新型短程硝化同步反硝化除磷工艺的快速启动  

Rapid Start-up of a Novel Shortcut Nitrification Coupled with Simultaneous Denitrifying Phosphorus Removal Process

作　　者：吴春英 WU Chun-ying(College of Resources and Environmental Engineering, Jilin Institute of Chemical Technology, Jilin132022, China)

机构地区：[1]吉林化工学院资源与环境工程学院

出　　处：《中国给水排水》2019年第9期111-114,119,共5页China Water & Wastewater

基　　金：吉林化工学院校级重大科研项目(2018028);吉林省教育厅项目(20160136);吉林市科技局科技创新项目(20163301)

摘　　要：构建以厌氧/好氧/缺氧/快速曝气单元组成的短程硝化同步反硝化除磷工艺,并在常温、低氧条件下用于处理实际城市污水。结果表明,设定水力停留时间(HRT)为9h,污泥龄为20-25d,污泥浓度(MLSS)为2000-4000mg/L,且控制好氧1池的溶解氧(DO)浓度为1.5-2mg/L,好氧2池的DO为0.5-1mg/L,并投加氢氧化钠溶液调控好氧池的pH值在8.5以上,可以实现短程硝化反硝化的快速启动,且出现了反硝化除磷现象,出水水质可达到《城镇污水处理厂污染物排放标准》(GB18918-2002)的一级B标准。A novel process consisting of anaerobic ( An)- aerobic (0],02)- anoxic( A], A2)- fast aeration ( 03 ) units was proposed to achieve shortcut nitrification coupled with simultaneous denitrifying phosphorus removal, and it was applied in real municipal wastewater treatment under ambient temperature and low oxygen condition. The results showed that shortcut nitrification and denitrification was rapidly realized and denitrifying phosphorus removal phenomenon appeared when hydraulic retention time ( HRT) was 9 hours, sludge retention time was 20 - 25 (1, sludge concentration was 2 000 - 4 000 mg/L, dissolved oxygen( DO)of aerobic unit one and two were 1.5-2 mg/L and 0. 5 - 1 mg/L and pH was more than 8. 5. In addition , the effluent quality could meet the first level B standard of Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant ( GB 18918 - 2002).

关 键 词：短程硝化反硝化 反硝化除磷 反硝化聚磷菌 氨氧化细菌 亚硝化率 

分 类 号：TU992[建筑科学—市政工程]