A^(2)/O+反硝化深床滤池在城镇污水处理厂深度经济脱氮的运行优化  

Operation Optimization of Advanced and Economic Nitrogen Removal in A^(2)/O+Deep Denitrification Bed Filter Process in Municipal Wastewater Treatment Plat

作　　者：徐熊鲲 戚阳军 蒋沛廷 王勇 伍刚 谢翼飞[3] XU Xiongkun;QI Yangjun;JIANG Peiting;WANG Yong;WU Gang;XIE Yifei(Haitian Water Group Co.,Ltd,Chengdu 610299,China;Meishan Pengshan Haitian Water Co.,Ltd.,Meishan 620860,China;Chengdu Institute of Biology,Chinese Academy of Sciences,Chengdu 610041,China)

机构地区：[1]海天水务集团股份公司,四川成都610299 [2]眉山市彭山海天水务有限公司,四川眉山620860 [3]中国科学院成都生物研究所,四川成都610041

出　　处：《水处理技术》2024年第2期130-134,共5页Technology of Water Treatment

基　　金：中国科学院战略生物资源服务网络计划项目(KFJ-BRP-009);四川省重点研发项目(2020YFS0021);四川省环境治理与生态保护重大科技专项(2019YFS0504)。

摘　　要：脱氮是当前城镇污水处理的重点,其中A^(2)/O+反硝化滤池工艺是生活污水处理主流工艺,四川省岷江流域某城镇污水处理厂通过优化进水流量分配比、调节溶解氧和内回流比、碳源筛选等工艺试验,综合考察了工艺调控措施对系统脱氮效能的提升以及脱氮成本的经济化控制。结果表明,A^(2)/O池进水100%进入厌氧区、内回流比200%、A^(2)/O池末端溶解氧控制在1.5 mg/L、反硝化深床滤池投加液体复合碳源,在有效深度脱氮的同时节约运行费用,总氮指标满足岷沱江标准,脱氮费用降低0.37元/m^(3)。Nitrogen removal has been the research emphasis on the sewage treatment.A^(2)/O+DBDF has been the main processe in wastewater treatment.Effect of process control measures on nitrogen removal efficiency of sewage system by optimizing influent flow distribution ratio,changing the dissolved oxygen concentration and internal reflux ratio,adding carbon source in a wastewater treatment plat of Minjiang River basin in Sichuan Province.The results showed that advanced and economic Nitrogen removal came true when 100%of the sewage came from A^(2)/O intake enters anaerobic zone,and nitrate recirculation ration were kept down to 200%,and dissolved oxygen were controlled within 1.5mg/L at end of A^(2)/O tank,and composite carbon source compoudswere added to deep denitrification bed filter Process.The TN were in line with the standard of Water Pollutants for Tuojiang&Minjiang River Basin in Sichuan Province,the costs of nitrogen removal were declined by 0.37 yuan/m^(3).

关 键 词：脱氮 进水流量分配比 溶解氧 回流比 复合碳源 

分 类 号：X703.1[环境科学与工程—环境工程]