亚硝酸盐对污水生物除磷影响的研究进展  

Effect of Nitrite on Biological Phosphorus Removal in Wastewater

作　　者：杨莹莹[1] 曾薇[1] 刘晶茹[2] 李磊[1] 王向东[1] 

机构地区：[1]北京工业大学环境与能源工程学院,北京100124 [2]大连水产学院土木工程学院,辽宁大连116023

出　　处：《微生物学通报》2010年第4期586-593,共8页Microbiology China

基　　金：国家自然科学基金项目(No.50878005);北京市优秀人才培养资助计划(No.20081D0501500178);北京市自然科学基金项目(No.8102005)

摘　　要：亚硝酸盐作为生物硝化和反硝化的中间产物,存在于污水生物脱氮除磷系统中。对于生物强化除磷工艺亚硝酸盐既是电子受体用于反硝化除磷,同时又是抑制剂影响生物除磷过程。本文综述了聚磷菌在厌氧、好氧和缺氧环境中的代谢机理,在此基础上分别从好氧除磷和反硝化除磷两方面介绍了亚硝酸盐对污水生物除磷影响的研究,同时概述了亚硝酸盐对生物除磷的抑制机理,并对该领域的研究提出了个人见解。Nitrite （NO2-） exists in the biological phosphorus and nitrogen removal system as an intermediate in the biological oxidation of ammonia to nitrate and reduction of nitrate to nitrogen. In enhanced biological phosphorus removal （EBPR） processes, nitrite is an electron acceptor used by denitrifying phosphorous removal bacteria and also an inhibitor to biological phosphorus removal process. This paper reviews metabolic mechanism of phosphorus accumulating organisms （PAOs） under anaerobic, aerobic and anoxic conditions separately. The effect of nitrite on biological phosphorus removal as well as inhibition mechanism of nitrite was introduced. The personal opinions were also suggested.

关 键 词：生物除磷 亚硝酸盐 好氧除磷 反硝化除磷 抑制机理 

分 类 号：X703[环境科学与工程—环境工程]