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采用固定化技术处理土壤中菲、芘污染物
引用本文:王新,李培军,巩宗强,曲向荣,王兵.采用固定化技术处理土壤中菲、芘污染物[J].环境科学,2002,23(3):84-87.
作者姓名:王新  李培军  巩宗强  曲向荣  王兵
作者单位:1. 中国科学院沈阳应用生态研究所,沈阳,110016;沈阳工业大学理学院,沈阳,110023
2. 中国科学院沈阳应用生态研究所,沈阳,110016
3. 沈阳工业大学理学院,沈阳,110023
基金项目:中国科学院知识创新项目(KZCX2-401);国家自然科学基金资助项目(29977021)
摘    要:采用动胶杆菌(Zoogloea sp.)固定化技术包埋来降解土壤中菲、芘污染物,在不同接种量、不同系列浓度下,对降解效果进行了测定.结果表明:5%的接种量最为合理,在168h时,固定化细菌对菲、芘的降解率达84.89%和76.94%;而在相同条件下土著菌降解仅达到27.85%和19.65%,因此动胶杆菌(Zoogloea sp.)具有更好的降解能力.另外,还用电镜观察研究了动胶杆菌在载体中的分布形态,表明了固定化细菌降解土壤中菲、芘具有较高的优势.

关 键 词:固定化  降解  污染土壤    
文章编号:0250-3301(2002)03-04-0084
收稿时间:4/1/2001 12:00:00 AM
修稿时间:2001年4月1日

The Degradation of Phenanthrene and Pyrene Contaminated Soil with Immobilized Technique
Wang Xin,Li Peijun,Gong Zongqiang,Qu Xiangrong and Wang Bin.The Degradation of Phenanthrene and Pyrene Contaminated Soil with Immobilized Technique[J].Chinese Journal of Environmental Science,2002,23(3):84-87.
Authors:Wang Xin  Li Peijun  Gong Zongqiang  Qu Xiangrong and Wang Bin
Institution:Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110015, China.
Abstract:The phenanthrene and pyrene contaminated soil was degradated by immobilized-imbedding the selected Zoogloea sp. The degradation rate was determined under various amounts of inoculation and concentration, and the result showed that there was the best degradation rate at 5%. After 168h, the degradation rate of immobilized Zoogloea sp. to phenanthrene and pyrene was 84.89% and 76.94% respectively. While, the degradation rate of the native bacterium was only 27.85% and 19.65% at the same condition. So the Zoogloea sp. had the better degradation ability. And, Zoogloea sp. distributing shape in immobilized carrier was studied with electric scan-photo, it inferred that immobilized bacterium had the better degradation rate.
Keywords:immobilized  degradation  contaminated soil  phenanthrene  pyrene
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