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Frontiers of Environmental Science & Engineering >> 2019, Volume 13, Issue 1 doi: 10.1007/s11783-019-1095-6

Characterization of CANON reactor performance and microbial community shifts with elevated COD/N ratios under a continuous aeration mode

State Key Laboratory of Pollution Control and Resources Reuse, Shanghai Institute of Pollution Control and Ecological Security, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China

Available online: 2018-12-03

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Abstract

COD/N at low ratios (0–0.82) improved N removals of CANON.

CANON performance decreased after COD/N up to 0.82.

The relative abundance of AOB decreased continuously with increasing COD/N.

AOB outcompeted at a high COD load led to CANON failure.

The relative abundance of AnAOB decreased and increased with increasing COD/N.

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