A/O膜生物反应器处理高浓度氨氮废水试验研究  

A/O MBR performance in treating a wastewater of high ammonia concentration

作　　者：张爽[1] 宋靖国[1] 杨平[1] 侯伶龙[1] 陈文清[1,2] 

机构地区：[1]四川大学建筑与环境学院,四川成都610065 [2]川大-日立环境应用技术研究中心,四川成都610065

出　　处：《环境污染与防治》2009年第2期38-41,46,共5页Environmental Pollution & Control

基　　金：四川省国际科技合作项目(No.2008HH0012);四川大学与日立公司合作研究项目(No.07H372)

摘　　要：对A/O膜生物反应器处理高浓度氨氮废水进行了研究,着重考察硝化液回流比和C/N对系统脱氮效能的影响。研究表明,当硝化液回流比为2、C/N为6时,系统对COD、氨氮、TN的平均去除率分别达96.17%、97.76%、76.29%;A/O膜生物反应器稳定运行期间,氨氮容积负荷去除量与进水氨氮容积负荷呈现良好的线性关系;当A/O膜生物反应器内MLSS稳定在9～13g/L时,上清液COD较低,膜压差增长缓慢。Series of experiments were conducted to determine the effects of C/N ratio and effluent recyling on nitrification and denitrification in an anoxic/aerobie membrane bioreactor employed for treating a wastewater of high NH4^＋-N concentration. At a recycle ratio of 2 and C/N of 6, COD, NH4^＋-N and TN removal rates were 96.17%, 97.76%, 76.29% respectively. During the period of treatment performance, the NH4^＋-N removal was proportional to its volumetric loading： When MLSS was 9-13 g/L, COD in the supernatant was relatively low, and the pressure drop across the membrane increased slowly.

关 键 词：A/O膜生物反应器 高浓度氨氮废水 脱氮 膜污染 

分 类 号：X703[环境科学与工程—环境工程]