城市污水处理中提高生物脱氮效率的研究  

The research about how to increase the dfficiency of biological nitrogen removal

作　　者：张谦朋[1] 张永忠[1] 刘莲芬[1] 徐亚同[2] 

机构地区：[1]山东聊城师范学院生物系,聊城252059 [2]华东师范大学,上海200062

出　　处：《环境污染与防治》2001年第3期122-123,共2页Environmental Pollution & Control

摘　　要：提高城市污水处理中生物脱氮效率是当今国内外在污水处理中重点研究的课题。对现常用的 A/0 (缺氧 /好氧 )系统进行改进 ,从好氧装置出水口到厌氧装置之间增加一个回流装置 ,使在保持原有装置较高的 CODcr和 BOD5 去除率的同时 ,使装置对氮的去除率有较大的提高。这对现有污水处理厂提高氮的去除效果有一定的实用意义。A/O (anaerobic/aerobic) system which is used widely at present has been improved. A backflowing device making water returned from outlet of the aerobic device to the anaerobic device is added to with the additional new device, the system maintains the original system's advantage of high rate of elimination CODcr and BOD\-5, and enhances the rate of elimination nitrogen from 10.6% to 45.2%. So it has great value in usage to domestic sewage treatment plants.

关 键 词：CODCR BOD5 NH3-N NO3-N 总氮 城市污水 废水处理 生物脱氮 

分 类 号：X703[环境科学与工程—环境工程]