Journal of South China University of Technology (Natural Science Edition) ›› 2006, Vol. 34 ›› Issue (9): 128-132.

• Environment Science & Technology • Previous Articles    

Chlorophenol Degradation and M icroorganism Community Structure of Immobilized Granular Sludge Under Micro-Aeration Condition

Chen Yuan-cai1  Chen Zhu1  Lan Hui-xia2  Fu Shi-yu1  Guo Jing3   

  1. 1.State Key Laboratory of Pulp and Paper Engineering,South China Univ.of Tech.,Guangzhou 510640,Guangdong,China;2.Environmental and Safety Engineering College,Qingdao Univ.of Science and Tech.,Qingdao 266042,Shandong,China;3.Key Laboratory of Industrial Biotechnology of the Ministry of Education,Southern Yangtze Univ.,Wuxi 214036,Jiangsu,China
  • Received:2005-07-12 Online:2006-09-25 Published:2006-09-25
  • Contact: 陈元彩(1967-)，女，副研究员，博士，主要从事含氯有饥物t物处理技术的研究 E-mail:chenyc@scut.edu.cn
  • About author:陈元彩(1967-)，女，副研究员，博士，主要从事含氯有饥物t物处理技术的研究
  • Supported by:

    江南大学工业生物技术教育部重点实验室开放基金资助项目(KLIB-KF200503)；华南理工大学制浆造纸工程国家重点实验室开放基金资助项目(200552)

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Abstract:

A comparison of PCP(Pentachl0r0phen01)degradation was made in micro-aeration and anaerobic condi-tions with three series of batch experiments;(1)anaerobic granular sludge and the mixed isolated aerobic bacteria were eo-immobilized with PVA(Polyvinyl Alcohol)and sodium alginate by means of freeze;2)isolated aerobic bacteria were first immobilized with PVA and sodium alginate and then mixed with anaerobic granular sludge;and (3)isolated aerobic bacteria were directly added in anaerobic granular sludge.The results indicate that,in the mi-ero-aeration condition.the co-immobilization of anaerobic granular sludge and isolated aerobic bacteria can enhance the PCP degradation through the synergism of aerobes and anaerobes.Whereas in the anaerobic condition.there is no significant difference in degradation rate among the three immobilized anaerobic granular sludge.Moreover,the presence of the activities of aerobes and anaerobes in the immobilized sludge is further conformed by specific activi-ty experiments in aerobic and anaerobic conditions,and the microorganism community structure of the eo-immobi-lized granular sludge in micro-aeration condition is also deduced.

Key words: dechlorination, immobilization, granulation, microorganism, community structure, pentachlorophenol