重力出水式膜生物反应器用于再生水生产的研究  

Production of Reclaimed Water by Membrane Bioreactor with Gravity Flow

作　　者：蔡亮[1,2] 杨建州[2] 王林权[1] 赵志刚[2] 白志辉[2] 

机构地区：[1]西北农林科技大学资源环境学院,陕西杨凌712100 [2]中国科学院生态环境研究中心,北京100085

出　　处：《中国给水排水》2011年第13期67-69,共3页China Water & Wastewater

基　　金：中日政府间科技合作计划项目(2003DFB00016)

摘　　要：采用重力出水式膜生物反应器对低浓度生活污水的再生处理进行可行性研究。结果表明,在40 m3/(m2.h)左右的最佳曝气强度下,重力出水式膜生物反应器对污水中的氨氮、COD、浊度的平均去除率分别为95.1%、92.5%9、8.2%,出水氨氮、COD、浊度、pH值和DO平均值分别为1.12 mg/L、3.8 mg/L、0.47 NTU8、.03、.54 mg/L,完全达到了《城市污水再生利用城市杂用水水质(》GB/T 18920—2002)的要求。另外,重力出水方式下的膜通量比抽吸出水方式降低了16.6%,但可使曝气能耗降低66.7%～73.3%。Membrane bioreactor （MBR） with gravity flow was applied to treat low-concentration domestic sewage for production of reclaimed water. The results indicate that at the optimal aeration intensity of 40 m3/（ m2 · h） , the average removal rates of NH4 -N, COD and turbidity are 95.1% , 92.5% and 98.2% respectively, and the effluent NH4＋ -N, COD, turbidity, pH and DO are 1.12 rag/L, 3.8 mg/L, 0.47 NTU, 8.0 and 3.54 mg/L respectively, which meet the requirement of Reuse of Urban Re- cycling Water--Water Quality Standard for Urban Miscellaneous Water Consumption （GB/T 18920 - 2002）. Compared with the permeate flux with suction, the permeate flux with gravity flow is reduced by 16.6% , but the power consumption for aeration is reduced by 66.7% to 73.3%.

关 键 词：膜生物反应器 重力出水 低浓度生活污水 再生水 

分 类 号：X703[环境科学与工程—环境工程]