A-A^2/O工艺的脱氮途径分析与运行诊断  

Analysis and diagnosis of A-A^2/O nitrogen removal process

作　　者：潘杨[1] 黄勇[1] 李培[1] 

机构地区：[1]苏州科技学院环境科学与工程学院,江苏苏州215011

出　　处：《苏州科技学院学报（工程技术版）》2012年第2期9-12,49,共5页Journal of Suzhou University of Science and Technology （Engineering and Technology）

基　　金：国家水体污染控制与治理科技重大专项项目(2008ZX07313-002);江苏省"青蓝工程"优秀青年骨干教师人才培养计划资助项目

摘　　要：以江南地区某城市污水处理厂A-A2/O工艺实际运行资料为背景,通过现场分段采样并通过物料衡算对污水处理厂的工艺脱氮效果及相关影响因素进行了分析。结果表明:该污水厂的硝化效果良好,脱氮效率主要受制于反硝化不足,污泥反硝化池、厌氧池、缺氧池以及好氧区总氮分担去除率各占了12%、32%、42%和14%。而污泥脱硝池运行异常以及曝气区溶解氧过高是导致反硝化能力不足的重要原因。Taking A-A^2/O process actual operation data of a municipal sewage treatment plant in the southern region as a case study, the paper analyzed the nitrogen removal process and related factors through the site sec-tion sampling and material balance calculation. The results showed that the nitrification process of the plant was in good condition, and the lack of denitrification was the reason for the low removal efficiency of nitrogen; the share of total nitrogen removal efficiency in the sludge denitrification tank, anaerobic tank, anoxic tank and aero-bic zone was 12%, 32%, 42% and 14%, respectively. The abnormal operation of the sludge denitrification tank and high dissolved oxwen in the aeration area were the main reasons for the insufficient dentitrificafion.

关 键 词：A-A2/O工艺 城市污水 反硝化 溶解氧 

分 类 号：X703[环境科学与工程—环境工程]