基于MABR的市政污水处理强化脱氮中试研究  

Pilot Study on Enhanced Nitrogen Removal of Municipal Wastewater Treatment Based on MABR

作　　者：孙治冶 李保安[1,2,3,4] 李玫 王国锋 闫小军 兰美超 刘汝康 高帅 Sun Zhiye;Li Baoan;Li Mei;Wang Guofeng;Yan Xiaojun;Lan Meichao;Liu Rukang;Gao Shuai(School of Chemical Engineering and Technology,Tianjin University,Tianjin 300350,China;Collaborative Innovation Center of Chemical Science and Technology,Tianjin 300072,China;State Key Laboratory of Chemical Engineering,Tianjin University,Tianjin 300350,China;Qingdao Institute for Ocean Engineering of Tianjin University,Shandong Qingdao 266200,China;College of Fisheries,Henan Normal University,Henan Xinxiang 453007,China;Hydroking Sci&Tech,Ltd.,Tianjin 300384,China;Qingdao Chengtou Daren Water Co.,Ltd.,Western Wastewater Treatment Plant,Shandong Qingdao 266229,China)

机构地区：[1]天津大学化工学院,天津300350 [2]天津化学化工协同创新中心,天津300072 [3]天津大学化学工程联合国家重点实验室,天津300350 [4]天津大学青岛海洋工程研究院,山东青岛266200 [5]河南师范大学水产学院,河南新乡453007 [6]天津海之凰科技有限公司,天津300384 [7]青岛城投大任水务有限公司西部污水处理厂,山东青岛266229

出　　处：《化学工业与工程》2020年第6期61-71,共11页Chemical Industry and Engineering

基　　金：国家自然科学基金项目(21878218);天津市科技支撑项目(18ZXSZSF00030);河南师范大学博士科研启动费支持课题(5101229170138)。

摘　　要：建立了A^2/O-MABR耦合的中试系统,在不改变污水处理厂原有A^2/O工艺以及不外加碳源的条件下,利用MABR丰富的微生物群落强化碳和氮的去除。该系统在最适宜参数下运行,COD、NH+4-N和TN的出水水质满足市政污水处理厂一级A排放标准。微生物分析表明MABR生物膜上富集了丰富的脱氮功能菌群,例如Proteobacteria和Bacteroidetes等常规反硝化菌群,以及Thauera和Paracoccus等好氧反硝化菌群。MABR生物膜上丰富的脱氮功能菌群强化了系统对TN的去除。实验结果表明MABR在市政污水处理厂提标改造和强化脱氮方面拥有很大的应用潜力。A pilot system of A^2/O-MABR coupling was established,under the condition that the original A^2/O process of the wastewater treatment plant was not changed and the carbon source was not added,the removal of carbon and nitrogen was enhanced using the rich microbial community of MABR.The system operates under the optimal parameters,the effluent concentrations of COD,ammonia nitrogen and TN meets the discharge standard of class A for municipal wastewater treatment plants.Microbial analysis showed that the MABR biofilm was enriched with rich denitrifying functional flora,such as conventional denitrifying bacteria of Proteobacteria and Bacteroidetes,and aerobic denitrifying bacteria of Thauera and Paracoccus.The rich nitrogen removal functional flora on the MABR biofilm strengthened the removal of TN.The experimental results showed that MABR had great potential application in the upgrading and enhanced nitrogen removal of municipal wastewater treatment plants.

关 键 词：MABR A^2/O 硝化液回流比 溶解氧 脱氮 微生物群落 

分 类 号：X703.1[环境科学与工程—环境工程]