Temat: bottom - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Bottom Sediments as an Element of the Krąpiel River Ecosystem
Autorzy:: Raczyńska, M.
Machula, S.
Łukaszewicz, P.
Raczyński, M.
Powiązania:: https://bibliotekanauki.pl/articles/125464.pdf
Data publikacji:: 2016
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: bottom sediments
Krapiel river
breeding of salmonids
bottom fauna
Opis:: Research on the structure of sediments was carried out in 2015 in the river Krąpiel and its tributaries. The main objectives of this study were to classify the types of sediments with grain size analyzing according three different criteria, as well as influence of the substrate on the abundance and diversity of macrobenthic organisms, and to determine the quality of the ground for natural breeding of salmonids. It was found that according to Polish standards, bottom sediments of the Krąpiel river and its tributaries belong to the coarse – gravel type or sandy – gravel type, whereas according to the method used in Anglo-Saxon countries – these are sandy sediments. It was also shown that the grain size of bottom sediments of the Krąpiel river and its tributaries determine friendly living environment for macroinvertebrates and for breeding salmonids.
Źródło:: Journal of Ecological Engineering; 2016, 17, 2; 121-127
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Macrophytes as Ełk River Quality Status Evaluation Indicators Based on Example of Nickel
Autorzy:: Skorbiłowicz, E.
Skorbiłowicz, M.
Zamojska, E.
Ofman, P.
Wójtowicz, P.
Powiązania:: https://bibliotekanauki.pl/articles/123062.pdf
Data publikacji:: 2016
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: river
nickel
bottom sediment
macrophytes
Opis:: The aim of the study was to analyze the content of Ni in fractions of 1.0–0.2 mm, 0.2–0.1 mm, 0.1–0.063 mm, 0.063–0.02 mm, and <0.02 mm of river bottom sediments and plants (root, stem, leaf) of broadleaf cattail (Typha latifolia), yellow water lilies (Nuphar lutea), and cowbane (Cicuta virosa). Nickel content in bottom sediment was slightly higher than the geochemical background. The largest amounts of Ni were associated with the finest fraction, while the smallest with the thickest fraction. The highest content of this element was recorded at the point Ełk Barany, which was connected with developing industry in the city of Ełk. All of the tested plants showed greater Ni contents than the amount naturally occurring in plants. In most cases, most of Ni was associated with plant roots, and the least with leaves. It has been proven that aquatic plants can be good indicators of the aquatic environment status.
Źródło:: Journal of Ecological Engineering; 2016, 17, 3; 155-160
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Characteristics of Spatial Distribution of Phosphorus and Nitrogen in the Bottom Sediments of the Water Reservoir Poraj
Autorzy:: Rozpondek, K.
Rozpondek, R.
Pachura, P.
Powiązania:: https://bibliotekanauki.pl/articles/123884.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: bottom sediments
spatial distribution
eutrophication
Opis:: The aim of this study was to determine the content of phosphorus and nitrogen in the bottom sediments of the Poraj Reservoir located on the Warta River, along with defining their spatial distribution and the relationship between these elements and organic matter, aluminum and iron. Samples of bottom sediments were collected on the basis of regular measurement grid of 46 points located in the area of the water reservoir Poraj. The collected samples were analyzed in terms of content of following elements, which values are in range: total phosphorus (TP) 0.06 – 5.06 g/kg, total nitrogen (TN) 0.17 – 9.66 g/kg, organic matter (OM) 0.49 – 28.41% of solid content, aluminum (Al) 2.44 – 145.15 g/kg and iron (Fe) 0.28 – 16.50 g/kg. By using of GIS system, spatial distribution of obtained results of laboratory analyzes were interpolated (Inverse Distance Weighted method was used). On basis of spatial distribution it was noted that in northern part of water reservoir bottom sediments have greater values of TP, TN and OM than in southern part. The study also included calculation of correlation between: OM and TN (n=46, R² = 0.9335), TN and Fe (n=46, R² = 0.8782), TN and Al (n=46, R² = 0.8629), OM and Fe (n=46, R² = 0.8243), OM and Al (n=46, R² = 0.7981), TP and Fe (n=46, R² = 0.7456), TP and Al (n=46, R² = 0.6209). The presented pilot studies show that the potential content of phosphorus, nitrogen and organic matter in the sediments of the water reservoir Poraj can reach a significant level. The need to plan and carry out further research allowing the evaluation of the properties of the analyzed elements and examining their potential impact on water quality in the tested water reservoir was stated.
Źródło:: Journal of Ecological Engineering; 2017, 18, 4; 178-184
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: The Content of Heavy Metals in Bottom Sediments of Selected City Rivers of the Podlasie Province
Autorzy:: Skorbiłowicz, M.
Skorbiłowicz, E.
Górska, M.
Powiązania:: https://bibliotekanauki.pl/articles/124842.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: heavy metals
river
bottom sediments
Opis:: The purpose of the work was to determine the relationship between the state of the water environment quality of selected rivers (Zn, Cr, Pb, Cd and Cu tests in bottom sediments), and the sources of pollution resulting from the close proximity to the cities, through which they flow. The following rivers were selected for the study: the Biała river flowing through the city of Białystok, the Narew river flowing through the city of Tykocin and the village of Złotoria, the Supraśl river flowing through the village of Michałowo and Gródek as well as the Biała river flowing through the city of Bielsk Podlaski. The sediments were collected four times from the same points in 2016 in the period from July to October. The sediment samples were collected from the points located on rivers before and beyond towns and villages. The contents of the following metals were tested in the bottom sediment samples: Zn, Cr, Pb, Cd and Cu. The analyses were carried out applying the flame absorption spectrometry method. The statistical multivariate CA and FA analyzes were used. The highest contents of Zn, Pb and Cr were recorded in the bottom sediments from the following rivers: Biała (Białystok) and Biała inflow of Orlanka (Bielsk Podlaski), which resulted from the anthropogenic activity. The research also showed the impact of the agricultural activity due to the slightly elevated Cd level.
Źródło:: Journal of Ecological Engineering; 2018, 19, 4; 197-206
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Assessment of heavy metals contents in bottom sediments of Bug river
Autorzy:: Skorbiłowicz, E
Powiązania:: https://bibliotekanauki.pl/articles/123129.pdf
Data publikacji:: 2014
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: Bug river
bottom sediment
heavy metals
Opis:: The development of industry, agriculture, and transport contributes to an increased environmental pollution by heavy metals. The aim of the study was preliminary assessment of the contents of selected metals (lead, cobalt, copper, chromium, cadmium and nickel) in the sediments of Bug river. The study comprised part of the river flowing through Poland. It was found that the Bug river sediments are not contaminated in respect to the content of tested metals. Based on the analysis of the study results, these metals can be lined up in the following order: Cr > Pb > Cu > Ni > Co > Cd. Statistical analysis showed that copper and chromium occur in Bug river sediments in forms bindings with organic matter in majority of cases. The granulometric analysis of sediments from Bug river revealed the largest percentage of two fractions: 1.0–0.2 mm with average of 47.7 ± 19.77% and 0.2–0.1 mm with average of 20.6 ± 7.7%. These are the dominant fractions with the accumulation of metals in river sediments, which has been confirmed by statistical analysis.
Źródło:: Journal of Ecological Engineering; 2014, 15, 3; 82-89
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Features of Heavy Metals Accumulation in Bottom Sediments of the Southern Bug Hydroecosystem
Autorzy:: Mitryasova, Olena
Koszelnik, Piotr
Gruca-Rokosz, Renata
Smirnov, Victor
Smirnova, Svitlana
Bezsonov, Yevgen
Zdeb, Monika
Ziembowicz, Sabina
Powiązania:: https://bibliotekanauki.pl/articles/124229.pdf
Data publikacji:: 2020
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: heavy metals
hydroecosystem
bottom sediments
concentration ratio
Opis:: The performed studies allowed determining the peculiarities of heavy metals accumulation in the sediments, as well as the nature of their distribution in the hydroecosystem Southern Bug (Ukraine). Geochemical anomalies are formed in the zones of influence of industrial and urban agglomerations. Technogenic pollutions of bottom sediments with heavy metals affects the qualitative state of the water environment and can cause cumulative toxicosis on the hydrobiont population in the zones of geochemical anomalies formation, namely in the area of influence of the Nova Odessa and Mykolaiv cities. The mechanism of the cumulative toxicosis emergence is accompanied by chronic effects of low concentrations on hydrobionts with an excess of permissible fluctuations on a regional background, which ultimately contributes to the development of intoxication.
Źródło:: Journal of Ecological Engineering; 2020, 21, 3; 51-60
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Bottom Deposits of Stratified, Seepage, Urban Lake (On the Example of Tyrsko Lake, Poland) as a Factor Potentially Shaping Lake Water Quality
Autorzy:: Augustyniak, R.
Neugebauer, M.
Kowalska, J.
Szymański, D.
Wiśniewski, G.
Filipkowska, Z.
Grochowska, J.
Łopata, M.
Parszuto, K.
Tandyrak, R.
Powiązania:: https://bibliotekanauki.pl/articles/125198.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: urban lake
phosphorus
bottom sediment
internal loading
Opis:: The object of the study was Tyrsko Lake (area 18.6 ha, max. depth 30.4 m), located in the western part of Olsztyn (Olsztyn Lakeland). This lake is one of the clear water lakes in Olsztyn, but the progressive deterioration of water quality has been observed during recent years. The phosphorus concentration in the water-sediment interface, phosphorus fractions quantity and the amount of components which can bind this element was investigated in the upper (0–5 cm) layer of deposits. The aim of study was to analyze the potential influence of bottom sediment on the lake water quality. The obtained results revealed that the bottom sediment of Tyrsko Lake can be classified as mixed, silica-organic type, with a relatively high content of iron (over 4% Fe in d.w.). The total phosphorus content was ca. 3.5 mg P g,^-1 d.w. on average. Phosphorus in the bottom sediment was bound mainly with organic matter (NaOH-nrP fraction), which had over 50% share in TP. Highly mobile fractions (NH₄-Cl-P and BD-P) together only included ca. 5% to 7% TP. The obtained results show that the bottom sediment of Tyrsko Lake can bind phosphorus quite effectively. The calculated internal mineral phosphorus loading during summer stagnation period was 10.9 kg and it was lower that the assessed annual external phosphorus load (22.6 kg). The assessed annual phosphorus loading from both sources was still lower than the critical load according to Vollenweider criteria. However, due to the fact that the internal loading phenomenon is occurring in the lake, it should be taken into consideration that the lake water quality can deteriorate gradually during the longer time perspective. These findings should be accounted for in the future if the potential protection and restoration procedures will be developed.
Źródło:: Journal of Ecological Engineering; 2017, 18, 5; 55-62
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Environmental and Geochemical Parameters of Bottom-Sediment from the Southern Bug Estuary
Autorzy:: Mitryasova, Olena
Koszelnik, Piotr
Gruca-Rokosz, Renata
Smyrnov, Victor
Smyrnova, Svitlana
Kida, Małgorzata
Ziembowicz, Sabina
Bezsonov, Yevhen
Mats, Andrii
Powiązania:: https://bibliotekanauki.pl/articles/1839119.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: heavy metals
hydroecosystem
bottom sediment
water resource
Opis:: The bottom sediments of river hydroecosystems were studied for the gross content of heavy metals (K, Ti Cr, Fe, Ni, Cu, Zn, Rb, Sr and Hg). The environmental and geochemical processes of bottom-sediment formation in aqua landscapes were analyzed, allowing us to stress the need to determine the methodological basis for the correlation-regression dependence of the heavy metal accumulation processes in bottom sediments, as well as total content of organic carbon. The ranking of pairwise correlation coefficients arranged in decreasing order is: TOC:Cu (0.87) >TOC:K (0.82) >TOC: Ni (0.75) > TOC:Sr (0.73) > TOC:Fe, (0.7) >TOC:Ti (0.67) > TOC:Hg (0.63) > TOC: Cr (0.58) >TOC:Rb (0.56) > and TOC:Zn (0.51). The proposed methodological approach determines the environmental and geochemical aspects of the sedimentation processes heavy metals, while also identifying the general trends in hydroecosystems prone to the anthropogenic impact.
Źródło:: Journal of Ecological Engineering; 2021, 22, 2; 244-255
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Assessing Spatial Distributions of Total Trace Elements Content in Bottom Sediments of Dzierżno Duże Water Reservoir – Geostatistics-Based Studies
Autorzy:: Rozpondek, R.
Rozpondek, K.
Powiązania:: https://bibliotekanauki.pl/articles/123432.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: bottom sediments
spatial distribution
trace elements
geostatistics
Opis:: The aim of this study was to assess the spatial distributions of total trace elements content in the bottom sediments of Dzierżno Duże water reservoir, along with the comparison of the accuracy and characteristics of Kriging and IDW interpolations. On the basis of regular measurement grid consisting of 53 points, bottom sediments samples were collected. Mean values of total trace elements content in bottom sediments of Dzierżno Duże were as follows: Zn – 410 mg/kg, Pb – 57 mg/kg, Cr – 36 mg/kg, Cu – 40 mg/kg, Cd – 5 mg/kg, Ni – 16 mg/kg and Ba – 267 mg/kg. According to the geochemical quality classification, the concentrations of Cd in 32% of samples were assigned to class IV (heavily contaminated), 45% to class III (contaminated), Zn in 42% samples to class III with 1 sample in class IV and 26% to class II (slightly contaminated), Pb in 9% to class III and 58% to class II, Cu in 4% to class III and 68% to class II, Cr in 17% to class II, Ni in 55% to class II, Ba in 8% to class III and 61% in class II. Coefficient of determination was determined between each case of trace elements content. The highest correlation (R2 in range from 0.81 to 0.96) was observed between Zn and Pb, Zn and Cu, Zn and Cr, Zn and Ni, Pb and Cu, Pb and Cr, Cu and Cr, Cr and Ni. Significant correlation (R2 in range from 0.70 to 0.80) occurred between: Zn and Cd, Pb and Ni, Cu and Ni, Cd and Ni. The lowest correlations (R2 in range from 0.25 to 0.70) were observed between concentration of Ba and the rest of trace elements. Two different interpolation methods were chosen for the purpose of generating spatial distributions – Inverse Distance Weighted and Ordinary Kriging. These methods were chosen for purpose of obtaining optimal accuracy result of spatial distributions. The distributions of trace elements content were classified by means of geochemical criteria. In the case of accuracy comparison between IDW and Ordinary Kriging, the former had slightly better results in terms of mean value and root mean square. The generated spatial distributions allowed to determine the most contaminated areas, which were mainly northern-central and southern-central parts of water Dzierżno Duże reservoir.
Źródło:: Journal of Ecological Engineering; 2018, 19, 3; 52-60
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

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

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Skocz do pozycji: 11.

Tytuł:: Zinc and lead in bottom sediments and aquatic plants in river Narew
Autorzy:: Skorbiłowicz, E.
Powiązania:: https://bibliotekanauki.pl/articles/124796.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: river
bottom sediment
aquatic plants
zinc
lead
Opis:: Aquatic ecosystems are a valuable part of natural environment. The increasing level of pollution in waters transforming biocoenoses and other adverse effects of the impact of toxic substances have contributed to the development of biological monitoring. The aim of the study was to determine the changes in contents of zinc and lead in bottom sediments and roots of aquatic plants: Phragmites australis and Acorus calamus in the river Narew. There were 14 points on the river, from where samples of bottom sediments and plant material were collected. The contents of lead and zinc were determined by means of flame atomic absorption spectrophotometry using Varian device. It was proven that bottom sediments were characterized by low contents of zinc and lead except from two sampling points: in Bondary and Narew. Achieved results of analyzes of plant material showed a slight exceeding in the case of lead. Spatial distribution of zinc and lead contents in examined roots of plants coincided with their contents in bottom sediments, which was also confirmed by statistical analysis. It was proven that aquatic plants had greater tendency for accumulation of metals than bottom sediments.
Źródło:: Journal of Ecological Engineering; 2015, 16, 1; 127-134
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Możliwości wykorzystania osadów dennych pochodzących z rzeki San
Possibility of use of bottom sediments derived from the San River
Autorzy:: Maj, K.
Koszelnik, P.
Powiązania:: https://bibliotekanauki.pl/articles/401405.pdf
Data publikacji:: 2016
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: osady denne
jakość osadów
metale ciężkie
PCB
WWA
bottom sediments
quality of bottom sediments
heavy metals
PCB-s
Opis:: Osady denne są wydobywane z dna rzek, jezior, kanałów, zbiorników retencyjnych oraz stawów w celu zwiększenia ich pojemności retencyjnej oraz poprawy walorów użytkowych. Wydobyty urobek, który nie zawiera substancji szkodliwych może być odpowiednio wykorzystany. Kierunek zagospodarowania osadów dennych jest uzależniony od ich właściwości chemicznych i fizycznych. W pracy przedstawiono możliwości wykorzystania osadów dennych w rolnictwie, leśnictwie i budownictwie. Omówiono kryteria decydujące o technologii zagospodarowania osadów dennych. Ponadto zaproponowano własny schemat postępowania z wybagrowanymi osadami dennymi oparty na polskim prawodawstwie. Opierając się na wyżej wymienionym schemacie zaprezentowano potencjalne sposoby wykorzystania osadów dennych pochodzących z rzeki San. Charakterystyka chemiczna tych osadów wskazuje na ich umiarkowane zanieczyszczenie substancjami organicznymi i metalami ciężkimi, dlatego też mogą być zastosowane do użyźniania gruntów ujętych w Rozporządzenie Ministra Środowiska z dnia 9 września 2002 r. w sprawie standardów jakości gleby oraz standardów jakości ziemi (Dz.U. 2002 Nr 165 poz. 1359).
Bottom sediments are extracted from the bottom of river, lakes, canals, reservoirs, and ponds in order the enhance their capacity and to improve the retention values. Excavated spoils, that does not contain harmful substances may be used. The direction of the management of bottom sediments depends on their chemical and physical properties. At work are examples of the use of bottom sediments in agriculture, forestry and construction. Discusses the criteria for sediment management technology. Proposed their own scheme to use dredging sediments in compliance with the Polish legislation. Based on the above diagram shows the potential ways to use bottom sediment from river San. Physico-chemical characteristics of the sediments indicates on their moderate pollution of organic substances and heavy metals, be used to fertilize the land included in the Regulation of Minister of the Environment of 9 September 2002 on the quality of soil and earth quality standards (2002 No 165 pos. 1359).
Źródło:: Inżynieria Ekologiczna; 2016, 48; 147-152
2081-139X
2392-0629
Pojawia się w:: Inżynieria Ekologiczna
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Ashes from Sewage Sludge and Bottom Sediments as a Source of Bioavailable Phosphorus
Autorzy:: Ciesielczuk, T.
Rosik-Dulewska, C.
Poluszyńska, J.
Ślęzak, E.
Łuczak, K.
Powiązania:: https://bibliotekanauki.pl/articles/125013.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: phosphorus
bioavailability
ash
sewage sludge
bottom sediments
extraction
Opis:: Phosphorus is an element necessary for the growth of plants. As phosphate rock gets depleted, it becomes an increasingly scarce resource. Therefore, it seems necessary to implement simple methods of cheap and effective phosphorus recovery from waste. The ashes of municipal sewage sludge and bottom sediments constitute particularly valuable sources of phosphorus. However, these materials usually carry significant amounts of pollutants, including heavy metals. Optimization of ash phosphorus sequential extraction methods from a thermal conversion of sewage sludge and bottom sediments allows to select an effective and simple technology of phosphorus recovery, while maintaining low heavy metal pollution, which is one of the main restrictions in use of ashes. Determination of an amount of bioavailable phosphorus is therefore a basis for estimation of the possibility of using it from waste. Extraction using the Golterman method or shaking out with calcium lactate or Trougs reagent indicates that the ashes from sewage sludge and bottom sediments are rich sources of bioavailable phosphorus, which could find use under field conditions as a viable alternative to fertilizers containing fossil phosphorus.
Źródło:: Journal of Ecological Engineering; 2018, 19, 4; 88-94
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Distribution of Nickel, Copper and Cobalt in the Grain Fractions of Bottom Sediments of the Sokołda River and its Tributaries (Poland)
Autorzy:: Skorbiłowicz, Elżbieta
Skorbiłowicz, Mirosław
Misztal, Wojciech
Powiązania:: https://bibliotekanauki.pl/articles/123363.pdf
Data publikacji:: 2020
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: metals
heavy metals
bottom sediments
grain fraction
rivers
Opis:: In recent years, the interest in the occurrence of heavy metals in the natural environment has been observed. The heavy metal contamination can lead to serious environmental problems. The aim of the study was to estimate the total content of heavy metals: Ni, Cu and Co, in the surface layer of the bottom sediments of the Sokołda river and its tributaries, and to determine the relationship between the grain size and scope of their metal content. Determination of metals in the bottom sediment samples was performed by means of atomic absorption spectrometry (ASA). The research on the Sokołda river and its tributaries showed low levels of Ni, Cu and Co. It was proven that the majority of studied metals were contained in the smallest clay fraction <0.02 mm. On the other hand, the least studied metals were accumulated in 1.0–0.2 mm and 0.2–0.1 mm fractions. The 1.0–0.2 mm and 0.2–0.1 mm fractions contain around 80% of the tested metal forms, while the 0.02–0.063 mm and <0.02 mm fractions – only a few percent. This speaks for the determination of metals in the 1.0–0.1 mm fraction, that contains both coarser and clay fractions, and thus most reliably reflects the actual load of pollutants carried by the sediment. Studies have shown that the main sources of pollution in the Sokołda river catchment are primarily surface runoff, and to a lesser extent, wastewater (municipal and industrial).
Źródło:: Journal of Ecological Engineering; 2020, 21, 1; 89-97
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Zawartość metali ciężkich w osadach dennych cieku o zlewni rolniczej na przykładzie rzeki Gowienica
The content of heavy metals in bottom sediments of the watercourse in agricultural catchment on the example of the river Gowienica
Autorzy:: Szydłowski, K.
Rawicki, K.
Burczyk, P.
Powiązania:: https://bibliotekanauki.pl/articles/401120.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: osady denne
metale ciężkie
Gowienica
bottom sediments
heavy metals
Opis:: Analizie chemicznej poddano próbki osadów dennych pochodzących z rzeki Gowienica. Próbki pobierano w latach 2014 i 2015 w wybranych punktach badawczych, które wyznaczono w zależności od sposobu zagospodarowania i użytkowania terenów przyległych. W pozyskanym materiale oznaczono zawartość całkowitą metali ciężkich tj.: Cd, Co, Cr, Ni, Pb oraz Hg. Na podstawie uzyskanych wyników analiz chemicznych wykazano podwyższone stężenia ołowiu, niklu, chromu oraz rtęci, które przekraczały wartości progowe, powyżej których obserwuje się szkodliwe oddziaływanie zanieczyszczeń (TEL). Nie stwierdzono natomiast ponadnormatywnych stężeń tych zanieczyszczeń dla wyznaczonej wartości granicznej (PEL) powyżej której obserwuje się szkodliwe oddziaływanie zanieczyszczeń na organizmy. Przeprowadzone analizy chemiczne wykazały jednak przekroczenia wartości naturalnej kobaltu (tło geochemiczne 2,0 mg⋅kg^-1) dla osadów wodnych Polski w poszczególnych punktach badawczych. Przyczyną tych przekroczeń w pobranych osadach dennych były najprawdopodobniej spływy powierzchniowe z pól i łąk w formie nawozów i środków ochrony roślin oraz dopływ ścieków bytowych.
The samples of bottom sediments for chemical analysis were collected from Gowienica river and its tributaries. The samples were collected in 2014 and 2015 from the established sampling points on differently managed and utilized adjacent areas. Total content of heavy metals, i.e.: Cd, Co, Cr, Ni, Pb and Hg were measured in the collected material. The results indicate that the concentrations of lead, nickel, chromium and mercury exceeded the level indicating the harmful impact of pollution (TEL) , but none of the analyzed heavy metals exceeded the limit (PEL) above which harmful effects of pollution on organisms can be observed. However, according to another classification (LAW), the analyzed sediments were between two classes (unpolluted deposits – Class I), and unpolluted / moderately polluted deposits (class I-II). Nevertheless, a chemical analysis showed that the natural cobalt concentration (geochemical background; 2.0 mg⋅kg-1) for aquatic sediments in Poland was exceeded. The reasonfor the exceed cobalt concentration in natural sediments was, most probably, the surface runoffs from fields and meadows in the form of fertilizers, plant protection products and the domestic waste water.
Źródło:: Inżynieria Ekologiczna; 2017, 18, 4; 218-224
2081-139X
2392-0629
Pojawia się w:: Inżynieria Ekologiczna
Dostawca treści:: Biblioteka Nauki

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