Temat: water pollution - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The determination of microplastic contamination in freshwater environments using sampling methods : A case study
Autorzy:: Karaban, Kamil
Poniatowska, Agnieszka
Kaliszewicz, Anita
Winczek, Michał
Ilieva-Makulec, Krassimira
Romanowski, Jerzy
Powiązania:: https://bibliotekanauki.pl/articles/27312655.pdf
Data publikacji:: 2023
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: fraction of microfibres
mesoplastic
microplastic contamination
water pollution
Opis:: We compared different net sampling methods for microplastic quantitative collection by sampling different water volumes with nets of different mesh sizes. Sampling covered freshwater lake and reservoir with a significant degree of eutrophication located in Central Poland. The fibres were the main type of plastic collected from sampling sites and constituted 83% of all microplastic particles. Fibres of 700-1900 μm dominated in the samples. The size of mesh affected the amount of fibres collected. Small fibres of 10-200 μm in length were collected using only a fine net of 20 μm mesh size. The total amount of fibres depended on sample volumes; concentrations of microplastics were higher for smaller water volumes. It is likely that clogging with phytoplankton and suspended particles reduced the filtration capacity of the finest nets when large volumes were sampled, which led to an underestimation of microplastic. To our knowledge, this is the first study to provide evidence that the amount of small microfibres depends on mesh size and that the total microplastic abundance in freshwaters in Poland depends on the sample volume. We suggest sampling rather larger than smaller water volumes to assess the level of microplastic contamination more accurately, but clogging, which reduces the filtration capacity of finest nets, should be taken into account when eutrophic freshwater environments are studied.
Źródło:: Journal of Water and Land Development; 2023, 57; 140--146
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The influence of permanent grasslands on nitrate nitrogen loads in modelling approach
Wpływ trwałych użytków zielonych na ładunek azotu azotanowego w świetle badań modelowych
Autorzy:: Śmietanka, M.
Powiązania:: https://bibliotekanauki.pl/articles/293344.pdf
Data publikacji:: 2014
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: land use
modelling
nitrogen
permanent grasslands
SWAT
water pollution
azot
modelowanie
trwałe użytki zielone
użytkowanie ziemi
Opis:: The water pollution in areas with intensive agriculture is growing rapidly. Computer model is a tool which can help in finding solutions for water pollution reduction and help in creation of catchment management plans. In this research the SWAT model (Soil and Water Assessment Tool) was used to test the influence of introduction of permanent grasslands into the catchment on nitrate nitrogen load in surface water. Small catchment of upper Zgłowiączka River in central Poland with intensive agriculture was chosen as a test site. Model was fed with data about land use, soils, weather, elevation and management practices and calibrated and validated using flow data and nitrate nitrogen loads data. Then 2 scenarios with land use change were tested. A part of arable land was changed into permanent grasslands. The results show that permanent grasslands are effective in reducing nitrate nitrogen load. The load was reduced by 19% when permanent grasslands constituted 10% of arable land and by 38% with permanent grasslands taking up 20% of arable land.
Zanieczyszczenie wody substancjami biogennymi pochodzenia rolniczego zwiększa się na obszarach intensywnie rolniczo użytkowanych. Wykorzystując model komputerowy, można wskazać skuteczne sposoby zmniejszenia ilości biogenów spływających do wód. W niniejszych badaniach wykorzystano model SWAT do oceny wpływu wprowadzenia trwałych użytków zielonych do zlewni na ładunek azotu w cieku. Badania przeprowadzono w małej zlewni rolniczej na Kujawach – górnej Zgłowiączki. W ramach badań symulowano wprowadzenie na obszar zlewni trwałych użytków zielonych zajmujących 10 i 20% powierzchni gruntów ornych. W wyniku modelowania stwierdzono, że znacząco zmniejszył się ładunek azotu w cieku w punkcie zamykającym zlewnię. W warunkach 10-procentowego udziału trwałych użytków zielonych odnotowano zmniejszenie ładunku od kilku procent do ponad 20. Gdy udział ten wynosił 20%, zmniejszenie to wyniosło od kilku procent do ponad 40% ładunku wyjściowego.
Źródło:: Journal of Water and Land Development; 2014, 21; 63-70
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Impact of Kishnica mines on pollution of the Graçanka River and water wells nearby, Kosovo
Autorzy:: Kadriu, Sadija
Sadiku, Milaim
Kelmendi, Mensur
Aliu, Mehush
Mulliqi, Ismet
Hyseni, Arbër
Powiązania:: https://bibliotekanauki.pl/articles/1844372.pdf
Data publikacji:: 2021
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: mines
pollution
Graçanka River
water quality
water wells
Opis:: Mining is an important economic activity in Kosovo. Artana and Kishnica mines are a part of the Trepça industrial complex and the increased exploitation of deposits has resulted in undesirable impact on the environment around the mining sites. More specifically, the mining activity caused water pollution. The aim of the study was to assess the physico-chemical parameters and presence of heavy metals (Ni, Zn, As, Cd, Pb, Cr, Mn, Fe) in water samples of the Graçanka River and household wells in the area. The Inductively Coupled Plasma-Mass Spectrometer (ICP-MS) was used to determine metal concentrations. Samples were collected from five sites along the Graçanka River and from four private water wells during a period from September to November 2019. Concentrations of heavy metals in the Graçanka River were as follows Mn (24–1203 μg∙dm–3), Fe (11–785 μg∙dm–3), Ni (4–299 μg∙dm–3), Pb (2–22 μg∙dm–3), As (1–5 μg∙dm–3), Zn (344–1646 μg∙dm–3), Cr (1–2 μg∙dm–3) and Cd (<1 μg∙dm–3). The well waters were polluted by multiple metals (Mn > Fe > Ni > Pb) with concentrations of Mn 1834–36089 μg∙dm–3, Fe 158–3535 μg∙dm–3, Ni 82–1882 μg∙dm–3, Pb 5–45 μg∙dm–3, As 2–19 μg∙dm–3, Cd 1–12 μg∙dm–3, Zn 979–23474 μg∙dm–3 and Cr 1–2 μg∙dm–3. The pollution has been caused by industrial (mining-related) and urban discharges. The contamination originates from the release of flotation process waste and from the leaching of the tailings dam. Most probably, rainwater has washed contaminants into the aquifers and the Graçanka River. River water is not suitable for irrigation and well water is not suitable for consumption or irrigation. Wastewater should be treated before discharge and the tailings area should be remediated in order to stop the pollution.
Źródło:: Journal of Water and Land Development; 2021, 48; 16-21
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Phosphorus load concentration in tropical climates reservoir for each water quantity class
Ładunek fosforu i zdolność do samooczyszczania zbiorników wodnych w warunkach tropikalnych według klas ilości wody
Autorzy:: Marselina, M.
Burhanudin, M.
Powiązania:: https://bibliotekanauki.pl/articles/292977.pdf
Data publikacji:: 2018
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: phosphorus pollution
pollution load
reservoir
water quality
jakość wody
ładunek zanieczyszczeń
zanieczyszczenie fosforem
zbiornik
Opis:: Saguling Reservoir has a potential to be used as a raw water supply for Bandung Metropolitan Area (BMA), with the discharge of 1.622 dm·s^–1. However, further studies are needed to ensure that the water quality is in accordance with the government regulations. This study shows that the reservoir’s P concentration was 315.0 mg·m^–3 on average in 1999–2013. This value only meets the class III of government standards of water quality for the cultivation of freshwater fish, livestock, and to irrigate landscaping, but does not belong to the class I standard of 200 mg·m^–3 for drinking water. The total-P concentration in wet, normal, and dry years was 796.3, 643.8, and 674.8 mg·m^–3, respectively. The pollution load was highest in wet years due to the high levels of sediment. The pollution load of the reservoir did not exceed the class III classification of 29 405.01 kg·year^–1. The pollution load in wet, normal, and dry years was 38 790.1, 25 991.9, and 23 929.0 kg·year^–1, respectively. The phosphorus pollution is caused by the use of floating net cages in the reservoir, which makes it difficult to meet the standards. In wet years, the pollution load was higher than in normal and dry years. The P load could be higher in the wet season due to dilution and could probably decrease the pollutant concentration in the reservoir.
Zbiornik Saguling z wielkością odpływu sięgającą 1622 dm³·s^–1 może być źródłem wody dla zespołu miejskiego Bandung. Niezbędne są jednak badania, by stwierdzić, czy jakość wody spełnia krajowe normy. W przedstawionych badaniach wykazano, że średnie stężenie fosforu w latach 1999–2013 wynosiło 315,0 mg·m^–3. Ta wielkość mieści się w III klasie rządowych norm i jest odpowiednia do chowu i hodowli ryb, pojenia zwierząt i nawadniania. Nie spełnia jednak norm I klasy (200 mg·m^–3) dla wody pitnej. Stężenie całkowitego fosforu w latach wilgotnych, normalnych i suchych wynosiło odpowiednio 796,3, 643,8, i 674,8 mg·m^–3. Ładunek zanieczyszczeń był najwyższy w latach wilgotnych z powodu dużej ilości osadów dennych. Ładunek zanieczyszczeń doprowadzanych do zbiornika nie przekraczał normy dla III klasy równej 29 405,01 kg·rok^–1.W latach wilgotnych, normalnych i suchych ładunki te wynosiły odpowiednio 38 790,1, 25 991,9 i 23 929.0 kg·rok^–1. Zanieczyszczenie fosforem spowodowane jest używaniem pływających sadzów na ryby, co utrudnia osiągnięcie norm jakościowych. Ładunek fosforu mógł być wyższy w deszczowej porze roku z powodu dużej ilości wody, co prawdopodobnie było przyczyną mniejszego stężenia zanieczyszczeń w zbiorniku.
Źródło:: Journal of Water and Land Development; 2018, 36; 99-104
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Assessment of surface water pollution in Western Bug River within the cross-border section of Ukraine
Autorzy:: Gopchak, Igor
Kalko, Andrii
Basiuk, Tetiana
Pinchuk, Oleg
Gerasimov, Ievgenii
Yaromenko, Oksana
Shkirynets, Viktor
Powiązania:: https://bibliotekanauki.pl/articles/292646.pdf
Data publikacji:: 2020
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: pollutants
pollution coefficient
river basin
surface water
the Western Bug River
water quality
Opis:: Monitoring of surface waters within the transboundary section of the Western Bug River showed, that during 2014–2018, a significant excess of the maximum permissible concentration (MPC) was observed for some substances for fish ponds. As a result of this, the water in the river for these substances was rated as “dirty” in terms of purity and corresponded to water quality class IV, namely: phosphorus was observed to exceed the MPC at the observation point Ambukіv village in 2015 (9.7 times), for manganese – an excess of the MPC at the observation point Ambukіv village in 2018 (9.7 times) and in point Zabuzhzhia village in 2014 (7.9 times), 2015 (8.0 times), 2017 (7.1 times), 2018 (8.3 times); for the total iron – the exceeding of MPC at the observation point Ambukіv village in 2016 (5.95 times) and 2017 (6.13 times); at the observation point Ustilug town in 2016 (5.23 times); in the observation point Zabuzhzhia village in 2016 (9.44 times) and 2017 (5.27 times). The assessment of the surface waters based on the determination of the pollution factor showed that during the study period their quality did not deteriorate but did not meet the norms. In general, surface waters of the river correspond to the second class of quality and are characterized as “poorly polluted” waters by the level of pollution.
Źródło:: Journal of Water and Land Development; 2020, 46; 97-103
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Influence of the manner of water discharge from dam reservoirs on downstream water quality
Autorzy:: Cieśla, Maksymilian
Gruca-Rokosz, Renata
Powiązania:: https://bibliotekanauki.pl/articles/2203542.pdf
Data publikacji:: 2023
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: dam
environmental pollution
organic matter
retention reservoir
suspended sediment
water quality
water resources
Opis:: The study was carried out in the area of three dam reservoirs: Blizne and Maziarnia (Voivodeship of Podkarpackie) and Nielisz (Voivodeship of Lublin). The main parameter differentiating the reservoirs was the water retention time and the manner of water discharge from the reservoirs. Three test sites were designated in the area of each reservoir: in the river zone of the reservoir, in the central part of the reservoir, and near the reservoir dam. At these sites, the concentrations of suspended sediment in the water and the content of organic matter in it, the concentrations of total phosphorus and total nitrogen, as well as chlorophyll a were monitored. In addition, two control sites were established: on the river upstream of the reservoir and on the river downstream of the dam, respectively. At these points, the concentrations of suspended sediments in the water and their organic matter content were recorded. The obtained results of the study and multivariate analysis of the data showed that morphometric parameters (including water retention time) of reservoirs and the method of water discharge influence water quality in downstream rivers. It was found that by using lower discharge and ensuring a sufficiently long retention time of water in the reservoir, it is possible to effectively limit the negative aspects of hydrotechnical structures’ impact on the natural environment. In practice, the observed relationships may constitute an important and missing link in the aspect of minimising undesirable side effects of this type of hydrotechnical objects.
Źródło:: Journal of Water and Land Development; 2023, 56; 91--101
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Physicochemical characterization of synclinal spring water of Taoura, region of Souk Ahras – North East Algeria
Autorzy:: Bouhafs, Fatma
Laraba, Abdelaziz
Powiązania:: https://bibliotekanauki.pl/articles/1841971.pdf
Data publikacji:: 2021
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: chemistry
principal component analysis
PCA
pollution
springs
Taoura
water quality
Opis:: The springs of the Taoura region flow from a syncline shaped structure. All resources in the region were mobilized as a result of increased demand. However, the development of anthropic activities and population growth in the area pose risk for groundwater. Analytical results obtained from a series of samplings in November 2017–April 2018, express the quality of water suitable for the irrigation of agricultural land. The highest values are recorded in April 2018 at 20.5 to 21.6°C and pH of 8.0 to 8.2. The study recorded high electrical conductivity from 1390 to 1495 μS∙cm–1 and TDS from 1270 to 1500 mg∙dm–3 in November 2017, which shows important mineralization that characterizes spring water. Physical parameters were measured in situ using a HORIBA multi-parameter probe. Chemical analyses were carried out using NFT 90-005 titration, and nitrogen parameters by DIN 38405-D92 spectrophotometry. Maximum levels of nitrates and phosphates were recorded at 228 and 18.4 mg∙dm–3 respectively. The principal component analysis (PCA) showed a good correlation of the November 2017 period with mineralization parameters. Moreover, there is a strong correlation between the wet period and pollution factors. The two methods of analysis has allowed to distinguish three groups of geochemical water types: a bicarbonate calcium group typical for waters having transited in carbonate horizons. A second chloride calcium group shows basic exchange between water and clay levels, and the third chloride bicarbonate calcium group reveals an enrichment in calcium and chloride, which reflects water circulation with an exchange of the carbonated and evaporitic sedimentary rock matrix.
Źródło:: Journal of Water and Land Development; 2021, 50; 27-37
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: The use of phytoplankton communities for assessment of water quality in the Wadaslintang Reservoir in Indonesia
Autorzy:: Piranti, Agatha S.
Wibowo, Dwi N.
Powiązania:: https://bibliotekanauki.pl/articles/946893.pdf
Data publikacji:: 2020
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: algae
pollution level
Shannon-Wiener index
Storet index
water quality
Opis:: The use of phytoplankton as an indicator of water pollution is a promising tool for assessment of water quality. The purpose of this study was to determine whether diversity indices, including the species richness and diversity of phyto-plankton, could be used for reliable assessment of water quality in the Wadaslintang Reservoir in Indonesia. Surveys were conducted monthly at eight sites, from July 2019 to October 2019. Phytoplankton was collected during the day at 10:00 until approximately 15:00 in the euphotic zone. The parameters investigated were species richness and the abundance of phytoplankton, as well as water quality parameters listed in Government Regulation Number 82 of 2001. The level of pollution was represented biologically by the Shannon–Wiener diversity index and physicochemically by the STORET (storage and retrieval of water quality data) index. Moreover, the two indices were compared to determine whether a particular diversity index was more effective for assessment of this reservoir. The results showed that during the dry season, 22 taxa of phytoplankton were present, belonging to Cyanophyta, Chlorophyta, Chrysophyta, and Euglenophyta. During the wet season, 29 taxa were found, belonging to Cyanophyta, Chlorophyta, and Chrysophyta. Based on the Shannon-Wiener index and STORET index, water quality was better during the wet season than during the dry season. The results of water quality assessment using both indices were consistent, but the diversity index was a more sensitive indicator of pollution levels. Therefore, the Shannon–Wiener index is a useful tool for assessment of water quality in the Wadaslintang Reservoir.
Źródło:: Journal of Water and Land Development; 2020, 46; 170-178
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Physical-chemical characterisation of the urban wastewater - case study of the Boumerdes region, North - Algeria
Autorzy:: Ait Baziz, Djalal
Maazouzi, Abdelhak
Lachache, Salih
Powiązania:: https://bibliotekanauki.pl/articles/2174372.pdf
Data publikacji:: 2022
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: Boumerdes
physical-chemical parameters
pollution
urban wastewater
water quality standards
Opis:: The objective of this study is to assess the physical-chemical quality of urban wastewater from the city of Boumerdès, in northern Algeria with regard to the threshold values for irrigation or their discharge in aquatic ecosystems. Five sampling points were carried out of the study area in April 2017. The results obtained of physical-chemical parameters indicating pollution show that the water course is exposed to pollution mainly of organic origin. It’s expressed by a high maximum value according to Algerian and World Health Organisation standards: chemical oxygen demand (COD 886 mg O2∙dm-3), biochemical oxygen demand (BOD5 490 mg O2∙dm-3), nitrate (NO3- 73.09 mg∙dm-3), nitrite (NO2- 6 mg∙dm-3), ammonium (NH4+ 23 mg∙dm-3) and phosphates (PO43- 7.3 mg∙dm-3). The COD to BOD5 rate of 1.8, show that the effluents must be treated before being discharged into the receiving environment. However, it is lower than 2, which makes them easily biodegradable and can be treated by a biological system such as a natural lagoon. It shows also a diversified origin of the pollution. It is predominantly domestic origin, it could have an adverse effect on public health, presenting a risk of environmental eutrophication, contamination of soil and water resources. The physical-chemical characterisation of the urban wastewater shows that they are quite loaded and prezent a pollution in nitrogenous compounds, a treatment is requested before the direct discharge to the receiving environment or their reuse in the irrigation.
Źródło:: Journal of Water and Land Development; 2022, 54; 243--250
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: The function of permanent grasslands in water resources protection
Funkcje trwałych użytków zielonych w ochronie zasobów wodnych
Autorzy:: Jankowska-Huflejt, H.
Powiązania:: https://bibliotekanauki.pl/articles/293320.pdf
Data publikacji:: 2006
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: bilans wodny
jakość wody
ograniczanie zanieczyszczeń
użytki zielone
diffuse pollution
grassland
water balance
water quality
Opis:: Permanent grasslands - according to the Water Framework Directive - are typical water related ecosystems so they largely affect water quality, its cycling and balance and therefore deserve protection. They are an element of landscape structure (ecosystem function or service) commonly considered a factor stabilising environmental changes. Most threats posed to waters in Poland originate from present cropland structure with its definite predominance of arable lands over grasslands. Agriculture should therefore focus on the improvement of land use structure in order to minimise environmental hazards and to guarantee at the same time optimum economic effects. This could be achieved by turning arable lands into grasslands (where justified e.g. on light soils) or at least by maintaining present grassland area (condition in negotiations with the EU) and management that would consider environmental protection. Increasing the contribution of grasslands to cropland structure or at least maintaining their present status quo would help to achieve compromise between the goals of farmers and environmental protection. Purposeful utilisation of ecosystem services, particularly those of grasslands, allows to maintaing more intensive farming without environmental hazard. Limited should be only such activities whose intensity exceeds regenerative or buffering environmental capacity e.g. on grounds particularly subjected to water pollution or those included into Natura 2000 network.
Trwałe użytki zielone (TUZ) - zgodnie z treścią RDW - są typowymi ekosystemami od wód zależnymi, czyli mającymi duży wpływ przede wszystkim na ich jakość, ale także na przedłużanie ich obiegu i poprawę bilansu wodnego, i dlatego podlegającym ochronie. Są elementem struktury przyrodniczej krajobrazu (funkcja lub usługa ekosystemu) powszechnie uważanym za czynnik stabilizujący procesy zmian środowiska naturalnego. Większość zagrożeń wód w Polsce wiąże się z aktualną strukturą użytków rolnych, charakteryzującą się zdecydowana przewagą gruntów ornych nad użytkami zielonymi. Działalność rolnicza powinna więc iść w kierunku poprawy struktury rolniczego użytkowania ziemi tak, aby w danych warunkach środowiskowych stanowiło ono jak najmniejsze zagrożenie dla środowiska, gwarantując jednocześnie optymalne efekty ekonomiczne. Działania te to zamiana gruntów ornych na trwałe użytki zielone (tam gdzie jest to uzasadnione, np. gleby b. lekkie) lub przynajmniej utrzymanie dotychczasowej ich powierzchni (warunek w zapisach negocjacyjnych z Unią) oraz gospodarowanie uwzględniające ochronę środowiska. Zwiększenie udziału TUZ w strukturze użytków rolnych, lub przynajmniej utrzymanie ich dotychczasowej powierzchni, sprzyja osiągnięciu kompromisu celów rolnika producenta i ochrony środowiska. Świadome bowiem wykorzystanie usług ekosystemów, w tym szczególnie użytków zielonych, pozwala na utrzymanie intensywniejszych form gospodarowania bez zagrożeń środowiska. Ograniczane powinny być tylko te działania, których intensywność istotnie przekracza zdolności regeneracyjne i buforowe środowiska, np. na terenach szczególnie narażonych na zanieczyszczenia wód, np. zaliczane do sieci Natura 2000.
Źródło:: Journal of Water and Land Development; 2006, 10; 55-65
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: An application of a water assessment and simulation model in the remediation of the eutrophication capacity of a tropical water system: Case study the Lake Obili in Yaounde (Cameroon)
Zastosowanie symulacyjnego modelu oceny jakości wody w zapobieganiu eutrofizacji tropikalnych systemów wodnych: Przykład jeziora Obili w Yaounde (Kamerun)
Autorzy:: Ajeagah, G. A.
Abanda, W. V. B.
Nkeng, G. E.
Powiązania:: https://bibliotekanauki.pl/articles/292747.pdf
Data publikacji:: 2017
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: Africa lakes
modelling
pollution
water
jeziora Afryki
modelowanie
program WASP
woda
zanieczyszczenie
Opis:: Lake Obili is one of the most famous lakes in the city of Yaounde, Cameroon. Studies carried out in this lake showed that it was hyper eutrophic and therefore it represents a great danger because it is used for aquaculture, tourism and a suitable laboratory for hydro-biological engineering. It is thus very vital to restore this lake ecosystem that singles itself in the heart of the city of Yaounde. This can be greatly facilitated through the use of Water Quality Analysis Simulation Program (WASP) of the United State Environmental protection Agency (USEPA). The outcomes of the previous results obtained from EUTRO, a Subroutine of the WASP model specialised in determining eutrophication level have proven that the remediation of this lake can be achievable through the implementation of a wet dredging, the construction and restoration of a wastewater treatment plant, the implementation of environmental incentive policies and the arrangement of the access to the lake. The application of the model is a contribution to the scientific mastery of nutrient flow, lake functioning and possibilities of restauration of highly polluted tropical water bodies subjected to domestic and industrial pollution.
Jezioro Obili jest jednym z najbardziej znanych w mieście Yaounde w Kamerunie. Wyniki badań jeziora świadczą o jego skrajnej eutrofizacji, będącej poważnym zagrożeniem, ponieważ jezioro jest wykorzystywane w akwakulturze, do celów turystycznych, stanowi też laboratorium inżynierii hydrobiologicznej. Z tego powodu należałoby przeprowadzić rekultywację tego szczególnego ekosystemu jeziornego. Rekultywację jeziora może znacznie usprawnić zastosowanie programu analizy jakości symulacji wód (WASP) Agencji Ochrony Środowiska Stanów Zjednoczonych (USEPA). Wyniki poprzednich badań uzyskanych z EUTRO (podprogramu modelu WASP) wyspecjalizowanego w ocenie poziomu eutrofizacji dowiodły, że rekultywacja jeziora jest możliwa poprzez usuwanie osadów, budowę i unowocześnienie oczyszczalni ścieków, wdrożenie innowacyjnej polityki wodnej i zorganizowanie dostępu do jeziora. Zastosowanie modelu stanowi wkład w naukowe rozpoznanie przepływu pierwiastków biogennych, funkcjonowania jeziora i możliwości rekultywacji zanieczyszczonych zbiorników wodnych strefy równikowej.
Źródło:: Journal of Water and Land Development; 2017, 33; 11-22
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: River water quality assessment in East Java, Indonesia
Autorzy:: Novita, Elida
Pradana, Hendra A.
Purnomo, Bambang H.
Puspitasari, Amelia I.
Powiązania:: https://bibliotekanauki.pl/articles/1844410.pdf
Data publikacji:: 2020
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: Jember Regency
microbiology parameters
physicochemical parameters
pollution index
Bedadung River
water quality monitoring
Opis:: This study aims to assess the water quality and determine the pollution index of the Bedadung River in the urban-area segment of Jember Regency, East Java. The sampling in the urban segment of Jember was conducted in May 2019 at five different locations, namely Slamet Riyadi Street, Mastrip Street, Bengawan Solo Street, Sumatra Street, and Imam Bonjol Street. The pollution index assessment refers to the Decree of the State Minister for the Environment of Indonesia Republic number 115 of 2003. The analysis showed that the parameters of TDS, TSS, pH, COD, BOD, NH3-N, Co, Cd, Cu, Zn, H2S, Cl–, SO4, oil and fats, MBAS, NO2-N, Fe, Pb, F, Cl2, NO3-N, phenol, and As did not exceed the quality standards. The parameters PO4, CN, total coliform, and faecal coliform were found to breach the quality standards at the 5 water sampling points. Total coliform and faecal coliform were the dominant pollutants in this segment. Therefore, the parameters of PO4, total coliform, and faecal coliform were considered as indicators of pollution arising from domestic and agricultural activities. The pollution index values for the five sampling locations ranged from 7.21 to 8.23. These scores indicate that the Bedadung River section that passes through the urban segment in Jember is classified as being in the moderately polluted category. This preliminary rapid assessment is therefore one of the considerations for the management of water quality in the Bedadung River section that passes through the urban area of Jember.
Źródło:: Journal of Water and Land Development; 2020, 47; 135-141
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Assessment of the stability and reliability of the water treatment plant in Nowy Sącz using control cards
Autorzy:: Śliz, Paulina
Bugajski, Piotr
Powiązania:: https://bibliotekanauki.pl/articles/2073749.pdf
Data publikacji:: 2022
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: control cards
pollution reduction efficiency
stability of wastewater treatment
technological reliability
water treatment plant
Opis:: The subject of the study was to evaluate the stability and reliability of the sewage treatment plant in Nowy Sącz. The scope of the analysed indicators included the main indicators of wastewater contamination: BOD5(biochemical oxygen demand), CODCr (chemical oxygen demand), total suspended solids (TSS), total nitrogen (Ntot), and total phosphorus (Ptot). The operation stability of the sewage treatment plant in Nowy Sącz was determined on the basis of control cards x for 24 observations made in the period 2018-2019 (2 years). Moreover, the technological reliability of the tested sewage treatment plant (WN) was determined based on the values of the analysed pollution indicators in treated sewage and their permissible values. On the basis of the conducted analyses, full stability of the removal process of most of the analysed contaminants was found. In no case was there any crossing of the control lines, only a single grouping of samples above the help line in the case of total nitrogen, which could indicate a periodical disturbance in the stability of the removal process of this compound. On the basis of the obtained values of the reliability coefficient, which were below WN=1.00, reliable operation of the analysed facility was found, with a high degree of reduction (ƞ) of the analysed pollutants. The method of determining the technological reliability and stability of the treatment plant with the use of control cards is an effective and easy tool for detecting any disturbances and instabilities in the processes taking place in the tested facility. It enables the operator to take quick action to remove them, thus ensuring a safe wastewater treatment process for the environment and human health.
Źródło:: Journal of Water and Land Development; 2022, 52; 251--256
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Evaluation of groundwater in aluminium slag disposal area
Autorzy:: Putranto, Thomas Triadi
Febriane, Wenny
Powiązania:: https://bibliotekanauki.pl/articles/27312652.pdf
Data publikacji:: 2023
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: aluminium slag waste
geospatial analysis
heavy metals pollution index
multivariate analysis
water quality index
Opis:: Aluminium slag waste is a residue from aluminium recycling activities, classified as hazardous waste so its disposal into the environment without processing can cause environmental problems, including groundwater pollution. There are 90 illegal dumping areas for aluminium slag waste spread in the Sumobito District, Jombang Regency. This study aims to evaluate the quality of shallow groundwater surrounding aluminium slag disposal in the Sumobito District for drinking water. The methods applied an integrated water quality index (WQI) and heavy metal pollution index (HPI), multivariate analysis (principal component analysis (PCA) and hierarchical clustering analysis (HCA)), and geospatial analysis for assessing groundwater quality. The field campaign conducted 40 groundwater samples of the dug wells for measuring the groundwater level and 30 of them were analysed for the chemical contents. The results showed that some locations exceeded the quality standards for total dissolved solids (TDS), electrical conductivity (EC), and Al2+ . The WQI shows that 7% of dug well samples are in poor drinking water condition, 73% are in good condition, and 20% are in excellent condition. The level of heavy metal contamination based on HPI is below the standard limit, but 13.3% of the water samples are classified as high contamination. The multivariate analysis shows that anthropogenic factors and natural sources/geogenic factors contributed to shallow groundwater quality in the study area. The geospatial map shows that the distribution of poor groundwater quality is in the northern area, following the direction of groundwater flow, and is a downstream area of aluminium slag waste contaminants.
Źródło:: Journal of Water and Land Development; 2023, 57; 78--90
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Physico-chemical and biological water quality of Warna and Pengilon Lakes, Dieng, Central Java
Autorzy:: Soeprobowati, Tri Retnaningsih
Addadiyah, Nurul Layalil
Hariyati, Riche
Jumari, Jumari
Powiązania:: https://bibliotekanauki.pl/articles/2048566.pdf
Data publikacji:: 2021
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: Dieng
Lake Warna
Lake Pengilon
phytoplankton
pollution index
saprobic index
STORET method
water quality
Opis:: Warna and Pengilon Lakes are very close to each other and connected with the sill, a famous tourist destination in the Dieng Plateau Java. Land-use changes are the main problem that affected the lakes. The conversion of forest into an agricultural area had induced erosion and increased the volume of nutrients discharged to the lake due to high use of fertilisers in potatoes farms. In the dry seasons, water from those lakes was pumped to irrigate agricultural land. This study aimed to determine the water quality of Warna and Pengilon Lakes based on physical, chemical parameters, and phytoplankton communities. Water samples were collected from 4 sites at each lake to analyse biological oxygen demand (BOD), chemical oxygen demand (COD), ammonia, nitrate, nitrite, and total nitrogen (TN). Temperature, pH, dissolved oxygen (DO), turbidity, and conductivity (EC) were measured in-situ. During this research, turbidity and BOD in Warna and Pengilon Lakes exceeded the Indonesian water quality standard. Based on the STORET method, the water quality of Lake Warna was assessed as highly polluted for all classes. However, based on the pollution index (PI), Lake Warna was slightly to moderately polluted, as well as the saprobic index was in the β-mesosaprobic phase. Based on the species diversity index of phytoplankton, both Warna and Pengilon Lakes were moderately polluted. The long-term monitoring studies are necessary as an early warning sign of water quality degradation. Therefore, they provide insight into the overall ecological condition of the lake and can be used as a basis for developing suitable lake management.
Źródło:: Journal of Water and Land Development; 2021, 51; 38-49
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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