厌氧氨氧化技术应用研究进展

PROGRESS IN STUDY ON ANAEROBIC AMMONIUM OXIDATION

厌氧氨氧化(ANAMMOX)是新型经济的生物脱氮新工艺。在缺氧或厌氧条件下,经厌氧氨氧化自养菌将NH+4-N和NO-2-N转化为N2的过程。相比其他脱氮过程厌氧氨氧化具有需氧量少、污泥产量低、无二次污染、适用于处理高含氮量低碳氮比废水等的优势。综述了厌氧氨氧化的发现过程、作用机理、影响因素及厌氧氨氧化菌的种类,同时介绍了基于厌氧氨氧化技术的污水处理工艺类型及各工艺特点,最后总结了厌氧氨氧化技术存在的问题及今后研究的趋势。

In recent years,anaerobic ammonium oxidation(ANAMMOX) process was a novel biological nitrogen removal process.Under the anoxic or anaerobic conditions,NH+4-N and NO-2-N were converted to N2 by ANAMMOX bacteria.Compared to other denitrification processes,ANAMMOX process had obvious advantages,such as less oxygen demand,less sludge production,no secondary pollution and applied to treat the wastewater of high nitrogen content and low C /N and so on.This paper reviewed the discovery process of ANAMMOX,introduced the research mechanism of ANAMMOX,influence factors and the species of the ANAMMOX bacteria,simultaneously,introduced the sewage treatment process types and characteristics based on the ANAMMOX technology,and pointed out the problems of ANAMMOX process and the research trends in future.