Impact of quinoline on activity and microbial culture of partial nitrification process

Bioresource Technology
Zhimin Fu, Ji Zhao

Abstract

In this study, the effect of quinoline on nitrification in an activated sludge system was evaluated in batch assays. Quinoline was evaluated to partial nitrification process or to partial nitrification-quinoline degrading process. In partial nitrification assays, 50-150mg/L quinoline presence promoted the ammonium oxidation efficiency (200-100%). Nonetheless, the consumption efficiencies for quinoline were less than 66.6%. On the other hand, in partial nitrification-quinoline degrading process, the promotion effect of quinoline (50-150mg/L) diminished significantly, ammonium oxidation were similarity to the control. However, the consumption efficiencies for quinoline were nearly 100%. DGGE results showed that the bacteria communities varied significantly. Acidovorax sp. JS42 and Acidovorax ebreus TPSY were responsible for ammonium oxidation in partial nitrification process, while Nitrosomonas in partial nitrification-quinoline degrading process. This information might be useful for treating wastewaters of ammonium/quinoline by partial nitrification technology.

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Citations

May 3, 2016·Bioresource Technology·Qiong GuoRen-Cun Jin
Nov 5, 2016·Applied Microbiology and Biotechnology·Larissa QuartaroliCynthia Canêdo da Silva
Aug 11, 2020·The Science of the Total Environment·Yanhong LuoShyryn Alimzhanova

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