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Tytuł:
Determination of metal content in sewage sludge and sewage sludge ash to find opportunities to use them in the construction industry
Autorzy:
Świerczek, Lesław
Cieślik, Bartłomiej
Powiązania:
https://bibliotekanauki.pl/articles/1163144.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
heavy metals
sewage sludge
sewage sludge ash
sewage sludge management
Opis:
Sewage sludge management is becoming an increasing problem in developed and developing countries. Due to their physicochemical properties (mainly high content of heavy metals) a safe method of utilization is sought. Considering environmental protection, energy recycling, reduction in use of the raw materials and the possibility of immobilization hazardous substances, the use of ashes in building materials becomes a very good way of utilization. Both unprocessed sewage sludge and ashes after their thermal utilization can be used in the construction industry. Before using sediments and ashes, it is necessary to analyze the content of heavy metals, because they can have a negative effect, for example, on cement-stabilized products. The purpose of this work was to determine selected metals (Cd, Cu, Ni, Pb, Zn, Cr, Mg, Mn, Fe) in the primary, dehydrated, digested, excess sludge and ash after his incineration to check and compare heavy metal content. The obtained data can be used to optimize the production process of cement products that contain sewage sludge at differ form, and confirm the environmental safety of proposed approaches.
Źródło:
World Scientific News; 2018, 110; 227-235
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Heavy metal compounds in wastewater and sewage sludge
Związki metali ciężkich w ściekach komunalnych oraz osadach ściekowych
Autorzy:
Szymański, K.
Janowska, B.
Jastrzębski, P.
Powiązania:
https://bibliotekanauki.pl/articles/1819574.pdf
Data publikacji:
2011
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
metale ciężkie
ścieki komunalne
osady ściekowe
heavy metals
municipal sewage
sewage sludge
Opis:
Sewage sludge happens to contain heavy metal compounds, including toxic mercury, considerable concentrations of which indicate appearance of new anthropogenic sources of those elements [1, 3, 4, 11]. The sewage sludge is frequently used, due to fertilising components content, in production of compost and the manufactured product (organic fertiliser) is used for soil fertilisation [5, 6]. In the event of excessive concentration of toxic, and even carcinogenic compounds of those metals in natural environment they cause its irreversible pollution. The sludge can also be incinerated, due to considerable presence of organic substance, and such generated waste (slag, ash) is often used in agriculture or applied in production of building materials - then it becomes a valuable raw material [7, 15, 19]. Reclamation of sewage sludge both through composting as well as incineration requires their preliminary treatment. Sewage sludge requires dehydration or drying before it arrives at the compost facility or incineration plant. Therefore, the manufactured product makes a concentrate in which concentration of the heavy metals can be many times (even tenfold) higher than in the sludge subjected to this process [8]. In this study an attempt was made to assess the ways of migration of heavy metals contained in municipal sewage and in sewage sludge generated in one of the seaside wastewater treatment plants. It is suspected that the sewage contains some amount of mercury compounds originating from various sources, including laundry sewage. The research work performed has indicated that following sewage thickening and then dehydration in presses the concentration of those elements in sewage sludge increases causing, consequently, increase of heavy metals concentration from low level in raw sewage up to a considerable level in sewage sludge [13, 14]. Also an assumption can be made that the metals are partly bound with the solid phase contained in tested sewage, therefore, they will occur in the thickened and then dehydrated sewage sludge. It's clear that some amount of those metals remains in the liquid phase after dehydration and depending on the applied wastewater treatment process, it is recycled or discharged to receiving water [16].
W osadach ściekowych zdarzają się przypadki występowania związków metali ciężkich, w tym toksycznej rtęci, których znaczne stężenie wskazuje na pojawienie się nowych antropogenicznych źródeł tych pierwiastków. W przypadku nadmiernej koncentracji toksycznych, a nawet rakotwórczych związków tych metali w środowisku naturalnym, powodują one jego nieodwracalne skażenie Zarówno unieszkodliwianie osadów ściekowych poprzez kompostowanie, jak też spalanie, wymaga wstępnej obróbki. Osady ściekowe, zanim trafią do kompostowni lub spalarni odpadów wymagają odwodnienia lub wysuszenia. Tym samym powstały produkt stanowi koncentrat, w którym stężenie tych metali może być wielokrotnie (nawet dziesięciokrotnie) wyższe niż w ściekach poddawanych temu procesowi. Z przeprowadzonych badań wynika, że w próbkach badanych ścieków surowych niektóre metale ciężkie występują w niewielkich ilościach lub na poziomie śladowym (Hg, Cd i Cr). Obserwuje się znaczący wzrost wszystkich metali ciężkich w osadach ściekowych zagęszczonych i odwodnionych, które można uszeregować następująco: Zn > Cu > Pb > Ni > Hg >Cr, Cd W stosunku do zawartości metali ciężkich w ściekach, zawartość tych metali w ściekach zagęszczonych i odwodnionych była około 10-krotnie wyższa. W osadach ściekowych zagęszczonych nastąpiła kumulacja metali ciężkich w stosunku do zawartości tych metali w ściekach surowych jak też odwodnionych. Wzrost ten dotyczy: Cu o 106%, Cr o 282%, Ni o 249%, Zn o 150% i Hg o 28%. Jednocześnie w ściekach zagęszczonych zmalało stężenie kadmu do ilości śladowych oraz ołowiu o 59%. Oznacza to, że kadm i ołów są zdecydowanie słabiej sorbowane przez składniki mineralne i organiczne osadów, a tym samym mogą przenikać wraz z wodami ociekowymi do zbiorników wodnych. Źródłem rtęci w ściekach pralniczych mogą być dywany i wykładziny podłogowe niewiadomego pochodzenia, które mogą zawierać związki rtęci, ołowiu i chromu. Do oceny zjawisk zachodzących w badanych ściekach oraz osadach ściekowych można wykorzystać popularne pakiety numeryczne, które dobrze opisują korelacje między poszczególnymi wskaźnikami zanieczyszczenia ścieków. Większość badanych składników wykazywała ujemną korelację względem siebie, w tym: miedź z ołowiem i cynkiem oraz bardzo silną dodatnią ołowiu z cynkiem.
Źródło:
Rocznik Ochrona Środowiska; 2011, Tom 13; 83-99
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of Decreasing Supplementation to Transformation of Chemical Forms of Ni, Zn and Cu During CompoInfluence of Decreasing Supplementation to Transformation of Chemical Forms of Ni, Zn and Cu During Composting of Sewage Sludge
Autorzy:
Sidełko, Robert
Janowska, Beata
Leśniańska, Aleksandra
Kraszewska, Katarzyna
Grabowska, Karina
Powiązania:
https://bibliotekanauki.pl/articles/2069914.pdf
Data publikacji:
2021
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
sewage
composting
heavy metals
speciation
Opis:
This paper pertains to the influence of decreasing supplementation to transformation of chemical forms of Ni. Zn and Cu during composting of sewage sludge. A universally used supplementing material constituting a rich source of organic carbon is straw. Addition of straw to sewage sludge is aimed at increasing C/N proportion up to at least 15 due to the risk of formation of toxic forms of nitrogen, concentration of which in sewage sludge is exceptionally high. We have presented in this paper the results of speciation research of three elements applying Tessier’s sequential extraction. It’s been proven that decreasing of straw share in the composted mixture with sewage sludge down to the level of C/N value below the admissible value, has a beneficial effect on the allocation of tested heavy metals towards the forms that are permanently bound in compost matrix. A systematic increase of organic (IV) and residual (V) fractions share and decrease of mobile forms of heavy metals content in bioavailable fractions i.e. ion-exchange (I) and carbonate (II) has been ascertained.
Źródło:
Rocznik Ochrona Środowiska; 2021, 23; 580--593
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Vermicomposting as an Alternative Method of Sludge Treatment
Autorzy:
Boruszko, Dariusz
Powiązania:
https://bibliotekanauki.pl/articles/123533.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
vermicomposting
sewage sludge
earthworms
heavy metals
Opis:
The article presents the results of the research from several years of exploitation of the vermiculture plots located in the municipal wastewater treatment plant in Zambrów. It is the only facility in Poland where the vermicompost from municipal sewage sludge has been produced continuously since 2004 (for 16 years). The results of tests of ready-made vermicomposts conducted regularly twice a year (32 tests) were subjected to a simple statistical analysis. The vermicompost analyses of heavy metals, biogenic compounds, organic matter and selected macroelements were compared with the requirements for mineral-organic fertilizers. In terms of the heavy metals content, the highest total content was observed in the first year of plots exploitation, i.e. in 2004, when it amounted to over 1200 mg-1 kg DM. The lowest sum content of heavy metals in vermicomposts, amounting to 398 mg-1 kg DM, was recorded in 2017. The median total content of heavy metals from all observations was 821 mg-1 kg DM. During the whole research period, the content of nutrients in vermicomposts was high, for nitrogen it ranged from 9.8 g-1 kg DM to 31.1 g-1 kg DM (median 14.3 g-1 kg DM), whereas for phosphorus it ranged from 2.1 g-1 kg DM to 14.5 g-1 kg DM (median 5.5 g-1 kg DM). The content of organic matter in the whole several-year study period was high and ranged from 21.3% DM to 59.0% DM (median 33.1% DM). The conducted research confirmed that the use of California earthworm in the process of municipal sewage sludge vermicomposting results in its good mineralization and humification, and the final product (vermicompost) may be a valuable mineral-organic fertilizer.
Źródło:
Journal of Ecological Engineering; 2020, 21, 2; 22-28
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Impact of Sewage Treatment Plant on the Amount of Heavy Metals in Water of the Supraśl River Catchment Area
Autorzy:
Skorbiłowicz, M.
Skorbiłowicz, E.
Wójtowicz, P.
Ofman, P.
Zamojska, E.
Powiązania:
https://bibliotekanauki.pl/articles/123581.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
sewage treatment plant
heavy metals
water
Opis:
The main purpose of this study was to evaluate the effect of treated sewage flowing from sewage treatment plants located in the basin of the Supraśl river on the concentration and load of metals in river waters and its main tributaries. Three measuring- control points were chosen, on the river and its tributaries, located near Gródek, Sokółka and Dobrzyniewo. Selected points were located behind the discharge of treated wastewater from sewage treatment plants respectively – Gródek, Sokółka and Bialystok. The samples of treated sewage and water were collected in a period from May to November, once a month in 2014. Each individual sample was examined for the content of dissolved form of the following metals: Pb2+, Cu2+, Cd2+, Ni2+, Zn2+, Fe2+/3+. After taking into account water flow of the Biała, Sokołda and Supraśl in every month, metals loads expressed in mg·h-1., transported by the Supraśl and its tributaries waters were calculated. In the study monthly metals loads discharged into the Biała, Sokołda and Supraśl by sewage treatment plants in Białystok, Sokółka and Gródek were also calculated. The studies have shown the impact of metals load in treated wastewater on metals loads in waters of studied rivers based on the obtained correlation. Most of the searched relations between loafs of Pb2+ – r = 0,88; Cd2+ – r = 0,98; Fe2+/3+ – r = 0,45; Ni2+ – r = 0,55; Zn2+ – r = 0,86 were obtained in case of wastewater treatment plant in Gródek and Supraśl waters. In the study period we observed a diversity in concentration of Cd2+, Fe2+/3+, Ni2+ and Zn2+ in treated sewage and in river waters, which affected loads of this metals.
Źródło:
Journal of Ecological Engineering; 2016, 17, 1; 136-142
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
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
Artykuł
Tytuł:
Effects of different kinds of sewage sludge amendment on urban lawn grasses
Autorzy:
Wołejko, E.
Butarewicz, A.
Wydro, U.
Łoboda, T.
Powiązania:
https://bibliotekanauki.pl/articles/124382.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
sewage sludge
soil
heavy metals
effective microorganisms
Opis:
The paper presents the results of research on the use of sewage sludge from the municipal sewage treatment plant in Białystok for fertilization of urban lawns. To fertilize the ground two types of deposits were used: stabilized sludge after the dewatering process in the press and granular sludge after drying in the sludge dryer. Two doses of sludge were used – 5 and 10 kg/m2. Effective microorganisms (EM) were added to the test plots. Both doses of the applied sewage sludge contributed significantly to the growth of grass biomass. Aboveground biomass of the plants was significantly correlated with the concentration of Cd, Cu, Pb and Zn in the surface layer of the soil. The addition of EM to soil containing the dewatered sludge from the press reduced significantly the content of heavy metals in the soil, as opposed to the sludge in a form of granules with addition of EM, which contributed to the increase of their concentration in the soil.
Źródło:
Journal of Ecological Engineering; 2015, 16, 1; 164-170
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
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
Artykuł
Tytuł:
Assessment of the use of municipal and industrial wastes in agriculture
Autorzy:
Jasiewicz, C.
Antonkiewicz, J.
Baran, A.
Powiązania:
https://bibliotekanauki.pl/articles/777981.pdf
Data publikacji:
2007
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
metale ciężkie
kompost
obornik
osady ściekowe komunalne
osady ściekowe przemysłowe
heavy metals
farmyard manure compost
municipal sewage sludge
industrial sewage sludge
Opis:
Agricultural usability of urban and industrial wastes was investigated in 2004 - 2006 in a pot experiment carried out in the vegetation hall. In the first year of the experiment maize was the test plant, oat grass in the second and oat in the third. The experimental design comprised 11 treatments differing with fertilizer and the kind of the supplied fertilizer components. The experiment used: mineral salts, farmyard manure, compost, municipal sewage sludge and industrial sewage sludge in two fertilizer doses. Metal concentrations in the test plants were diminishing in the following direction: oat grass > maize > oat. The lowest concentrations of the analyzed heavy metals were assessed in the plants fertilized with farmyard manure and compost (Zn, Cu). Among the tested plants the highest quantities of Zn, Cu, Ni, Pb and Cd were removed with the yield of the oat grass, then maize and oat. The highest uptake of Zn, Cu. Ni and Pb by plants was registered on a double dose of industrial sludge and Cd on a single dose of municipal sludge.
Źródło:
Polish Journal of Chemical Technology; 2007, 9, 3; 15-19
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of thermal conversion of municipal sewage sludge on the content of Cu, Cd, Pb and Zn and phytotoxicity of biochars
Autorzy:
Gondek, K.
Mierzwa-Hersztek, M.
Powiązania:
https://bibliotekanauki.pl/articles/1190194.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
sewage sludge
biochar
heavy metals
thermal conversion
phytotoxicity
Opis:
Degradation of various compounds with the simultaneous formation of new or activation of initially unavailable chemically bound substances or elements can occur very often during the thermal conversion of organic materials. Thus, the aim of this research was to determine the effect of thermal conversion of municipal sewage sludge on the content of total and water-soluble forms of Cu, Cd, Pb, Zn, and on the phytotoxicity of the solid products generated in the process. The research material consisted of stabilized sewage sludge from municipal sewage treatment plants in Krakow (SS1), Krzeszowice (SS2) and Słomniki (SS3), Malopolska Province. The treatment plants are equipped with systems of mechanical-biological sewage treatment. The content of bioavailable forms was determined after a 24-hour extraction of a sample with redistilled water (material : water = 1: 5). Phytotoxicity of the extracts (material : water = 1 : 5) prepared from unprocessed sewage sludge and from biochars was examined against Lepidium sativum. Thermal conversion of municipal sewage sludge, with reduced air access, caused an increase in the content of total forms of copper, cadmium, lead and zinc in stable products of the process. The process of thermal conversion caused a reduction in the content of water-soluble forms of the elements, which points to their lower bioavailability. Phytotoxicity of sewage sludge was influenced more by its origin, and in consequence by the type of sewage treated, than by thermal conversion.
Źródło:
Journal of Elementology; 2017, 22, 2; 427-435
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of the Prospects of Application of Sewage Sludge from Lviv Wastewater Treatment Plants for the Purpose of Conducting the Biological Reclamation
Autorzy:
Vankovyсh, Dmytro
Bota, Oleh
Malovanyy, Myroslav
Odusha, Mykola
Tymchuk, Ivan
Sachnyk, Iryna
Shkvirko, Oksana
Garasymchuk, Vasyl
Powiązania:
https://bibliotekanauki.pl/articles/1839083.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
sewage sludge
monitoring
agroecological research
heavy metals
silt field
Opis:
The prospects of using the sewage sludge from Lviv wastewater treatment plants for biological reclamation was assessed. On the basis of the results of the monitoring of the qualitative and quantitative composition of sewage sludge accumulated in silt fields, the dependences of the distribution of sanitary-microbiological and ecological-chemical characteristics of the accumulated sludge were investigated. Agroecological laboratory studies on estimating the possibility of using sewage sludge in a mix with natural sorbents as a substrate for cultivation of plants was carried out.
Źródło:
Journal of Ecological Engineering; 2021, 22, 2; 134-143
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Influence of Anaerobic Digestion on Selected Heavy Metals Fractionation in Sewage Sludge
Autorzy:
Zdeb, Magdalena
Pawłowska, Małgorzata
Pacan, Justyna
Powiązania:
https://bibliotekanauki.pl/articles/124178.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
sewage sludge
anaerobic digestion
heavy metals
sequential chemical extraction
Opis:
Rising efficiency of wastewater purification systems causes an increase in the amounts of sewage sludge. Its land application is economically attractive because of low cost and high efficiency. Using sewage sludge in agriculture is one of the most preferred ways of its disposal. Only stabilized sludge and containing permissible concentrations of heavy metals can be used for this purpose. The heavy metals introduction into the environment may cause a potential problem for public health, especially when they percolate from soil to plants or groundwater. Therefore, the concentrations of heavy metals in sludge intended for agriculture are regulated. Determination of total content of heavy metals in digested sludge is not sufficient for the evaluation of a potential risk to the environment. The mobility and toxicity of heavy metals depend strongly on their specific chemical forms. The concentrations of particular heavy metal fractions are the most important parameters, which should be examined in order to estimate the influence of sludge on the environment. The aim of an article was to evaluate the influence of anaerobic digestion on the concentration and variability of chemical forms of selected heavy metals (Cr, Cu, Ni, Pb, Zn) in the sewage sludge coming from a municipal wastewater treatment plant in Pulawy (Poland). The content of particular forms of heavy metals in raw and digested sewage sludge was determined by means of the BCR (Community Bureau of Reference) method. The BCR method enables separating four fractions of heavy metals: exchangeable, reducible, oxidizable and residual. The results obtained after analyzing raw sludge showed that the majority of the analyzed heavy metals were predominantly associated with the oxidizable and residual fractions. Only in the case of Zn, the reducible form constituted a greater part. In the case of digested sludge, all studied heavy metals exhibited the most dominant oxidizable and residual fractions; however, the percentages of particular fractions were different than in raw sludge. It was noticed that all heavy metals concentrations were higher in digested sludge in comparison to sludge before anaerobic digestion. The content of heavy metals in the analyzed materials did not exceed the admissible Polish levels for the sludge intended for the agricultural use.
Źródło:
Journal of Ecological Engineering; 2020, 21, 3; 27-35
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of manure and organic fertilizers on the quantity and content yield of heavy metals in spring rape
Autorzy:
Krzywy, E.
Iżewska, A.
Powiązania:
https://bibliotekanauki.pl/articles/777929.pdf
Data publikacji:
2007
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
obornik
osad ściekowy
kompost z osadu ściekowego
rzepak jary
metale ciężkie
manure
sewage sludge
compost prepared from sewage sludge
spring rape
heavy metals
Opis:
The pot experiment was set up with the split plot method in three repetitions in 2006. The objects of the first factor were the doses of manure and organic fertilizers to the soil in conversion to the brought in nitrogen (85 and 170 kg Nźha^-1). the objects of the second factor were the types of fertilizers: manure, sewage sludge and the composts prepared from sewage sludge. The soil used in an experiment was supplied from The Agricultural Experimental Station in Lipnik. The soil was taken from the arable layer, it has the granulometric composition of the light loamy sand. The content of available phosphorus, potassium and magnesium formed on medium level, the pH(KCl) of the soil amounted to 5.13. The soil was characterized by 0° contamination of trace elements, which means that it contained the natural content of cadmium, copper, nickel, lead and zinc. Spring rape var. l.icosmos was the test plant. The aim of the research was the assessment of the influence of manure, sewage sludge and compost prepared from sewage sludge on yield quantity of seeds and straw and the content of cadmium, nickel, lead and zinc in spring rape. The conducted research shows that fertilizers brought into the soil (manure, sewage sludge and compost prepared from sewage sludge) as well as two levels of fertilizing had a significant influence on the yield of the seeds and straw of spring rape. Manure, sewage sludge and compost prepared from sewage sludge played less significant influence on the decreasing or excessive increasing of heavy metals concentration in the seeds of spring rape. The double dose of fertilizers caused higher accumulation of heavy metals in the test plant. The straw of spring rape should be treated as a source of organic matter and the main nutrients for the soil. The highest concentration of copper, manganese, nickel and zinc in the straw of spring rape was noticed after the application of sewage sludge and of cadmium and lead after the application of compost prepared from sewage sludge.
Źródło:
Polish Journal of Chemical Technology; 2007, 9, 3; 60-63
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An Environmental Friendly Solution for Stimulating Protective Properties of the Soil
Autorzy:
Chernysh, Yelizaveta
Powiązania:
https://bibliotekanauki.pl/articles/1391015.pdf
Data publikacji:
2019
Wydawca:
Wyższa Szkoła Bankowa w Poznaniu
Tematy:
protective properties
soil
heavy metals
biocomposite
phosphogypsum
sewage Sludge
Opis:
The development of soil management at the local and regional level is faced with challenges associated with an increasing level of soil contamination in urbanized systems. Thus, intensive soil use in Ukraine in recent years has resulted in a significant loss of humus, which is accompanied by negative changes in agrophysical, physico-chemical and biological properties of the soil. The aim of the study was to model a stimulating process of natural protective properties of the soil complex thanks to the influence of biocomposite based on sewage sludge and phosphogypsum under conditions of sulfate reduction. The chemical fractions were extracted from contaminated soil before and after the treatment. Surface images of the treated soil were obtained by means of X-ray diffractometry and microscopic analysis. The mineral composition of soil samples after processing by biocomposite was also mapped. Finally, the technological concept of a two-stage process of soil remediation was proposed involving the stage of aerobic soil treatment with biocomposite and the phyto-remediation stage for additional treatment.
Źródło:
Studia Periegetica; 2019, 25(1); 95-107
1897-9262
2658-1736
Pojawia się w:
Studia Periegetica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Concentration of Trace Elements in Sewage Sludge From Wastewater Treatment Plant in Gniewino
Autorzy:
Milik, J.
Pasela, R.
Lachowicz, M.
Chalamoński, M.
Powiązania:
https://bibliotekanauki.pl/articles/124352.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
trace elements
heavy metals
sewage sludge
wastewater treatment plant
Opis:
The sewage sludge originating from wastewater treatment plants (WWTP) serving rural areas is suggested for agricultural or natural usage. However, sewage sludge is beforehand subjected to the several pre-treatments, which involve stabilization, hygienisation and pre-composting. These methods mainly decrease the amount of organic substances and the presence of microorganisms, but hardly affect the concentrations of heavy metals. The advantages of using sludges as fertilizer for improving and sustaining soil fertility and crop production are numerous. The addition of sewage sludge to soils could affect the potential availability of heavy metals. Trace elements are distributed in the soil in various forms: solid phases, free ions in soil solution, soluble organic-mineral complexes, or adsorbed on colloidal particles. The most undesirable heavy metals in sewage sludge that are toxic for the living organisms include: cadmium, chromium, nickel, lead and mercury. In the study, the concentrations of trace elements (Pb, Cd, Cr, Hg, Ni, Zn, Al, As, Se, B, Ba, Br, Ca, Cu, Fe, Mn, Na, Ga, Li, Mo, Sr, Mg, K, Ru, Tl, V, U) were tested in the sewage sludge obtained from a WWTP serving rural areas (PE< 9 000). In each case, the tested sewage sludge was meeting the criteria of stabilization and was used for agriculture and land reclamation purpose. All the samples were collected in 2016 and subjected to microwave mineralization in a closed system in aqua regia. The total amounts of macro and microelements were determined with a spectrophotometer Coupled Plasma emission ICP-OES. It was found that the total concentrations of trace metals in all of sewage sludges are the same as the Polish regulation limit of pollutants for sludge to be used in agriculture. European legislation is less restrictive and permits higher contents of heavy metals in sludge used for agriculture than Asia. The trace elements (cadmium: 1.16 mg·kg-1/d.m. in thePolish sewage sludge, are much higher than those in the other countries. Copper and zinc were the most prevalent elements observed (111.28 mg·kg-1/d.m. and 282.94 mg·kg-1/d.m., respectively). The concentrations of copper in the Polish sewage sludge are much lower (49–130 mg·kg-1/d.m.) than european sewage sludge (522–562 mg·kg-1/d.m.). The two of the tested heavy metals (beryllium, bismuth) were under the detection limit, while gallium, molybdenum, thallium, vanadium and silver were detected in the concentrations lower than 0.005 mg·kg-1/d.m. According to the obtained results, in all the tested samples, the total amount of trace elements, did not exceed the limit values in sewage sludge for their use in agriculture and land reclamation.
Źródło:
Journal of Ecological Engineering; 2017, 18, 5; 118-124
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 113

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