降解苯酚类污染物细菌的分离筛选  

Screening of Phenol-Degrading Bacterial Strain

作　　者：褚蓓[1] 王艳芬[1] 王海磊[1] 马宁[1] 李冰洁[1] 刘国生[1] 

机构地区：[1]河南师范大学生命科学学院,河南新乡453007

出　　处：《河南师范大学学报（自然科学版）》2008年第2期139-142,共4页Journal of Henan Normal University(Natural Science Edition)

基　　金：河南省教育厅科技攻关项目(2007610004)

摘　　要：从某钢铁集团焦化厂污水处理曝气池取样,以苯酚为唯一碳源进行富集培养,然后经过分离与筛选,最后得到4株苯酚降解能力较强的菌株,这些菌株最高可耐受3.0 g.L-1的苯酚.苯酚降解能力测定表明,4株菌在72 h内能将浓度为1.5 g.L-1的苯酚完全降解,72 h内对浓度为2.0 g.L-1苯酚的降解率分别达到99.4%、80.5%、73.5%、70.1%.Active sludge has been collected from a sewage treatment tank of coke-oven plant of a steel and iron group. Four strains which can effectively degenerate phenol are isolated after domestication and filtration, under the aerobic condition and using phenol as the only carbon and energy source. These strains may tolerate up to phenol concentration of 3.0 g · L^-1. They can completely degenerate phenol at a concentration of 1.5 g · L^-1 within 72 h. And the degeneration rate may reach 99. 4%, 80.5%, 73.5% and 70.1%, respectively when phenol concentration reaches to 2.0 g · L^-1 in the medium.

关 键 词：苯酚降解菌 苯酚废水 富集培养 筛选 

分 类 号：Q939.9[生物学—微生物学] X172[环境科学与工程—环境科学]