YX27菌株筛分及去除富营养化河水中氨氮的研究  

Study on Separation Selection and Removing Ammonia Nitrogen of Eutrophication River Water of YX27

作　　者：魏丽娜[1] 商平[1] 王伟 

机构地区：[1]天津科技大学海洋科学与工程学院,天津300457 [2]天津市节水事务管理中心,天津300074

出　　处：《河北工业大学学报》2010年第1期37-41,共5页Journal of Hebei University of Technology

基　　金：天津市科技支撑计划重点项目(08ZCKFSH01600)

摘　　要：从活性污泥中经富集培养、分离纯化、效果测定筛选出1株降解氨氮能力较好的菌株YX27,初步鉴定YX27菌株属于亚硝化球菌属(Nitrosococcus).通过驯化将其应用于天津外环河河水中,并确定其去除氨氮的最佳条件.结果表明:在pH值7.2～7.6、振荡速度180r/min、温度30℃时,YX27对此富营养化河水中氨氮去除效果较好,处理7～8d后,氨氮去除率最高可达86.12%.YX27 that one bacterium can effectively degrade ammonia nitrogen was selected by steps including enrichment culture, separation, purification and effect testing from activated sludge. YX27 is Nitrosococcus by preliminary identificate, and was determined the best conditions of removing ammonia nitrogen of eutrophication river water. The results show that the optimal condition to remove ammonia-nitrogen of eutrophication fiver water is pH 7.2 - 7.6, vibration speed 180 r/min, temperature 30 ℃, and the highest removal rate can reach 86.12 % after 7 - 8 d.

关 键 词：亚硝化球菌属 富营养化河水 氨氮 亚硝化作用 去除率 

分 类 号：X522[环境科学与工程—环境工程]