全程自养脱氮工艺研究进展

Research Progress on Deammonification Technology

全程自养脱氮(CANON)工艺就是在厌氧氨氧化原理的基础上结合短程硝化,在同一反应器中厌氧氨氧化菌和亚硝化菌协同完成脱氮。CANON工艺与其他脱氮工艺相比不需要碳源、污泥产量低、设备简单、操作成本低,因而成为近些年的污水脱氮工艺的研究热点。文章从CANON工艺的原理、影响因素、工程应用现状和当前面临的问题四个方面介绍了CANON工艺,并对该工艺将来的发展进行了展望。

Deammonification（CANON） technology is based on the principle of anaerobic ammonia oxidation combined with shortcut nitrification,with anaerobic ammonia oxidizing bacteria and nitrite bacteria in the same reactor.Compared with other nitrogen removal processes,CANON process does not need carbon source,has the advantages of low sludge yield,simple equipment and low operation cost,which has become a research hotspot in recent years.The CANON technology from four aspects were introduced：the principle of CANON process,the influencing factors,the engineering application status and the current problems.