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Tytuł:
Badania płytkich zbiorników wodnych za pomocą metody GPR
GPR investigation of shallow water reservoirs
Autorzy:
Karczewski, J.
Ziętek, J.
Powiązania:
https://bibliotekanauki.pl/articles/183610.pdf
Data publikacji:
2009
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
GPS
metoda georadarowa
sub-bottom profiler
osady denne
GPR
bottom sediment
Opis:
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.
Źródło:
Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie; 2009, 35, 2/1; 437-443
0138-0974
Pojawia się w:
Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The possibilities of the environmental use of bottom sediments from the silted inlet zone of the Rożnów Reservoir
Autorzy:
Tarnawski, M.
Baran, A.
Koniarz, T.
Wyrębek, M.
Grela, J.
Piszczek, M.
Koroluk, A.
Powiązania:
https://bibliotekanauki.pl/articles/184430.pdf
Data publikacji:
2017
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
bottom sediment
environmental purposes
chemical properties
Opis:
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.
Źródło:
Geology, Geophysics and Environment; 2017, 43, 4; 335-344
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mercury contamination of bottom sediments in water reservoirs of southern Poland
Autorzy:
Koniarz, T.
Tarnawski, M.
Baran, A.
Florencka, N.
Powiązania:
https://bibliotekanauki.pl/articles/184703.pdf
Data publikacji:
2015
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
mercury
bottom sediments
reservoirs
geoaccumulation parameters
Opis:
The aim of this study was to assess the mercury concentration in bottom sediments, collected from eight reservoirs located in south-eastern Poland. A DMA-80 Mercury Analyser was used for the analysis of the concentration of mercury in bottom sediments. Concentration of mercury in sediments was between 0.01–0.18 mg∙kg−1. The research results show that 13 samples are above the Polish Hg background level. Only 9 samples are below the background level. Generally, the sediments belonged to class I and II (unpolluted and moderately polluted sediments). The concentration of mercury in bottom sediments follows the order: Rybnik (highest) > Bagna Rzeszowskie > Rzeszów > Ożanna > Brzóza Stadnicka > Brzóza Królewska > Głuchów > Narożniki (lowest). The low mercury content in sediments is related to absent or limited anthropogenic sources of this metal. Elevated concentrations of Hg in bottom sediments of the reservoirs in Rybnik and Bagna Rzeszowskie are related to their proximity to large agglomerations and industrial plants. Organic matter was likely to be the most important factors controlling the concentration and distribution of mercury in the studied sediments.
Źródło:
Geology, Geophysics and Environment; 2015, 41, 2; 169-175
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The application of the germination index in the assessment of the phytotoxicity of bottom sediments from the Rybnik Reservoir
Autorzy:
Szara, M.
Baran, A.
Tarnawski, M.
Koniarz, T.
Powiązania:
https://bibliotekanauki.pl/articles/184221.pdf
Data publikacji:
2017
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
bottom sediment
phytotoxicity
germination index
Phytotoxkit
Opis:
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.
Źródło:
Geology, Geophysics and Environment; 2017, 43, 4; 327-333
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Metals in organs of bottom sediments and aquatic plants of the Ełk River and its tributaries
Autorzy:
Skorbiłowicz, E.
Skorbiłowicz, M.
Zamojska, E.
Wójtowicz, P.
Powiązania:
https://bibliotekanauki.pl/articles/184486.pdf
Data publikacji:
2018
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
river
metals
bottom sediments
aquatic plants
Opis:
The aim of the work was to analyze the content of Ni, Pb and Cd in organs (root, stem, leaf) Typha latifolia L. and Nuphar lutea as well as bottom sediments of the Ełk River and selected tributaries. An attempt was also made to indicate the factors and processes governing the behavior of the investigated metals in the water environment of the examined rivers. The research object was the Ełk River with its three tributaries - the Gawlik River, the Binduga River and the Kuwasy Canal. Samples of bottom sediments, leaves, stems and roots of Typha latifolia L. and Nuphar lutea were collected in August of 2015. The content of metals was determined by flame atomic absorption spectrometry (F-AAS). The results of analyses of sediments and plant material indicate a lack of environmental pollution by nickel (2.58-8.50 mg-kg-1) and lead (3.82-15.99 mg-kg-1) of the Ełk River and its tributaries whereas the cadmium content ranged from 0.16-0.76 mg-kg-1. Nuphar lutea and Typha latifolia L. showed a varied capacity to accumulate nickel (1.20-10.51 mg-kg-1) and lead (0.04-14.16 mg-kg-1), occurring primarily in the roots. The smallest concentration of nickel and lead was recorded in the stems. The highest concentration of cadmium (2.56 mg-kg-1) was noted in the roots and the lowest (0.01 mg-kg) in the leaves. Factor analysis pointed to the processes of mobilizing elements from bottom sediments as a result of pH drop and their uptake by macrophyte roots and sorption processes of metal ions by macrophytes from river waters and their intensive accumulation in bottom sediments.
Źródło:
Geology, Geophysics and Environment; 2018, 44, 3; 281-293
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The content and composition of organic matter in bottom sediments of the Rybnik reservoir - preliminary studies
Autorzy:
Baran, A.
Mierzwa-Hersztek, M.
Gondek, K.
Szara, M.
Tarnawski, M.
Powiązania:
https://bibliotekanauki.pl/articles/184606.pdf
Data publikacji:
2018
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
bottom sediments
organic matter
buffer capacity
pollutions
Opis:
Organic matter has important influences on the fate of environmental pollution in water dam reservoirs. The aim of the studies was to assess content of organic matter fractions in Rybnik reservoir bottom sediments, and to determine their influence on the content of heavy metals and PAHs. In three sediment samples, the content of C organic (Corg), C extracted (Cex), C humic acid (Cha), C fulvic acid (Cfa) and C non-hydrolyzed (Cnh), buffer capacity, and content of heavy metals and PAHs was analyzed. We found the highest content of Corg, Cex, Cha, Cfa and Cnh in sample 3 (the outlet, near the dam), while the lowest content was found in sample 2 (middle). The fraction of Cnh was dominant in sediment sample 3 (outlet, near dam) and 1 (inlet), whereas the fraction of Cha dominated in sample 2 (middle). Rybnik bottom sediments are characterized by their high buffer capacities (samples 3, 1) shaped among others by the high content of organic matter. The high organic matter content in samples 3 (outlet) and 1 (inlet) and also high total contents of heavy metals and PAHS in these sediments demonstrate that these pollutants have a strong affinity for organic matter in the sediments. Moreover, the highest mobility of metals, from sample 2 (middle), is connected with the low content of organic matter substances and the low buffer capacities of sediments.
Źródło:
Geology, Geophysics and Environment; 2018, 44, 3; 309-317
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of bottom sediment supplement on changes of soil properties and on the chemical composition of plants
Autorzy:
Tarnawski, M.
Baran, A.
Koniarz, T.
Powiązania:
https://bibliotekanauki.pl/articles/184697.pdf
Data publikacji:
2015
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
bottom sediment
agricultural utilization
soil properties
heavy metals
Opis:
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.
Źródło:
Geology, Geophysics and Environment; 2015, 41, 3; 285-292
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Studies of heavy metal content in bottom sediments and aquatic plants near treated wastewater discharge
Autorzy:
Skorbiłowicz, M.
Skorbiłowicz, E.
Tarasiuk, U.
Falkowska, M.
Powiązania:
https://bibliotekanauki.pl/articles/184819.pdf
Data publikacji:
2017
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
rivers
wastewater treatment plant
metals
bottom sediment
macrophytes
Opis:
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 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⋅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.
Źródło:
Geology, Geophysics and Environment; 2017, 43, 4; 311-325
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Koncepcja rozwiązań konstrukcyjnych zabezpieczenia wyrobisk podszybia adaptowanego na potrzeby podziemnego zbiornika
Conception of structural protection of underground workings located near the shaft bottom adopted for underground reservoir
Autorzy:
Michałek, M.
Powiązania:
https://bibliotekanauki.pl/articles/349184.pdf
Data publikacji:
2007
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
górnictwo
budownictwo podziemne
podszybie
mining
underground construction
bottom shaft
Opis:
Wycofane z użycia kopalniane budowle podziemne o trwałym charakterze, takie jak szyby, podszybia oraz komory zlokalizowane w skałach płonnych na podszybiu, są z reguły dla kopalni bezużyteczne, a nawet stanowią rodzaj balastu. Stan taki spowodowany jest w przeważającej mierze tym, że nie ma gotowych koncepcji zagospodarowania takich obiektów, które byłyby opracowane z kilkuletnim wyprzedzeniem przed likwidacją budowli. Uniemożliwia to w praktyce znalezienie inwestorów, którzy byliby zainteresowani przejęciem tych obiektów i wykorzystaniem dla celów komercyjnych przyczyniających się do osiągania wymiernych korzyści o charakterze gospodarczym oraz do rozwoju gospodarczego gmin górniczych. W artykule zaprezentowano kilka rozwiązań konstrukcyjnych trwałego zabezpieczenia wyrobisk podszybia dla celów podziemnego zbiornika wody z przeznaczeniem na obiekty z zakresu lokalnej energetyki.
Underground constructions retracted from use like shafts and other big underground structures located near the shafts causes problems for mines and are a source of hazard and costs. Its often a result there are no ideas how to use this objects for another, not mining purposes. Such conceptions should be invented a few years before this objects liquidation. Shortage of such conceptions included both technological and economical aspects make problems with finding investors for use of such objects. In this paper have shown some ideas how to ensure permanent stability of the coal mine underground workings located in the hard rock near the shaft for creation of the underground water reservoir.
Źródło:
Górnictwo i Geoinżynieria; 2007, 31, 3/1; 429-438
1732-6702
Pojawia się w:
Górnictwo i Geoinżynieria
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of bottom sediments on the content of heavy metals in meadow soils
Autorzy:
Kabzińska, K.
Szczesio, M.
Świętosławski, J.
Turek, A.
Powiązania:
https://bibliotekanauki.pl/articles/184612.pdf
Data publikacji:
2015
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
soil
bottom sediment
anthropogenic fractions of metals
AAS method
Opis:
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 ≥ 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 ( R2 = 0.7–0.9) was found. On two sites, the level of heavy metals under investigation shows a significant local influence from anthropogenic pressure.
Źródło:
Geology, Geophysics and Environment; 2015, 41, 1; 25-32
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Właściwości osadów dennych Jeziora Czorsztyńskiego w aspekcie ich wykorzystania w budownictwie ziemnym
Properties of bottom sediments of Czorsztyn Reservoir in the aspect of their usability for earth structures
Autorzy:
Kozielska-Sroka, E.
Chęć, M.
Powiązania:
https://bibliotekanauki.pl/articles/350203.pdf
Data publikacji:
2009
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
osady przydenne
zbiornik
właściwości geotechniczne
bottom sediment
reservoir
geotechnical properties
Opis:
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.
The subject of the paper is the problem of landforming of Czorsztyn Reservoir and transformation of abrasion slopes soils granulation resulting from washing out of fine particles, as well as accumulation of bottom sediments. An attempt of poiting up the possibility of using the bottom sediments for sealing of earth hydraulic structures and for insulation diaphragms of waste deposits has undertaken.
Źródło:
Górnictwo i Geoinżynieria; 2009, 33, 1; 369-376
1732-6702
Pojawia się w:
Górnictwo i Geoinżynieria
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena warunków geotechnicznych i standardów jakości osadów dennych dla potrzeb modernizacji kanału miejskiego we Wrocławiu
Assessment of subsoil geotechnical conditions and bottom deposit quality for the upgrade of the Municipal Interceptor Sewer in Wrocław
Autorzy:
Dzidowska, K.
Noga, L.
Powiązania:
https://bibliotekanauki.pl/articles/349386.pdf
Data publikacji:
2008
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
warunki geotechniczne
osady denne
zanieczyszczenie
geotechnical conditions
bottom deposits
pollution
Opis:
Praca przedstawia warunki geotechniczne podłoża i standardy jakości osadów dennych w dnie Kanału Miejskiego we Wrocławiu dla potrzeb modernizacji kanału w celu przepuszczenia wielkiej wody kontrolowanej. Stwierdzono, że podłoże gruntowe jest generalnie nośne. Holoceńskie i plejstoceńskie grunty piaszczysto-żwirowe są w stanie średnio zagęszczonym i zagęszczonym. Glina piaszczysta moreny dennej jest w stanie twardoplastycznym, graniczącym ze stanem półzwartym. Warstwę gliny należy również traktować jako podłoże szczelne i przydatne przy wykonywaniu osłonowych ścian uszczelniających. Natomiast osady denne w dnie kanału, jako urobek do wydobycia, są niebezpieczne dla środowiska z powodu całkowitej zawartości kadmu, ołowiu, cynku, niklu i rtęci. Zanieczyszczenie metalami ciężkimi osadów dennych powoduje, że urobek po wydobyciu będzie odpadem, który musi być zagospodarowany lub unieszkodliwiony. Z punktu widzenia ostatecznego przeznaczenia wydobytych osadów dennych należy ocenić ich stopień potencjalnego i rzeczywistego zagrożenia dla środowiska przez ustalenie podatności metali ciężkich na wymywanie.
The paper describes the geotechnical conditions and the quality of the bottom deposits in the invert of the Municipal Interceptor Sewer in Wrocław in view of its upgrading to accommodate a great-flood water flow. On the whole, the soil subbase has been found to be able to carry the load. The Holocene and Pleistocene sand-gravel soils are medium-compacted and compacted. The ground moraine sandy clay is in a hard-plastic state verging on a compact state. The clay stratum should be considered as a tight base to be used in the construction of curtain sealing walls. The bottom deposits in the invert of the sewer, when extracted, would be dangerous to the environment due of their total cadmium, zinc, nickel and mercury content. Because of their pollution by heavy metals, the extracted deposits as waste will have to managed or disposed of. Considering their final destination, the potential and actual environmental hazard which the extracted bottom deposits pose should be assessed by determining the leachability of the heavy metals.
Źródło:
Górnictwo i Geoinżynieria; 2008, 32, 2; 99-104
1732-6702
Pojawia się w:
Górnictwo i Geoinżynieria
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zmienność stężenia metali ciężkich w profilach osadów dennych wybranego stawu rybnego
Changeability of heavy metal concentration in bottom sediment profiles in a chosen fish pond
Autorzy:
Florencka, N.
Tarnawski, M.
Powiązania:
https://bibliotekanauki.pl/articles/385354.pdf
Data publikacji:
2007
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
stawy rybne
osady denne
metale ciężkie
fish ponds
bottom sediments
heavy metals
Opis:
W pracy przedstawiono wyniki badań właściwości chemicznych (szczególnie stężeń metali ciężkich) w warstwach osadów dennych wybranego stawu rybnego. Wykazano zmienność stężeń metali ciężkich w profilu głębokościowym osadów. Wyższe stężenia metali występują w miejscach deponowania osadów organicznych, co świadczy o roli materii organicznej w akumulowaniu zanieczyszczeń. Określony poziom stężeń metali śladowych w osadzie nie wskazuje na jego skażenie, a żadna z wartości nie przekroczyła wartości progowych podanych w Rozporządzeniu Ministra Środowiska dotyczącym standardów jakości ziemi.
Investigation results of chemical properties (especially heavy metal concentration) in bottom sediment depth profile were shown. Higher metal concentrations occur in places of organic sediment deposition; this evidences the role of organic matter in accumulation of pollutants. A determined level of metal trace concentration in the sediment do not indicate at its contamination and none of the values was higher than the threshold values given in the Regulation of the of Environment concerning standards Minister of ground quality.
Źródło:
Geomatics and Environmental Engineering; 2007, 1, 1; 23-28
1898-1135
Pojawia się w:
Geomatics and Environmental Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geochemistry indices and biotests as useful tools in the assessment of the degree of sediment contamination by metals
Autorzy:
Koniarz, Tomasz
Tarnawski, Marek
Baran, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/2202856.pdf
Data publikacji:
2023
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
metals
bottom sediments
zinc ore mining area
lead ore mining area
ecotoxicity
risk assessment
Opis:
Ecological and geochemical indicators have been widely accepted as tools with the potential for rapid risk assessment of metal contamination of bottom sediments. In this study we propose a selection of such indicators to characterize the potential ecological risks stemming from metal contamination of the bottom sediments of the Chechło reservoir (S Poland). The Chechło reservoir is located in an area formerly occupied by zinc and lead ore mining and processing industry. High amounts of metals, especially zinc (39.37–4772.00 mg/kg d.m.), cadmium (0.37–21.13 mg/kg d.m.) and lead (4.50–434.49 mg/kg d.m.) have been found in the bottom sediments. Both geochemical (CD – contamination degree) and ecological indices (mean PECQ) were indicative of bottom sediment contamination and their potential toxicity to living organisms. Most of the bottom sediment samples (71%) examined were toxic for Heterocypris incongruens, while only 9% of the samples were toxic to Sinapis alba. However, no significant correlations between the metal content and the response of the test organisms were observed. Correlation and principal component analyses (PCA) showed that silt and clay fractions were the key factors influencing the metal content in the sediments. Our study makes a contribution to building evidence of the need to integrate several indices for the assessment of environmental risks related to the presence of metals in bottom sediments rather than relying on a single one.
Źródło:
Geology, Geophysics and Environment; 2023, 49, 1; 5--18
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of the Mathematical models of the integral drilling indices based on the Dimensional analysis
Autorzy:
Moisyshyn, V.
Borysevych, B.
Yytyaz, O.
Gavryliv, Y.
Powiązania:
https://bibliotekanauki.pl/articles/299197.pdf
Data publikacji:
2014
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
axial static load on the well bottom-hole
angular speed of the drill bit rotation
mathematical model
mechanical drilling speed
average value of torque on the bit
energy intensity for the rock destruction process on the well bottom-hole
stiffness and damping of the drilling tools
Opis:
The dimensional analysis method was used to estimate the influence of the axial static load on the bottom-hole, angular speed of the drill bit rotation, stiffness, and damping of the drilling tools on the integral indices of well drilling. The mathematical models of the mechanical drilling speed, average values of torque on the bit, and energy consumption for the rock destruction process on the well bottom-hole were developed for two interlayers of the Vorotyshchenska formation with the hardness of 1440 and 2050 MPa.
Źródło:
AGH Drilling, Oil, Gas; 2014, 31, 3; 431-440
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 20

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