A/O膜生物反应器处理生活污水试验研究  

Study on Domestic Wastewater Treatment by A/O Membrane Bioreactor

作　　者：王燕 

机构地区：[1]辽宁省朝阳市环境监测站,朝阳122000

出　　处：《环境保护科学》2009年第2期48-51,共4页Environmental Protection Science

摘　　要：采用试验规模的缺氧-好氧一体式膜生物反应器(A/O MBR)对生活污水处理回用进行了试验研究。试验结果表明,该工艺处理效果优良,系统对COD、NH3-N的平均去除率分别为94.7%、99.08%,膜分离截留对COD的去除起到了决定性作用,生物对NH3-N的去除占主要作用,膜本身对NH3-N的去除直接作用不大。出水COD、NH3-N的浓度分别为16.02mg/L和0.35mg/L,出水水质优于城市杂用水水质标准(GB/T 18920-2002)和河道景观环境用水水质标准(GB/T 18921-2002)。该系统运行稳定,具有较强的抗冲击负荷能力。工艺的污泥排放量趋于零,膜可以在线反冲洗,用化学方法清洗可以得到很好的恢复。This paper studies the treatment and reuse of the domestic wastewater using the pilot--scale of anaerobic-- aerobic submerged membrane bioreactor （A/O MBR） . The experimental results show that it is good for the removal of COD and ammonia, the average rates are 94.7%,99.08%. Membrane separation and withholding play a decisive role in the removal of COD. Biological treatment primarily removes NH3--N and the membrane has no direct role to remove NH3 --N. The effluent water ＇s COD and ammonia concentrations are 16. 02mg/L and 0. 35mg/L,The effluent water ＇s quality is better than the urban water standards （GB/T 18920--2002）and the river landscape environment＇s water quality standards （GB/T 18921--2002）. The system is stable and has a good anti--load capacity. The quantity of sludge is nearly zero, the membrane ＇s online backwashing and chemical cleaning methods can be properly restored.

关 键 词：A/O 膜生物反应器 生活污水 中水回用 

分 类 号：X703.3[环境科学与工程—环境工程] X799.3