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Wyświetlanie 1-25 z 729
Tytuł:
Hydrochemical Indicators Dynamic in Surface Water
Autorzy:
Mitryasova, Olena
Cieśla, Maksymilian
Nosyk, Anastasia
Mats, Andrii
Powiązania:
https://bibliotekanauki.pl/articles/1955476.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
surface water quality
water security
hydrochemical indicators
regression analysis
mathematical modeling
forecast of the environment state
Inhul river
Opis:
On the basis of the analysis of wide temporal monitoring data, a forecast of the integrated hydrochemical indicators of the waters of the Inhul river (Ukraine) was carried out. The performed analysis was also the basis for the determination of a mathematical model of natural fluctuations of the indicators studied. The determined sinusoidal dependence of the integrated water quality indicators allowed determining the average time of fluctuations concerning the processes of self-organisation of river waters. In practice, the developed mathematical models may constitute a valuable support and supplement to the existing models in the field of prediction of self-organization processes of river waters. They may also contribute to even more effective minimization of undesirable effects of anthropogenic impact on aquatic ecosystems.
Źródło:
Journal of Ecological Engineering; 2021, 22, 8; 111-122
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Temporal Patterns of Quality Surface Water Changes
Autorzy:
Mitryasova, Olena
Pohrebennyk, Volodymyr
Salamon, Ivan
Oleksiuk, Alina
Mats, Andrii
Powiązania:
https://bibliotekanauki.pl/articles/1839615.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
surface water quality
water security
hydrochemical indicators
level of pollution
resistance degree of pollution
Inhulets river
Opis:
The dynamics of hydrochemical parameters of surface waters from the upper, middle and lower reaches of the river was analyzed. On the basis of the analysis of temporal and spatial monitoring data, a comprehensive assessment of the environmental status of the Inhulets river (Ukraine) waters by hydrochemical indicators was carried out. The study performed a comparative analysis of the river water quality assessment using different methods: an integrated assessment based on the calculation of water pollution indexes, pollution rate. A result of the evaluation of water quality in certain classes: in terms of ammonium ions and BOD5 – III quality class, the water is slightly polluted; phosphate content – V quality class, water is very low in the bottom; according to the content of suspended solids, in phosphates and BOD5 – III class of water quality, water is polluted; by a concentration of chlorides – V class of quality, degree of purity – very dirty; the value of suspended solids and chlorides – III class; in terms of the sulfate content – IV class. In general, the very excessive concentration of substances in the middle course remains stable, the environmental state is poor (quality class IV).
Źródło:
Journal of Ecological Engineering; 2021, 22, 4; 283-295
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Interaction of surface water and groundwater in Nida valley, Poland
Autorzy:
Phan, Cong Ngoc
Strużyński, Andrzej
Kowalik, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/28411660.pdf
Data publikacji:
2023
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
groundwater
interaction
Nida valley
piezometer
surface water
transition zone
Opis:
The study area of the Nida valley was examined to investigate variations in groundwater and surface water levels, as well as the interaction between them. In the valley, there were three branches. The two actives were the Nida River itself and the Smuga Umianowicka branch while the Stara Nida branch was dry during the measurement session. Over a 12-month period from June 2021 to June 2022, 7 monitoring points were equipped with piezometers, comprising 5 groundwater points and 2 surface water points. The monitoring frequency was set to 30 minutes. The results of this research indicate that there are significant differences in the water level at the same observed point at different times. This study demonstrates seasonal changes in both surface water and groundwater levels with higher levels in autumn and winter and lower levels in spring and summer, which are closely tied to the changes in meteorological conditions during the research period, such as precipitation and air temperature. The study results also indicate that during summer and winter at the Nida River and its riparian area, losing stream is the primary process occurring in the studied reach. Conversely, during autumn and spring, the main process is gaining stream. At the human-maintained Smuga Umianowicka branch and in its riparian area, losing stream is the main process during summer and autumn, and gaining stream is the main process during spring. During winter, losing stream and gaining stream processes can occur simultaneously, and neither process takes place mainly.
Źródło:
Journal of Water and Land Development; 2023, 59; 35--43
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Surface water quality assessment of Warri metropolis using water quality indexx
Autorzy:
Godwin, A.
Oborakpororo, O.
Powiązania:
https://bibliotekanauki.pl/articles/11524.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Źródło:
International Letters of Natural Sciences; 2019, 74
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Groundwater and surface water quality assessment near the closed municipal landfill
Autorzy:
Talalaj, I A
Powiązania:
https://bibliotekanauki.pl/articles/123749.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
groundwater
landfill impact
monitoring
pollution
surface wate
Opis:
During the current research the level of groundwater (piezometers P2,P3,P4) and surface water (reservoir B) contamination during landfill operation and after its closure were examined. 113 samples of groundwater and surface water were collected from spring 2005 until spring 2012, i.e. three years after the landfill closure. The samples were analyzed for pH, EC, PAH, TOC and six heavy metals: Cr, Hg, Zn, Pb, Cd, Cu. The heavy metal concentration in groundwater and surface water both during landfill operations and after the landfill closure remained on a similar level and did not exceed permissible levels determined by WHO. Cr was an exception, because its concentra¬tion, during landfill exploitation, reached the value of 0.028 mg/l in surface water. In all examined after the landfill was closed a decrease in the EC value was observed. With the landfill closure the TOC concentration in groundwater increased from 1.8–3.4 to 2.07–3.6 mg/l and the PAH concentration from 0.01 to 0.02 mikrog/l. It may be attributed to a slowdown of decomposition in landfill. An additional PAH source for ground and surface water are surface run-offs form road pavements, yards and parking lots. The remaining high TOC level in a surface reservoir after the landfill closure is also a result of eurotrophisation, which enriches water with organic substances. Seasonal changes in the concentration of pollutants were observed, resulting both from their dilution by atmospheric precipitation (EC, pH, Cd, Cu) and due to washing them out from neighboring areas and enriching with them the analyzed water (Cu, PAH, Hg).
Źródło:
Journal of Ecological Engineering; 2013, 14, 3; 89-98
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zanieczyszczenie wód powierzchniowych województwa koszalińskiego
Surface water pollution in Koszalin province
Autorzy:
Kaniecki, A.
Szulc, S.
Powiązania:
https://bibliotekanauki.pl/articles/2096068.pdf
Data publikacji:
1976
Wydawca:
Poznańskie Towarzystwo Przyjaciół Nauk
Źródło:
Badania Fizjograficzne nad Polską Zachodnią. Seria A:Geografia Fizyczna; 1976, 29; 27-32
0067-2807
Pojawia się w:
Badania Fizjograficzne nad Polską Zachodnią. Seria A:Geografia Fizyczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biomonitoring of surface water by synchronous culture of Chlorella vulgaris algae
Autorzy:
Czaplicka-Kotas, A.
Lodowska, J.
Powiązania:
https://bibliotekanauki.pl/articles/207798.pdf
Data publikacji:
2014
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
biomonitoring
water quality
Chlorella vulgaris
Goczałkowice Reservoir
jakość wody
algi
zbiornik Goczałkowicki
Opis:
A possible use of synchronous culture of Chlorella vulgaris algae has been examined as a shortterm bioassay for water quality control. Experiments were performed with algae cultivated in liquid media prepared with distilled water (control) and with water aliquots sampled from the Goczałkowice Reservoir. It has been demonstrated that changes in the absorbance (at 680 nm) of algae liquid synchronous culture and the rate of algae cellular division may be useful as criteria for water quality control. Changes in the algae metabolic activity are clearly a sign of the July flood and autumnal water quality changes.
Źródło:
Environment Protection Engineering; 2014, 40, 4; 29-40
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Features of the surface water oxygen regime in the Ukrainian Polesie Region
Autorzy:
Aristarkhova, Ella O.
Fedoniuk, Tetiana P.
Romanchuk, Ludmila D.
Latushynskyi, Sergii V.
Kot, Iryna V.
Powiązania:
https://bibliotekanauki.pl/articles/1844315.pdf
Data publikacji:
2021
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
correlation analysis
dissolved oxygen
fish
oxygen regime
pH
seasonal fluctuations
surface water
temperature
toxicity
Opis:
The research analyzed seasonal changes of the oxygen regime and related indicators on the example of water objects of the Ukrainian Polesie Region. The region shows different directions of economic use. Zebrafish (Danio rerio Hamilton–Buchanan) and the Prussian carp (Carassius auratus gibelio Bloch) were used as test objects to investigate survival responses. Dissolved oxygen (DO) concentration in water, pH values and temperatures were determined by standard methods. Based on research results, the main problems were determined pertaining to the oxygen regime of investigated waters, i.e. the increase in temperature and toxicity of the aquatic environment in the summer. A rather dangerous decrease in DO concentration, almost up to the levels of maximum allowable concentration (MAC) (4.10 mg∙dm–3 in group E1 and 6.07 mg∙dm–3 in group E2), was observed in August and it was typical for the reservoirs with a slow water movement. Flowing river waters (group E3) were eliminated due to their better aeration compared to other groups. The correlation analysis based on the presented data revealed a high and average degree of probable correlation between the DO concentration and water temperature, as well as an average degree of correlation with general toxicity determined on sensitive species of D. rerio, and in group E1 on the persistent species C. auratus gibelio as well. The interrelations and equations of the rectilinear regression can be used to predict the oxygen regime of the waters investigated and other surface waters having similar problems.
Źródło:
Journal of Water and Land Development; 2021, 49; 104-110
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Variabilities of Surface Water Quality of Degraded Post-mining Areas in Bytom
Autorzy:
Czajkowska, Aleksandra
Gawor, Łukasz
Powiązania:
https://bibliotekanauki.pl/articles/2069942.pdf
Data publikacji:
2021
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
degraded post-mining area
quality of surface water
reclamation
Opis:
In the paper there is presented an evaluation of variability of surface water quality (reservoirs and watercourses), on the area of degraded post-mining area in Bytom. The physicochemical analysis of water and compared with archival data obtained in 2009 and 2014. There were done analysis of following parameters: reaction, total content of substances dissolved in water, water hardness and the content of: Cl-, SO42-, HCO3-, Ca2+, Mg2+, K+, Na+, NH4+, NO3-, NO2-, PO4- ions as well as Fe and Mn. The examined surface waters were characterised by high content of solutes. Anions were dominated by chlorides, the sodium proved to be the dominating cation, the examined water samples were characterised by high concentration of sulphates. In all analyzed reservoirs, permissible concentrations of chlorides and sulphates were exceeded. In all sample points there was observed a decrease of pH value in long term period, the concentration of chlorides lowered, however concentrations of sulphates increased in the majority of sampling points.
Źródło:
Rocznik Ochrona Środowiska; 2021, 23; 318--331
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of the ozonation impact on adsorption efficiency in surface water treatment
Autorzy:
Adamski, Wojciech
Wisniewski, Jacek
Wolska, Malgorzata
Powiązania:
https://bibliotekanauki.pl/articles/27323981.pdf
Data publikacji:
2023
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Opis:
Organic substances in water, both of natural and synthetic origin, especially their share in water treatment by-products can pose a threat to drinkers. That is why adsorption, as a very effective process of dissolved organic compounds removal is commonly used in surface water treatment systems. For process design and optimization, mathematical models both mechanistic and statistics are created. The results of the investigation of granular activated carbon (GAC) bed adsorption in a pilot plant with a capacity of 3 m3/h have been presented. Two systems have been tested – without ozonation and with ozonation before GAC adsorption. The models of the kinetics of GAC adsorption capacity exhaustion, the model of minimal GAC bed depth (adsorption zone) for assumed process efficiency (C/CO), as well as the model of adsorption zone movement velocity to the bottom of GAC bed, have been created. For the state of adsorptive equilibrium, the first model enables the determination of the isotherm parameters of the Freundlich type, the two other models are used for the calculation of GAC bed run time for the certain bed depth and assumed efficiency. It has been shown that in this case (water pollution, GAC type, pre-treatment) ozonation plays a minor role.
Źródło:
Environment Protection Engineering; 2023, 49, 3; 95--107
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characterization of fouling in ultrafiltration ceramic membrane systems for surface water treatment
Autorzy:
Szaniawska, D.
Szmukala, M.
Powiązania:
https://bibliotekanauki.pl/articles/2071878.pdf
Data publikacji:
2012
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
woda powierzchniowa
ultrafiltracja
membrany ceramiczne
fouling
surface water
ultrafitration
ceramic membranes
Opis:
Research results dealing with ultrafiltration process using surface water supplying and being discharged from the fish hatchery on ceramic membranes with cut-off of 1.0 and 3.0 kDa are presented in the paper. The resistance-in- series model and modified fouling index was employed in the elaboration of results. Estimated values of fouling resistance and indexes characterize the yield of surface water ultrafiltration process. These values are essential for proper design of a larger scale membrane system.
W pracy przestawiono wyniki badań ultrafiltracji wody powierzchniowej zasilającej i opuszczającej wylęgarnię ryb z zastosowaniem membran ceramicznych o cnt-ofj 1,0 i 3,0 kDa. Do opracowania wyników zastosowano model oporów szeregowych oraz zmodyfikowany indeks foulingu. Oszacowane wartości oporów hydraulicznych i indeksów foulingu charakteryzują wydajność ultrafiltracji wody i są podstawą do prawidłowego zaprojektowania instalacji membranowej w większej skali.
Źródło:
Inżynieria i Aparatura Chemiczna; 2012, 6; 387-388
0368-0827
Pojawia się w:
Inżynieria i Aparatura Chemiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Natural Radioactivity Levels on Surface Water of Nemrut Crater Lake (Bitlis, Turkey)
Autorzy:
Kuluöztürk, M.
Doğru, M.
Powiązania:
https://bibliotekanauki.pl/articles/1402433.pdf
Data publikacji:
2015-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
07.85.Nc
92.20.Td
Opis:
Nemrut Crater lake is the world's second largest and largest of Turkey crater lake and its altitude is 2250 m. The aim of this study is to determine radioactivity levels of the lake surface water. In this study water samples were collected from 33 points of the lake surface. The gross alpha and gross beta activity concentrations were determined by using ultra low level α/β counter. The mean gross alpha and beta activity concentrations were found to be 77.69 mBqL¯¹ and 115.36 mBqL¯¹ respectively. Contour maps were produced for gross alpha and beta concentrations of the lake.
Źródło:
Acta Physica Polonica A; 2015, 128, 2B; B-397-B-399
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimizing coagulant choice for treatment technology of surface water for human consumption
Autorzy:
Wolska, M.
Mołczan, M.
Urbańska-Kozłowska, H.
Solipiwko-Pieścik, A.
Powiązania:
https://bibliotekanauki.pl/articles/208212.pdf
Data publikacji:
2018
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
surface treatment
water treatment
coagulation
uzdatnianie wody
koagulacja
uzdatnianie powierzchni
Opis:
Coagulation is a process commonly used in water treatment, especially for surface water. This process aims to effectively remove organic matter [1, 2] especially precursors of oxidation and disinfection by-products [3–5], whose creation potential is related to absorption values at 254 nm (UV254) [6] Due to a very large variability in surface water composition over the course of the year and different contamination levels dependent on water source location, it is important to optimally choose coagulant type and dosage. Such optimization is difficult due to the presence of a large number of coagulants on the market. Świderska-Bróż and Rak [7] and Lee et al. [8] have shown that prehydrolyzed coagulants are less sensitive to changes in temperature and pH of the input water than classic ones. Lin et al. [9] suggest however that the effectiveness of coagulation mainly depends on the type and structure of organic matters present in waters, and to a much lesser degree on pH and temperature.
Źródło:
Environment Protection Engineering; 2018, 44, 4; 131-141
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Removal of Organic Matter From Surface Water Using Coagulants With Various Basicity
Autorzy:
Dąbrowska, L.
Powiązania:
https://bibliotekanauki.pl/articles/123320.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
coagulation
pre-hydrolyzed aluminium salts
organic matter
water
Opis:
Humic substances are a natural admixture of surface water and determine the level of organic pollution of water and colour intensity. Application of coagulation process in surface water treatment allows for decrease turbidity and colour of water, as well as organic matter content. In Poland most drinking water treatment plants use aluminium sulphate as a coagulant. Research works on pre-hydrolyzed coagulants, e.g. polyaluminium chlorides (general formula Aln(OH)mCl3n-m) are also carried out. The aim of this study was to evaluate the effectiveness of the coagulation process using polyaluminium chlorides with different basicity, in reducing the level of pollution of surface water with organic substances. Apart from the typical indicators used to evaluate the content of organic compounds, the potential for trihalomethanes formation THM-FP was also determined. The influence of the type of coagulant (low, medium, highly alkaline) on the efficiency of organic compound removal, determined as total organic carbon TOC, oxidisability OXI, absorbance UV254, was stated. Under the conditions of the coagulation (pH 7.2–7.4, temperature of 19–21°C), the best results were obtained using highly alkaline polyaluminium chlorides PAX-XL19F, PAX-XL1905 and PAX-XL1910S, decrease in TOC and OXI by 43–46%, slightly worse – 40–41% using low alkaline PAX18. Using the medium alkaline coagulants PAX-XL61 and PAXX-XL69, 30–35% removal of organic matter was obtained. Despite various effects of dissolved organic carbon removal, depending on the used coagulant, THM-FP in purified water did not differ significantly and ranged from 10.0 to 10.9 mgCHCl3 m-3. It was by 37–42% lower than in surface water.
Źródło:
Journal of Ecological Engineering; 2016, 17, 3; 66-72
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of the surface water quality in the Szreniawa River catchment area
Autorzy:
Kowalczyk, Agnieszka W.
Kopacz, Marek
Powiązania:
https://bibliotekanauki.pl/articles/1844411.pdf
Data publikacji:
2020
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
composition of agricultural crops
nitrogen concentration
phosphorus concentration nitrogen load
phosphorus load
precipitation
total suspended solids
Opis:
The intensive agricultural use of the land affects both quantity and quality of river water in the catchment area. Such impact is visible also in the Szreniawa River catchment in the Małopolskie Voivodeship. The combination of intensive plowing and soil susceptibility to water erosion are the main causes of soil and nutrients depletion during the heavy rainfall. The aim of the study is to determine changes in the water quality in the Szreniawa River catchment compared to the agriculture use and precipitation level. The quality of surface water has been analysed in the river catchment area in three sampling points. The concentration of the total suspended soils in the samples collected after heavy rainfall in August 2017 reached a value of 837 mg·dm–3. The average concentrations of N-NO3 in the years of 2016–2019 ranged from 0.16 to 13.46 mg·dm–3, with the highest values in the summer (up to 13.46 mg·dm–3). The concentration of N-NH4 and P-PO4 in the Szreniawa water was affected by precipitation. The highest value of average concentration of N-NH4 3.00 mg·dm–3 was recorded in the autumn of 2019 in the middle section of the river. The highest value of P-PO4 0.90 mg·dm–3 was recorded in the autumn of 2019 mostly due to water erosion of the loess areas. Erosion has been caused by the short-term heavy rainfall. As a result, suspended solids, soluble and insoluble phosphorus compounds leaked to the river.
Źródło:
Journal of Water and Land Development; 2020, 47; 105-112
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The influence of impurities on the surface water of the Upper Biebrza Basin
Autorzy:
Malinowski, Łukasz
Skoczko, Iwona
Powiązania:
https://bibliotekanauki.pl/articles/1179544.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Upper Biebrza Basin
impurities
surface water
Opis:
The paper "The influence of impuriries on the surface water of the Upper Biebrza Basin" presents description of areas, environmental elements and the description of the potential pollution sources in Upper Biebrza Basin. The article presents a short description of the municipalities, located in the immediate vicinity of the Biebrza River. They are: Lipsk, Sztabin and Nowy Dwor. The Biebrza Valley is an area of great natural significance, mainly due to its largest wetlands in Central and Western Europe. Their well-being depends mainly on the hydrologic conditions. Biebrza National Park and the area of the Upper Biebrza Basin, have been reported by Poland to the the Ramsar Convention, NATURA 2000, BirdLife International classification. Therefore, water, as a basic element of shaping the whole Biebrza Valley habitat is also protection subject, including constant monitoring of water quality. The aim of the article was to characterize the Upper Biebrza Basin which covers the area between the Sztabin Village and the Polish border with Belarus.
Źródło:
World Scientific News; 2017, 76; 197-208
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Metal pollution of surface water from Wielkopolska region
Zanieczyszczenie metalami wód powierzchniowych Wielkopolski
Autorzy:
Perczak, A.
Waśkiewicz, A.
Goliński, P.
Powiązania:
https://bibliotekanauki.pl/articles/389766.pdf
Data publikacji:
2015
Wydawca:
Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:
heavy metals
surface waters
Wielkopolska
metale ciężkie
wody powierzchniowe
Opis:
Polish water resources in comparison to other European countries are small. It is one of the factors leading to increased interest in monitoring tests for their quality. Heavy metals are major water pollutants in Poland. The aim of this study was to determine seasonal variability in concentrations of cadmium, lead, zinc and copper in various reservoirs and water courses in the Wielkopolska region. Water samples were collected from lakes, large and small rivers and drainage ditches. These water bodies differ in land use in the surrounding. These were mostly rural. The study was conducted during the growing season from May to December 2012. Quantitative analysis of heavy metals was performed on the AA spectrometer Agilent 280Z. The results showed high seasonal variation in heavy metal contents in different water bodies. The concentrations of cadmium and zinc mainly depend on the date of discharge to water. Lead concentrations were caused by emissions and depended mainly on cultivation measures in fields. The highest concentration of copper was observed in the lakes, which could be due to the use of compounds that eliminate algal blooms. Under Polish law, all water bodies are classified into water quality classes I or II intended for drinking. Living conditions for cyprinids and salmonids were satisfactory in all the locations.
Zasoby wodne Polski w porównaniu do innych krajów europejskich są małe. Jest to jeden z czynników powodujących wzrost zainteresowania badaniami monitoringowymi dotyczącymi ich jakości. Jednym z istotnych zanieczyszczeń są metale ciężkie. Celem pracy było określenie sezonowej zmienności stężeń kadmu, ołowiu, cynku oraz miedzi w różnych zbiornikach i ciekach wodnych z terenu Wielkopolski. Brano pod uwagę takie źródła poboru jak jeziora, duże i małe rzeki oraz rowy melioracyjne. Miejsca poboru charakteryzowały się zróżnicowaniem użytkowania terenów występujących wokół nich. Były to głównie tereny rolnicze. Badania przeprowadzono w sezonie wegetacyjnym od maja do grudnia 2012 roku. Analizę ilościową metali ciężkich wykonano na spektrometrze 280Z AA firmy Agilent. Uzyskane wyniki wykazały dużą sezonową zmienność występowania metali ciężkich w różnych zbiornikach wodnych. Stężenie kadmu i cynku zależało głównie od terminu zrzutu ścieków do wód. Poziom stężeń ołowiu ukształtował się w wyniku emisji spalin i zależały głównie od ingerencji maszyn rolniczych na polach uprawnych. Najwyższe stężenia miedzi odnotowano w jeziorach, co mogło być spowodowane zastosowaniem związków eliminuj ących zakwity glonów. Zgodnie z polskim prawem, wszystkie miejsca badawcze zostały zaklasyfikowane do I lub II klasy jakości wód przeznaczonych do picia. We wszystkich miejscach były spełnione warunki do życia ryb karpiowatych i łososiowatych.
Źródło:
Ecological Chemistry and Engineering. A; 2015, 22, 3; 285-296
1898-6188
2084-4530
Pojawia się w:
Ecological Chemistry and Engineering. A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena jakości wód powierzchniowych na terenie Łodzi
Surface water quality assessment in Lodz
Autorzy:
Krężel, S.
Wira, K.
Olejnik, D.
Powiązania:
https://bibliotekanauki.pl/articles/412665.pdf
Data publikacji:
2018
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Skórzanego
Tematy:
woda
wody powierzchniowe
klasy jakości
parametry fizyko-chemiczne
water
surface water
quality classes
physico-chemical parameters
Opis:
Wody powierzchniowe są czynnikiem krajobrazowym, rekreacyjnym, a także środowiskiem bytowania organizmów żywych i dlatego niezwykle ważne jest przeprowadzanie badań w celu określenia ich jakości i oceny wpływu oddziaływania na środowisko oraz życie człowieka. Na terenie Łodzi znajduje się wiele zbiorników pochodzenia naturalnego, jak i antropogenicznego o różnorodnym przeznaczeniu - od krajobrazowego, poprzez wędkarskie, aż po kąpieliskowe. Wody na terenie Łodzi charakteryzują się dużą zmiennością składu fizyko-chemicznego, jednakże pod względem jakości, najlepsze umiejscowione są w północnej i wschodniej części Łodzi.
Surface waters are a landscaping and recreational factor, as well as an environment of living organisms, and therefore it is extremely important to carry out research in order to determine their quality and assess the impact on the environment and human life. There are many natural and anthropogenic reservoirs in Lodz for various purposes-from the landscape, through fishing, bathing. Water in Lodz are characterized by high variability of chemical and physical composition, however, in terms of the quality of the best are located in the northern and eastern parts of the city.
Źródło:
Technologia i Jakość Wyrobów; 2018, 63; 85-94
2299-7989
Pojawia się w:
Technologia i Jakość Wyrobów
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Temperature and salinity of surface water at a coastal measuring point, Isbjörnhamna, Spitsbergen
Autorzy:
Swerpel, Sławomir
Powiązania:
https://bibliotekanauki.pl/articles/2053282.pdf
Data publikacji:
1987
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Arctic
Spitsbergen
sea water
temperature and salinity
Źródło:
Polish Polar Research; 1987, 8, 1; 57-64
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Klasyfikacja jakości wód powierzchniowych w Polsce
Classification of surface water quality in Poland
Autorzy:
Czaban, S.
Powiązania:
https://bibliotekanauki.pl/articles/60082.pdf
Data publikacji:
2008
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
wody powierzchniowe
jakosc wody
klasyfikacja wod
klasyfikacja jakosciowa
Ramowa Dyrektywa Wodna
Polska
Opis:
Od wielu lat istnieje w naszym kraju system monitoringu i oceny jakości wód powierzchniowych. Wyspecjalizowane instytucje (WIOŚ, ZUS) publikują coroczne oceny stanu jakości wód. Stosowane przez poszczególne województwa sposoby oceny były różne. Dopiero wdrażanie Ramowej Dyrektywy Wodnej wymusiło stosowanie jednolitych procedur oceny. Dyrektywa ta, stawiając głównie na elementy jakości biologicznej wód, zmienia zasadniczo sposoby kwalifikacji. W pracy przedstawiono wybrane aspekty Ramowej Dyrektywy Wodnej, a także sposoby kwalifikacji jakości wód powierzchniowych w Polsce w ostatnich 25 latach oraz planowane zamierzenia w tym zakresie.
Over a number of years the quality of surface water in Poland has been monitored and assessed. Water quality assessments are published every year by specialized institutions. The criteria of assessment used by different regions (voivodships) have not been standardised. The Water Frame Directive has enforced the application of uniform assessment procedures. This directive emphasises mainly the biological quality of water and essentially changes the previous classification methods. In the paper the author has described some aspects of Water Frame Directive, the ways the surface water had been classified over the past 25 years as well the projected aims in this area.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2008, 09
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Changes in surface water microflora caused by discharge of purified sewage into rivers
Autorzy:
Godela, Agnieszka
Lewańska, Monika
Myga-Nowak, Magdalena
Powiązania:
https://bibliotekanauki.pl/articles/1179554.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Sewage
river
sewage treatment plant
sewers
water microflora
Opis:
Progressive environmental degradation results in an increase in the number of waters that do not meet the standards in force. Surface waters are particularly vulnerable to pollution because they are receivers of purified water and agricultural or industrial wastewater flow. In addition, the local increase in temperature and the increase amount and availability of nutrients associated with wastewater discharged improves the microbial growth and thus increase their quantity. The treated sewage must meet certain requirements regarding their physicochemical and biological parameters. However, the regulations do not require to check microbiological quality by treatment plants, so the purpose of the study was to determine the impact of discharge of purified wastewater by the "Warta" sewage treatment plant down to Warta river. The study was conducted in 2008-2016 at three collection points near the place of discharge of purified sewage from Warta SA sewage treatment plant. It has been demonstrated that the process of sewage treatment is not enough in terms of microbiological pollution because the water samples collected at the points behind the discharge site of the effluent into the river were characterized by increased abundance and microbiological diversity.
Źródło:
World Scientific News; 2017, 75; 26-32
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Implicit versus explicit finite volume schemes for extreme, free surface water flow modelling
Autorzy:
Szydłowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/241313.pdf
Data publikacji:
2004
Wydawca:
Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
Tematy:
general scheme implicit in time
finite volume method
extreme flows
Opis:
One explicit and three implicit finite volume method schemes of the Roe type are presented in the paper. The properties and applicability of these methods for modelling unsteady, rapidly varied, open channel flow are investigated. The schemes are used for numerical simulation of one-dimensional extreme flow described by de Saint-Venant equations. The computational results are compared with each other and an analytical (exact) solution to an idealized dam-break problem. The classical versions of general scheme implicit in time - fully implicit and trapezoidal scheme - are not restricted by a stability condition, like an explicit one, however they add some numerical diffusion and dispersion errors to the solution. The modification of parameter , originally proposed for a box scheme of finite difference method, has improved computational properties of the general one-step implicit scheme. This version of finite volume scheme of the Roe type implicit in time can be recommended for modelling and simulation of transient flows in storm sewers and open channel networks.
Źródło:
Archives of Hydro-Engineering and Environmental Mechanics; 2004, 51, 3; 287-303
1231-3726
Pojawia się w:
Archives of Hydro-Engineering and Environmental Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of the content of pollutants in surface water in the commune of Ostrzeszów
Autorzy:
Duszczyk, Jakub
Powiązania:
https://bibliotekanauki.pl/articles/100911.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
surface waters
eutrophication
water quality
water composition
agriculture
Ostrzeszów commune
Opis:
This paper presents the results of physical and chemical tests of surface water samples taken from the areas of the Ostrzeszów Commune, which is part of the Ostrzeszów County, located in the southern part of the Wielkopolska Province. The Ostrzeszów commune is included in the urban-rural areas. The physicochemical analysis of surface waters covered samples taken from seventeen measurement and control points from places as accessible as possible. The water quality was assessed in accordance with the applicable regulations of the Minister of the Environment. Surface waters were characterized by typical variability for agricultural areas, i.e. slightly alkaline, pH in the range of 7.5-8.45; specific conductivity in the range of 246-512 μS/cm; turbidity in the range of 1.7-10.5 NTU; total hardness in the range of 1.6-3.2 mmol∙dm-3 Ca2+, Mg2+; alkalinity in the range of 66-142 mg∙dm-3 CaCO3 ; chloride content in the range of 19-47 mg/dm3 Cl-; content of biogenic compounds, ie: nitrites in the range of 0.02-0.36 mg∙dm-3 N-NO2 - ; nitrates in the range of 0.05 - 4,9 mg∙dm-3 N-NO3 - ; ammonium ion in the range of 0.04-0.94 mg∙dm-3 N-NH4 + ; the content of orthophosphate in the range of 0.11-1,56 mg∙dm-3 P-PO4 3-. The content of metals, i.e. manganese Mn, Fe iron, was characterized by high variability depending on the location of the sampling site (Mn manganese in the range of 0.006-0.22 mg∙dm-3, Fe iron in the range of 0.02-0.28 mg∙dm-3, potassium K in the range of 10-13 mg∙dm-3). In all analyzed samples, the presence of copper Cu, nickel Ni and zinc Zn was not detected. The quality of surface waters of the Ostrzeszów commune, in addition to natural hydrological factors, is affected by areas covered by agricultural activity and the evident lack of developed sewerage system in the analyzed sampling regions. The research carried out at the turn of the year showed that the use of artificial and natural fertilizers in cultivated areas contributed to the increase in the content of biogenic and mineral substances in surface.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2019, III/1; 291-306
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Suitability of surface water for irrigation in the Maffragh basin, North-East of Algeria
Autorzy:
Boubguira, Selwa
Zouini, Derradji
Lamine, Sayad
Dali, Nawel
Powiązania:
https://bibliotekanauki.pl/articles/1844368.pdf
Data publikacji:
2021
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
irrigation
Maffragh basin
northeastern Algeria
rain-fed agriculture
surface water
Opis:
Water quality is an environmental priority for irrigation in rainfed agriculture. Recently, water quality has been affected by the uncontrolled disposal of wastewater, the use of chemical fertilizers in agriculture and, most significantly, by the excessive exploitation of water resources during the low season. The basin of the Maffragh in the Algerian north-east real is fed by two main rivers: Wadi El Kebir East and Bounnamoussa. From its source, the stream is continually contaminated with domestic and agricultural discharges through the tributaries causing a significant deterioration in water quality. In order to know the current state of water quality in the Maffragh basin and to determine its suitability for irrigation without any prior treatment, research has been conducted in the two streams at representative sampling points in catchment areas used for irrigating crops. To assess the quality of water and detectable compounds monitoring, laboratory methods are used. The various volumetric and colorimetric assays were carried out according to Jean Rodier. Organic parameters such as nitrites, ammonium and phosphates, were measured using a UV/VIS 6705 JENWAY spectrophotometer, at wavelengths of 543 nm, 630 nm and 880 nm respectively for nitrites, ammonium and phosphates. The BOD5 and COD parameter was measured using a DIN EN 1899-1-H51 spectrophotometer and DIN ISO15705: 2002 spectrophotometer. The performed analyses on conductivity shows oscillating values ranging between 425 and 495 μS∙cm–1 for January 2018, while for the low water level of July 2018 the conductivity varies between 433 and 796 μS∙cm–1; this parameter is determinant for water quality assessment and its use for irrigation. Beside the conductivity test, the Riverside–Wilcox diagram was applied, to combine conductivity and sodium absorption rate (SAR). The obtained results of the two seasons show satisfactory results in the applicability of the water to irrigate in the basin.
Źródło:
Journal of Water and Land Development; 2021, 48; 94-98
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of the quality of surface water from selected area of active oil exploitation
Autorzy:
Chruszcz-Lipska, K.
Knapik, E.
Rychlicki, S.
Stopa, J
Powiązania:
https://bibliotekanauki.pl/articles/299237.pdf
Data publikacji:
2015
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
surface water
oil exploitation
quality of water
chemistry of water
environment protection
Opis:
In this work, the studies of various physico-chemical parameters of surface waters originated from the selected area of oil exploitation in the south of Poland are presented. The water samples were collected from streams and ponds or directly from surface tanks situated in the vicinity of operating wells. The observed values of different parameters like pH, odór, color, turbidity, electroconductivity, concentration of sulfate, chloride, nitrate, iron, calcium, magnesium, ammonium, alkanity, dissolved oxygen or petroleum contamination of samples were compared with standard values recommended by the WHO (World Health Organization) and the relevant Polish Regulation. Preliminary studies show that investigated surface waters are slightly affected by anthropogenic pollution. The main two sources of contamination of water from the study area are agriculture and mining industry.
Źródło:
AGH Drilling, Oil, Gas; 2015, 32, 1; 65-76
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-25 z 729

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