy do jeziora (Cd – 0,26, Cu – 3,71, Mn – 94,3, Pb – 10,01 Zn – 16,26 μg dm-3), a najmniejszą w rejonie wypływu tej rzeki z jeziora (Cd – 0,13, Cu – 1,81, Mn – 53,8, Pb – 8,86, Zn – 8,05 μg dm-3). Przeciętna zawartość tych metali w wodzie, zawiesinach i osadzie dennym układała się w następującej kolejności Mn>Zn> Pb>Cu>Cd. Ich stężenia były najwyższe w wodzie iłowej, mniejsze w wodzie przydennej, a najmniejsze w wodzie powierzchniowej. Przeciętna zawartość analizowanych metali w zawiesinie przydennej była o około 30% większa niż w zawiesinie powierzchniowej. Wyznaczone współczynniki wzbogacenia wskazują, że Pb, Zn i Mn w osadach dennych badanego jeziora są głównie pochodzenia antropogenicznego, natomiast Cd pochodzenia naturalnego. Pochodzenie Cu zależne jest od rejonu jeziora. Osady denne jeziora Gardno charakteryzują się dużymi zdolnościami kumulacji metali ciężkich. Dlatego też w tym jeziorze obserwuje się głównie migrację badanych metali z toni wodnej do wody iłowej i osadów dennych. Udział we wzbogacaniu wody przydennej w Pb, Zn i Cu mają zarówno osady denne, jak i opady atmosferyczne. Wiosną i jesienią decydujący wpływ mają opady atmosferyczne, a latem osady denne.
Źródło:: Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline; 2007, 11
1643-0115
Pojawia się w:: Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 21.

Tytuł:: Heavy metals and phosphorus in snails of the River Liwiec and its tributaries
Autorzy:: Krolak, E.
Powiązania:: https://bibliotekanauki.pl/articles/83429.pdf
Data publikacji:: 1999
Wydawca:: Uniwersytet Mikołaja Kopernika. Wydział Biologii i Ochrony Środowiska. Stowarzyszenie Malakologów Polskich
Tematy:: heavy metal
phosphorus
snail
Liwiec River
tributary
shell
Lymnaea stagnalis
Planorbarius corneus
phosphorus concentration
heavy metal concentration
Źródło:: Folia Malacologica; 1999, 07, 4
1506-7629
Pojawia się w:: Folia Malacologica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 22.

Tytuł:: Effects of cadmium and lead concentrations and arbuscular mycorrhiza on growth, flowering and heavy metal accumulation in scarlet sage [Salvia splendens Sello 'Torreador']
Wplyw stezen kadmu i olowiu oraz mikoryzacji na wzrost, kwitnienie i akumulacje metali ciezkich w szalwii lsniacej [Salvia splendens Sello 'Torreador']
Autorzy:: Nowak, J
Powiązania:: https://bibliotekanauki.pl/articles/28604.pdf
Data publikacji:: 2007
Wydawca:: Polskie Towarzystwo Botaniczne
Tematy:: mycorrhization
heavy metal accumulation
plant growth
cadmium
heavy metal pollution
growth
Salvia splendens
scarlet sage
lead
flowering
Opis:: The objective of this research was to examine the influence of Cd (0, 10, 20, 40 mg Cd·dm⁻³) and Pb (0, 10, 100, 200 mg Pb·dm⁻³) in growing substrate and mycorrhizal colonization of root system on growth, flowering, Cd and Pb accumulation in scarlet sage shoots. Both Cd and Pb had a negative effect on mycorrhizal colonization of scarlet sage roots. The effect of Cd and Pb on the growth of scarlet sage was negligible. Cd at 40 mg·dm⁻³ lowered the number of inflorescences and caused slight chlorosis of the lowermost leaves. Pb at 200 mg·dm⁻³ caused drying of the lowermost leaves. Both heavy metals accelerated flowering of non-mycorrhizal plants, independently of the concentration in growing media. Cd and Pb contents in scarlet sage shoots increased with the increasing content of these heavy metals in growing substrate in both non-mycorrhizal and mycorrhizal plants. Mycorrhization decreased the growth of scarlet sage and increased the accumulation of Cd and Pb in shoots of plants grown in media strongly polluted with heavy metals.
Badania miały na celu określenie wpływu zawartości kadmu (0, 10, 20, 40 mg Cd·dm⁻³) i ołowiu (0, 10, 100, 200 mg Pb·dm⁻³) w podłożu oraz mikoryzy arbuskulamej na wzrost, kwitnienie i akumulację Cd i Pb w pędach szałwii lśniącej. Zarówno Cd jak i Pb wpływały ujemnie na kolonizację korzeni przez grzyby tworzące mikoryzę arbuskularną. Wpływ obu metali ciężkich na wzrost szałwii był niewielki. Cd w stężeniu 40 mg·dm⁻³ obniżał liczbę kwiatostanów i powodował lekką chlorozę liści dolnych, a Pb w stężeniu 200 mg·dm⁻³ zasychanie liści dolnych. Oba metale ciężkie przyspieszały kwitnienie roślin nie poddanych mikoryzacji, niezależnie od stężenia w podłożu. Zawartości Cd i Pb w pędach szałwii lśniącej wzrastały wraz ze wzrostem zawartości tych pierwiastków w podłożu, zarówno u roślin nie zmikoryzowanych jak i zmikoryzowanych. Mikoryzacja wpływała ujemnie na wzrost szałwii oraz zwiększała akumulację Cd i Pb w pędach roślin rosnących w podłożach silnie zanieczyszczonych tymi pierwiastkami.
Źródło:: Acta Agrobotanica; 2007, 60, 1
0065-0951
2300-357X
Pojawia się w:: Acta Agrobotanica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 23.

Tytuł:: XRF analysis of heavy metals contents in oak wood (Quercur robur L.)
Autorzy:: Balicka, Adrianna
Szadkowska, Dominika
Powiązania:: https://bibliotekanauki.pl/articles/2200223.pdf
Data publikacji:: 2020
Wydawca:: Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:: heavy metal content
XRF spectrometer
wood shavings
Opis:: XRF analysis of heavy metals contents in oak wood (Quercur robur L.). The aim of this study was to determine an amount of adsorbed metals ions from water solutions by oak ( Quercus robur L.) shavings. This paper focuses on XRF analysis of metal contents in examined samples. Necessary material was obtained from damaged flooring strips. Samples were soaked with standard water solutions of lead (II) nitrate, cadmium nitrate and mercury (II) chloride. After 7 days wood shavings were dried and reduced to ashes in muffle furnace. Content of adsorbed metal was marked (XRF) and classified depending on percentage concentration of metal ions in solutions.
Analiza zawartości metali ciężkich w dębinie (Quercus robul L.) metodą fluorescencji rentgenowskiej XRF. Celem niniejszych badań było sprawdzenie adsorpcji wybranych metali ciężkich tj. kadm, rtęć i ołów z modelowych roztworów, za pomocą drewna dębu (Quercus robul L.). Materiał do badań został pozyskany z recyklingu tj. z uprzednio oczyszczonych desek parkietowych. Aby zwiększyć powierzchnię adsorpcji próbek, drewno zostało rozdrobnione na wióry. Przygotowano po 4 stężenia roztworów dla każdego związku metalu. Wykorzystane zostały: azotan kadmu (II), azotan ołowiu oraz chlorek rtęci (II). Każda z próbek wiórów (ok.1 gram) nasiąkała przez ok. 168 godzin w danym roztworze. Następnie materiał został wysuszony, spopielony i finalnie przebadany za pomocą metody spektrometrii XRF (korzystającej z metody fluorescencji rentgenowskiej). Wykorzystano dwa sposoby kalibracji urządzenia oraz trzy różne czasy naświetlania punktu pomiarowego. Otrzymane wyniki zostały przeanalizowane pod kątem osiągniętej ilości zliczeń.
Źródło:: Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology; 2020, 109; 76--80
1898-5912
Pojawia się w:: Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 24.

Tytuł:: Phytoremediation as a Barrier to Heavy Metal Distribution in Open Dumping Landfill in Peatlands
Autorzy:: Marsum
Anwar, Taufik
Slamet
Khayan
Wardoyo, Slamet
Powiązania:: https://bibliotekanauki.pl/articles/2105277.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: phytoremediation
barrier
heavy metal
open dumping landfill
Opis:: Landfills with the open dumping method cause many environmental pollution problems, such as pollution, soil, surface water, and groundwater. Pollution cleaning technology (remediation) to reduce the harmful effects in the locations contaminated with heavy metals can be implemented by means of several methods, including using phytoremediation as a barrier to heavy metal contamination in order to preventing contamination distribution to the environment. Ferns (phytoremediation) on the side of the open dumping landfill were investigated as phytoremediation, inhibiting the distribution of heavy metals into the environment. The descriptive-analytic research method was used to analyze the ability of ferns in an open dumping landfill in peatland areas as a barrier to metal contamination distributed to the environment. The results show that ferns can bind heavy metals, such as Hg and Pb, produced from open dumping landfill activities to prevent the distribution of heavy metals to the environment around the landfill. Ferns are able to block the distribution of heavy metals into the environment, especially Pb and Hg. The ability of ferns to become potential plants in peatland areas requires further testing of other heavy metals.
Źródło:: Journal of Ecological Engineering; 2022, 23, 6; 112--117
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 25.

Tytuł:: Heavy metals in the cell nucleus - role in pathogenesis
Autorzy:: Sas-Nowosielska, Hanna
Pawlas, Natalia
Powiązania:: https://bibliotekanauki.pl/articles/1039119.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Biochemiczne
Tematy:: heavy metal
nucleus
chromatin
DNA
RNA
telomere
Opis:: People are exposed to heavy metals both in an occupational and natural environment. The most pronounced effects of heavy metals result from their interaction with cellular genetic material packed in form of chromatin. Heavy metals influence chromatin, mimicking and substituting natural microelements in various processes taking place in the cell, or interacting chemically with nuclear components: nucleic acids, proteins and lipids. This paper is a review of current knowledge on the effects of heavy metals on chromatin, exerted at the level of various nuclear components.
Źródło:: Acta Biochimica Polonica; 2015, 62, 1; 7-13
0001-527X
Pojawia się w:: Acta Biochimica Polonica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 26.

Tytuł:: Effect of arbuscular mycorrhizal fungi on the content of zinc in lettuce grown at two phosphorus levels and an elevated zinc level in a nutrient solution
Autorzy:: Konieczny, A.
Kowalska, I.
Powiązania:: https://bibliotekanauki.pl/articles/1190203.pdf
Data publikacji:: 2017
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:: arbuscular mycorrhiza
heavy metal
plant nutrition
yield
Opis:: Zinc (Zn) is an important element for the proper plant growth and development. However, Zn is also a metal commonly used in the industry, which may cause its excessive accumulation in soil. High soil Zn content leads to its increased uptake by plants growing near industrialized areas. Arbuscular mycorrhizal fungi (AMF) live in symbiosis with the majority of plant species. These fungi have the ability to reduce Zn uptake by plants, when this element is present in an increased concentration in the plant root zone. An experiment was carried out to determine the effect of AMF on Zn uptake by lettuce plants grown in rockwool at increasing levels of Zn in the nutrient solution. This effect was investigated at two P levels in the nutrient solution, i.e. 40 mg P (optimal for lettuce) and 10 mg P dm-3. Mycorrhizal parameters, yield, content of dry matter, ascorbic acid, glucose, fructose and sucrose as well as the plant’s nutritional status in P, Cu, Mn, Mo, Fe and Zn were determined in the study. The effectiveness of mycorrhization of lettuce grown in rockwool was proven in the study. AMF reduced the Zn content in lettuce grown under excessive Zn concentrations in the root zone. Moreover, this decrease was greater in plants receiving the nutrient solution with a lower concentration of P. Additionally, mycorrhiza decreased the content of Cu, Fe, Mn and Mo in lettuce, despite an optimal (not increased) concentration of these micronutrients in the nutrient solution supplied to plants. Arbuscular mycorrhiza did not affect the plant yield, content of ascorbic acid, glucose, fructose, sucrose or the content of P in lettuce leaves.
Źródło:: Journal of Elementology; 2017, 22, 2; 761-772
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Poly(2-acrylamido-2-methyl-1-propane sulfonic acid-co-1-vinyl-2-pyrrolidone) Hydrogel and its use in the Removal of Cd(II), Pb(II) and Cu(II)
Autorzy:: Çavuş, S.
Çakal, E.
Powiązania:: https://bibliotekanauki.pl/articles/1031592.pdf
Data publikacji:: 2017-09
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: sorption
heavy metal ions
hydrogels
sulfonic acid
Opis:: Poly(2-acrylamido-2-methyl-1-propanesulfonic acid-co-1-vinyl-2-pyrrolidone), P(AMPS-co-VP), hydrogel was prepared by free radical cross-linking polymerization method. Prepared hydrogel was used in the competitive removal of Cd(II), Pb(II) and Cu(II) ions from aqueous solution. The characterization of P(AMPS-co-VP) before and after sorption was carried out by the Fourier transform infrared spectroscopy, thermogravimetric analysis and scanning electron microscopy. Atomic absorption spectrometer was used to found the concentration of metal ions in the aqueous solution. The selectivity of P(AMPS-co-VP) was as follows: Cd(II)>Pb(II)>Cu(II). Kinetic study showed that competitive removal of heavy metal ions on poly(AMPS-co-VP) was in accordance with a pseudo-second-order model.
Źródło:: Acta Physica Polonica A; 2017, 132, 3; 505-508
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 28.

Tytuł:: A holistic review of heavy metals in water and soil in Ebonyi SE, Nigeria; with emphasis on its effects on human, plants and aquatic organisms
Autorzy:: Eyankware, Moses Oghenenyoreme
Obasi, Philip Njoku
Powiązania:: https://bibliotekanauki.pl/articles/1840786.pdf
Data publikacji:: 2021
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Heavy Metal
Water
Soil
Human
Uptake
Nigeria
Opis:: A comprehensive review of literature was carried out to evaluate the presence of heavy metals (HMs), with a view to study its effect on man, plants and aquatic organisms in Ebonyi State, southeastern Nigeria. From reviewed literature it was observed that the major source of HM in soil and water can be attributed to anthropogenic activities such as mining and quarrying. Geogenic activities were also implicated by some scholars. Detail analysis showed that 62 % of HMs in water and soil is attributed to mining, while 23 % is attributed to indiscriminate waste disposal, and 15 % is due of other human and geogenic activities. The accumulation of HMs in plants, soil and water poses a serious risk to human, plants and aquatic organisms within the study area. The occurrence of HMs in soil and water if not properly monitored may tend to increase in years to come and this may have negative impact on plants and aquatic organisms. Severe health effects of humans are inevitable. Therefore, constant re-evaluating of HM in water and soil in the area is highly required.
Źródło:: World News of Natural Sciences; 2021, 38; 1-19
2543-5426
Pojawia się w:: World News of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 29.

Tytuł:: Concentration of Copper and Lead in Market Milk and Milk Products of Bangladesh
Autorzy:: Shahriar, S. M. S.
Akther, S.
Akter, F.
Morshed, S.
Alam, M. K.
Saha, I.
Halim, M. A.
Hassan, M. M.
Powiązania:: https://bibliotekanauki.pl/articles/412537.pdf
Data publikacji:: 2014
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Heavy metal
copper
lead
milk
milk products
Opis:: The aim of this work is to detect and estimate the level of selected heavy metals (copper and lead) in milk and milk products in Chittagong City Corporation Areas of Bangladesh. The most important milk and milk products that are likely to be an important contributor to heavy metal exposure was selected. Total 30 samples of milk and milk products were analyzed among these 20 raw milk samples was collected from 20 dairy farms around industrial area in Chittagong City and 10 milk product samples were collected from market in Chittagong City. Detection and estimation of the level of copper and lead were carried out by using “Analytikjena Atomic Absorption Spectrophotometer, model: ZEEnit700P, Germany”. It was found that, most of all milk samples contain copper and lead copper and lead. The content of copper in most of all raw milk and milk products were in the range from 0.02 mg/kg to 0.25 mg/kg. The highest level of copper was found 0.244 mg/kg in milk products. The concentration of lead in milk and milk products were in the range from 0.007 mg/kg to 0.02 mg/kg. The highest concentration of lead was found 0.019 mg/kg in raw milk. These values were compared with standard allowable limit and also with the corresponding values of different countries available in literature.
Źródło:: International Letters of Chemistry, Physics and Astronomy; 2014, 8; 56-63
2299-3843
Pojawia się w:: International Letters of Chemistry, Physics and Astronomy
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 30.

Tytuł:: Biosorption of Ni(II), Pb(II) and Zn(II) on calcium alginate beads: equilibrium, kinetic and mechanism studies
Autorzy:: Nastaj, J.
Przewłocka, A.
Rajkowska-Myśliwiec, M.
Powiązania:: https://bibliotekanauki.pl/articles/778617.pdf
Data publikacji:: 2016
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: biosorption
heavy metal
nickel
lead
zinc
alginate
Opis:: The biosorption process of three divalent metal ions – nickel, lead and zinc- from on calcium alginate from aqueous solution was studied, in single component systems. The biosorbent were investigated by Fourier Transform Infrared Spectroscopy. The batch mode experiments of the adsorption process were carried out as a function of pH, initial metal ions concentration, sorbent dosage and contact time. The adsorption influencing parameters for the maximum removal of metal ions were optimized. The experimental data were analyzed using the Langmuir, Freundlich, Langmuir-Freundlich, Koble-Corrigan and Redlich-Peterson models. The kinetic data of biosorption process were evaluated using pseudo-first and pseudo-second order equations. The Weber and Morris model was employed to interpret the metal ions diffusion in biosorption process.
Źródło:: Polish Journal of Chemical Technology; 2016, 18, 3; 81-87
1509-8117
1899-4741
Pojawia się w:: Polish Journal of Chemical Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 31.

Tytuł:: Phytoremediation of Copper and Zinc Contaminated Soil around Textile Industries using Bryophyllum pinnatum Plant
Autorzy:: Riza, Mumtahina
Hoque, Sirajul
Powiązania:: https://bibliotekanauki.pl/articles/1839592.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: contaminated soil
heavy metal
phytoremediation
Bryophyllum pinnatum
Opis:: Phytoremediation is an acceptable, economical, and eco-friendly way to remediate the metal contaminated soils beside the industrial zone. Like other industries, the textile industries generate the effluent containing several types of pollutants such as metal conjugated dyes, several inorganic and organic substances, etc. When discharged to the environment, metals - specifically heavy metals - exert an adverse impact on soil and other biotas through the food chain. In this study, Bryophyllum pinnatum was used for phytoremediation in the contaminated soil sample collected from the area located around textile industries in Kaliakair, Bangladesh. The experiment was carried out by ex-situ in earthen pots. The concentration of six heavy metals including Zn, Cu, Ni, Cr, Pb, and Cd was analyzed before applying phytoremediation. Two heavy metals, Cu (28.57 µg/g) and Zn (143.88 µg/g) were found and others were not detected in that soil. After planting of Bryophyllum pinnatum, the concentrations of Cu and Zn in the contaminated soil were analyzed at three intervals of 45 days (S3), 90 days (S4), and 135 days (S5) in three replications. The experiment revealed that there was a decline in the concentration of Cu in soil (27.08 µg/g for 45 days and 13.19 µg/g for 90 days) except for the 3rd replication of 135 days (S5). However, the concentration of Zn (mean 103.09 µg/g) in soil was measured at 45 days and then remained within nearer values of concentration for other replications. The amounts of heavy metals uptake for both Cu and Zn by plants can be presented as leaves> stem >root which indicated that heavy metals were transferred from root to shoot over time. Bryophyllum pinnatum can, therefore, be considered as a good hyperaccumulator plant having BCF>1 and TF>1 values as well as possessing a better capacity of phytoextraction of metals.
Źródło:: Journal of Ecological Engineering; 2021, 22, 4; 88-97
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 32.

Tytuł:: Accumulation of Heavy Metals in Organs of Aqueous Plants and its Association With Bottom Sediments in Bug River (Poland)
Autorzy:: Skorbiłowicz, E.
Skorbiłowicz, M.
Malinowska, D.
Powiązania:: https://bibliotekanauki.pl/articles/124487.pdf
Data publikacji:: 2016
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: heavy metal
bottom sediments
aquatic plant
river
Opis:: The article presents the results of studies upon metals (Pb, Zn, Cr, Ni, Cu, Co) in bottom sediments and in various parts of the aquatic plants taken from the Bug river (Poland). The metal contents in the examined environmental elements were determined by AAS technique. The aim of this study was to evaluate the content of metals in bottom sediments and macrophytes (root, stem, leaf) occurring in the Bug river. It was hypothesized that the heavy metal content in plant tissues reflects the amount of metals in sediments. It has been shown that the average metal distribution in the examined plants present in the Bug river and bottom sediments was as follows: Pb, Zn, Co, and Cu sediments>root>leaf>stem, while in the case of Ni and Cr, the contents were greater in roots than in sediment (root>sediment>leaf>stem), although the differences in contents were not large. The study showed that most metals are present in roots and only a small part of them is transported to the stem and leaves. The size of the metal movement within plants may depend on their contents. It was found that for Ni, Cr and Cu in 2014, the bioaccumulation factor was above one, which confirms the high efficiency of metals uptake from the environment as evidenced by statistical analysis. Bioaccumulation factor (BF) was smaller than one for Pb, Co and Zn, confirming the high ability to retain metals in the root. Aquatic plants are an effective barrier for the surface water by accumulating heavy metals in their biomass. Macrophytes are proposed to monitor the river pollution.
Źródło:: Journal of Ecological Engineering; 2016, 17, 4; 295-303
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 33.

Tytuł:: Increasing Effectiveness of Heavy Metal Sorption by Biosorbent Microalgae Beads
Autorzy:: Rinanti, Astri
Fachrul, Melati Ferianita
Hadisoebroto, Rositayanti
Minarti, Astari
Sunaryo, Thalia
Powiązania:: https://bibliotekanauki.pl/articles/2173268.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: bead
sorbent
biosorption
functional group
heavy metal
Opis:: This research was conducted to overcome the Cu2+ heavy metal pollution in the environment through a biotechnological approach with heavy metal sorption process by microalgae beads. Biosorbent in form of beads was produced from Chlorella sorokiniana, Monoraphidium sp., and Scenedesmus obliquus tropical microalgae mobilized with Naalginate polymer. The sorption process is observed on a controlled batch culture with variations of temperature (25, 35, and 45 °C), and observation periods (200th, 220th, 250th, 270th min) as contact time. The absorption efficiency on each temperature variation reaches more than 90%, but the highest absorption efficiency rate is at 92.20% on 35 °C temperature and 200 minutes of contact time. Biosorbent beads with 2–3 mm of diameters show the best sorption ability than the 3–4 mm and 4–5 mm ones. Sorption process is also evident with the existence of intensity alteration on amide, ketone, and sulfhydryl function groups which were consistently weakened until the end of the sorption process. The beads utilized in this research are potentially reusable as biosorbent. Thus, further examination is required to acknowledge the maximum reutilization rate of the beads as biosorbent on heavy metal absorption process.
Źródło:: Journal of Ecological Engineering; 2022, 23, 7; 50--57
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 34.

Tytuł:: Role of molluscs in accumulation of heavy metals in selected habitats of the Zegrzynski Reservoir
Autorzy:: Jurkiewicz-Karnkowska, E.
Powiązania:: https://bibliotekanauki.pl/articles/84046.pdf
Data publikacji:: 1999
Wydawca:: Uniwersytet Mikołaja Kopernika. Wydział Biologii i Ochrony Środowiska. Stowarzyszenie Malakologów Polskich
Tematy:: mollusc
Viviparus viviparus
Lymnaea stagnalis
Lymnaea peregra
Dreissena polymorpha
Anodonta anatina
Anodonta cygnea
Unio pictorum
Unio tumidus
heavy metal accumulation
heavy metal
habitat
Zegrzynski Reservoir
heavy metal content
life time
Źródło:: Folia Malacologica; 1999, 07, 4
1506-7629
Pojawia się w:: Folia Malacologica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 35.

Tytuł:: Heavymetalowy „Krzyk” a głębia podmiotu nowoczesnego
Heavy metal “Krzyk” and the profundity of the modern self
Autorzy:: Żyła, Mateusz
Powiązania:: https://bibliotekanauki.pl/articles/520734.pdf
Data publikacji:: 2019
Wydawca:: Uniwersytet Pedagogiczny im. Komisji Edukacji Narodowej w Krakowie
Tematy:: głębia
ekspresja
krzyk
heavy metal
profundity
expression
scream
Opis:: Artykuł jest próbą połączenia teorii „głębi” podmiotu nowoczesnego Charlesa Taylora z książki Źródła podmiotowości. Narodziny tożsamości nowoczesnej z postulatami Stanisława Przybyszewskiego zawartymi w artykule O „nową” sztukę (mare tenebrarum, teoria powinowactw). Autor w odniesieniu do myśli Taylora i Przybyszewskiego dokonuje analizy tekstu literackiego (Krzyk Przybyszewskiego) oraz tekstu literacko-muzycznego (Zwierzenia kontestatora i Heavy Metal Świat zespołu TSA) w celu ukazania artystycznych poszukiwań „czegoś więcej” (Taylor) tudzież takich form ekspresji, które wydają się ekwiwalentem procesów zachodzących w „głębi”, a więc w tej części duszy, która jest niedostępna ludzkim zmysłom, a jej przejawy są jedynie uchwytne dla jednostki / artysty / geniusza. W procesie analizy autor zwraca uwagę również na pamiętnikarskie formy Przybyszewskiego (Moi współcześni), w których pisarz przeczuwa, iż „odgłosy ziemi rodzinnej” są pradźwiękiem, atawistycznym rykiem pochodzącym wprost z głębi. Pozostaje pytanie: jak za pomocą sztuki zobrazować ten tajemniczy rejon duszy? Czy jedyną szansą jest muzyka Chopina? Wydaje się, że nie, ale o tym Przybyszewski nie mógł wiedzieć. Dopiero kilkadziesiąt lat po jego śmierci powstała muzyka wrzasku, atawistycznych odruchów, muzyka „wykrzyku duszy”, najchętniej penetrująca to, co ukrywa się w głębi, a więc i zachowania powszechnie niezrozumiałe, w niektórych kręgach uznane za niemoralne, nieetyczne.
The article tries to combine Charles Taylor’s theory of the “profundity” of the modern self from his book Sources of the self: The making of modern identity with Stanisław Przybyszewski’s postulates, presented in his article “For the new art” (mare tenebrarum, the kinship theory). The author, referring to Taylor’s and Przybyszewski’s ideas, analyses a literary text (“Krzyk” by Przybyszewski) and the lyrics (Zwierzenia kontestatora and Heavy Metal Świat by TSA), in order to present the searching for (Taylor), as well as such forms of expression which could be equivalent to the processes happening in the profundity, i.e. in that part of the soul which is inaccessible for human senses, and its indications may be noticed only by an individual/artist/ genius. During the analysis process, the author points to the diary forms of Przybyszewski (Moi współcześni), in which the writer has a premonition that the “fatherland sounds” are a kind of ancient tune, an atavistic roar coming from the depth. The question remains: how to illustrate this part of the soul through art? Is Chopin’s music the only chance? It does not seem to be, but Przybyszewski can’t have realised that. It was only a few decades after his death that the music of scream and atavistic reactions appeared. This music of a screaming soul most willingly penetrates what is hidden inside, i.e. commonly misunderstood behaviours, in some circles considered to be immoral and unethical.
Źródło:: Annales Universitatis Paedagogicae Cracoviensis. Studia de Cultura; 2019, 11, 3 "Kultura metalowa w przestrzeni rytualnej i medialnej"; 134-142
2083-7275
Pojawia się w:: Annales Universitatis Paedagogicae Cracoviensis. Studia de Cultura
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 36.

Tytuł:: Comparative Proximate Analysis of Five Commercially Sold Maggi as Condiments in Gwagwalada, North Central, Nigeria
Autorzy:: Adeeko, E. L.
Shittu, G. A.
Adeeko, T. O.
Umar, M.
Powiązania:: https://bibliotekanauki.pl/articles/1075587.pdf
Data publikacji:: 2019
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: bioaccumulation
bouillon
condiments
heavy metal
mineral elements
proximate
Opis:: Determination of the proximate, nutritionally valuable mineral in five samples of food seasonings label as, A, B, C, D, & E food condiments readily consumed in Nigeria were obtained from Gwagwalada Central Market Abuja. Investigating the concentrations of some mineral elements such as, iron (Fe), zinc (Zn), and two heavy metals, cadmium (Cd) and lead (Pb) were carried out using AA320N Atomic Absorption Spectrophotometer (AAS) after acid digestion with 2:1 HNO3/HClO4. The result shows that all samples contained high levels of protein (13.63% ±0.53%) with mean value moisture, ash, fat, fiber, and carbohydrate for all samples levels being (3.94%±0.64%), (57.51% ±4.27%), (5.11% ±0.20%), (0.02% ±0.00%) and (18.41% ±0.41%) respectively. Sample D has high Fe concentration with (0.04 ±0.01 μg/g) and Sample B & C has low Fe concentration with (0.01 ±0.00 μg/g). Sample D & E has high Zn concentration with (0.03 ±0.01 μg/g) and sample A, B & C has low Zn concentration with (0.02 ±0.01 μg/g). In cadmium, sample A has the high concentration (0.03±0.01μg/g), sample B & D has the low Cd concentration (0.02 ±0.00 μg/g). Sample D had the high Pb concentration (0.05 ±0.00 μg/g), sample C had the low Pb concentration (0.02±0.01 μg/g). In conclusion, Fe, Zn, Cd and Pb were both present in low concentrations in all the samples analyzed. The presence of Cd and Pb in the food seasonings even at low concentration could prove fatal through bioaccumulation. The low level of the toxic metals, Pb and Cd indicates that these products meet the safe limits specified by most food standards.
Źródło:: World Scientific News; 2019, 122; 183-192
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 37.

Tytuł:: Concentrations of selected toxic elements in ewe living near an environmentally loaded area of eastern part of Slovakia
Autorzy:: Pošiváková, Terézia
Veszelits Laktičová, Katarína
Hromada, Rudolf
Vargová, Mária
Korytár, Ľuboš
Švajlenka, Jozef
Húska, Miroslav
Hatalová, Elena
Pošivák, Ján
Powiązania:: https://bibliotekanauki.pl/articles/987018.pdf
Data publikacji:: 2017
Wydawca:: Instytut Medycyny Wsi
Tematy:: biochemical marker
environment
heavy metal
health status
ewes
Opis:: Introduction and objective. Research focused on the monitoring of selected heavy metals in ewes’ blood. Concentrations of selected toxic elements, lead, cadmium and zinc, in ewes living near an environmentally-loaded area, concerned 15 ewes (aged 3–4 years) in good physical condition, during the spring of 2014 and 2015 in the eastern part of Slovakia. The aim of the research was to determine the concentration of selected heavy metals and state the correlations of selected heavy metals in ewes’ blood. Materials and method. Within the period of 2 years, 15 ewe were evaluated. Ewes’ blood samples were collected twice during the spring season from a farm located in area Spiš, eastern Slovakia, and then analysed for heavy metal contents. In the area under investigation, contamination with heavy metals was assumed as a result of intensive agricultural development and former mining activities. The level of selected heavy metals in the experimental group of animal blood was determined using an optical spectrophotometry. Results. Statistical analyses were carried out using the Statistica programme. The significant differences between means were calculated by the statistical method of the non-parametric Mann-Whitney´s U test. The statistical test experimental group of ewes in 2014 and 2015 confirmed the presence of selected heavy metals in ewes. The measured values of Cd (P=0.0003), Pb (P=0.0200) and Zn (P=0.0018) showed significant differences when comparing the years 2014 and 2015. Conclusion. The obtained and analysed blood samples confirmed the presence of selected heavy metals in ewes from area of Spiš in eastern Slovakia, which belongs the sub-region or is among the localities environmentally burdened. The conclusions are centred on the population’s interest and concern for the environment, as well as on the preoccupation with factors that affect the satisfaction of basic needs, the local agricultural development and former mining activities.
Źródło:: Annals of Agricultural and Environmental Medicine; 2017, 24, 4
1232-1966
Pojawia się w:: Annals of Agricultural and Environmental Medicine
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 38.

Tytuł:: Treatment of Laboratory Wastewater by Using Fenton Reagent and Combination of Coagulation-Adsorption as Pretreatment
Autorzy:: Arita, Susila
Agustina, Tuty Emilia
Ilmi, Nurul
Pranajaya, Violanda Dwi Wulandari
Gayatri, Rianyza
Powiązania:: https://bibliotekanauki.pl/articles/2173343.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: laboratory wastewater
fenton reagent
coagulation
adsorption
heavy metal
Opis:: Laboratory wastewater contains organic and inorganic compounds that are harmful to the environment when disposed of without prior treatment. Besides the high COD and BOD values, the laboratory wastewater also contains metals such as iron (Fe), zinc (Zn), copper (Cu), chromium (Cr), and lead (Pb) which is categorized as dangerous waste material and can pollute the groundwater. Although the quantity of wastewater produced by the laboratory is relatively small, it has a real impact on the environment around the laboratory. However, the wastewater has to be treated properly before being discharged into the environment. The aim of the research was to study the laboratory wastewater treatment by using Fenton’s reagent with coagulation and adsorption pretreatment. In the pretreatment with coagulation, three types of coagulants are used, namely PAC (Poly Aluminum Chloride), ACH (Aluminum Chlorohydrate) and Aluminum Sulfate (AS) with their respective concentrations of 10–80 ppm. The highest percentage of average pollutant removal of 58.21% was found when 80 ppm of AS was applied. The pretreatment was continued by adsorption with activated carbon and zeolite adsorbents within 60–120 minutes of mixing time. It was detected that the most optimum adsorbent was activated carbon with average pollutant removal of 50.22% within 1 hour of mixing time. Processing was extended by utilized Fenton’s reagent using a variation of the molar ratio between 1:100 and 1:400. It was obtained that the best molar ratio to degrade the laboratory wastewater is 1:300 with an average removal of pollutant of 43.45%. As a result of laboratory wastewater treatment using combine Fenton’s reagent and coagulation-adsorption pretreatment, an average pollutant removal of 90.81% was obtained. The final content of COD, BOD, TSS, as well as Cu and Pb metal has met the environmental quality standard.
Źródło:: Journal of Ecological Engineering; 2022, 23, 8; 211--221
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 39.

Tytuł:: Wastewater Treatment Using Activated Carbon Produced from Oil Shale
Autorzy:: Hamdan, Mohmmad Ahmad
Sublaban, Esraa Taha
Al-Asfar, Jamil Jawdat
Banisaid, Mai Abdullah
Powiązania:: https://bibliotekanauki.pl/articles/2202355.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: activated carbon
wastewater treatment
removing
heavy metal
water
Opis:: In recent years, many researchers have expressed interest in wastewater treatment using activated carbon produced from cheap raw materials. In this work, an activated carbo-aluminosilicate (ACS) – supported zero-valent iron (ZVI) composite was produced from Um AL-Rasa oil shale mine and examined to eliminate Chromium (VI) from contaminated water. Activation of raw oil shale fine particles (< 212 μm) was chemically performed using 95 and 5% wt of H2SO4 and HNO3, respectively, as activating agents. The activated material was further treated with caustic soda, named ACS, and modified with fine zero-valent iron particles < 212 μm), called ZVI/ACS composite. Kaolin was added to the composite with the ratio: (50 % wt. light kaolin: 50 % wt. ACS), named as ZVI/ACS/K. The XRD analysis for both composites confirmed iron dispersion at 45°. Adsorption experiments were carried out using the two adsorbents ZVI/ACS & ZVI/ACS/K under different values of pH, and adsorbent dosage. The results indicated that the reduction of Chromium was maximum under the 3 pH value and 2.0 gm amount of ZVI/ACS/K. Furthermore, it was found the removal rate was enhanced by 17% and 24.7% when ZVI/ACS & ZVI/ACS/K adsorbents were used, respectively, compared to that when only ACS adsorbent was used alone. Finally, the dependency of Chromium removal on its initial concentration by ZVI/ACS/K adsorbent was also investigated at two different temperatures of 27° and 50°. The results indicated a decrease in the removal rate of the Chromium as the concentration increased at 27°; however, the removal rate previously enhanced at 50° at all initial concentrations.
Źródło:: Journal of Ecological Engineering; 2023, 24, 2; 131--139
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 40.

Tytuł:: Heavy Metals Chelating Ability and Antioxidant Activity of Phragmites australis Stems Extracts
Autorzy:: Sellal, Abdelhakim
Belattar, Rima
Bouzidi, Abdelouahab
Powiązania:: https://bibliotekanauki.pl/articles/124953.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: chelation
Phragmites australis
common reed
DPPH
heavy metal
Opis:: In this study, the ability of hexane (HSE), chloroform (CSE), ethyl acetate (EASE) and methanolic (MSE) stems extracts from Phragmites australis or EDTA (as standard) to chelate iron using ferrozine method or zinc and copper using the murexide method is carried out in vitro. When the increased volumes of the HSE studied were taken from a stock solution of a fixed concentration 1 mg/ml at 25–175 μl for the iron and zinc chelating assay, 1–7 mg/ml for the copper chelating assay gave a significant (p≤ 0.01) activity. The obtained results showed that the HSE have the highest capacity to chelate ferrous ions below the EDTA (standard chelator) with absorbance arrive to the lesser extent 0.24±0.005, 0.04±0.013 which expresses 86% and 97% (compared to the control) of inhibition, respectively. For the murexide chelation, the results obtained also showed that the HSE and EDTA have a good (p≤ 0.01) chelating dose dependent effect towards zinc and copper ions with increased absorbance 0.45±0.02 and 0.42±0.02 with 54% and 56% of inhibition, respectively, for the zinc chelation and 0.66±0.03, 0.13±0.005 represent 44% and 88% for copper chelation. In contrast to the antioxidant capacity, the extract of hexane, ethyl acetate, chloroform and methanol from leaves, stems and roots of the Phragmites australis plant have a very low scavenger effect to the radical DPPH where the maximum inhibition is approximately 13.79%, obtained with the maximum volume. Finally, the HPLC analysis of effective extract (HSE) confirmed the presence of oxalic, citric, malic, succinic, fumaric, formic, acetic, propionic and butyric or iso butyric acid.
Źródło:: Journal of Ecological Engineering; 2019, 20, 2; 116-123
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 41.

Tytuł:: Content of zinc, lead and cadmium in selected agricultural soils in the area of the Śląskie and Ciężkowickie foothills
Autorzy:: Józefowska, A.
Miechówka, A.
Gąsiorek, M.
Zadrożny, P.
Powiązania:: https://bibliotekanauki.pl/articles/125031.pdf
Data publikacji:: 2014
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: Silesian and Ciężkowickie Foothills
heavy metal
land use
Opis:: The purpose of this study was to evaluate the state of contamination with zinc, lead, and cadmium in selected soils of the Śląskie and Ciężkowickie Foothills and to determine the impact of the type of agricultural use and selected physico-chemical properties of soils on heavy metal content. The test soils were characterized by natural content of zinc, lead, and cadmium in most cases. Only one type of soil located on Śląskie Foothills developed increased levels of Cd (1.1 mg kg-1). The content of zinc, lead, and cadmium in the surface layer (0–30 cm) was higher in the soils of Śląskie Foothills than in soils of Ciężkowickie Foothills. The bedrocks from which the soils of these two mesoregions are formed differed significantly only in the content of zinc (it was higher in the soils of Śląskie Foothills). The content of Zn, Pb, and Cd in the surface layer of soil depends on its texture and organic carbon and total nitrogen content. There was also a positive correlation between the content of Pb and Cd and hydrolytic acidity and between the content of Zn and Ca and CEC. Different types of land uses did not influence the content of the metals.
Źródło:: Journal of Ecological Engineering; 2014, 15, 1; 74-80
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 42.

Tytuł:: Thermal Recycling of Bentonite Waste as a Novel and a Low-Cost Adsorbent for Heavy Metals Removal
Autorzy:: Shubber, Mukhtar D. H.
Kebria, Daryoush Yousefi
Powiązania:: https://bibliotekanauki.pl/articles/24201677.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: bentonite
heavy metal
isotherm
thermal remediation
hazardous waste
Opis:: The objectives of this study are the thermal remediation of bentonite waste to convert non-hazardous material, and the use of the obtainedthermal recycling bentonite waste (TRBW) as a novel low-cost adsorbent for the removal of heavy metals from aqueous solution using the batch system. The origin of bentonite waste is a by-product from plants of spent engine oil recycling [PSEOR]. It was remediated in two stages, directly burning and in the electrical furnace at 700 °C for 100 minutes to eliminate oil residues and impurities. The tests of XRD, BET, FTIR, EDX, and SEM were accomplished to identify the chemical and physical characteristics of TRBW. After then, the examination of the ability of TRBW to adsorption of the fiveheavy metals (Zn, Ni, Cd, Cr, and Pb) with different experimental parameters such as initial concentration, adsorbent dose, temperature, pH, and contact time. Different models of isotherm, kinetic, and thermodynamic were utilized andthe results indicate that the nature of heavy metals adsorption onto TRBW was homogeneous. According to the maximum adsorption capacities, the metals ranked as Pb> Cd> Zn> Cr> Ni, and adsorption capacities were 94.97, 73.85, 39.56, 38.34, and 36.33 mg/g, respectively.
Źródło:: Journal of Ecological Engineering; 2023, 24, 5; 288--305
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 43.

Tytuł:: Evaluation of Pesticide and Heavy Metal Contamination on Soil Properties and Microbiota in Thailand’s Mountainous Region
Autorzy:: Kroeksakul, Patarapong
Ngamniyom, Arin
Silprasit, Kun
Sutthisaksopon, Phanom
Sriyapai, Thayat
Phowan, Naphat
Singhaboot, Pakjirat
Powiązania:: https://bibliotekanauki.pl/articles/27323810.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: mountainous region
heavy metal
pesticides
microbiota
soil properties
Opis:: The article aims to investigate the state of soil elements in upland agriculture and the state of pesticide contamination in the environment of differing highland agricultural areas in Thailand. The number of heavy metals present was Fe > Mn > Zn > Pb > Ni > Cu > Cd, dominant pesticide contamination in the carbamate group is methomyl (0.11 mg/kg), and the organochlorine group is triazophos (0.02 mg/kg). Pesticide contamination was found to positively and significantly correlate with the soil’s total N and Fe content (p < 0.01). In the soil microbes, the dominant genera of Aquabacterium were found at the highland agriculture site H1, Massilia at H2, and Sphingomonas at H3.
Źródło:: Journal of Ecological Engineering; 2023, 24, 7; 331--344
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 44.

Tytuł:: Heavy metal distribution in the different p arts of mollusks by using multivariate analysis
Ocena akumulacji metali ciężkich w różnych częściach mięczaków z wykorzystaniem analizy wieloczynnikowej
Autorzy:: Nikolov, M.
Simeonova, P.
Mitev, V.
Powiązania:: https://bibliotekanauki.pl/articles/388540.pdf
Data publikacji:: 2009
Wydawca:: Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:: mięczaki
metal ciężki
analiza wieloczynnikowa
mollusks
heavy metal
multivariate analysis
Opis:: The mollusk samples were obtained from several locations along the Black Sea coast (gulf of Varna and Gulf of Burgas, Bulgaria). The samples were dissected into five different soft tissues. The soft tissues and the shell were then analyzed for heavy metals. It was found that the highest concentrations of Cu (112-178 [mi]g/g dm) and Zn (117-161 [mi]g/g dm) were found in the tentacle; the highest concentrations of Cd (4.41-5.37 [mi]g/g dm), Pb (53.2-63.8 [mi]g/g dm) and Ni (26.1-27.9 [mi]g/g dm) were found in the shell. On the other band, the highest Fe concentrations (910-2921 [mi]g/g dm) were found in the operculum. The cluster analysis revealed that the accumulation of heavy metals were clustered into a few groups, where the metals found in the shell were significantly different from the other soft tissues. Results from the cluster analysis were further complimented by the correlation analysis and multiple stepwise linear regression which revealed that the accumulation by the different parts were interrelated with one another. It was also found that the soft tissue was the most influential part in accumulation of heavy metal studied. Thus, it indicates the ability oft he mollusks to accumulate heavy metal, hence fulfilling the criteria as a good biomonitor.
Próbki mięczaków były pobierane w kilku miejscach wzdłuż wybrzeża Morza Czarnego (Zatoka Warna i Zatoka Burgas, Bułgaria). Z próbek wyodrębniono pięć różnych tkanek miękkich. W tkankach miękkich i skorupach omaczano metale ciężkie. Stwierdzono, największe stężenia Cu (112-178 [mi]g/g s.m.) i Zn (117-161 [mi]g/g s.m.) w mackach; a największe stężenie Cd (4.41-5.37 [mi]g/g s.m.), Pb (53.2-63.8 [mi]g/g s.m.) i Ni (26.1-27.9 [mi]g/g s.m.) stwierdzono w skorupie. Z drugiej strony, największe stężenia Fe (910-2921 [mi]g/g s.m.) stwierdzono w pokrywie skrzelowej. Analiza klastrów ujawniła, że akumulowane metale ciężkie były pogrupowane w kilka skupień, w których metale oznaczone w skorupkach były inne od tych zidentyfikowanych w tkankach miękkich. Wyniki analizy klastrów były weryfikowane przez analizę korelacji i regresji liniowej wielostopniowej, które wykazały, że akumulacja w różnych częściach była wzajemnie ze sobą powiązana. Stwierdzono również, że w tkankach miękkich kumuluje się najwięcej metali ciężkich. W związku z tym wskazano na zdolność mięczaków do kumulowania metali ciężkich, a tym samym stwierdzono, że spełniają one kryteria charakteryzujące dobre biomonitory.
Źródło:: Ecological Chemistry and Engineering. A; 2009, 16, 3; 223-229
1898-6188
2084-4530
Pojawia się w:: Ecological Chemistry and Engineering. A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 45.

Tytuł:: Characteristics and metal leachability of natural contaminated soil under acid rain scenarios
Autorzy:: Tan, Wenfa
Li, Yuan
Ding, Lei
Wang, Yachao
Li, Jiangxiang
Deng, Qinwen
Guo, Feng
Xiao, Xue
Powiązania:: https://bibliotekanauki.pl/articles/205435.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: heavy metal
soil pollution
fraction analysis
soil leaching
Opis:: Contamination of soil with heavy metals has become a worldwide environmental problem, and receives great attention. In this study, we aim to investigate soil pollution level affected by an industrial district nearby. The total amount of typical heavy metals in the soils (Hengyang Songmu Industrial Park, Hunan Province, China) was analyzed. In addition, the fraction analysis and laboratory simulation leaching via different pH rainwater was carried out to study the migration and transformation of heavy metals. The main results show that the contents of Cu, Zn, Pb, Cr and Cd in the samples were higher than the soil background values in Hunan Province. The heavy metals forms, analyzed by sequential extraction method, show that the proportion of the unstable form of Cd, Zn and Pb was more than 50%. I_geo values indicate that the heavy metal pollution degree of soil sample #5 at the investigated area is recorded in the order of Cd(6.42), Zn(2.28), Cu(1.82), Pb(1.63), and Cr(0.37). Cu, Zn, Pb, Cr and Cd in this area could pose a potential leaching risk to the environment which may affect the food chain and constitute a threat to human health. It would be necessary to take steps to stabilize and monitor the heavy metals in soil.
Źródło:: Archives of Environmental Protection; 2019, 45, 2; 91-98
2083-4772
2083-4810
Pojawia się w:: Archives of Environmental Protection
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 46.

Tytuł:: Synthesis of Analcime Zeolite Using Al and Si from Waste Resources for the Removal of Pb/Cd Ions from Aqueous Solution
Autorzy:: Kang, Yubin
Im, Byoungyong
Choi, Jin-Ju
Yoon, Jin-Ho
Kim, Dae-Guen
Powiązania:: https://bibliotekanauki.pl/articles/2048875.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: zeolite
analcime
waste resources
recycling
heavy metal removal
Opis:: Zeolites, minerals with the formula Mx/n[AlO2]x(SiO2)y] zH2O, are environmentally friendly materials used as water treatment adsorbents, gas adsorbents, and petrochemical catalysts. This study used a mixture of aluminum black dross and waste glass to synthesize zeolites via a hydrothermal synthesis and analyzed the effects of varying reaction time on phase changes under different synthesis conditions. With increased reaction times, a phase change from zeolite Na-P1 to analcime was observed; on employing hydrothermal synthesis at 150°C for 96 h, the majority of the crystalline structures changed into analcime. Heavy metal cation adsorption was tested to assess the applicability of the synthesized analcime to water treatment. Zeolite adsorption of at least 95% was observed for both Pd and Cd ions. Although a higher level of adsorption was observed for Pb ion than Cd ion, Cd ion was demonstrated to undergo relatively faster adsorption when tested under optimal pulp density at the same level of adsorption (95%).
Źródło:: Archives of Metallurgy and Materials; 2022, 67, 1; 67-72
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 47.

Tytuł:: The Impact Evaluation of Zeolitization Parameters on the Properties of Sewage Sludge Ash
Autorzy:: Latosińska, Jolanta
Powiązania:: https://bibliotekanauki.pl/articles/124836.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: sewage sludge ash
synthetic zeolites
heavy metal
CEC
Opis:: The incineration of municipal sewage sludge causes the formation of ash, which needs further utilization. The literature gives only few examples of the chemical sewage sludge ash conversion with the hydrothermal method. The effect of conversion depends on the properties of the raw material and the process parameters. According to the domestic and foreign test results of the conversion of fly ash from coal, the fusion method is more effective. The aim of the paper was to evaluate the impact of chemical sewage sludge ash conversion with the fusion method on the chosen properties of the obtained material. The applied conversion parameters were the ratio of sewage sludge ash:NaOH, the concentration of NaOH, the activation time and temperature as well as the crystallization temperature and time. In some of the samples, the introduction of the fusion caused the formation of the following, e.g. (hydroxy)sodalite, zeolite X and zeolite Y, zeolite P, (hydroxy)cancrinite. The temperature of the thermal treatment of sludge, the ratio of ash:NaOH and the crystallization time were the parameters having a statistically significant impact on the effect of zeolitization and the properties of the obtained material, but the changes of their values had little effect on the tested features of the modified ash. On the basis of the leaching of Cd, Cr and Ni from the samples after the conversion it was proven that a higher temperature of the thermal treatment of sewage sludge was favourable for the formation of permanent structures.
Źródło:: Journal of Ecological Engineering; 2019, 20, 10; 195-205
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 48.

Tytuł:: Wykorzystanie haloizytu i zeolitu syntetycznego w sorpcji metali ciężkich
The use of halloysite and synthetic zeolite in heavy metals sorption
Autorzy:: Skawińska, A.
Owsiak, Z.
Baran, T.
Hernik, K.
Powiązania:: https://bibliotekanauki.pl/articles/392294.pdf
Data publikacji:: 2017
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Ceramiki i Materiałów Budowlanych
Tematy:: zeolit syntetyczny
haloizyt
modyfikacja
metal ciężki
sorpcja metali ciężkich
pojemność sorpcyjna
synthetic zeolite
halloysite
modification
heavy metal
heavy metal sorption
sorption capacity
Opis:: W artykule przedstawiono wyniki badań zeolitu typu A otrzymanego z haloizytu. Na podstawie rentgenowskiej analizy dyfraktometrycznej (XRD) i zmian mikrostruktury po poddaniu haloizytu działaniu NaOH stwierdzono zeolit 4Å. W artykule porównano pojemność sorpcyjną haloizytu oraz zeolitu syntetycznego. Do badań wykorzystano wodne roztwory soli [Pb(NO3)2; Zn(NO3)2; Cr(NO3)3 · 9H2O] o stężeniu 15 mM/dm3. Na podstawie otrzymanych wyników badań stwierdzono, że haloizyt charakteryzuje się pięciokrotnie niższą pojemnością sorpcyjną w porównaniu do zeolitu 4Å w odniesieniu do kationów cynku oraz ołowiu. Analiza składu chemicznego w punkcie (EDS) potwierdziła obecność metali ciężkich w haloizycie oraz zeolicie syntetycznym.
The paper presents studies results of zeolites 4Å obtained from halloysite. The presence of zeolite 4Å was confirmed by X-ray diffraction analysis (XRD) and microstructure changes after activation of halloysite by NaOH. Halloysite and synthetic zeolite sorption capacities properties were compared in the paper. Water solutions of salts [Pb(NO3)2; Zn(NO3)2; Cr(NO3)3 · 9H2O] in concentration of 15 mM/dm3 were used in studies. Based on obtained results, it was stated that halloysite has 5-fold lower sorption capacity compared to zeolite 4Å for zinc and lead cations. X-ray microanalysis in point (EDS) confirmed heavy metals presence in halloysite and synthetic zeolite.
Źródło:: Prace Instytutu Ceramiki i Materiałów Budowlanych; 2017, R. 10, nr 30, 30; 117-126
1899-3230
Pojawia się w:: Prace Instytutu Ceramiki i Materiałów Budowlanych
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 49.

Tytuł:: Laboratory studies on the effect of heavy metals on the survival and respiratory activity of estuarine neustonic and planktonic bacteria
Badania laboratoryjne wpływu metali ciężkich na przeżywalność i aktywność oddechową estuariowych neustonowych i planktonowych bakterii
Autorzy:: Mudryk, Z.
Dwulit, M.
Powiązania:: https://bibliotekanauki.pl/articles/84805.pdf
Data publikacji:: 2004
Wydawca:: Akademia Pomorska w Słupsku
Tematy:: heavy metal
survival
respiratory activity
estuarine neustonic bacteria
bacteria
planktonic bacteria
neustonic bacteria
ecological process
aquatic ecosystem
heavy metal concentration
Źródło:: Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline; 2004, 08
1643-0115
Pojawia się w:: Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 50.

Tytuł:: The effectiveness of biochar in mitigating changes in the chemical properties of sandy soil treated with various chemicals
Autorzy:: Gondek, K.
Mierzwa-Hersztek, M.
Kopec, M.
Losak, T.
Bennewitz, E.
Spandel, A.
Kuc, K.
Powiązania:: https://bibliotekanauki.pl/articles/1192382.pdf
Data publikacji:: 2020
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:: biochar
soil
sorption complex
pH
electrical conductivity
heavy metal
Opis:: The progressive degradation of soils is a recently increasing environmental problem. The risk of soil degradation may be associated, for example, with landslides, flooding, soil erosion. However, these are relatively rare phenomena compared to the risk of chemical degradation caused by human activity. Given the limited research on the positive effect of miscanthus biochar on soil properties, a study was carried out aimed at determining changes in pH, electrical conductivity, sorption properties, and mobility of selected heavy metals in sandy soil treated with various chemicals. Biochar used in the study was produced at a temperature of 300°C. The addition of biochar to soil generally increased the pH value, regardless of the type of chemical degradation. The study revealed a decrease in the hydrolytic acidity value and, at the same time, no significant changes in the content of alkaline cations and sorption capacity of the biochar-treated soil. The best effect on reducing the mobility of trace elements was achieved by adding biochar to the soil supplemented with acidifying substances. Bearing in mind the current agricultural and environmental problems, there is a need to increase the effectiveness of biochar and to direct its action to improve specific soil properties.
Źródło:: Journal of Elementology; 2020, 25, 3; 1045-1058
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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