冲厕污水多反应区MBR 工艺膜污染控制研究  

Study on Membrane Fouling Control in Multi-reaction Zone MBR Processof Toilet Flushing Wastewater

作　　者：李海燕[1,2] 曹汉鹏 刘建伟[1,2] 张紫阳[1,2] 谭朝洪 LI Haiyan;CAO Hanpeng;LIU Jianwei;ZHANG Ziyang;TAN Chaohong(Beijing Energy Conservation&Sustainable Urban and Rural Development Provincial and Ministry Co-construction Collaboration Innovation Center,Beijing University of Civil Engineering and Architecture,Beijing 100044,China;Beijing Engineering Research Center of Sustainable Urban Sewage System Construction and Risk Control,Beijing University of Civil Engineering and Architecture,Beijing 100044,China)

机构地区：[1]北京建筑大学北京节能减排与城乡可持续发展省部共建协同创新中心,北京100044 [2]北京建筑大学北京市可持续城市排水系统构建与风险控制工程技术研究中心,北京100044

出　　处：《环境科学与技术》2023年第10期112-120,共9页Environmental Science & Technology

基　　金：青年北京学者计划(024);北京建筑大学金字塔人才工程-建大领军培养计划(JDLJ20200301);国家重点研发计划项目课题(2021YFF0306304)。

摘　　要：该文在温度为(15±2)℃条件下,采用多反应区MBR工艺处理冲厕污水,在分析工艺运行性能的基础上,研究了工艺沿程的膜污染特性及颗粒活性炭对膜污染的控制效果,探讨了相关机制。结果表明,多反应区MBR工艺在低温条件下对冲厕污水具有较好的处理效果,COD、氨氮和总氮平均去除率分别为79.34%、97.42%和52.98%。多糖与蛋白随着工艺沿程不断累积,膜污染潜力上升。颗粒活性炭能够有效控制膜污染,SMP、LB-EPS以及TB-EPS中多糖、蛋白去除率分别达66.91%、58.57%、40.00%和79.28%、66.38%、88.61%。不同组分在吸附和微生物作用下发生降解或转化,疏水性腐殖酸浓度降低,从而工艺膜污染得到有效控制。The multi-reactor zone MBR process for treating toilet flushing wastewater at(15±2)℃temperature was studied.Based on process performance analysis,the membrane fouling characteristics and the control effect of granular activated carbon on membrane fouling were investigated,and the relevant mechanisms were elucidated.The results demonstrated that the MBR process effectively treated toilet flushing wastewater at low temperatures,with average removal rates of COD,ammonia nitrogen,and total nitrogen reaching 79.34%,97.42%,and 52.98%.Polysaccharides and proteins accumulated along the process,increasing the potential for membrane fouling.Granular activated carbon effectively inhibited membrane fouling,with removal rates of polysaccharides and proteins in SMP,LB-EPS,and TB-EPS reaching 66.91%,58.57%,40.00%and 79.28%,66.38%,88.61%,respectively.The organic components in the toilet flushing wastewater were efficiently removed or transformed through adsorption and microbial metabolism.As a result,the hydrophobic humic acid decreased,leading to the effective inhibition of membrane fouling.

关 键 词：低温 冲厕污水 膜生物反应器 膜污染 

分 类 号：X799.3[环境科学与工程—环境工程]