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固定化对氯苯酚降解菌在生物流化床中的降解特性

丁成 李朝霞 许琦 杨波

环境工程学报2011,Vol.5Issue(1):70-74,5.
环境工程学报2011,Vol.5Issue(1):70-74,5.

固定化对氯苯酚降解菌在生物流化床中的降解特性

Degradation characteristics of immobilized p-chlorophenol-degrading strain in bio-fluidized bed reactor

丁成 1李朝霞 1许琦 1杨波1

作者信息

  • 1. 盐城工学院化学与生物工程学院,盐城,224003
  • 折叠

摘要

Abstract

A p-chlorophenol-degrading strain was encapsulated in alginate-chitosan-activate carbon powder microcapsules, and the degradation characteristics of immobilized p-chlorophenol-degrading strain under different conditions in bio-fluidized bed reactor were investigated by gas chromtography. Results indicated that the optimum conditions for the degradation were HRT of 72 h, ratio of the volume of microencapsulated inoculation (about 3.0 × 106cfu/mL in each microencapsulation) to the volume of wastewater of 10% , pH of 7, temperature of 30 ℃ with the initial concentration of p-chlorophenol of 120 mg/L. Both of immobilized strain and free strain were capable of degrading p-chlorophenol and the kinetics was found to correlate with the primary and secondly kinetic equation respectively. But the degradation efficiency of the immobilized strain was higher than the free strain significantly.

关键词

对氯苯酚/固定化/生物流化床/降解菌株

Key words

p-chlorophenol/ immobilized/ bio-fluidized bed/ degrading-strain

分类

资源环境

引用本文复制引用

丁成,李朝霞,许琦,杨波..固定化对氯苯酚降解菌在生物流化床中的降解特性[J].环境工程学报,2011,5(1):70-74,5.

基金项目

科技部科技型中小企业技术创新基金项目(09C26213201069) (09C26213201069)

江苏省科技创新基金项目(BC2007132) (BC2007132)

环境工程学报

OA北大核心CSCDCSTPCD

1673-9108

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