高效原油降解菌的筛选及其在生物活性炭中的应用  

Screening of high efficient oil-degrading strains and their application in biological activated carbon

作　　者：冯晋阳[1] 吴小宁[1] 

机构地区：[1]西安工业大学材料与化工学院,陕西西安710032

出　　处：《环境污染与防治》2011年第6期39-43,共5页Environmental Pollution & Control

基　　金：陕西省教育厅专项基金资助项目(No.07JK290)

摘　　要：以原油为唯一碳源,采用升高原油浓度的方法从长期被石油污染土壤中驯化、筛选出6株高效原油降解菌SY1～SY6,其油降解率均高于55%。经初步鉴定,SY1为微杆菌属(Microbacteriumsp.),SY2为诺卡氏菌属(Nocardiasp.),SY3和SY5为假单胞菌属(Pseudomonassp.),SY4和SY6为芽孢杆菌属(Bacillussp.)。从得到的高效原油降解菌中选用SY2、SY4、SY5和SY6构建原油降解菌群SY,并将SY菌群接种到生物活性炭(BAC)反应器中,BAC反应器运行稳定后,COD去除率达75%以上,油降解率在80%以上,处理效果良好。Six oil degrading strains（named SY1 to SY6） were isolated and screened from oil-polluted soil with crude oil as single carbon source.The oil degrading rate of the six strains were all higher than 55%.Six strains were identified base on their physiological characteristics and morphology observation,results showed that SY1 belonged to Microbacterium sp.,SY2 belonged to Nocardia sp.,SY3 and SY5 belonged to Pseudomonas sp.,SY4 and SY6 belonged to Bacillus sp..SY2,SY4,SY5 and SY6 were selected for the construction of oil degradation bacterial community SY.The bacterial community SY was inoculated into the biological activated carbon（BAC） reactor for treatment of oil containing wastewater,BAC reactor presented perfect treatment performance after the stable operation,the removal rate of oil and COD were up go 80% and 75%,respectively.

关 键 词：石油污染土壤 原油降解菌 筛选 生物活性炭 

分 类 号：X741[环境科学与工程—环境工程]