生物表面活性剂对土壤中微生物降解疏水性有机物的作用机制  

Effects of biosurfactants on biodegradation of soil HOCs： from the microbial aspect

作　　者：钟华[1] 曾光明[1] 黄国和[2] 傅海燕[1] 

机构地区：[1]湖南大学环境科学与工程系,长沙410082 [2]里贾纳大学工学院Saskatoon S4S0A2加拿大

出　　处：《高技术通讯》2006年第3期325-330,共6页Chinese High Technology Letters

基　　金：863计划（2001AA644020）资助项目.

摘　　要：探讨了在生物表面活性剂作用下，微生物在土壤介质中迁移和在疏水性有机污染物表面吸附的机制，以及生物表面活性剂与微生物细胞膜的作用模式，初步揭示了生物表面活性剂改变污染物的生物可利用性而促进其降解的微生物机理。In this paper, the microbial effects of biosurfactants in the remediation of the soil contaminated by hydrophobic organic compounds are given. The capability of biosurfactants to change the mobility and transportability of cells in the soil matrix as well as the microbial adhesion on the contaminants is reviewed. Finally, interaction mode of biosurfactants and cell membrane is also analyzed, and the mechanism of the biosurfactants to change the bioavailabilty and degradability of the contaminants in terms of the degradative microorganisms is basically revealed.

关 键 词：土壤修复 疏水性有机污染物 生物表面活性剂 微生物效应 生物可利用性 

分 类 号：X172[环境科学与工程—环境科学] TQ423[化学工程]