A_2N反硝化除磷脱氮工艺的影响因素分析  

Analysis on influencing factors of A_2N denitrifying phosphorus and nitrogen removal process

作　　者：令云芳[1] 王淑莹[1] 王亚宜[1] 王伟[1] 彭永臻[1] 

机构地区：[1]北京工业大学北京市水质科学与水环境恢复重点实验室,北京100022

出　　处：《工业用水与废水》2006年第2期7-11,共5页Industrial Water & Wastewater

基　　金：国家自然科学基金项目(20377003);国家自然科学基金--国际(地区)重大合作项目(50478040);北京市重点实验室开放基金项目

摘　　要：A2N(厌氧/缺氧和硝化)反硝化除磷脱氮工艺是基于反硝化聚磷菌缺氧吸磷理论开发的新工艺。介绍了A2N工艺的原理和特点,对其影响因素诸如水力停留时间、溶解氧、NO3-和NO2-的浓度、原水中COD与TN的质量比、容积交换比及出水SS等进行讨论和分析,并综合国内外的研究结果给出工艺关键影响参数的设定范围。A2N （anaerobic/anoxic/nitrifying） denitrifying phosphorus and nitrogen removal process is a new process developed based on the theory of phosphorus uptake by denitrifying phosphorus accumulating organisms under anoxic condition. The principle and the characteristics of A2N process was introduced, the influencing factors such as hydraulic retention time, dissolved oxygen, mass concentration of NO3^- and NO2^-, mass ratio between COD and TN in the raw water, volumetric exchange rate, effluent SS etc. were discussed and analyzed. The design ranges of the key influencing parameters of the process were proposed consulted with the study results in China and aboard.

关 键 词：反硝化除磷脱氮 缺氧吸磷 双污泥系统 

分 类 号：X703.1[环境科学与工程—环境工程]