Skocz do pozycji: 1.

Tytuł:

Various ionic substitutions in hydroxyapatites - physicochemical studies

Autorzy:

Kolmas, J.
Laskus, A.
Szurkowska, K.
Pajor, K.
Pajchel, Ł.

Powiązania:

https://bibliotekanauki.pl/articles/285828.pdf

Data publikacji:

2018

Wydawca:

Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów

Tematy:

hydroxyapatite
ions
physicochemical analysis

Źródło:

Engineering of Biomaterials; 2018, 21, 148; 45
1429-7248

Pojawia się w:

Engineering of Biomaterials

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 2.

Tytuł:

The effect of plasma treatment on surface physicochemical properties of chitosan/glucan/HA biomaterial

Autorzy:

Przekora, A.
Pawłat, J.
Terebun, P.
Kwiatkowski, M.
Ginalska, G.

Powiązania:

https://bibliotekanauki.pl/articles/283980.pdf

Data publikacji:

2018

Wydawca:

Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów

Tematy:

plasma
biomaterials
physicochemical properties

Źródło:

Engineering of Biomaterials; 2018, 21, 148; 9
1429-7248

Pojawia się w:

Engineering of Biomaterials

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 3.

Tytuł:

Physico-chemical properties of Rhododendron honey produced in Turkey
Właściwości fizykochemiczne miodu rododendronowego produkowanego w Turcji

Autorzy:

Rasgele, P.G.
Kekecoglu, M.

Powiązania:

https://bibliotekanauki.pl/articles/71672.pdf

Data publikacji:

2013

Wydawca:

Instytut Włókien Naturalnych i Roślin Zielarskich

Tematy:

physicochemical property
Rhododendron
honey
physicochemical analysis
chestnut
flower
Turkey [geogr.]

Opis:

Rhododendron honey is a monofloral honey and it is collected from the flowers of Rhododendron species widely spreading over many countries, mainly in America, Turkey, Indonesia, Australia. It is belived that Rhododendron honey treats several disorders and is used traditionally as an alternative medicine. The determination of the chemical characteristics of the Rhododendron honey is essential for public health. In this research, the physicochemical characteristics of Rhododendron, chestnut and flower honey samples collected from beekeepers in Turkey were determined and compared. Physico-chemical parameters such as moisture, acidity, sucrose, invert sugar, fructose/glucose, conductivity, diastase and hydroxymethylfurfural were analysed in each honey sample. According to the results obtained, no differences were found in physico-chemical properties of Rhododendron, honey samples, except from moisture and acidity compared with those of chestnut and flower honeys. In order to differentiate Rhododendron honeys, new methods should be developed. This honey should be reintroduced to medicine and used in pharmaceutical industry.
Miód rododendronowy jest miodem jednokwiatowym zbieranym z kwiatów roślin z rodzaju Rhododendron. Jest rozpowszechniony w wielu krajach Ameryki, a także w Turcji, Indonezji i Australii. Uważa się, że miód rododendronowy leczy niektóre zaburzenia i jest używany w medycynie alternatywnej, zatem określenie składu chemicznego miodu rododendronowego jest ważne dla zdrowia społeczeństwa. W pracy określono i porównano cechy fizykochemiczne próbek miodu rododendronowego, kasztanowego i kwiatowego otrzymanego z pasiek w Turcji. W każdej próbce oznaczano cechy fizykochemiczne takie jak wilgotność, kwasowość, poziom sacharozy i cukru inwertowanego, stosunek fruktozy/glukozy, przewodność elektryczna, diastaza i hydroksymetylofurfural. Zgodnie z otrzymanymi wynikami, nie znaleziono różnic w cechach fizykochemicznych próbek miodu z rododendronu, za wyjątkiem wilgotności i kwasowości w porównaniu z miodem z kasztanowca i kwiatowym. W celu wychwycenia cech charakteryzujących tylko miód rododendronowy potrzeba zastosowania nowych metod. Miód ten powinien zostać ponownie wprowadzony do użycia w medycynie i przemyśle farmaceutycznym.

Źródło:

Herba Polonica; 2013, 59, 3
0018-0599

Pojawia się w:

Herba Polonica

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 4.

Tytuł:

Physicochemical characteristics of land waters in the Bellsund region (Spitsbergen)

Autorzy:

Chmiel, S.
Bartoszewski, S.
Gluza, A.
Siwek, K.
Zagórski, P.

Powiązania:

https://bibliotekanauki.pl/articles/294579.pdf

Data publikacji:

2007

Wydawca:

Stowarzyszenie Geomorfologów Polskich

Tematy:

physicochemical characteristics
Spitsbergen
land waters

Źródło:

Landform Analysis; 2007, 5; 13-15
1429-799X

Pojawia się w:

Landform Analysis

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 5.

Tytuł:

Collagen - structure, properties and application

Autorzy:

Owczarzy, Aleksandra
Kurasiński, Robert
Kulig, Karolina
Rogóż, Wojciech
Szkudlarek, Agnieszka
Maciążek-Jurczyk, Małgorzata

Powiązania:

https://bibliotekanauki.pl/articles/1844977.pdf

Data publikacji:

2020

Wydawca:

Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów

Tematy:

collagen
collagen structure
physicochemical properties
biological properties
DDS
physicochemical techniques
atelocollagen

Opis:

Collagen is the dominant component of the extracellular matrix of mammals. It occurs almost in all animal tissues. Collagen is a highly heterogeneous protein. The collagen protein family is characterized by great diversity in terms of structure, occurrence, and function. Up till now, 29 types of collagens proteins have been classified. The representation of individual types of collagen has certain common features. The most important property is the above-average mechanical strength that results directly from the spatial structure. Collagen is a building material for most tissues and organs. It also plays an important role in the process of cell growth and differentiation, which results from the specific structure of collagen fibers as well as their ability to adhere. The development of research techniques allowed to study in detail the molecular structure and properties of collagen. Therefore, collagen has become a subject of interest in many branches of science. Synthetic recombinant collagen fibers were developed as the basis of collagen biomaterials for medical applications, including implantology or gynecology. The specific structure of collagen also makes it applicable as a protein carrier in drug delivery systems (DDS), particularly in the treatment of cancer and genetic diseases. The use of tissue regenerative abilities and an interdisciplinary look at the properties of collagen and collagen-based biomaterials may constitute the future of medical development.

Źródło:

Engineering of Biomaterials; 2020, 23, 156; 17-23
1429-7248

Pojawia się w:

Engineering of Biomaterials

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 6.

Tytuł:

Study of some physicochemical and rheological properties of irradiated honey

Autorzy:

Bera, A
Almeida-Muradian, L. G.
Sabato, S. F.

Powiązania:

https://bibliotekanauki.pl/articles/147025.pdf

Data publikacji:

2008

Wydawca:

Instytut Chemii i Techniki Jądrowej

Tematy:

gamma radiation
honey
rheology
physicochemical properties

Opis:

Honey is a sweet substance produced by bees, well appreciated in many places and its consumption has been increased either as raw material or as a food ingredient. Its use as food by the consumer, or even for exportation, implies safety inherent in its quality and processing control. Gamma radiation can be applied in food or ingredients for many objectives like pathogens microorganisms’ reduction, disinfestations, and sterilization. The aim of this work was to verify some physicochemical modifications, as well as rheological evaluation of honey submitted to irradiation at 10 kGy. The physicochemical parameters analyzed were: moisture, HMF, free acidity, pH, sugars and ash. The rheological behavior was measured at different temperatures. The results indicated that few changes occurred; the rheological behavior was not impaired and did not present any significant physicochemical alteration.

Źródło:

Nukleonika; 2008, 53, suppl. 2; 85-87
0029-5922
1508-5791

Pojawia się w:

Nukleonika

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 7.

Tytuł:

Physicochemical Properties of Soils derived from Sandstone Parent Materials under Selected Land use types at Agoi-Ibami in Central Cross River State, Nigeria

Autorzy:

Eyong, M. O.
Akpa, E. A.

Powiązania:

https://bibliotekanauki.pl/articles/1076791.pdf

Data publikacji:

2019

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

Physicochemical properties
Sandstone
land use types

Opis:

Three profiles were sited on the major landscape elements of crest, middle slope and lower slope on three land uses; Forest (FS), Rubber (RS) and arable cropping (AS) at Agoi-Ibami in Central Cross River State, Nigeria. For study purposes, soil samples were collected from the morphogenetic horizons for the analysis of physical and chemical properties. Results showed that the surface horizon textures were mostly sandy loams with little sandy clay loam, while subsurface textures were mostly sandy clay loams with few silt clay loams and clays. The bulk densities were below the ranges of 1.46 to 1.63 g cm-3 for silts and clays and 1.75 g cm-3 for sands. This imposes stresses such as mechanical resistance to root penetration, decrease in cultivation and organic matter. The surface and subsurface pH values vary from 4.9–4.5 in FS, 4.9-4.6 in RS and 4.9 in AS, indicating that the soils are very strongly acidic. The Organic carbon contents was low with mean values of 4.33 and 0.6 % in surface and subsurface for FS, 2.10 and 0.50 % for surface and subsurface for RS, while surface and subsurface values proved to be 0.57 and 0.31 % for AS. The nitrogen contents was also low, mean values of 0.16 and 0.06 % for surface and subsurface for FS, 0.23 and 0.08 % for surface and subsurface for RS, and 0.19 and 0.10 % for surface and subsurface for AS. The content and available phosphorus are equally low, except for AS, with surface mean values ranging from 11.52 mg kg-1 to 13.87 mg kg-1. The exchangeable cations, Ca, Mg, K, and Na were very low, while exchangeable H+ and Al3+ were high. Base saturation was also low in FS and AS (< 50%) in surface soils, but higher in AS in the surface and in RS in the subsurface soils. The mean values of organic matter were 4.33 and 0.16 %. The land use should, therefore, be adjusted by application of recommended inorganic fertilizers and organic matter so as to support growth of crops such as maize, yams, cassava etc.

Źródło:

World News of Natural Sciences; 2019, 23; 1-12
2543-5426

Pojawia się w:

World News of Natural Sciences

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 8.

Tytuł:

Suitability Assessment of Groundwater for Irrigation Purpose in Veppanthattai Block, Perambalur District, Tamil Nadu

Autorzy:

Ibraheem, A. Mohamed
Mazhar Nazeeb Khan, S. M.

Powiązania:

https://bibliotekanauki.pl/articles/1178314.pdf

Data publikacji:

2017

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

Groundwater
Irrigation
Physicochemical parameters
Season
Veppanthattai

Opis:

Groundwater is a major water source for agricultural irrigation in Veppanthattai block. Forty-five groundwater samples were collected at various standard locations from the study area in the year of 2015 at pre-monsoon, post monsoon and monsoon seasons periodically. The concentrations of physicochemical parameters like pH, Electrical Conductivity (EC), total dissolved solid (TDS), Total Hardness (TH), Ca2+, Mg2+, Na+, K+, HCO3ˉ, SO42-, Clˉ, NO3ˉ and PO43- were analyzed. The results of the concentrations were interpreted and compared with different irrigation standards namely EC, Percent Sodium (%Na), Sodium Adsorption Ratio (SAR), Residual Sodium Carbonate (RSC), Permeability Index (PI), Kelly’s Ratio (KR), Ion Exchange as chloro-alkaline indices (CAI-I and CAI-II), Chloride classification and Magnesium ratio.

Źródło:

World Scientific News; 2017, 81, 2; 81-93
2392-2192

Pojawia się w:

World Scientific News

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 9.

Tytuł:

Hydroxyapatite as a support in protease immobilization process

Autorzy:

Zdarta, J.
Budzinska, K.
Kolodziejczak-Radzimska, A.
Klapiszewski, Ł.
Siwinska-Stefanska, K.
Bartczak, P.
Piasecki, A.
Maciejewski, H.
Jesionowski, T.

Powiązania:

https://bibliotekanauki.pl/articles/110452.pdf

Data publikacji:

2015

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

hydroxyapatite
enzyme immobilization
protease
physicochemical characteristic

Opis:

Hydroxyapatite is used as a matrix for immobilization of protease from Aspergillus oryzae by a process of adsorption. The matrix obtained has the surface area of 26 m2/g and particles in the shape of flakes of diameters no greater than 650 nm. The efficiency of the proposed method was confirmed by the Fourier transform infrared spectroscopy, elemental analysis and by analysis of parameters of the pore structure of matrix and products after immobilization. On the basis of the Bradford method it was found that the greatest amount of enzyme (132 mg/g) was immobilized from a solution of initial enzyme concentration of 7 mg/cm3 after 24 h of the process.

Źródło:

Physicochemical Problems of Mineral Processing; 2015, 51, 2; 633-646
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 10.

Tytuł:

Leachate Monitoring and an Assessment of Groundwater Pollution from the Tangier Landfill

Autorzy:

Elmaghnougi, Ikram
Tribak, Abdelghani Afailal
Maatouk, Mustapha

Powiązania:

https://bibliotekanauki.pl/articles/2105516.pdf

Data publikacji:

2022

Wydawca:

Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH

Tematy:

leachate
pollution
groundwater
physicochemical
heavy metals

Opis:

Leachate from public landfill in the city of Tangier, which is neither collected nor treated, could constitute a probable source of pollution of the groundwater table and of those of the Mlalah and Khandak Bou Hajjar wadis in the east, and the Mghogha and Ghir Boudra wadis to the south. This work aims to analyze the level of contamination at Tangier’s municipal waste disposal. The leachate samples were collected and analyzed during the period from 2016 to 2019 and the physicochemical parameters (humidity, pH, organic matter, etc.) were determined on these samples as well as the contents of five heavy metals (lead, cadmium, iron, chrome and zinc). Analysis of the well water shows the presence of polluting elements in the leachate water and a high concentration of metals (especially iron) that exceeds standards. This makes the effluent extremely toxic and thus presents a permanent threat to the health of the local population and the surrounding environment.

Źródło:

Geomatics and Environmental Engineering; 2022, 16, 3; 111--130
1898-1135

Pojawia się w:

Geomatics and Environmental Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 11.

Tytuł:

Evaluation of the differentiation of structural and physicochemical properties of orthodontic wires of AlSl 304 stainless steel

Autorzy:

Grygier, D.
Hoppe, V.
Zięty, A.
Rutkowska-Gorczyca, M.

Powiązania:

https://bibliotekanauki.pl/articles/284388.pdf

Data publikacji:

2018

Wydawca:

Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów

Tematy:

wires
orthodontic arches
physicochemical properties

Źródło:

Engineering of Biomaterials; 2018, 21, 148; 14
1429-7248

Pojawia się w:

Engineering of Biomaterials

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 12.

Tytuł:

Quality assessment of vegetable oil industry effluents in Port Harcourt, Rivers State, Nigeria

Autorzy:

Verla, A. W.
Verla, E. N.
Adowei, P.
Briggs, A.
Horsfall Jnr, M.

Powiązania:

https://bibliotekanauki.pl/articles/412234.pdf

Data publikacji:

2014

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

physicochemical
wastewater
biodegradability
pollutants
indices

Opis:

Five composite samples of waste water were collected from waste water tank of a vegetable oil refining company and were analyzed for physiochemical characteristics, heavy metal and organic pollutants. Physicochemical determinations were done according to standard methods; heavy metals were determined by use of Atomic Absorption Spectrophotometer method while organic pollutants were determined by Gas chromatography system HP 6890 series. Sulphate was determined by vanadomolybdophosphoric acid method while phosphates and chlorides were determined by argentometric method. Results reveal that effluent pH (4.67 ±0.015), salinity (125 ±4.50 %) and BOD5 (17.83 ±1.70 mg/l) were bellow WHO standard whereas TDS (127.7 ±5.77 mg/l), TSS (563.6 ±3.15 mg/l) and COD (3959 ±3.8 mg/l) were above WHO standards. Heavy metal pollution index (0.31) showed no multi-element contamination arising from effluent. The degree of contamination (1.84) showed that the effluent has a moderate polluting potential. Lower molecular weight PAHs showed a significant difference even though most of the organic compounds in vegetable oil refinery wastewater showed good biodegradability that varied weekly. Therefore there is either no treatment or an in effective treatment of the effluents. This could result to serious environmental problems in the near future.

Źródło:

International Letters of Chemistry, Physics and Astronomy; 2014, 14, 2; 179-189
2299-3843

Pojawia się w:

International Letters of Chemistry, Physics and Astronomy

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 13.

Tytuł:

Contribution to the Treatment of Urban Wastewater in the City of Fez by Coagulation and Flocculation Using a Biodegradable Reagent

Autorzy:

Elmansouri, Ibtissame
Lahkimi, Amal
Benaabou, Mohamed
Chaouch, Mehdi
Eloutassi, Noureddine
Bekkari, Hicham

Powiązania:

https://bibliotekanauki.pl/articles/2027813.pdf

Data publikacji:

2022

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

treatment
physicochemical
microbiological
urban water

Opis:

This study includes two parts; the first one, concerns evaluation of the physicochemical and microbiological quality of the urban wastewater of the city of Fez, through a space-time dynamics. In turn, the second part deals with the contribution to the treatment of these effluents, by a new biodegradable reagent in the process of physicochemical treatment (coagulation flocculation). For this purpose, the sampling of urban wastewater was carried out 4 months (September, December, February and June 2019), at a rate of two samplings per period on 4 specific sites along the river Fez, the degree of contamination of which differs from one site to another, according to space and time. The diagnostic of these stations showed a high level of pollution that is difficult to biodegrade. Indeed, this pollution can cause negative effects not only on the environment but also on human’s health. In order to take long-term action against the low quality of water and to replace certain inorganic coagulants, alternative processes for water treatment using cactus powder were set up. The characterization of results showed that the urban effluent has a high load in terms of electrical conductivity (EC), dissolved oxygen, chemical oxygen demand (COD), as well as concentrations of faecal coliforms, streptococci and staphylococci. In addition, the purifying power revealed that the removal rate of COD reaches maximum values of 38% and 58% forlimeand the mixture of lime with cactus powder, respectively.

Źródło:

Journal of Ecological Engineering; 2022, 23, 2; 77-85
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 14.

Tytuł:

Influence of chitosan nonwoven fabric modification on its physicochemical and biological properties

Autorzy:

Dzierzkowska, Ewa
Ścisłowska-Czarnecka, Anna
Kolesińska, Beata
Boguń, Maciej
Stodolak-Zych, Ewa

Powiązania:

https://bibliotekanauki.pl/articles/284448.pdf

Data publikacji:

2019

Wydawca:

Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów

Tematy:

nonwoven fabric
modification
physicochemical properties
biological properties

Źródło:

Engineering of Biomaterials; 2019, 22, no.153; 108
1429-7248

Pojawia się w:

Engineering of Biomaterials

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 15.

Tytuł:

Coupling mineralogy with physicochemical parameters in view copper flotation efficiency improvement

Autorzy:

Naumov, Dejan
Stamenov, Lachezar
Gaydardzhiev, Stoyan
Bouzahzah, Hassan

Powiązania:

https://bibliotekanauki.pl/articles/109556.pdf

Data publikacji:

2019

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

copper ore
flotation
quantitative mineralogy
physicochemical factors

Opis:

The Chelopech epithermal arsenic bearing high-sulphidation, copper-gold deposit located in Bulgaria is often considered as the richest European gold deposit. Selected physicochemical parameters have been measured at key flotation streams inside the processing plant. Sampling campaign has followed with samples being submitted to chemical and mineral liberation analyses. A quantitative analysis has enabled to link copper flotation response to the type of copper bearing minerals and physiochemical parameters such as redox potential (Eh), dissolved oxygen (DO), EDTA extractable Cu and Fe. Data from the mineral liberation analysis (MLA) have highlighted an important process- relevant information explaining the variable floatability in different particle size ranges. A low chalcopyrite recovery can be linked to the non-sufficient amount of dissolved oxygen inside the copper selective flotation. Given the finely-disseminated copper bearing minerals, copper losses due to particle locking could be suggested as well.

Źródło:

Physicochemical Problems of Mineral Processing; 2019, 55, 3; 701-710
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 16.

Tytuł:

Synthesis and characterization of polymer biocomposites with lignin

Autorzy:

Goliszek, Marta
Podkościelna, Beata

Powiązania:

https://bibliotekanauki.pl/articles/110212.pdf

Data publikacji:

2019

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

lignin
biocomposites
physicochemical properties
eco-filler
photopolymerization

Opis:

A new method of synthesis of polymer biocomposites with lignin using the photopolymerization method has been proposed. Bisphenol A glycerolate (1 glycerol/phenol) diacrylate (BAGDA) was used as a main monomer and 2-ethylhexyl acrylate (EHA) as a reactive diluent. Lignin (L) was applied as an eco-filler. The influence of the increasing lignin content (0; 2.5; 5; 10; 20% w/w) on the properties of the obtained biocomposites was investigated. The chemical structure of biomaterials was investigated by the attenuated total reflectance Fourier transform infrared spectroscopy (ATR/FT-IR) method while the thermal properties were studied by the differential scanning calorimetry (DSC) and thermogravimetric analysis (TG/DTG). Their hardness was measured by the Shore D method. Incorporation of the biopolymer into the structure of polymer composites could be a promising alternative to synthetic materials and would contribute to better lignin utilization. The results of the study are of practical importance in prospective applications of biocomposites with lignin.

Źródło:

Physicochemical Problems of Mineral Processing; 2019, 55, 6; 1375-1381
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 17.

Tytuł:

Content of the Label Paper and the Variation of Physico-Chemical Parameters in Bottled Water in Kosovo

Autorzy:

Çadraku, Hazir

Powiązania:

https://bibliotekanauki.pl/articles/2202226.pdf

Data publikacji:

2022

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

water quality
bottled water
physicochemical parameter
Kosovo

Opis:

Water is a vital resource for the existence of mankind and all ecosystems on Earth. Before using it, it must be ensured that water is of good quality, within the hygienic-sanitary norms for human consumption. In recent decades, the supply of drinking water has been supplemented with the water bottled in glass and plastic bottles, which is found everywhere in the market of the Republic of Kosovo. This paper deals with the content of the label paper and the variation of physico-chemical parameters of bottled water which is extracted, analyzed, processed, filled, packaged and distributed on the market of the Republic of Kosovo and beyond as a product for consumption. i.e. In this paper 20 brands of groundwater (types of water) produced and packaged in the territory of Kosovo.

Źródło:

Journal of Ecological Engineering; 2022, 23, 11; 122--131
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 18.

Tytuł:

Concentration of heavy metals in the soil and translocation with phytoremediation potential by plant species in military shooting range

Autorzy:

Magaji, Y.
Ajibade, G. A.
Yilwa, V. M. Y.
Appah, J.
Haroun, A. A.
Alhaji, I.
Namadi, M. M.
Sodimu, A. I.

Powiązania:

https://bibliotekanauki.pl/articles/1157708.pdf

Data publikacji:

2018

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

Heavy metals
Physicochemical parameters
Phytoremediation
Translocation

Opis:

Concentration of seven (7) metals (Pb, Cu, Zn, Mu, Ni, Cr, and Cd) in the samples of soil and some plant species collected from Kachia military shooting range were determined. The mineral ions were assayed using the acid digestion method and atomic absorption spectrophotometry (AAS). Physicochemical parameters (pH, EC, Bulk density, water holding capacity and Total Nitrogen) of the soil samples were also determined. Of the 7 metals determined in the soils samples, the concentration of Pb (14.85 ± 6.78 mg/kg-1) was the highest compared to the concentrations of other metals. Physicochemical parameters were within the range that allows effective phytoremediation. Cu showed the lowest concentration (0.55 ± 1.68 mg/kg-1). Ni was below the detectable limit in most of the samples. Similarly, concentrations of Pb (12.30 mg/kg-1) in the shoot of Albizia zygia among other metals were higher than those of the other metals in the plant tissues. Concentration of Cd (0.07 mg/kg-1) in the root of Eragotis tremula was the lowest. Generally, metal ion concentration in the soil and plant samples of the shooting range (polluted site) significantly) differed from those of the non-polluted site (P<0.05). Combretum hispidium among the plant species had the highest translocation factor (TF = 2.91). Although the TF was higher in the plant of the polluted site TF >1), reasonable amount of them were retained within the underground tissues (roots).

Źródło:

World Scientific News; 2018, 92, 2; 260-271
2392-2192

Pojawia się w:

World Scientific News

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 19.

Tytuł:

Effect of physicochemical properties of triticale starch on selected indices of bread quality
Wpływ fizykochemicznych właściwości skrobi z pszenżyta na wybrane wskaźniki jakości chleba

Autorzy:

Gambus, H.
Lewczuk, J.
Nowotna, A.
Fortuna, T.

Powiązania:

https://bibliotekanauki.pl/articles/1399134.pdf

Data publikacji:

1988

Wydawca:

Instytut Rozrodu Zwierząt i Badań Żywności Polskiej Akademii Nauk w Olsztynie

Tematy:

triticale starch
physicochemical characteristics
bread volume

Opis:

Starches were isolated from 28 Polish triticale lines by the laboratory method, and their fundamental physicochemical properties determined. Next, pup loaves were baced in the starch - gluten system (by the direct method) and the volume of the loaves was measured. The results were subjected to statistical analysis which showed a positive correlation between bread volume and viscosity of starch pastes.
Skrobie wyizolowane metodą laboratoryjną z 28 polskich rodów pszenżyta przebadano pod względem ich właściwości fizykochemicznych. Używając tego samego glutenu i różnych próbek skrobi z pszenżyta wypiekano chlebki metodą bezpośrednią w systemie skrobia-gluten. Oznaczano: upiek, stratę wypiekową całkowitą, wydajność oraz barwę skórki i elastyczność miękiszu chlebków. Fizykochemiczne właściwości skrobi oraz objętość otrzymanych chlebków poddano analizie statystycznej. Wykazała ona korelacje pomiędzy objętością otrzymanych chlebków a: lepkością kleików w temp. 50°C (r = + 0,45), wielkością ziarenek skrobiowych (% ziarenek o wielkości 21,9-30,9 um: r = + 0,44 ), temperatura kleikowania (r = - 0,66) oraz zawartością białka (r = - 0,54 ). Wydaje się więc, że te właściwości fizykochemiczne skrobi w sposób istotny wpływały na objętość chlebków. Nie wykazano istotnej zależności pomiędzy objętością chlebków a: stopniem wiązania wody i rozpuszczalności skrobi pszenżytnej w wodzie, zawartością amylozy oraz zawartością tłuszczu i fosforu w skrobi z pszenżyta.

Źródło:

Acta Alimentaria Polonica; 1988, 14(38), 3-4; 131-138
0137-1495

Pojawia się w:

Acta Alimentaria Polonica

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 20.

Tytuł:

Water Quality Index and Human Health Risk Assessment of Class B Swimming Pools in Owerri Municipal, Nigeria

Autorzy:

Ngozi, Verla Evelyn
Nwachukwu, Joseph Ikechukwu
Lydia, Ugwoke Chidera
Wirnkor, Verla Andrew

Powiązania:

https://bibliotekanauki.pl/articles/1839872.pdf

Data publikacji:

2021

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

Contaminants
Model
Index
Permissible limit
Physicochemical

Opis:

Assessments of public swimming pools in Owerri municipal, Imo state, Nigeria was carried out for the purpose of determining the suitability of water for swimming in this fun loving town of Nigeria. Five public pools were selected by purposive sampling from more than 30 pools in the area. Water samples were collected in the morning and evening from pools and analyzed in triplicates for physicochemical properties and heavy metals content by using standard method for water analysis and Atomic Absorption Spectrometer. Data obtained were compared with WHO and EPA standards for drinking and recreational water and modeled on the Water Quality Index (WQI). Results revealed that pH ranged from 7.10±0.02 to 8.1±1.27 pH units, EC ranged from 40 ±3.11 µS/cm to 80±3.44 µS/cm, COD value ranged from 0.08±0.07 to 1.02 ±0.91, BOD value ranged from 0.03±0.02 to 3.14±0.13, dissolved oxygen (DO) ranged 3.9±1.77 mg/kg to 9.3±2.41 mg/kg, suspended solids ranged from 6.43±8.21 mg/l to 42.44±7.00 mg/l, total dissolved solids (TDS) ranged from 22±2.90 mg/l to 97.98±8.79 mg/l. The major cations were below the standard. Nitrate ranged from 0.91±0.02 mg/l to 0.96 mg/l, sulphate ranged from 2.34±0.10 mg/l to 2.81±0.11mg/l, phosphate ranged from 0.34±0.02 mg/l to 0.65±0.02 mg/l while chloride ranged from 12.75±1.89 mg/l to 31.89±2.04 mg/l with mean 24.23 mg/l. Except for chloride, all other studied anions were lower than the permissible limit set by WHO/EPA. Concentration of lead (Pb), iron (Fe), Copper (Cu) were also below the permissible limit. The individual WQ indexes showed A (3.32), B (5.44), C (10.08), D (12.40) and E (9.77) with average WQI of 8.20 suggesting that the swimming pools are of “Excellent water quality”, thereby suggesting safe swimming pools for recreational activities in the study area. Values of exposure pathways for all metals at all swimming pools were less than one. Therefore there were no risks of heavy metals from the swimming pools.

Źródło:

World News of Natural Sciences; 2021, 38; 60-82
2543-5426

Pojawia się w:

World News of Natural Sciences

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 21.

Tytuł:

Characteristics of selected physicochemical indices of upland carbonate stream water with coarse-grained substrate

Autorzy:

Policht-Latawiec, A.
Kanownik, W
Grubka, K

Powiązania:

https://bibliotekanauki.pl/articles/124481.pdf

Data publikacji:

2014

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

Sztoła river
water quality
physicochemical indices

Opis:

Hydrochemical research was conducted in 2011 at three measurement-control points on the Sztoła river, a left-bank tributary to the Biała Przemsza river. Water temperature and pH, dissolved oxygen concentration, oxygen saturation and electrolytic conductivity were measured directly in the field. 11 selected physicochemical indices of the Sztoła surface water were assessed in the laboratory. The analysis of the research results revealed that the water of the Sztoła along the analyzed river reach was first class quality. The analysis of water usable qualities proved that at point 1 it can be used for water supply after high-performance physical and chemical treatment, whereas at other points after a typical physical and chemical treatment, due to high manganese concentrations. Water does not meet the requirements of natural habitat for the Salmonoid fish only at point 1 because of exceeded standard values for nitrites. The Cyprinid fish have the proper habitat conditions along the examined river reach. Among 15 analysed physiochemical indices of water, 7 were statistically higher in the lower course, but they did not affect worsening of the Sztoła river water quality. Greater water pollution in the central and lower river reach is caused by the anthropogenic pressure connected mainly with the operations of extraction industry in the catchment.

Źródło:

Journal of Ecological Engineering; 2014, 15, 4; 23-28
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 22.

Tytuł:

Quality traits and physicochemical characteristics of pork from crossbreds depending on age
Cechy jakościowe tusz i właściwości fizykochemiczne mięsa mieszańców świń w zależności od wieku

Autorzy:

Rudy, M.
Zin, J.

Powiązania:

https://bibliotekanauki.pl/articles/2197636.pdf

Data publikacji:

2007

Wydawca:

Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie

Tematy:

pig
crossbred pig
pork quality
pig meat
physicochemical characteristics
animal age
carcass
fattener
chemical composition
physicochemical property
sensory property

Źródło:

Annales Universitatis Mariae Curie-Skłodowska. Sectio EE: Zootechnica; 2007, 25, 1; 101-107
0239-4243
2083-7399

Pojawia się w:

Annales Universitatis Mariae Curie-Skłodowska. Sectio EE: Zootechnica

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 23.

Tytuł:

Cyanobacterial species Biodiversity in Mahasamund district of Chhattisgarh region, India

Autorzy:

Sharma, Sangita Devi
Sahu, Kaushilya
Jain, Pankaj Kumar

Powiązania:

https://bibliotekanauki.pl/articles/1118876.pdf

Data publikacji:

2017

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

Cyanobacterial screening
Rice fields
physicochemical properties of soil

Opis:

Rice is the principal crop of the Chhattisgarh State. It covers 66% of all cultivable land and is mostly grown within the kharif cropping season. To increase sustained productivity without decreasing soil quality, algal bio fertilizers are widely used in the State. Hence, the culture of cyanobacterial bio fertilizers has been started on a regional basis. This includes survey, isolation and screening of stress-tolerant cyanobacteria. Thus, this study concerns the characterization of physical and chemical properties of soil collected from Mahasamund districts of Chhattisgarh state with respect to the biodiversity of cyanobacteria.

Źródło:

World News of Natural Sciences; 2017, 7; 1-15
2543-5426

Pojawia się w:

World News of Natural Sciences

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 24.

Tytuł:

Recent studies of irradiated mangoes in Brazil : a trend towards commercial approach

Autorzy:

Sabato, S. F.
Silva, J. M.
Cruz, J. N.
Broisler, P. O.
Rela, P. R.
Salmieri, S.
Lacroix, M.

Powiązania:

https://bibliotekanauki.pl/articles/148822.pdf

Data publikacji:

2008

Wydawca:

Instytut Chemii i Techniki Jądrowej

Tematy:

gamma radiation
mangoes
physicochemical properties
sensory evaluation

Opis:

Mango is an important commodity to our country as Brazil is a great producer and exporter of tropical fruits. Nowadays, Mexico and India are the main exporters of mango in the world and Brazil occupies the third position in this ranking. As these countries have adopted gamma radiation as a phytosanitary treatment and signed a bilateral agreement with the United States for exporting mango to this country, Brazil has to be up-to-dated with this trend. The Institute of Nuclear and Energy Researches together with field producers in the northeastern region and partners like the International Atomic Energy Agency, the Canadian Irradiation Center and Empresa Brasileira de Agropecuária joined to demonstrate this technology, its application and its commercial feasibility. The whole project was structured in two parts that involved around 1300 mangoes. The first step consisted mainly in studying the quality of irradiated mangoes within our territory, using a multipurpose semi-commercial cobalt facility, and comparing two harvesting points of the fruits. The second one was an international consignment of irradiated fruits from Brazil to Canada, where the control sample consisted of fruits treated with a hot water dip. The financial part of the feasibility study covers the scope of the investment, including the net working capital and production costs. In a summarized way to express, the results from physicochemical analysis and sensory evaluation were favorable, indicating that gamma radiation is a potential quarantine treatment.

Źródło:

Nukleonika; 2008, 53, suppl. 2; 77-79
0029-5922
1508-5791

Pojawia się w:

Nukleonika

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 25.

Tytuł:

Advanced biocomposites based on silica and lignin precursors

Autorzy:

Klapiszewski, Ł.
Nowacka, M.
Szwarc-Rzepka, K.
Jesionowski, T.

Powiązania:

https://bibliotekanauki.pl/articles/110719.pdf

Data publikacji:

2013

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

biocomposites
silica
lignin
physicochemical and structural properties

Opis:

A new method is proposed for obtaining biocomposites based on a combination of silica and lignin precursors. Amorphous silica was produced by two methods: one based on hydrolysis and condensation of tetraethoxysilane (sol–gel method) and the other involving precipitation in a polar medium. Additionally, the commercial silica known under the name of Syloid®244 was used. The silica surface was modified to ensure better affinity of the support to activated lignin. The biocomposites obtained were carefully characterised by determination of their physicochemical and dispersive–morphological properties. Electrokinetic stability of the biocomposites was evaluated on the basis of zeta potential dependence on pH. Thermal stability of the biocomposites and their porous structure parameters (surface area, pore diameter and pore volume) were established. The results indicate that silica/lignin biocomposites are much promising for application in many areas of science and industry.

Źródło:

Physicochemical Problems of Mineral Processing; 2013, 49, 2; 497-509
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 26.

Tytuł:

Some applications of barium titanate prepared by different methods

Autorzy:

Sydorchuk, Volodymyr
Khalameida, Svitlana
Skwarek, Ewa
Biedrzycka, Adrianna

Powiązania:

https://bibliotekanauki.pl/articles/2146894.pdf

Data publikacji:

2022

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

barium titanate
synthesis
physicochemical properties
photocatalytic properties

Opis:

The paper presents some application of barium titanate synthesized by different methods. Barium titanate samples were prepared by four procedures: solid state, mechanochemical as direct synthesis and modification as well as hydrothermal and microwave. The obtained samples were systematically studied using X-ray diffraction, nitrogen adsorption, Fourier transform infrared spectroscopy (FTIR), potentiometric titration, and quasi-elastic light scattering and zeta potential measurements. The values of pHpzc (point of zero charge) and pHIEP (isoelectric point) characteristic of the electrical double layer were determined. The prepared samples were tested as photocatalysts under visible light. As a result, relationship between the conditions of barium titanate synthesis, its physicochemical and electrokinetic parameters, as well as photocatalytic activity under visible light was first established.

Źródło:

Physicochemical Problems of Mineral Processing; 2022, 58, 2 (Special issue - selected papers conference: Physicochemistry of interfaces - instrumental methods); art. no. 147192
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 27.

Tytuł:

Effect of different methods of treatment of municipal sewage sludge on their physicochemical properties and their agricultural utilization

Autorzy:

Malinowska, E.
Jankowski, K.
Wiśniewska-Kadżajan, B.
Sosnowski, J.
Kolczarek, R.

Powiązania:

https://bibliotekanauki.pl/articles/123934.pdf

Data publikacji:

2015

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

municipal sewage sludge
physicochemical properties
agricultural utilization

Opis:

In the study the physicochemical properties of selected municipal sewage sludge were compared using the reports on waste generation from the years 2007–2012 in the Mazovia voivodship. The selection was done on the basis of different methods of sludge processing and the number of equivalent inhabitants (NEJ) supported by sewage. Physical and chemical properties of municipal sewage sludge were significantly dependent on the method of purification and treatment methods. These sludges were characterized by a high content of organic matter and macronutrients. The amount of heavy metals (Pb, Cd, Cr, Cu, Ni, Hg and Zn) were within acceptable standards for municipal sewage sludge used in agriculture. Municipal sewage sludge treated by biological method with higher nutrients removal did not create bacteriological danger and were used in agriculture, generally to the cultivation of all agricultural products. Sewage sludge sanitized with lime and subjected to anaerobic digestion did not meet bacteriological standards, which eliminated their use in agriculture.

Źródło:

Journal of Ecological Engineering; 2015, 16, 2; 76-81
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 28.

Tytuł:

Seasonal Variability of Physicochemical Parameters of Water Quality on Length of Uszwica River

Autorzy:

Bogdał, A.
Kowalik, T.
Ostrowski, K.
Skowron, P.

Powiązania:

https://bibliotekanauki.pl/articles/124285.pdf

Data publikacji:

2016

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

ecological potential
water pollution
physicochemical indices
eutrophication

Opis:

The Uszwica river catchment is located in the central part of Lesser Poland province, within Brzeski and Bocheński districts. The river is 61.2 km long, and its catchment area is 322.5 km². It is characterized by forest-agricultural land use and high share of residential areas of both compact (the city of Brzesko) and dispersed nature. In the abiotic terms, the Uszwica in its upper course may be classified as a flysch stream (type 12). From the moment of joining the Niedźwiedź, stream until its discharge into the Vistula at km 151+700 it is a sand and clay lowland river (type 19). Hydrochemical research were conducted in the years 2011 and 2012 at two measurement-control points – one located near the mouth of the river (point 1) and one located about 7.5 km downstream from the city of Brzesko (point 2). Each month 18 water quality parameters were determined and they underwent comparative and statistical analyses. Basic descriptive statistics were calculated for both measurement-control points. Then, they were used to determine the ecological potential of the river and to evaluate water quality parameters with respect to its suitability as fish habitat and eutrophication risk. Significance of differences between the values of individual parameters recorded at different measurement-control points was estimated using non-parametric Mann-Whitney U test for α = 0.05. The same test was used to determine the significance of differences between individual parameters for the winter and summer season at each point. Analysis of the results revealed that water flowing via developed areas (point 2) was significantly less saturated with oxygen and contained higher amounts of suspended solids, organic matter and nutrients, as compared to the section of the river flowing mainly through extensively used agricultural areas. Therefore, the ecological potential of the river was considered good in its lower course and poor upstream from point 2. Disturbances in seasonal concentrations of some biogenic factors indicated high degree of water pollution in the middle course of the Uszwica. However, due to intense self-purification, water quality in the lower course was similar to that in natural conditions. On the entire investigated section of the Uszwica does not meet water quality requirements for salmonids and cyprinids, but the habitats are more favorable near the mouth of the river. Waterassessed at point 2 may be classified as eutrophic due to high concentration of total phosphorus.

Źródło:

Journal of Ecological Engineering; 2016, 17, 1; 161-170
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 29.

Tytuł:

Optimization of the Operation of a Municipal Wastewater Treatment Plant with Hydrocotyle ranunculoides

Autorzy:

Quispe, Rebeca
Soto, Mishel
Ingaruca, Ever
Bulege, Wilfredo
Custodio, María

Powiązania:

https://bibliotekanauki.pl/articles/124846.pdf

Data publikacji:

2019

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

treatment plant
macrophyte
physicochemical parameters
thermotolerant coliforms

Opis:

The objective of the study was to optimize the operation of the municipal wastewater treatment plant (WWTP) of the Sicaya district with Hydrocotyle ranunculoides. The relative growth rate of the macrophyte was determined, in addition to the relationship between the population growth area and the final weight according to the number of days elapsed. Medium fences were implemented and the tributary and effluent of the WWTP were characterized physicochemically and microbiologically. The results of the characterization corresponding to the tributary were as follows: 616 mg of TSS/L, 109.2 mg of BOD₅/L, 305.4 mg of COD/L, 30.3 mg of oils and fats/L and 3 500 000 NMP of thermotolerant coliforms/100 ml. Owing to the implementation of two medium grids, large suspended solids were retained. The highest efficiency of COD removal with respect to the growth area of H. ranunculoides (2 226.96 m²) was 81.53%. While the efficiency of removal of thermotolerant coliforms was 79.2% at a water temperature of 12.32°C . Using the operational optimization model in the WWTP with H. ranunculoides, an area of 3 291.67 m² of macrophyte population growth was achieved with a removal efficiency of 93.71% COD and an area of 3 591.67m² to remove 79.95% of the thermotolerant coliforms at a temperature of 13°C.

Źródło:

Journal of Ecological Engineering; 2019, 20, 9; 228-236
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 30.

Tytuł:

The effect of variety and environment factors on physico-chemical properties of potato starch

Autorzy:

Kolodziej, Z.

Powiązania:

https://bibliotekanauki.pl/articles/1371711.pdf

Data publikacji:

1993

Wydawca:

Instytut Rozrodu Zwierząt i Badań Żywności Polskiej Akademii Nauk w Olsztynie

Tematy:

physicochemical property
starch
environmental factor
potato starch

Źródło:

Polish Journal of Food and Nutrition Sciences; 1993, 02, 2; 43-49
1230-0322
2083-6007

Pojawia się w:

Polish Journal of Food and Nutrition Sciences

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 31.

Tytuł:

Monitoring właściwości fizykochemicznych odpadów wydobywczych pochodzących z Kopalni Węgla Kamiennego LW „Bogdanka”
Monitoring of the physicochemical composition of the mine wastes from the LW “Bogdanka” Hard Coal Mine

Autorzy:

Bzowski, Z.
Dawidowski, A.

Powiązania:

https://bibliotekanauki.pl/articles/372332.pdf

Data publikacji:

2013

Wydawca:

Uniwersytet Zielonogórski. Oficyna Wydawnicza

Tematy:

odpady wydobywcze
monitoring
skład fizykochemiczny
mine wastes
physicochemical composition

Opis:

W pracy przedstawiono charakterystykę fizykochemiczną odpadów wydobywczych z kopalni węgla kamiennego LW „Bogdanka”. Zaprezentowano wyniki prowadzonego od 1996 roku monitoringu składu chemicznego, zawartości zanieczyszczeń metalami oraz stężeń naturalnych radionuklidów. Stwierdzono, że monitorowane właściwości fizykochemiczne tych odpadów pozwalają na ich wykorzystanie jako materiału mineralnego na powierzchni ziemi w szeroko rozumianych pracach niwelacyjnych, także do prewencyjnej na terenach osiadań.
In the paper the physicochemical characterization of the mine wastes from the LW “Bogdanka” hard coal mine is presented. Results of the monitoring, carried out since 1996, cover the chemical composition, abundances of contaminations by metals as well as the concentration of natural radionuclides. It was determined that the monitored physicochemical parameters of the wastes allow their utilization as a mineral material for a vast majority of leveling works, including the prevention against mining subsidence.

Źródło:

Zeszyty Naukowe. Inżynieria Środowiska / Uniwersytet Zielonogórski; 2013, 149 (29); 87-96
1895-7323

Pojawia się w:

Zeszyty Naukowe. Inżynieria Środowiska / Uniwersytet Zielonogórski

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 32.

Tytuł:

Effect of electron radiation on sugar content in inverted liquid sugar

Autorzy:

Podadera, P.
Sabato, S. F.

Powiązania:

https://bibliotekanauki.pl/articles/148037.pdf

Data publikacji:

2009

Wydawca:

Instytut Chemii i Techniki Jądrowej

Tematy:

electron beam
ionizing radiation
inverted liquid sugar
physicochemical properties

Opis:

Inverted liquid sugar is a mixture of sucrose, glucose and fructose, which shows its relevant characteristic on high sweetness power. Ionizing radiation has been applied to different kind of food and ingredients for different reasons, such as pathogens reduction, disinfestations, quarantine purposes, ripening delay among others. Radiation from an electron beam can be utilized as a technique to treat this ingredient because it can process a great volume of material per unit of time. The main goal of this paper was to verify the effect of radiation on the properties of inverted liquid sugar. This ingredient was irradiated in an electron accelerator (Radiation Dynamics) at a dose ranging from 5 to 50 kGy. Sucrose content measurements were reduced by 23% at 30 kGy when compared to control and the reduced sugar content increased around 11%. Density and moisture values were not affected by radiation. The total soluble solids (Brix degrees) rose in function of the absorbed dose.

Źródło:

Nukleonika; 2009, 54, 2; 85-87
0029-5922
1508-5791

Pojawia się w:

Nukleonika

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 33.

Tytuł:

Analysis of some heavy metals and physicochemical parameters of textile sludge sample in the Bahir Dar textile industry, Northern Amhara, Ethiopia

Autorzy:

Talema, Alemu
Abebaw, Alemayehu
Getahun, Addisu

Powiązania:

https://bibliotekanauki.pl/articles/1046523.pdf

Data publikacji:

2019

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

FAAS
Textile sludge
contaminated soil
heavy metals
physicochemical parameters

Opis:

The present study was conducted to characterize the solid sludge from the Bahir Dar textile industry.The concentration of heavy metals (Cr, Cd, Zn, Fe, Pb, Cu and Mn) in the samples were found to be 37.433-50.967, ND, 244.8-279.9, 2868.633-2886.667, 4.567-7.83, 242.767-282.133 and 160.9-212.8 (mg/Kg) respectively. The range of the pH, EC (%), OM (%), OC (%), MC (%), VS (%) and FS (%) in the sludge samples were found to be in the ranges of 7.317-7.771, 1.466-1.872, 12.302-12.778, 7.136-7.412, 9.211-11.576, 44.598-47.778 and 52.222-55.402 respectively. The results of the heavy metals in the textile sludge sample showed that the concentration levels of Cu metal was above the standard guide lines for maximum limit proposed for agricultural soil set by FAO /WHO and in the case of other metals (Pb, Zn, Mn, Fe, Cr), their concentration levels were found below the standard guide lines for maximum limit proposed for agriculture soil set by this organization, but the concentration levels of Cd was not detected in this present study. Finally, the study concluded that pre-treatment process for reducing the amount of some heavy metal is mandatory before the sludge can be used as a soil conditioner / fertilizer in the agricultural soil.

Źródło:

World Scientific News; 2019, 136; 33-51
2392-2192

Pojawia się w:

World Scientific News

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 34.

Tytuł:

Perspectives from literature on the influence of inorganic electrolytes present in plant water on flotation performance

Autorzy:

Manono, M. S.
Corin, K.
Wiese, J.

Powiązania:

https://bibliotekanauki.pl/articles/110721.pdf

Data publikacji:

2018

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

electrolytes
flotation reagents
froth stability
physicochemical interaction
water quality

Opis:

The interaction of inorganic electrolytes with reagents in the flotation of sulphidic PGM bearing ores is not well explored. It has been shown that specific inorganic electrolytes such as Ca2+ and SO42- can affect the wettability of gangue minerals. These could also hinder the adsorption of collectors onto valuable minerals and concurrently enhance or retard froth stability. This presents a challenge as regards understanding what the overarching or controlling mechanisms of interaction between electrolytes, reagents and minerals are as well as predicting how flotation performance will be affected. This review shows that studies in literature have simplified the question of electrolyte-reagent-mineral interactions and that current approaches have not provided fundamental solutions to the challenge of water quality. It is proposed that the complexity of the flotation system requires an in-depth knowledge of the individual electrolyte-reagent-mineral interactions so as to establish whether there are any dominant or synergistic interactions. Such in-depth knowledge should enable the development of pulp chemistry control measures against water quality variations in flotation.

Źródło:

Physicochemical Problems of Mineral Processing; 2018, 54, 4; 1191-1214
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 35.

Tytuł:

Drying Kinetics, Physicochemical Properties and Sensory Quality of the Instant Foxtail Millet as Affected by Drying Methods

Autorzy:

Wang, Yingqiang
Zhao, Hongxia
Song, Xi
Zhang, Wenjie
Yang, Feng

Powiązania:

https://bibliotekanauki.pl/articles/2019405.pdf

Data publikacji:

2022-03-01

Wydawca:

Instytut Rozrodu Zwierząt i Badań Żywności Polskiej Akademii Nauk w Olsztynie

Tematy:

instant foxtail millet
drying kinetics
physicochemical properties
sensory quality

Opis:

The instant foxtail millet was prepared using microwave vacuum drying (MVD), microwave-hot air drying (MHAD), hot air drying (HAD) and traditional roasting (TR). Their effects on drying kinetics, physicochemical properties as well as sensory quality were evaluated and compared. Results showed that the total drying time varied with the drying method used and was about 160, 100, 260, and 45 min for MVD, MHAD, HAD and TR, respectively. The effective moisture diffusion coefficients (Deff) were 6.57×10-9 m2/s, 9.80×10-9 m2/s, 4.14×10-9 m2/s and 6.20×10-9 m2/s for MVD, MHAD, HAD and TR, respectively. Drying resulted in a significant decrease in L* and an increase in a* and b* of the color of products. MVD, MHAD and HAD products had a comparable rehydration ratio and cooking time. Scanning electron microscopy and rehydration process revealed that MHAD and MVD samples had a similar structure with the HAD sample. Drying caused a loss of 6.5–54.9% in the total phenolic content and a loss of 38.4–62.2% in total yellow pigment content. MVD millet displayed the highest total phenolic content (142.56 mg GAE/100 g dry matter) and yellow pigment content (9.56 mg CE/kg dry matter). In sensory evaluation, MHAD, HAD and MVD samples had comparable scores and were all accepted by the panelists, either in dry or rehydrated form. MHAD and MVD can be used as an alternative to hot air drying or traditional roasting in the production of the instant millet due to shorter drying time and better product quality.

Źródło:

Polish Journal of Food and Nutrition Sciences; 2022, 72, 1; 69-78
1230-0322
2083-6007

Pojawia się w:

Polish Journal of Food and Nutrition Sciences

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 36.

Tytuł:

Physicochemical properties of chitin isolated from shell of industrial crabs of various species

Autorzy:

Sorokoumov, Ivan
Zagorskiy, Ivan
Zagorskaya, Darya
Uryash, Vladimir
Kokurina, Nadezhda
Larina, Vera
Nemtsev, Sergei

Powiązania:

https://bibliotekanauki.pl/articles/1035553.pdf

Data publikacji:

2010

Wydawca:

Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe

Tematy:

chitin
industrial crabs of various species
physicochemical properties
shell

Opis:

Differential thermal analysis was carried out over the range of –190 ÷ 400 °С on six samples of chitin from shells of industrial crabs of various species. All samples of the chitin have several relaxation transitions of endothermal character (g1-, g2-, β- and γ-).

Źródło:

Progress on Chemistry and Application of Chitin and its Derivatives; 2010, 15; 5-10
1896-5644

Pojawia się w:

Progress on Chemistry and Application of Chitin and its Derivatives

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 37.

Tytuł:

Determination of Water Quality Index of Selected Water Bodies in Warri, Delta State, Nigeria

Autorzy:

Ama, Ibiam Ntachiobi
Ebichime, Nwajei Godwin
Agbaire, Patience Odafe
Verla, Andrew Wirnkor

Powiązania:

https://bibliotekanauki.pl/articles/1112889.pdf

Data publikacji:

2018

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

arithmetic index
physicochemical parameter
water quality index (WQI)

Opis:

Water Quality index indicating the water quality in terms of index number, offers a useful representation of overall quality of water for public or for any intended use, as well as in pollution abatement programmes and in water quality management. The present study was carried out to determine the Water Quality Index (WQI) of selected rivers in Warri, Delta State, using fourteen physicochemical parameters and on the basis of weighted Arithmetic Index in order to access the suitability of this water for consumption, recreation and other purposes. The parameters were measured monthly for one year at the six selected water bodies. In this study, WQI was determined by the analysis-on the basis of various physicochemical parameters such as pH, chlorides, electrical conductivity, dissolved oxygen, biochemical oxygen demand, total dissolved solid, total suspended solids, chlorides, sulphates, chemical oxygen demand, oil/grease. Result obtained for the different sampling sites were found to fall within the WQI classifications - poor water (100-200) to unsuitable water or unfit (>300). There is, therefore, the need to periodically assess these water bodies to ensure the quality is suitable for the intended purpose.

Źródło:

World News of Natural Sciences; 2018, 16; 42-52
2543-5426

Pojawia się w:

World News of Natural Sciences

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 38.

Tytuł:

Evaluation of Selected Physicochemical Indicators of the Waters of Rudnickie Wielkie Lake after Reclamation
Ocena wybranych wskaźników fizyko-chemicznych wód jeziora Rudnickiego Wielkiego po rekultywacji

Autorzy:

Berleć, Krzysztof
Budzińska, Katarzyna
Michalska, Magdalena

Powiązania:

https://bibliotekanauki.pl/articles/1811727.pdf

Data publikacji:

2020

Wydawca:

Politechnika Koszalińska. Wydawnictwo Uczelniane

Tematy:

reclamation
lake
physicochemical indicators
rekultywacja
jezioro
wskaźniki fizykochemiczne

Opis:

The research carried out was aimed at determining the effectiveness of reclamation of the Rudnickie Wielkie lake. Samples were taken 7-fold in 3 places during the period from October to April. In the tested water was determined by the colorimetric method PO4-3 ions, total P and N, nitrate(V), nitrite(III) and NH4 -N. Additionally, the pH and temperature. The temperature and pH of water analyzed in the course of the study were at the level characteristic for the seasons under study and did not have a significant impact on the content of the determined chemical indicators. The level of biogenic elements and their compounds, determined a few years after reclamation, is higher than the results obtained in 2001 (immediately after reclamation), which may indicate improper sewage and agricultural management in the lake's basin.
Przeprowadzone badania miały na celu określenie skuteczności rekultywacji jeziora Rudnickiego Wielkiego. Próbki pobierano 7-krotnie w 3 miejscach w okresie od października do kwietnia. W badanej wodzie oznaczono metodą kolorymetryczną PO4-3 ions, całkowitą P i N, azotan (V), azotyn (III) i NH4 -N. Dodatkowo pH i temperatura. Temperatura i pH wody analizowanej w trakcie badania były na poziomie charakterystycznym dla badanych sezonów i nie miały istotnego wpływu na zawartość określonych wskaźników chemicznych. Poziom pierwiastków biogennych i ich związków, określony kilka lat po rekultywacji, jest wyższy niż wyniki uzyskane w 2001 r. (Bezpośrednio po rekultywacji), co może wskazywać na niewłaściwe gospodarowanie ściekami i rolnictwem w dorzeczu jeziora.

Źródło:

Rocznik Ochrona Środowiska; 2020, Tom 22, cz. 2; 984-997
1506-218X

Pojawia się w:

Rocznik Ochrona Środowiska

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 39.

Tytuł:

Przestrzenna zmienność parametrów fizykochemicznych gruntów z terenów silnie zasolonych
Spatial Variability of Physicochemical Parameters of Soil in Highly Saline AreasKey words

Autorzy:

Gliniak, M.
Sobczyk, W.
Wielewska, I.

Powiązania:

https://bibliotekanauki.pl/articles/1817954.pdf

Data publikacji:

2016

Wydawca:

Politechnika Koszalińska. Wydawnictwo Uczelniane

Tematy:

KZS Solvay
zasolenie
parametry fizykochemiczne
salinity
physicochemical parameters

Opis:

Ważnym źródłem antropogenicznych zanieczyszczeń środowiska solami jest przemysł sodowy. Składowiska odpadów poprodukcyjnych, lokalizowane obok zakładów, negatywnie wpływają na otaczające środowisko, gdyż wody opadowe wymywają z nich szkodliwe substancje. Celem niniejszego artykułu jest ocena przestrzennego zróżnicowania wybranych parametrów fizykochemicznych osadów na terenie składowisk dawnych Krakowskich Zakładów Sodowych „Solvay”. Na podstawie analizy granulometrycznej stwierdzono występowanie naprzemianległych warstw o uziarnieniu ilastym i różnym stopniu konsolidacji odpadów. Badania laboratoryjne wskazują, iż analizowany osad charakteryzuje się odczynem silnie alkalicznym (średnie pH > 10), wysoką przewodnością elektryczną właściwą (średnio > 10 mS cm-1) i średnią wilgotnością aktualną na poziomie 60%. Stwierdzono obecność jonów o charakterze zasadowym, łatwo rozpuszczalnych w wodzie opadowej, które mają zdolność do akumulacji w głębszych warstwach składowisk. Występowanie tych jonów w próbkach gruntu stwarza warunki stresowe dla wzrostu i rozwoju roślin głęboko korzeniących się, toteż w projektach zieleni bardzo ważnym aspektem jest uwzględnienie gatunków roślin o płytkim systemie korzeniowym i wysokiej odporności na silne zasolenie podłoża. Charakterystyczne parametry fizykochemiczne podłoża i niejednorodność składowanego materiału stanowią podstawę do przeprowadzenia technicznej i biologicznej rekultywacji badanego obszaru i mają duże znaczenie w projektowaniu jego funkcji przestrzennych.
An important source of anthropogenic environment pollution with salts is the sodium industry. Post-production waste dumping grounds, located near the plants, have a negative impact on the surrounding environment because rain water scours harmful substances from them. The aim of this article is to assess the spatial variability of selected physicochemical parameters of soil on the premises of former Sodium Processing Plant “Solvay” in Kraków. The laboratory research showed that the analyzed material has a strong alkaline reaction (average pH > 10), high electric conductivity (average > 10 mS·cm-1) and medium humidity of 60%. There are also ions of alkaline reaction, easily soluble in rain water, which have the ability to accumulate in the deeper layers of the dumping grounds. The existence of those ions in the ground samples creates very stressful conditions for the growth and development of long-rooted plants, therefore it is important in greenery design to include such species of plants that have a shallow root system and are resistant to high salinity of the soil. The characteristic physicochemical parameters of the ground as well as the heterogeneity of the stored material constitute a basis for technological and biological reclamation of the studied area and have large significance in designing its spatial functions.

Źródło:

Rocznik Ochrona Środowiska; 2016, Tom 18, cz. 1; 372-386
1506-218X

Pojawia się w:

Rocznik Ochrona Środowiska

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 40.

Tytuł:

Fizykochemiczne właściwości miodów pszczelich jako kryteria ich autentyczności
Physicochemical properties of honey as criteria of their authenticity

Autorzy:

Majewska, E.
Delmanowicz, A.

Powiązania:

https://bibliotekanauki.pl/articles/2070111.pdf

Data publikacji:

2009

Wydawca:

Stowarzyszenie Inżynierów i Techników Mechaników Polskich

Tematy:

miód
właściwości fizykochemiczne
autentyczność
honey
physicochemical properties
authenticity

Opis:

Sprawdzono możliwości określania autentyczności miodów nektarowych przy zastosowaniu parametrów fizykochemicznych. Do badań wybrano siedem odmian miodów. Uzyskane wyniki pozwoliły stwierdzić, iż określenie niektórych parametrów fizykochemicznych, tj. zawartości cukrów redukujących. HMF. proliny, popiołu oraz przewodności elektrycznej właściwej, może być pomocne przy wykrywaniu zafałszowali.
The aim of this paper was to check the possibility of flural honey authenticity verification using physical and chemical parameters. Seven different floral honey variations were selected for tests. The outcomes confirmed the assumption that determination of some parameters, such as content of glucose and fructose. HMF, proline. ash or electrical conductivity can he helpful in adulteration finding.

Źródło:

Inżynieria i Aparatura Chemiczna; 2009, 1; 36-37
0368-0827

Pojawia się w:

Inżynieria i Aparatura Chemiczna

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 41.

Tytuł:

Właściwości fizyko-chemiczne tkanki mięśniowej po sonifikacji
Physicochemical properties of muscular tissue after sonification

Autorzy:

Dolatowski, Z. J.
Twarda, J.

Powiązania:

https://bibliotekanauki.pl/articles/291312.pdf

Data publikacji:

2005

Wydawca:

Polskie Towarzystwo Inżynierii Rolniczej

Tematy:

wołowina
właściwości fizykochemiczne
sonifikacja
beef
physicochemical properties
sonification

Opis:

Celem badań była ocena zjawisk o charakterze pierwotnym wywołanych sonifikacją wołowej tkanki mięśniowej bezpośrednio po uboju oraz po 24 godz. od uboju. Zakres badań obejmował oznaczenie wodochłonności, kwasowości mięsa i zdolności utrzymywania wody własnej. Otrzymane wyniki oznaczeń właściwości fizyko - chemicznych mięsa "ciepłego" przeprowadzonych bezpośrednio po zastosowaniu obróbki ultradźwiękowej wskazują na brak bezpośrednich efektów oddziaływania drgań na badane cechy. Aplikacja drgań w przypadku mięśni w stanie rigor mortis (tj. po 24 godz. od uboju) wpłynęła różnicująco na zdolność utrzymywania przez nie wody własnej.
It was the subject of this work to evaluate phenomena original in character generated by sonification of beef muscular tissue directly after slaughter and 24 hours after slaughter. The scope of investigation included the determination of water absorption, meat acidity, and moisture-holding capacity. It results from the determination of the physico-chemical properties of "warm" meat carried out directly after ultrasonic treatment that the features being tested were not directly affected by vibration. The application of the vibration in case of muscles in a state rigor mortis (i.e. 24 hours after slaughter) had a different effect on their moisture-holding capacity.

Źródło:

Inżynieria Rolnicza; 2005, R. 9, nr 9, 9; 77-83
1429-7264

Pojawia się w:

Inżynieria Rolnicza

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 42.

Tytuł:

Badanie wybranych własności żeli pod prysznic i płynów do kąpieli w zależności od zastosowanych surfaktantów
The study of the selected properties of shower gels and bubble baths depending on a kind of a used surfactants

Autorzy:

Kowalik, P.
Szyrej, M.

Powiązania:

https://bibliotekanauki.pl/articles/410339.pdf

Data publikacji:

2016

Wydawca:

Uniwersytet Humanistyczno-Przyrodniczy im. Jana Długosza w Częstochowie. Wydawnictwo Uczelniane

Tematy:

kosmetyki
surfaktanty
właściwości fizykochemiczne
cosmetics
surfactants
physicochemical properties

Opis:

W pracy dokonano oceny jakości żeli pod prysznic i płynów do kąpieli o różnym składzie ZPC, na podstawie wybranych właściwości fizykochemicznych, samych kosmetyków lub ich roztworów, tj. pH, roztwarzalność, zdolność emulgowania tłuszczu, pianotwórczość, napięcie powierzchniowe. Wśród badanych żeli pod prysznic najskuteczniejsze okazały się trzy produkty tj. żel „Silver protect” (Nivea), „Magnolia mit Magnolien-Extrakt” (Dusch das) i żel „Senses Sensual Mystique” (Avon). Spośród wszystkich badanych płynów do kąpieli, najlepszymi własnościami myjącymi charakteryzuje się „Ziajka” (Ziaja), płyn przeznaczony do kąpieli dla dzieci po pierwszym roku życia. Preparaty te są bezpieczne dla skóry, bardzo dobrze roztwarzają się w wodzie, charakteryzują się bardzo dobrymi właściwościami pianotwórczymi, zdolnościami emulgacji tłuszczu i obniżania napięcia powierzchniowego.
Cosmetics are substances that have daily, direct contact with the human body, which is why it is extremely important to control their quality and safety. The group washing cosmetics includes shower gels and bubble baths, whose function is to clean the skin. Their main component, due to the utility properties, are surfactants. The quality of washing cosmetics is directly related to the type used surfactants, since some of them may cause skin dryness and skin irritation and even allergic reactions. The aim of study is estimation of the quality of shower gels and bubble baths of different surfactants composition, based on selected physicochemical properties as cosmetics or their solutions, i.e. pH, solubility, the ability to emulsify fat, foaming capacity, surface tension. Among the examined cosmetics, shower gels proved to be the most effective three products, i.e. gel “Silver protect” (Nivea), a gel “Magnolia myth Magnolien-Extrakt” (Dusch Das) and gel “Senses Sensual Mystique” (Avon). Of all the examined bubble baths, the best cleansing properties characterized by “Ziajka” (Ziaja), designed for children after the first year of life. These cosmetics are safe for the skin, very well soluble in water and has very good properties foaming, emulsification capacity of fat and lowering the surface tension.

Źródło:

Chemistry, Environment, Biotechnology; 2016, 19; 53-64
2083-7097

Pojawia się w:

Chemistry, Environment, Biotechnology

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 43.

Tytuł:

Physico-Chemical Characterization of an Urban Wastewater Effluent and its Impact on the Receiving Environment: Oued Nfifikh (Morocco)

Autorzy:

Merbouh, Chaimaa
Namoussi, Soukaina
Kabriti, Mohamed
Naamane, Ayoub
Rihane, Abdeslam
Iounes, Nadia

Powiązania:

https://bibliotekanauki.pl/articles/2068481.pdf

Data publikacji:

2022

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

Oued Nfifikh
water stream
wastewater
physicochemical quality
pollution

Opis:

Oued Nfifikh is among the least studied Moroccan rivers. Thus, the primary aim of this study was to shed light on the quality of this undervalued stream. Its downstream part is affected by one of the most crucial environmental issues. It receives the discharges of wastewater evacuated precariously without prior treatment, which might lead to the degradation of the overall ecological status of this fluvial hydrosystem. This research work aimed to study the physicochemical water quality downstream the river Nfifikh through a monthly monitoring of the physicochemical parameters’ indicator of pollution, from August 2018 to July 2019. The results obtained show that the stream is exposed to high pollution which is mainly organic. Consequently, the wastewater represents a major cause of water quality degradation of this receiving environment: ecological and health impacts are therefore to be expected.

Źródło:

Journal of Ecological Engineering; 2022, 23, 3; 183--193
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 44.

Tytuł:

The Impact of Anthropopressure on Physicochemical State of the Korzkiewka Stream

Autorzy:

Policht-Latawiec, A.
Kanownik, W.

Powiązania:

https://bibliotekanauki.pl/articles/123589.pdf

Data publikacji:

2017

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

water quality
anthropogenic factors
physicochemical indices
Korzkiewka stream

Opis:

The aim of the paper was the identification and assessment of the area of anthropogenic impacts on water quality in the catchment of the Korzkiewka stream flowing through the areas of the Malopolska region. Analyses of physicochemical indices revealed that waters along the whole length of the stream qualified for below good status due to the exceeded EC and nitrate nitrogen concentrations. It was found that among 21 analyzed physicochemical indices, statistically significant differences occurred for 5: total dissolved solids, SO₄^2-., Mg²⁺, K⁺ and water pH. In the headwaters section values of four salinity indices were significantly higher in relation to the other part of the stream. Assessment of anthropogenic factors affecting the catchment water resources conducted on the basis of unitary and percent indices revealed that the dominant category shaping the physicochemical status of the Korzkiewka stream water is municipal economy. The intensity of the influence of the factors from this category was from medium to very high, while in case of sewage discharged through the sewage network, even to outlier intensity. Forestry and agriculture exerted medium pressure, whereas the factors from the industry category had hardly any influence on water in the stream.

Źródło:

Journal of Ecological Engineering; 2017, 18, 5; 199-208
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 45.

Tytuł:

Physicochemical Analysis of the Water Wells in the Area of Kosovo Energetic Corporation (Obiliq, Kosovo)

Autorzy:

Demaku, Skender
Bajraktari, Naser

Powiązania:

https://bibliotekanauki.pl/articles/124197.pdf

Data publikacji:

2019

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

Kosovo Energetic Corporation
wells
physicochemical parameters
heavy metals

Opis:

The authors analyzed the physicochemical parameters and heavy metals characterizing the wells at three different sites (nearby villages) in the area of KEC (Kosovo Energetic Corporation). The KEC power plants are the only ones in Kosovo that use fossil-fueled energy (lignite) for the production of the electricity. This process may pollute the environment through the release of airborne aerosols (contaminated with metals), ash (a part of its content that leaches in the underground waters), etc. This pollutes air, surface water, groundwater and soil. In addition, the coal exploitation activity as raw material for power plants, excavating from mining basins, conveyor belt transport, separation before combustion and other processes involving the formation of dust sources and coal particles in the air also contribute to the pollution. Thus, it is of utmost importance to evaluate the water quality of the wells that are used as drinkable water sources by the people that live in this industrial area.

Źródło:

Journal of Ecological Engineering; 2019, 20, 7; 155-160
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 46.

Tytuł:

Variability of physicochemical properties of water of the transboundary Poprad river

Autorzy:

Policht-Latawiec, A.
Bogdał, A.
Kanownik, W.
Kowalik, T.
Ostrowski, K.

Powiązania:

https://bibliotekanauki.pl/articles/124315.pdf

Data publikacji:

2015

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

Poprad river
physicochemical indices
ecological state
water pollution

Opis:

The results of five-year (2008–2012) hydrochemical research of the Poprad river, the right bank tributary to the Dunajec, were analyzed in the paper. The Poprad, 167 km long and with the catchment area of 2077.3 km², flows for over 100 km through the territory of Slovakia, along the length of 31.1 km is a transboundary river, whereas its 31.0 km long reach is situated in Poland. Concerning its abiotic character, it is an eastern upland river of type 15. The research was conducted in three measurement-control points: 1) located in Leluchów on the Polish-Slovak border at 61.1 kilometer of the river course, 2) in Piwniczna-Zdrój – 23.9 km and 3) in Stary Sącz – 2.9 km before the Poprad outlet to the Dunajec. 21 physicochemical indices and 2 microbiological indicators were assessed in the water samples once a month using referential methods. The paper assesses changes of water quality classes and its usable values along the analyzed Poprad river reach. Moreover, statistical differences between the values of individual indices assessed in various measurement-control points were estimated by means of Mann-Whitney U nonparametric test. On the basis of the conducted analyses of the empirical data it was stated that due to the physicochemical indices, water quality along the whole length of the analyzed river reach was good (class II) – in points 1 and 3 it was determined by mean concentration of total suspended solids, whereas in point 2 COD-Mn values.

Źródło:

Journal of Ecological Engineering; 2015, 16, 1; 100-109
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 47.

Tytuł:

Starches Modified by Combination of Phosphorylation and High-Voltage Electrical Discharge (HVED) Treatment

Autorzy:

Grgić, Ivanka
Grec, Marijana
Gryszkin, Artur
Zięba, Tomasz
Kopjar, Mirela
Ačkar, Đurđica
Jozinović, Antun
Miličević, Borislav
Zavadlav, Sandra
Babić, Jurislav

Powiązania:

https://bibliotekanauki.pl/articles/1363283.pdf

Data publikacji:

2021

Wydawca:

Instytut Rozrodu Zwierząt i Badań Żywności Polskiej Akademii Nauk w Olsztynie

Tematy:

cereal starch
tuber starch
HVED
phosphorylation
physicochemical properties

Opis:

Starch is extensively used in the food industry as a texture modifier, a fat substitute, and in other applications. To optimise starch functional properties for specific use, it is subjected to various modifications. High-voltage electrical discharge (HVED) treatment, as a non-thermal and rapid process, was applied in this research as a single method and in combination with phosphorylation in order to explore its potential for improving starch physicochemical properties. Maize, wheat, potato, and tapioca starches were modified, and Na5P3O10 and Na2HPO4 were used for phosphorylation. Starch gelatinisation parameters (by DSC); paste clarity; and contents of amylose, damaged starch, and resistant starch were determined; and FTIR-ATR spectra were recorded. All modifications reduced the enthalpy of gelatinisation and decreased contents of amylose, resistant starch, and damaged starch. The effect of the HVED treatment on starch properties depended on starch type and combinations with chemicals. HVED could act as an aid in the starch phosphorylation process since the properties analysed were more effectively improved when HVED was combined with phosphorylation than by phosphorylation alone.

Źródło:

Polish Journal of Food and Nutrition Sciences; 2021, 71, 1; 79-88
1230-0322
2083-6007

Pojawia się w:

Polish Journal of Food and Nutrition Sciences

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 48.

Tytuł:

Physicochemical properties of defatted Triticale starch

Autorzy:

Gambus, H
Nowotna, A.

Powiązania:

https://bibliotekanauki.pl/articles/1371364.pdf

Data publikacji:

1992

Wydawca:

Instytut Rozrodu Zwierząt i Badań Żywności Polskiej Akademii Nauk w Olsztynie

Tematy:

defatted starch
physicochemical property
starch
wheat industry
Triticale

Źródło:

Polish Journal of Food and Nutrition Sciences; 1992, 01, 2; 101-107
1230-0322
2083-6007

Pojawia się w:

Polish Journal of Food and Nutrition Sciences

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 49.

Tytuł:

Performance of pozzolan in trickling filter for secondary treatment of urban wastewater in Tlemcen, Algeria

Autorzy:

Hamidi, Amina
Belarbi, Fadila
Bouchelkia, Hamid
Bouchenak Khelladi, Racha M.

Powiązania:

https://bibliotekanauki.pl/articles/2174349.pdf

Data publikacji:

2022

Wydawca:

Instytut Technologiczno-Przyrodniczy

Tematy:

physicochemical parameters
pollution
pozzolan
trickling filter
wastewater treatment

Opis:

The research aims to study the purification performance of a local and natural material as an input or as a biological filter for treating urban domestic wastewater. For this purpose, pozzolan was used as the biofiltration support that was provided from Beni Saf located in the North-West of Algeria. Tests were carried out with a specially modified pilot unit (TE900) for wastewater treatment over a period of four months. To assess the efficiency of the treatment, two main parameters have been focused on - the height of the sprinkler filter (40 cm and 80 cm) and the flow rate (10, 16, and 25 dm3∙h-1). Physicochemical and bacteriological analyses were carried out on raw wastewater and treated water. The obtained results show that the Beni Saf pozzolan-filled trickling filter eliminates a large fraction of the studied pollutants. The purification yields obtained are fairly encouraging; 98% for turbidity, 88% for suspended solids (SS), 94% for chemical oxygen demand (COD), and 98% for biological oxygen demand (BOD5 ). As for bacterial indicators, the formation of biofilms has significantly reduced bacterial activity with a percentage of over 80%. It can be concluded that the reduction of pollutant parameters clearly indicates the effectiveness of the treatment by this ecological process. Therefore, the use of local and natural materials for wastewater treatment can be a promising alternative based on sustainable environmental technologies and development.

Źródło:

Journal of Water and Land Development; 2022, 55; 166--177
1429-7426
2083-4535

Pojawia się w:

Journal of Water and Land Development

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 50.

Tytuł:

Physicochemical properties determining the cooking time of pea (Pisum sativum L.) seeds.

Autorzy:

Prusiński, Janusz
Strychalska, Agnieszka

Powiązania:

https://bibliotekanauki.pl/articles/2199100.pdf

Data publikacji:

2007-06-20

Wydawca:

Instytut Hodowli i Aklimatyzacji Roślin

Tematy:

cooking time
pea cultivars
physicochemical properties of seeds

Opis:

Undamaged pea seeds of Agra, Wenus, Kwestor, Bursztyn, Rola, Turkus, Set, Kujawski and Ramrod cultivars divided into 3 size fractions were evaluated for physicochemical properties, the rate of fresh weight increments, leachate electroconductivity as well as cooking time. In Kujawski, Turkus, Bursztyn and Ramrod cultivars or in the case of small seeds, the mean fresh weight increments during seed incubation in water were greater, while in Set and in the case of large seeds, the increments were smaller.

Źródło:

Plant Breeding and Seed Science; 2007, 55; 19-30
1429-3862
2083-599X

Pojawia się w:

Plant Breeding and Seed Science

Dostawca treści:

Biblioteka Nauki

/5

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