耐盐好氧型同步硝化反硝化脱氮系统构建及性能研究  

Study on the Construction and Performance of Salt-Tolerant Aerobic Simultaneous Nitrification and Denitrification System

作　　者：叶秀雅[1] 赵小娟 练治平 虞玉峰 庄映芬 李永莲[1] YE Xiuya;ZHAO Xiaojuan;LIAN Zhiping;YU Yufeng;ZHUANG Yingfen;LI Yonglian(Guangdong Industry Polytechnic,Guangzhou 510300,China)

机构地区：[1]广东轻工职业技术学院,广东广州510300

出　　处：《广东轻工职业技术学院学报》2022年第3期1-8,共8页Journal of Guangdong Industry Polytechnic

基　　金：广东省教育厅青年人才类项目(2019GKQNCX056);广东轻工职业技术学院校级科研项目(KJ2019-014);广东轻工职业技术学院创新创业精致育人项目(2020JZYR021)。

摘　　要：从实验室处理高盐度废水的SBR反应器中,分离得到了三株耐盐异养硝化菌与三株耐盐好氧反硝化菌,本实验将此六株菌混合培养试图构建同步硝化反硝化(Simultaneous Nitrification and Denitrification,简称SND)体系,研究了它们降解氨氮及其中间产物硝态氮和亚硝态氮的规律以及盐度对系统脱氮效率的影响。所构建的同步硝化反硝化体系能在完全好氧条件下将氨氮转化为亚硝氮,随即还原为N_(2)排放,体系能耐受较高浓度的氨氮负荷和盐度,整个生物脱氮过程历时较短,且无中间产物NO_(2)^(-)和NO_(3)^(-)的积累。Three strains of salt-tolerant heterotrophic nitrifying bacteria and three strains of salt-tolerant aerobic denitrifying bacteria were isolated from the SBR reactor which process high-salinity wastewater in the laboratory.In this experiment,the mixed culture of the six strains tried to construct a simultaneous nitrification and denitrification system,and studied the laws of their degradation of ammonia nitrogen and its intermediate products,nitrate nitrogen and nitrite nitrogen,and the influence of salinity on the system's denitrification efficiency.The constructed simultaneous nitrification and denitrification system can convert ammonia nitrogen into nitros nitrogen under completely aerobic conditions,and then reduce to N_(2) emission.The system can tolerate higher concentration of ammonia nitrogen load and salinity,and the entire biological denitrification process takes a short time,And there is no accumulation of intermediate products NO_(2)^(-) and NO_(3)^(-).

关 键 词：耐盐 异氧硝化菌 好氧反硝化菌 同步硝化反硝化 

分 类 号：X703[环境科学与工程—环境工程]