工业水处理 ›› 2010, Vol. 30 ›› Issue (7): 32-35. doi: 10.11894/1005-829x.2010.30(7).32

• 试验研究 • 上一篇    下一篇

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

郗丽娟, 张海丰, 张瑛洁   

  1. 东北电力大学化学工程学院, 吉林市 132012
  • 收稿日期:2010-03-15 出版日期:2010-07-20 发布日期:2011-01-17
  • 作者简介:郗丽娟(1960- ),1982年毕业于东北电力大学,高级工程师,副主任.电话:0432-64806620,E-mail:xlj1960@yahoo.com.cn。
  • 基金资助:

    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

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

Xi Lijuan, Zhang Haifeng, Zhang Yingjie   

  1. School of Chemistry Engineering, Northeast Electric Power University, Jilin 132012, China
  • Received:2010-03-15 Online:2010-07-20 Published:2011-01-17

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。

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

Abstract:

The effects of extracellular polymeric substances(EPS) on the sludge mixed liquor characteristics of submerged membrane bioreactor(SMBR) have been studied. During the experimental process,the viscosity,sedimentation capacity,relative coagulant hydrophobicity,and mixed liquor filterability of the sludge are periodically monitored. 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.

Key words: submerged membrane bioreactor, extracellular polymeric substances, relative hydrophobicity, filterability of sludge mixed liquor

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