异养硝化-好氧反硝化菌Delftia sp.Y1对微污染水的脱氮性能  

Nitrogen-removal Ability of Heterotrophic Nitrification-aerobic Denitrification Bacteria Delftia sp. Y1 for Micro-polluted Water

作　　者：严新杰 陶海波 李新宇 陈晓慧 张雨晴 许宁 赵芝清[1] YAN Xin-jie;TAO Hai-bo;LI Xin-yu;CHEN Xiao-hui;ZHANG Yu-qing;XU Ning;ZHAO Zhi-qing(Quzhou University,Zhejiang Quzhou 324000,China)

机构地区：[1]衢州学院

出　　处：《广州化工》2019年第12期98-100,119,共4页GuangZhou Chemical Industry

基　　金：衢州市科技局资助项目(2015Y012);衢州学院博士科研启动项目(BSJX201601);省级大学生科技创新项目(2018R435002);国家级大学生科技创新项目(201811488020)

摘　　要：为实现微污染水中氮素的有效去除,探究了功能菌株Delftia sp.Y1在贫营养条件下的脱氮性能。结果表明:当C/N比为3~20时,脱氮率先增大后减少,最适C/N比为9;当NH+4初始浓度为3~20mg·L-1时,脱氮率先增大后减少,最大脱氮率为62.81%;当外加碳源是丁二酸钠、乙酸钠和葡萄糖时,菌株Y1的脱氮率分别为44.94%、56.00%和61.06%。该研究为HN-AD菌在微污染水处理中的应用提供了理论依据。To effectively remove nitrogen in micro-polluted water,the nitrogen removal ability of strain Delftia .sp.Y1 under oigotrophic condition was investigated. When the C/N ratio was between 3 and 20,the nitrogen removal rate increased and then decreased,and the optimal C/N ratio was 9. The nitrogen removal rate increased and then decreased at the concentrations of 3~20 mg·L^-1 of NH + 4,and the maximum nitrogen removal rate reached 62.81%. When the sodium succinate,sodium acetate and glucose were used as the carbon sources,the nitrogen removal rate was 44.94%,56.00% and 61.06%,respectively. The research provided theoretical basis for the application of HN- AD in the treatment of micro-polluted water.

关 键 词：微污染 异养硝化 好氧反硝化 鉴定 脱氮特性 

分 类 号：X703.1[环境科学与工程—环境工程]