短程深度脱氮中试工艺的低温启动和维持  

Start-up and Maintenance Method for Short-Cut Advanced Nitrogen Removal Process in a Pilot-Scale Reactor at Low Temperature

作　　者：顾升波[1,2] 王淑莹[1] 彭永臻[1] 

机构地区：[1]北京工业大学环境与能源工程学院,北京市水质科学与水环境恢复工程重点实验室,北京100124 [2]北京市市政工程设计研究总院,北京100082

出　　处：《环境科学》2013年第8期3164-3170,共7页Environmental Science

基　　金：国家水体污染控制与治理科技重大专项(2012ZX07302-001-04-01);北京市属高等学校人才强教计划项目(PHR20090502)

摘　　要：试验采用有效体积为7.0 m3的SBR中试反应器处理生活污水,考察了低温条件下短程深度脱氮工艺的启动方法及稳定性.利用基于鼓风机频率(BF)和pH的实时控制策略对SBR系统进行实时控制.结果表明,SBR系统在低温条件(11～16℃)和50 d内快速启动短程深度脱氮工艺,亚硝酸盐积累率从19.8%上升到90%.在中低温条件(9～28℃)下短程深度脱氮性能维持长达550 d,亚硝酸盐积累率始终维持在95%左右,出水TN浓度维持在3 mg·L-1,TN去除率维持在95%以上.由此可见,低温下启动SBR短程深度脱氮工艺并长期维持完全可行.In order to test the start-up and maintain method for short-cut advanced nitrogen removal process at low temperature,this study used a pilot-scale SBR process with a working volume of 7.0 m3 to treat domestic wastewater.Real-time control strategy based on blower frequency（BF） and pH was applied to control the pilot-scale SBR process.Results showed that short-cut nitrification process achieved within 50 days at low temperature（11-16℃）,and the nitrite accumulation rate（NAR） of SBR process increased from 19.8% to 90%.Short-cut nitrification process in pilot-scale SBR was maintained for as long as 550 days in the temperature range of 9-28℃,and NAR was maintained above 95%.Meanwhile,the total nitrogen（TN） in effluent was 3 mg·L-1 and the TN removal efficiency was above 95%.Therefore,it is feasible to start-up and maintain the short-cut advanced nitrogen removal process under low temperature condition in the SBR process.

关 键 词：低温启动 中试SBR 短程硝化反硝化 实时控制 长期维持 

分 类 号：X703.1[环境科学与工程—环境工程]