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Wyświetlanie 1-6 z 6
Tytuł:
Farmaceutyki w wodach rzecznych oraz ich migracja do ujęć infiltracyjnych w Krajkowie
Pharmaceuticals in river and bank filtrate water in Krajkowo (Poland)
Autorzy:
Kruć, Roksana
Dragon, Krzysztof
Górski, Józef
Powiązania:
https://bibliotekanauki.pl/articles/2061537.pdf
Data publikacji:
2019
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
infiltracja brzegowa
farmaceutyki w wodach powierzchniowych
farmaceutyki w wodach infiltracyjnych
mikrozanieczyszczenia organiczne
stopień redukcji farmaceutyków
riverbank filtration
pharmaceuticals in surface water
pharmaceuticals in bank filtrate
removal rate of pharmaceuticals
organic micropollutants
Opis:
W 2018 r. na ujęciu infiltracji brzegowej w Krajkowie wykonano oznaczenia farmaceutyków w wodach rzecznych i infiltracyjnych. Przeprowadzono trzy serie badań: w rzece Warcie, piezometrach i studniach usytuowanych w różnych odległościach od rzeki (38–250 m) oraz w studni promienistej z drenami zlokalizowanymi 5 m pod dnem rzeki. Łącznie analizie poddano 75 substancji, w tym antybiotyki, leki przeciwbólowe, przeciwzapalne, psychotropowe, β-blokery oraz środki kontrastowe promieniowania X. Kilka spośród badanych parametrów, np. jomeprol czy jopromid, wykryto jedynie w wodach rzecznych. Najczęściej występującymi substancjami zarówno w wodach powierzchniowych, jak i infiltracyjnych były: karbamazepina, gabapentyna, tramadol, oksypurinol, flukonazol oraz lamotrygina. Najwyższe stężenia farmaceutyków wykryto w wodach powierzchniowych. Koncentracje te ulegały jednak redukcji na drodze przepływu z rzeki do studni i otworów obserwacyjnych. W studni promienistej i otworze zlokalizowanym w odległości 38 m od rzeki uzyskano niski stopień redukcji farmaceutyków w stosunku do rzeki. Wyższe stopnie redukcji osiągnięto w studniach położonych w odległości 64–82 m od rzeki. W otworze 78b/1s, oddalonym o 250 m, zachodziła stuprocentowa redukcja większości badanych substancji. Na podstawie badań ustalono, że najkorzystniejsza odległość, przy której należy lokalizować studnie ujęć infiltracji brzegowej, w kontekście usuwania mikrozanieczyszczeń wynosi 200 m, przy czym znaczne stopnie redukcji można uzyskać już w odległości 60–80 m.
In 2018, determination of pharmaceuticals in river and infiltration water was carried out at a riverbank filtration site in Krajkowo. Three sampling campaigns were conducted: in the Warta River, in wells located at different distances from the river (38–250 m), and in a horizontal well with drains located 5 m below the river bottom. In total, 75 substances were analyzed, including antibiotics, analgesics, anti-inflammatory, psychotropic drugs, β-blockers and X-ray contrast agents. Several of the tested substances, e.g. iomeprol and iopromide, were detected only in river water. The most common substances, both in surface and infiltration waters, were carbamazepine, gabapentin, tramadol, oxypurinol, fluconazole and lamotrigine. The highest concentrations of pharmaceutical were detected in surface water. However, these concentrations were reduced by the flow path. The horizontal well and the observation well located close to the river are characterized by a low reduction of pharmaceuticals. Higher removal rates were achieved in wells located at a distance of 64–82 m. At point 78b/1s, located 250 m away, there is a 100% reduction of most of tested parameters. Based on the research, it was found that the most favourable distance at which the riverbank filtration wells should be located, is more than 200 m: however, significant removal rates can already be obtained at a distance of 60–80 m.
Źródło:
Biuletyn Państwowego Instytutu Geologicznego; 2019, Hydrogeologia z. 16; 109--116
0867-6143
Pojawia się w:
Biuletyn Państwowego Instytutu Geologicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Vertical nitrate migration and denitrification zones in a regional recharge area (Lwówek region, Poland)
Autorzy:
Dragon, Krzysztof
Górski, Józef
Burghardt, Diana
Powiązania:
https://bibliotekanauki.pl/articles/2149469.pdf
Data publikacji:
2022
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
nitrate contamination
enitrification
groundwater flow pattern
nitrogen isotopes
sediment geochemistry
Opis:
We examine the influence of groundwater flow patterns and denitrification on nitrate migration in a regional recharge zone. It has been shown that nitrate contamination has a different behaviour in regions where groundwater is exploited (where deep percolation of nitrate takes place) than where natural gradients exist (with no deep aquifer zone contamination). Multicomponent chemical tracers and isotopic methods were used in the investigation. A contaminant plume was discovered in shallow parts of the aquifer which percolated into deeper parts of the flow system in those regions with a downwards gradient induced by groundwater withdrawal, where the influence of denitrification was limited. Local conditions leading to intense denitrification, i.e., local changes in geological conditions (low-permeability silt intercalations), were also documented. Therefore, vertical changes in groundwater chemistry should be examined to ensure groundwater resource management and protection, as these are extremely important in regional recharge zones with a downwards gradient.
Źródło:
Geological Quarterly; 2022, 66, 2; art. no.15
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Factors affecting the concentrations of pharmaceutical compounds in river and groundwaters : efficiency of riverbank filtration (Mosina-Krajkowo well field, Poland)
Autorzy:
Kruć-Fijałkowska, Roksana
Dragon, Krzysztof
Drożdżyński, Dariusz
Powiązania:
https://bibliotekanauki.pl/articles/2127368.pdf
Data publikacji:
2022
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
pharmaceuticals
riverbank filtration
sorption
biodegradation
water mixing
Opis:
Pharmaceutical compounds were investigated in river and riverbank filtration (RBF) water at the Mosina-Krajkowo site (Poland), in 6 sampling campaigns between November 2019 and June 2020. All of the ten pharmaceutical compounds tested for were detected in the water. Carbamazepine, fluconazole, tramadol, sulphamethoxazole and sulphapyridine were the most frequently found, the highest concentrations being observed in surface water. There was a reduction in their levels in the horizontal well (HW) with drains located below the river bottom, averaging 17%. Significantly higher reductions (53–71%) were observed in vertical wells (VWs). Mixing, sorption and biodegradation were distinguished as processes conditioning the reduction of pharmaceutical compounds along flow paths from the river to the wells. Their reduction in the HW occurs due to sorption onto fine sediments with high organic matter content and aerobic biodegradation, while in the VWs it is the effect of aerobic biodegradation and water mixing with unpolluted groundwater. Sorption on riverbed fine sediments can also occur, especially during low water levels in the river. Biodegradation develops in oxic conditions with aerobic bacteria. VWs located at similar distances from the river yielded different concentrations of pharmaceutical compounds, because of differences in geological structure, hydrogeological conditions and well operation parameters.
Źródło:
Geological Quarterly; 2022, 66, 1; art. no. 3
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of river water infiltration conditions based on both chloride mass-balance and hydrogeological setting: the Krajkowo riverbank filtration site (Poland)
Autorzy:
Gorski, Jozef
Dragon, Krzysztof
Kruc-Fijalkowska, Roksana
Matusiak, Magdalena
Powiązania:
https://bibliotekanauki.pl/articles/1841619.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
riverbank filtration
water balance
water travel time
natural tracer
filtracja brzegu rzeki
bilans wodny
czas przepływu wody
Opis:
In the present work measurements of chloride concentrations were used to assess the variability of infiltration conditions and contributions of surface water and local groundwater to the discharge of wells at Krajkowo riverbank filtration site (western Poland). Tests were performed on samples from 26 wells located in a well gallery close to the River Warta. Due to higher chloride concentrations in river water in comparison with local groundwater, significant differences in concentrations in samples from individual wells were noted. In particular, lower chloride concentrations in 11 wells were recorded, which can be linked to the local occurrence of low-permeability deposits in the superficial zone; a locally higher degree of riverbed sediment clogging in the highly convex meandering zone, where strong erosion of the riverbed occurred, which in turn led to increased clogging; the occurrence of a more intensive groundwater inflow into the river valley due to water infiltration from a smaller river entering the River Warta valley, as well as unfavourable conditions for the infiltration of surface water to the lower part of the aquifer with a greater thickness. Differences in chloride concentrations observed were also used to quantify approximately river water contribution to the well production. The average contribution of the River Warta to the recharge of the entire well gallery was estimated at 59.8%.
Źródło:
Geologos; 2021, 27, 1; 35-41
1426-8981
2080-6574
Pojawia się w:
Geologos
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The impact of treated wastewater effluent on contamination of a water supply aquifer during one decade of water exploitation (Tursko well field, Poland)
Autorzy:
Dragon, Krzysztof
Kruć-Fijałkowska, Roksana
Siepak, Marcin
Drożdżyński, Dariusz
Górski, Józef
Matusiak, Magdalena
Powiązania:
https://bibliotekanauki.pl/articles/2149470.pdf
Data publikacji:
2022
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
pharmaceuticals in groundwater
groundwater contamination
treated wastewater
denitrification
nitrate pollution
Opis:
The recharge zone of an aquifer supplying the Tursko well-field (Poland), located in an area of sparse water resources, shows groundwater contamination manifested by high nitrate concentrations and pharmaceutical compounds. This study documents the steady deterioration of groundwater chemistry during one decade of groundwater exploitation, and analyses wastewater impact on the groundwater chemistry using pharmaceutical compounds as anthropogenic tracers, with focus on the influence of treated wastewater and drainage water. These waters infiltrate into groundwater from a drainage ditch located in the water supply aquifer’s recharge zone. It is shown that strongly contaminated water can deliver organic matter and nutrients to the groundwater, activating or intensiying denitrification. As a result, the nitrate concentration has decreased in the groundwater, while concentrations of denitrification products have increased. Associated process of oxidation of organic matter causes periodic exceeding of limits allowed for drinking water. The ability of pharmaceutical compounds to act as anthropogenic tracers shows that infiltration of wastewater is a significant factor influencing drinking groundwater quality.
Źródło:
Geological Quarterly; 2022, 66, 2; art. no. 14
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-6 z 6

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