Partial Nitrification to Nitrite with Real-Time Aeration Duration Control in an SBR Treating Domestic Wastewater

Yu Chen; Jun Li; C .W Wang; X.F Zhao; B.H Zhao

doi:10.4028/www.scientific.net/AMR.356-360.1046

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 356-360Partial Nitrification to Nitrite with Real-Time...

Partial Nitrification to Nitrite with Real-Time Aeration Duration Control in an SBR Treating Domestic Wastewater

Abstract:

Sustainable partial nitrification to nitrite has been proven difficult in treating low strength nitrogenous wastewater. Real-time aeration duration control was used to achieve efficient partial nitrification to nitrite in a sequencing batch reactor (SBR) to treat low strength domestic wastewater. Above 95% nitrite accumulation ratio was maintained for long-term operation at normal condition. Partial nitrification established by controlling aeration duration showed good performance and robustness even though some time encountering long-term extended aeration. Process control enhanced the successful accumulation of ammonia oxidizing bacteria (AOB) and washout of nitrite oxidizing bacteria (NOB).

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Periodical:

Advanced Materials Research (Volumes 356-360)

Pages:

1046-1049

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.356-360.1046

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Online since:

October 2011

Authors:

Yu Chen, Jun Li, C .W Wang, X.F Zhao, B.H Zhao

Keywords:

Aeration Duration Control, Nitrite Accumulation, Partial Nitrification to Nitrite, Sequencing Batch Reactor (SBR)

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