杞麓湖底泥好氧反硝化菌的筛选及反硝化特性研究  

Isolation and Identification of a High-eficiency Aerobic Denitrifier from the Bottom Soil of Qilu Lake and its Denitrifying Characteristc

作　　者：李云霞[1] 朱丹[1] 潘欢欢[1] 苏鸿雁[1] 

机构地区：[1]大理学院农学与生物科学学院,云南大理671003

出　　处：《楚雄师范学院学报》2012年第6期53-57,共5页Journal of Chuxiong Normal University

基　　金：大理学院洱海保护研究专项课题(KYRH201011)资助

摘　　要：采用溴百里酚蓝(BTB)选择性培养基对采集样品进行初筛分离。初筛菌株在30℃,DM培养基培养3天后的溶液测定其TN、NO3-N、NO2-N浓度变化。最终成功分离得到一株编号为8#菌株对NO3-N的降解率91.70%,亚硝态氮累积量仅为0.61 mg.L-1。该菌株反硝化能力较强,在实际的废水处理中具有一定的应用价值。By using BTB medium to isolate aerobic denitrifier . Among which the better strains experienced secondary screening： measuring the concentration of the TN,NO3 -N ,NO2 -N in the DM media after 3 days＇cultivation. In case of the denitrification process, the concentration of the NO3 - N,NO2 - N were measured. The 8# NO3 - N removal rate reached 91.70% and nitrite accumulation was in a low concentration of 0.61mg . L-1. The 8# was a high -eficiency aerobic denitrifier and it is useful in practical application.

关 键 词：底泥 好氧反硝化细菌 脱氮 

分 类 号：X703[环境科学与工程—环境工程]