泥膜复合MBR工艺处理农村生活污水效果  

Performance of Combined Process of Mud-Film Composite MBR on Treating Rural Domestic Sewage

作　　者：王孟珍 WANG Mengzhen(Shanghai Investigation,Design&Research Institute Co.,Ltd.,Shanghai 200335,China;YANGTZE Eco-Environment Engineering Research Center,China Three Gorges Co.,Ltd.,Beijing 100038,China)

机构地区：[1]上海勘测设计研究院有限公司,上海200335 [2]中国长江三峡集团有限公司长江生态环境工程研究中心,北京100038

出　　处：《净水技术》2022年第S01期155-161,共7页Water Purification Technology

基　　金：中国长江三峡集团有限公司科研项目:长江中游地区村镇污水处理模式研究(202003082);无为县农村污水治理扶贫试点项目农村污水处理技术跟踪评估项目。

摘　　要：文中采用泥膜复合膜生物反应器(MBR)工艺处理农村生活污水,分析了其对污染物的处理效果。连续1年的运行试验结果表明,出水化学需氧量(COD_(Cr))、五日生化需氧量(BOD_(5))、总氮(TN)及氨氮可稳定达到《城镇污水处理厂污染物排放标准》(GB 18918—2002)一级A标准,达标率为100%,4个水质指标的平均去除率分别为51.2%、52.9%、39.3%及88.1%。由于进水BOD_(5)/TP低,该工艺对总磷(TP)的处理效果较差,达标率仅为12.8%。泥膜复合MBR工艺对农村生活污水具有较好的处理效果,且具有较强的抗冲击负荷能力,但对于生物除磷性能较差的农村生活污水,需要补充碳源或增加化学除磷单元以保证出水TP达标。The combined process of mud-film composite MBR was used to treat rural domestic sewage,and its treatment performance was analyzed in this paper.Results of continues one year operation tests showed that the concentrations of COD_(Cr),BOD_(5),TN and ammonia nitrogen in the effluent could reach the first grade A criteria of Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant(GB 18918—2002),and their compliance rates were 100%.The average removal rates of COD_(Cr),BOD_(5),TN and ammonia nitrogen were 51.2%,52.9%,39.3%and 88.1%,respectively.However,due to the low BOD_(5)/TP,the compliance rate of TP was only 12.8%.The combined process can treat rural domestic sewage effectively,and has strong ability to resist water shock loading.However,it is necessary to add chemical phosphorus removal units or carbon source to ensure the effluent TP quality reach the standard when the influent of the rural domestic wastewater has poor biological phosphorus removal performance.

关 键 词：农村生活污水 泥膜复合 膜生物反应器(MBR) 可生物除磷性能 达标率 抗冲击负荷能力 

分 类 号：X799.3[环境科学与工程—环境工程]