固定化Acinetobacter sp. XA05和Sphingomonas sp. FG03降解苯酚  

Biodegradation of Phenol by Using Immobilized Cells of Acinetobacter sp. XA05 and Sphingomonas sp. FG03

作　　者：李华[1] 刘永军[1] 刘金光[1] 

机构地区：[1]西安建筑科技大学环境与市政工程学院,陕西西安710055

出　　处：《化工环保》2010年第1期12-15,共4页Environmental Protection of Chemical Industry

基　　金：教育部"长江学者与创新团队发展计划"创新团队基金资助项目(IRT0853);陕西省教育厅项目(06JK267)

摘　　要：从活性污泥和受苯酚污染的土壤中分离出的菌株XA05和FG03均具有很强的苯酚生物降解能力。16srDNA序列分析表明,XA05和FG03菌株分别属于不动杆菌属(Acinetobacter sp.)和鞘氨醇单胞菌属(Sphin-gomonas sp.)。实验结果表明,在苯酚初始质量浓度为800.0mg/L、培养时间为35h的条件下,自由悬浮细胞和固定化细胞的苯酚降解率均高于95.0%。Strains XA05 and FG03,which were isolated from activated sludge and phenol-contaminated soil,both have a strong ability of degrading phenol. The results of 16s rRNA sequencing analysis indicate that XA05 and FG03 belong to Acinetobacter sp. and Sphingomonas sp. respectively. The experimental results show that under the conditions of initial phenol mass concentration 800.0 mg/L and cultivation time 35 h,the phenol degradation efficiencies with free and immobilized cells are both above 95.0%.

关 键 词：苯酚 生物降解 固定化细胞 ACINETOBACTER sp.XA05 SPHINGOMONAS sp.FG03 

分 类 号：X703[环境科学与工程—环境工程]