Browsing by Subject "bottom sediment"

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Access status: Open Access ,
Badania płytkich zbiorników wodnych za pomocą metody GPR
(Wydawnictwa AGH, 2009) Karczewski, Jerzy; Ziętek, Jerzy
In the paper, the applicability of the GPR method for shallow depths investigations is presented. Factors which have essential influence on GPR measurements quality are shown. Measurement techniques used in such investigations are discussed with special regard to GPS application. Results obtained for different reservoirs are shown. To compare, results from sub-bottom profiler are included.
Access status: Restricted ,
Ocena stanu jakości potoku Łęgówka pod kątem zawartości metali ciężkich
(Data obrony: 2017-10-30) Plenzler, Dominika
Wydział Geologii, Geofizyki i Ochrony Środowiska
Celem niniejszej pracy jest ocena stanu jakości potoku Łęgówka pod kątem zawartości metali ciężkich. Do przeprowadzenia badań pobrano próbki osadu dennego, wody oraz zawiesiny. Analizy dokonano dzięki wynikom uzyskanym podczas badań terenowych i laboratoryjnych. W badaniach wykorzystano metody instrumentalne tj.: chromatografia jonowa, AAS, ICP-OES i ICP-MS. Ocenę stanu potoku dokonano poprzez porównanie otrzymanych koncentracji do wartości normatywnych oraz tła geochemicznego. Stwierdzono III klasę jakości wody potoku oraz podwyższone zawartości metali ciężkich dla osadu dennego, które świadczą o występowaniu punktowych źródeł zanieczyszczenia na terenie zlewni.
Access status: Open Access ,
Studies of heavy metal content in bottom sediments and aquatic plants near treated wastewater discharge
(Wydawnictwa AGH, 2017) Skorbiłowicz, Mirosław; Skorbiłowicz, Elżbieta; Tarasiuk, Urszula; Falkowska, Mariola
The paper attempts to determine the degree of impact of discharged wastewater from five treatment plants on the Bug River ecosystem and its inflow, the Kamianka. For laboratory tests, samples of bottom sediments and aquatic plants were collected in 2014. The content of heavy metals: Zn, Pb, Ni in bottom sediments and aquatic plants (root, stem, leaf) growing close to the discharge of purified sewage, were analyzed. The amount of metals in the samples was determined applying the AAS method in its flame version. The average content of the metals determined in bottom sediments from the study points located before the treatment plant were Zn – 21.8, Pb – 11.5, Ni – 13.7 mg $\cdot$ kg$^{-1}$. However, the content of these metals was higher in samples from the collection points which were located after the place of purified sewage discharge and amounted to: Zn – 34.3, Pb – 12.2, Ni – 16.9 mg $\cdot$ kg$^{-1}$. The test plants were Acorus calamus L., Nuphar lutea L., Typha angustifolia L. The content of metals in the individual parts of macrophytes (root, stem, leaf) was as follows: Zn > Pb > Ni. In the bottom sediments and aquatic plants of the Bug and Kamianka rivers, a higher content of lead, zinc and nickel was found after the discharge of treated sewage in relation to their content than before discharge, but it was not a threat to the aquatic environment of the watercourses studied. Statistical analysis showed that the amount of sewage discharged to the tested receivers influenced the content of organic matter, zinc and nickel in bottom sediments.
Access status: Open Access ,
The application of the germination index in the assessment of the phytotoxicity of bottom sediments from the Rybnik Reservoir
(Wydawnictwa AGH, 2017) Szara, Magdalena; Baran, Agnieszka; Tarnawski, Marek; Koniarz, Tomasz
The aims of the study were to assess the phytoxicity of bottom sediments collected from the Rybnik Reservoir. The water reservoir in Rybnik is located in the Silesian Voivodeship. The reservoir constitutes a part of the technological chain of Elektrownia Rybnik S.A. as a direct receiver of industrial and rainwater sewage, sewage from a water treatment plant, blowdowns from cooling towers, and as an essential source of cooling water. Sediment samples were collected with an Eckman sampler from 33 locations. The toxicity of bottom sediments was determined using the Phytotoxkit direct contact test, carried out for 3 plants: Sorghum saccharatum, Sinapis alba and Lepidium sativum. On the basis of the data received, the germination index (GI) was calculated. We found the mean value of the germination index indicated the dominance of the inhibitory effect of bottom sediments on plant growth. Sorghum saccharatum was the most sensitive to pollutants in sediments, while Lepidium sativum was the least sensitive. The Phytotoxkit is a good tool for assessing the toxicity of bottom sediments.
Access status: Open Access ,
The effect of bottom sediment supplement on changes of soil properties and on the chemical composition of plants
(Wydawnictwa AGH, 2015) Tarnawski, Marek; Baran, Agnieszka; Koniarz, Tomasz
The aim of the study was to assess the effect of bottom sediments on the selected properties of light soil as well as the content of trace elements in tested plants. The bottom sediments collected from the Besko reservoir were added to the soil in an amount of 5%, 10%, 30% and 50% of air-dried sediment, in relation to dry soil mass. The pot experiment was conducted on a light soil, with weak loamy sand grain size composition and slightly acid reaction, which was enriched with a supplement of bottom sediment. The test plant was a maize, Bora c.v. An applied bottom deposit revealed in its composition a considerable content of clay fractions, alkaline reaction and low total heavy metal content. Therefore, it may be applied as an admixture to light soils to improve their productivity. The addition of sediment to light soil resulted in the improvement of acidification in soil indicators: increased soil pH and reduced value of hydrolytic acidity, as well as improved sorption properties. A non-uniform effect of bottom sediment admixture on the content of trace elements in maize was determined. The sediment added to the soil increased the content of copper, nickel, chromium and, decreased the contents of zinc and cadmium in shoots. We did not find any excess of the permissible content of metals in plants used as animals forage in the maize biomass.
Access status: Open Access ,
The effect of bottom sediments on the content of heavy metals in meadow soils
(Wydawnictwa AGH, 2015) Kabzińska, Katarzyna; Szczesio, Małgorzata; Świętosławski, Jacek; Turek, Anna
The objects of the study were grasslands situated along the watercourse that collect matter directly from surface runoff from the surrounding fields and ditches. Therefore, the chemical composition of the bottom sediments can be varied. The aim of the study was to determine the content of anthropogenic fractions of selected heavy metals in meadow soils where the material from the watercourse maintenance was stored. Soil samples were collected along the banks of the Witonia »A« Channel (soil with sediment), and 30 meters from the watercourse (soil without sediment). The pH of soils without sediment was in the range 6.2–6.6, whereas the soil with sediment had a pH $\geq$ 7.0. The content of organic matter was 5.7–31.5%. The concentration of anthropogenic fractions of elements was determined by atomic absorption spectrometry after extraction with a (1 + 4) HCl solution. The anthropogenic enrichment coefficients (AEC) calculated in relation to the geochemical background level, were within the range: 0.9–2.8 for Zn, 1.2–3.5 for Cu, 0.7–3.1 for Pb, 1.0–2.8 for Ni and 0.3–0.9 for Cd. The AEC values for lead, copper, cadmium and nickel were usually higher in samples without sediment. A significant correlation between the metal and organic content ($R^{2}$ = 0.7–0.9) was found. On two sites, the level of heavy metals under investigation shows a significant local influence from anthropogenic pressure.
Access status: Open Access ,
The possibilities of the environmental use of bottom sediments from the silted inlet zone of the Rożnów Reservoir
(Wydawnictwa AGH, 2017) Tarnawski, Marek; Baran, Agnieszka; Koniarz, Tomasz; Wyrębek, Maciej; Grela, Jerzy; Piszczek, Monika; Koroluk, Agnieszka
The aim of the study was to assess the properties of bottom sediments from the inlet zone of the Rożnów Reservoir (South Poland) and to analyse the potential possibilities to use them for environmental purposes. The inlet zone of the reservoir is particularly intensely shallowed by means of the silts of the Dunajec River. A total of 20 samples were collected from the designated cross-sections. In air-dry samples of the sediments, granulometric composition, pH electrolytic conductivity (EC), sorption properties, organic carbon carbonates and macroelements content were determined. Bottom sediments from the Rożnów Reservoir indicate a great potential possibility to use them for environmental purposes (agriculture, reclamation). However, in order to fully evaluate the possibility of bottom sediment management, it is necessary to carry out an analysis of the ecological risk related to the content of heavy metals, PAHs, PCBs and to evaluate their eco-toxicity. Moreover, the main barriers to the environmental application of bottom sediments are a lack of appropriate legislation.
Access status: Open Access ,
Właściwości osadów dennych Jeziora Czorsztyńskiego w aspekcie ich wykorzystania w budownictwie ziemnym
(Wydawnictwa AGH, 2009) Kozielska-Sroka, Ewa; Chęć, Magdalena
Przedmiotem artykułu jest problem zalądowywania Jeziora Czorsztyńskiego oraz transformacja uziarnienia gruntów skarp abrazyjnych związana z wymywaniem części drobnych, a także akumulacją osadów przydennych. Podjęto w nim również próbę wskazania możliwości wykorzystania osadów przydennych do uszczelniania ziemnych budowli hydrotechnicznych oraz do wykonywania przesłon izolacyjnych w składowiskach odpadów.