Dissolved oxygen concentrations affect the function but not the relative abundance of nitrifying bacterial populations in full-scale municipal wastewater treatment bioreactors during cold weather

This study aimed to understand the effect of different dissolved oxygen (DO) concentrations on the abundance and performance of nitrifying bacteria in full-scale wastewater treatment bioreactors, particularly during the winter when nitrifying bacterial activity is often negligible. Biomass samples w...

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Veröffentlicht in:	The Science of the total environment 2021-08, Vol.781, p.146719-146719, Article 146719
Hauptverfasser:	Kim, Taegyu, Hite, Molly, Rogacki, Larry, Sealock, Adam W., Sprouse, George, Novak, Paige J., LaPara, Timothy M.
Format:	Artikel
Sprache:	eng
Schlagworte:	aeration ammonia biomass bioreactors cold Cold weather decline dissolved oxygen Dissolved oxygen concentrations environment genes microbial activity municipal wastewater Municipal wastewater treatment nitrification nitrites Nitrosomonas Nitrosomonas spp Nitrospira spp. Nitrotoga spp temperature wastewater treatment weather winter
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Beschreibung
Zusammenfassung:	This study aimed to understand the effect of different dissolved oxygen (DO) concentrations on the abundance and performance of nitrifying bacteria in full-scale wastewater treatment bioreactors, particularly during the winter when nitrifying bacterial activity is often negligible. Biomass samples were collected from three parallel full-scale bioreactors with low DO concentrations (
ISSN:	0048-9697 1879-1026
DOI:	10.1016/j.scitotenv.2021.146719