钙离子对MBR污泥混合液及膜污染层影响研究进展  

Effect of Calcium Ion on the Mixed Liquor Characteristics and Fouling Layer in Membrane Bioreactor

作　　者：张海丰[1] 王斌[1] 

机构地区：[1]东北电力大学化学工程学院,吉林132012

出　　处：《硅酸盐通报》2016年第4期1144-1149,共6页Bulletin of the Chinese Ceramic Society

基　　金：国家自然科学基金计划项目(51478093);吉林省科技发展计划项目(20120404;20130206061GX)

摘　　要：膜生物反应器(membrane bioreactor,MBR)作为一种新型的污水处理技术,以其高效、实用等特点备受人们的关注。然而,膜污染导致膜通量的下降,增加膜组件更换和清洗的频率,使其成为了影响MBR广泛应用的最大的障碍。本文首先探讨了钙离子对污泥絮体生物絮凝行为的强化机制,进而阐述了钙离子对活性污泥关键指标的影响;归纳总结了钙离子对膜污染影响的最新研究进展,最后对该领域的研究进行了展望。Membrane bioreactor（ MBR）,as a new high-efficient wastewater treatment technology,has gained considerable attention. However,a major obstacle for the applications of MBR is the rapid decline of the permeation flux due to membrane fouling. The article aims to summarize studies on the mechanism of the membrane fouling at the presence of calcium ion. Therefore,the role of calcium ion in activated sludge bioflocculation was discussed,and the effect of calcium ion on the sludge properties was also investigated. Moreover,the formation mechanism of the foulants layer during the process of membrane filtration was also analyzed. Finally,the future perspectives regarding the influence of membrane fouling with calcium ion were proposed.

关 键 词：膜生物反应器 膜污染 钙离子 生物絮凝 

分 类 号：X703[环境科学与工程—环境工程]