氨氮降解菌的筛选及降解氨氮条件研究  

Study on Selection of Ammonia Nitrogen Degrading Bacteria and Their Conditions of Degrade Ammonia Nitrogen

作　　者：蔡尽忠 张慧美 邱彩玲 范淑捷 邓盈 CAI Jin-zhong;ZHANG Hui-mei;QIU Cai-ling;FAN Shu-jie;DENG Ying(College of Environmet and Pubilc Health,Xiamen Huaxia University,Fujian Xiamen 361024;Key Laboratory of Environmental Monitoring in Fujian Colleges and Universities,Fujian Xiamen 361024,China)

机构地区：[1]厦门华厦学院环境与公共健康学院,福建厦门361024 [2]环境监测福建省高校重点实验室,福建厦门361024

出　　处：《广州化工》2020年第21期69-71,共3页GuangZhou Chemical Industry

基　　金：环境监测福建省高校重点实验室开放研究课题资助项目(HJJC1804);福建省教育厅中青年教师教育科研项目(JAT191005);大学生创新创业项目(201912709015)。

摘　　要：从厦门华厦学院天鹅湖底泥中,分离筛选出能降解氨氮的菌株,研究菌株降解氨氮的最适条件,包括其培养温度、转速、起始的pH值、培养时间。结果表明,从天鹅湖中的水底污泥获得7株氨氮降解菌,其中编号为TEH-03菌株对氨氮的降解能力最高。TEH-03菌株在最适培养条件下即温度26℃、pH值7.0,转速120 r·min^-1,该菌株培养14 h的对氨氮的降解率可以达到86.83%。将TEH-03菌株作用于富营养化的实际水体中,对氨氮的降解率达到77.78%。本研究可为水体氨氮污染的生物降解提供应用基础。The strains which can degrade ammonia nitrogen were screened and isolated from the bottom mud of Swan Lake of Xiamen Huaxia University.The optimum conditions for the degradation of ammonia nitrogen including the culture temperature,rotation speed,initial pH value and culture time were studied.The results showed that among the 7 strains of ammonia nitrogen degrading bacteria obtained from the bottom sludge of Swan Lake,using THE-03 strain would have the highest degradation rate.Under the optimum growth conditions of 26℃,pH value of 7.0 and rotating speed of 120 r·min^-1,the ammonia nitrogen degradation ability of TEH-03 strain can reach 86.83%after 14 h incubation.When TEH-03 strain was applied to eutrophic water,the degradation rate of ammonia nitrogen reached 77.78%.This study might provide application basis for the biodegradation of ammonia nitrogen pollution in water.

关 键 词：富营养化 氨氮降解菌 氨氮 生物脱氮 

分 类 号：X52[环境科学与工程—环境工程]