http://hdl.handle.net/20.500.12128/12076
Tytuł: | Impact of the Biological Cotreatment of the Kalina Pond Leachate on Laboratory Sequencing Batch Reactor Operation and Activated Sludge Quality |
Autor: | Michalska, Justyna Greń, Izabela Żur, Joanna Wasilkowski, Daniel Mrozik, Agnieszka |
Słowa kluczowe: | activated sludge; functional capacity; leachate; structural diversity; toxicity |
Data wydania: | 2019 |
Źródło: | Water, Vol. 11 (2019), Art. No. 1539 |
Abstrakt: | Hauling landfill leachate to o site urban wastewater treatment plants is a way to achieve pollutant removal. However, the implementation of biological methods for the treatment of landfill leachate can be extremely challenging. This study aims to investigate the e ect of blending wastewater with 3.5% and 5.5% of the industrial leachate from the Kalina pond (KPL) on the performance of sequencing batch reactor (SBR) and capacity of activated sludge microorganisms. The results showed that the removal e ciency of the chemical oxygen demand declined in the contaminated SBR from 100% to 69% and, subsequently, to 41% after the cotreatment with 3.5% and 5.5% of the pollutant. In parallel, the activities of the dehydrogenases and nonspecific esterases declined by 58% and 39%, and 79% and 81% after 32 days of the exposure of the SBR to 3.5% and 5.5% of the leachate, respectively. Furthermore, the presence of the KPL in the sewage a ected the sludge microorganisms through a reduction in their functional capacity as well as a decrease in the percentages of the marker fatty acids for di erent microbial groups. A multifactorial analysis of the parameters relevant for the wastewater treatment process confirmed unambiguously the negative impact of the leachate on the operation, activity, and structure of the activated sludge. |
URI: | http://hdl.handle.net/20.500.12128/12076 |
DOI: | 10.3390/w11081539 |
ISSN: | 2073-4441 2073-4441 |
Pojawia się w kolekcji: | Artykuły (WNP) |
Plik | Opis | Rozmiar | Format | |
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Michalska_Impact_of_the_biological_cotreatment.pdf | 2,56 MB | Adobe PDF | Przejrzyj / Otwórz |
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