胞外聚合物对浸没式膜生物反应器污泥混合液特性的影响  

Effect of extracellular polymeric substances on the sludge mixed liquor characteristics in submerged membrane bioreactor

作　　者：郗丽娟[1] 张海丰[1] 张瑛洁[1] 

机构地区：[1]东北电力大学化学工程学院,吉林市132012

出　　处：《工业水处理》2010年第7期32-35,共4页Industrial Water Treatment

基　　金：天津市科技创新专项资金项目(06FZZDSH00900);东北电力大学博士启动基金

摘　　要：研究了胞外聚合物(EPS)对浸没式膜生物反应器(SMBR)污泥混合液特性的影响。在实验过程中,对污泥混合液黏度、污泥沉降性能、污泥絮体疏水性、污泥混合液可滤性定期进行了监测。实验结果表明:SMBR内累积的EPS直接影响污泥混合液的黏度、沉降性能、污泥絮体疏水性及污泥混合液的可滤性。The effects of extracellular polymeric substances（EPS） on the sludge mixed liquor characteristics of sub-merged membrane bioreactor（SMBR） have been studied.During the experimental process,the viscosity,sedimenta-tion capacity,relative coagulant hydrophobicity,and mixed liquor filterability of the sludge are periodically moni-tored.Experimental results show that the concentration of EPS accumulated in SMBR has direct influences on the viscosity,sedimentation capacity,relative hydrophobicity and mixed liquor filterability of the sludge.

关 键 词：浸没式膜生物反应器 胞外聚合物 相对疏水性 污泥混合液可滤性 

分 类 号：X703.3[环境科学与工程—环境工程]