Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: EE2

Sortuj według:

Ogranicz wyniki do:

Adaptacja osadu czynnego do ścieków zawierających wybrane mikrozanieczyszczenia

Liwarska-Bizukojć E., Olejnik D., Gałamon M., Bernat P.

Gaz, Woda i Technika Sanitarna

2017

Nr 8

340--343

W artykule przedstawiono wyniki adaptacji osadu czynnego do ścieków zawierających w swoim składzie mikrozanieczyszczenia, takie jak 17α-etynyloestradiol (EE2), diklofenak (DCF) lub 4-nonylofenol (4NP). Stwierdzono, że osad czynny dość dobrze adaptuje się do ścieków syntetycznych zawierających jedno z badanych mikrozanieczyszczeń, a ich obecność nie zakłóca procesu biologicznego oczyszczania ścieków. Uzyskane efekty usunięcia badanych mikrozanieczyszczeń metodą osadu czynnego są również zadowalające i zgodne z wartościami podawanymi w literaturze. Najwyższy stopień usunięcia uzyskano dla EE2 (93%) oraz dla 4NP (70%), a najniższy dla DCF (57,6%).

The article presents results of adaptation of activated sludge to wastewater containing micropollutants such as 17α-ethinylestradiol (EE2), diclofenac (DCF) or 4-nonylphenol (4NP). It was found that the acclimation of activated sludge organisms to synthetic wastewater containing one of micropollutants studied ran correctly and the presence of micropollutants did not deteriorate biological wastewater treatment processes. Also, the obtained degrees of removal of micropollutants in the activated sludge system were satisfactory. They were in agreement with the values found in literature. The highest removal degrees were obtained for EE2 (93%) and 4NP (70%), while the lowest one for DCF (57,6%).

Screening of 17α-ethynylestradiol and non-steroidal anti-inflammatory pharmaceuticals accumulation in Mytilus edulis trossulus (Gould, 1890) collected from the Gulf of Gdańsk

Caban M., Szaniawska A., Stepnowski P.

Oceanological and Hydrobiological Studies

2016

Vol. 45, No. 4

605--614

Pharmaceuticals are commonly found in water collected from wastewater treatment plants, fresh water and saline water. Their presence in water may result in constant accumulation in living organisms, and consequently a negative impact on those organisms. Abiotic samples collected from the Gulf of Gdańsk were already proven to be polluted by several classes of pharmaceuticals, but the bioaccumulation was not investigated as far. This study presents the first results on the accumulation of pharmaceuticals in Mytilus edulis trossulus (Gould 1890) mussels collected from the Gulf of Gdańsk. The content of target 6 non-steroidal anti-inflammatory pharmaceuticals (ibuprofen, flurbiprofen, diclofenac, paracetamol, naproxen, ketoprofen) and 17α-ethynylestradiol in water and tissue samples was determined. The selected pharmaceuticals (paracetamol, flurbiprofen, 17α-ethynylestradiol) were found only in the largest individuals. The in situ BAFs calculated for paracetamol and flurbiprofen were 2850 and 16154 l kg-1 (dry weight), respectively, suggesting a high potential for the bioaccumulation of these compounds. The synthetic hormone 17α-ethynylestradiol was also found in the collected mussels at the concentration of 310 ng g-1 of dry weight. Generally, the examined mussels showed poor condition and it is highly likely that the accumulated pharmaceuticals are one of the important factors contributing to this.