平板膜MBR中自生二次膜的研究  

Research on Self-formed Secondary Membrane in Flat-sheet MBR

作　　者：王亮[1] 孙凯[1] 张宏伟[1] 岳琳[2] 邢锴[1] 

机构地区：[1]天津工业大学环境工程系,天津300160 [2]天津天乐国际工程咨询公司,天津300203

出　　处：《中国给水排水》2009年第21期59-61,64,共4页China Water & Wastewater

基　　金：天津市科技创新专项基金资助项目(06FZZDSH00900);国家重点基础研究发展计划(973)项目(2008CB417202);国家水体污染控制与治理科技重大专项(2008ZX07314-003)

摘　　要：研究了平板膜MBR中不同工况对自生二次膜的影响和自生二次膜对污染物的去除效果。结果表明，当MLSS为11～15g/L、DO为3mg／L左右、SRT为60d时，所生成二次膜的性状最好，可以有效缓解膜污染；自生二次膜对细小颗粒和溶解性物质有一定的截留作用，对COD的去除率可达到5．89％，但对TN的去除效果不明显。The effect of operation conditions of flat-sheet MBR on self-formed secondary membrane and the removal efficiency of pollutants by self-formed secondary membrane were studied. The results show that when MLSS is 11 to 15 g/L, DO is 3 mg/L and SRT is 60 d, the characteristics of the self- formed secondary membrane are the best, resulting in effective fouling mitigation. Fine particles and sol- uble matters can be partly intercepted by self-formed secondary membrane, and the removal rate of COD is 5.89% , but the removal efficiency of TN is not obvious.

关 键 词：平板膜MBR 自生二次膜 胞外聚合物(EPS) 

分 类 号：X703[环境科学与工程—环境工程]