一株降解氨氮菌株的筛选  

Isolation of Microorganisms Degrading Ammonia-nitrogen of Wastewater

作　　者：刘韶娜 杨国明 李卫芬[2] 

机构地区：[1]云南省畜牧兽医科学院,云南曲靖655000 [2]浙江大学,浙江杭州310058

出　　处：《养猪》2014年第2期77-78,共2页Swine Production

基　　金：云南省自然科学基金(2008ZC072M);云南生猪产业技术体系繁育研究室资助

摘　　要：以硫酸铵为唯一氮源的选择性培养基,通过富集培养,从天然养鱼池塘中筛选出一株能够降解废水中高浓度氨氮的菌株A4,并能耐受废水中的重金属离子,在造纸废水中48 h的降解速率为44%,通过革兰氏染色、菌落形态和分子生物学鉴定为木糖氧化无色杆菌反硝化亚种。A high effective microorganism A4 degrading ammonia-nitrogen has been isolated from a fish pond by the selected culture medium with （NH4）2SO4 as exclusive nitrogen source.It can bear the poison of heavy metal ion. In the wastewater,the degrading rate of NH4-N by A4 is over 44%within 48 h.Identified by biochemical methods, gram-stain reaction,PCR and electron microscope,this bacterim is Achromobacter xylosoxidans denitrificans.

关 键 词：造纸污水 氨氮 降解 

分 类 号：X172[环境科学与工程—环境科学] X713