水解酸化—A^2/O—MBR联合处理混合污水的中试研究  

Research on the pilot scale process for treating mixed sewage by a combined process,hydrolysis acidificationanaerobic/anoxic/oxic-membrane bioreactor(A^2/O-MBR)

作　　者：李静[1] 李征[2] 张彦平[1] 李一兵[1] 韩非[1] 刘子晨[1] 张雨[1] 

机构地区：[1]河北工业大学土木工程学院,天津300401 [2]中国市政工程华北设计研究总院第一设计研究院,天津300074

出　　处：《工业水处理》2014年第8期40-43,共4页Industrial Water Treatment

基　　金：河北省建设科技研究项目(2010-111)

摘　　要：采用水解酸化—A2/O—MBR中试工艺处理某城市混合污水,当进水COD、NH3-N、TN、TP分别为394~894、33.5~133.5、48.6~145.4、4.9~15.4 mg/L时,该工艺对COD、NH3-N、TN、TP的去除率分别为81.9%、96.9%、30.9%、49.6%。其中,TN去除率随着碳氮比的增大而增大,表明可生化碳源不足影响了TN和TP的去除效果。工艺运行期间,MBR膜低压运行可有效减缓膜污染。A pilot-scale process, hydrolysis acidification-anaerobic/anoxic/oxic-membrane bioreactor （A2/O-MBR） has been used for treating the mixed sewage in a city. The results show that when COD ,NH3-N ,TN and TP in the influent are 394-894 mg/L,33.5-133.5 mg/L,48.6-145.4 mg/L and 4.9-15.4 mg/L,respectively,the average removing rates of COD, NH3-N, TN and TP are 81.9%, 96.9%, 30.9% and 49.6%, respectively. In addition, The TN removing rate exhibits an upward trend, rising with the rise of carbon nitrogen ratio. The results indicate that the insufficiency of biodegradability operation, membrane fouling can of carbon source in the influent has effect on TN and TP removing rates. During the be slowed down efficientlv under low membrane nressure operation.

关 键 词：水解酸化 A2 O 膜生物反应器 城市污水 

分 类 号：X740.3[环境科学与工程—环境工程]