胞外聚合物生成的影响因素及膜污染的研究  

Study on the factors of the formation of extracellular polymeric substances and membrane fouling

作　　者：杨义飞[1] 赵飞飞[1] 徐晓鸣[1] 滕希红 

机构地区：[1]山东建筑大学市政与环境工程学院,山东济南250101 [2]山东同圆设计集团,山东济南250101

出　　处：《山东建筑大学学报》2012年第1期28-31,共4页Journal of Shandong Jianzhu University

摘　　要：EPS是影响膜污染的重要因素。本文考察了污泥浓度以及温度的改变对EPS生成量的影响及其与膜污染的关系,并分析了EPS中LB-EPS的变化对膜污染的影响。结果表明:当MLSS大于6g/L时,EPS及其各组分浓度增加,膜污染速率急速上升;当温度为15～25℃时,污泥中EPS含量较低,膜污染速率也较低。Extracellular polymeric substances（EPS） has been reported as an important factor governing membrane fouling.This research studies the effect of sludge concentration and temperature on the quantity of the EPS and analyzes the change of LB-EPS on the impact of membrane fouling.The results show that as the concentration of EPS and its components increase when MLSS is greater than 6g/L,the rate of membrane fouling increases rapidly.The rate of membrane fouling decreases as the amounts of EPS becomes less when it is between 10~25℃.

关 键 词：环境工程 膜生物反应器 膜污染 EPS 

分 类 号：X703[环境科学与工程—环境工程]