湖泊生态补水下污水处理厂极限脱氮工艺选择与应用研究  

The research on the selection and application of extreme nitrogen removal technology in sewage treatment plant for lake replenishment

作　　者：陈鹏 杜敬 马民 宫玲 CHEN Peng;DU Jing;MA Min;GONG Lingi(Wuhan Urban Drainage Development CO.,Ltd.,Wuhan 430061,China)

机构地区：[1]武汉市城市排水发展有限公司,武汉430061

出　　处：《给水排水》2024年第S1期124-126,131,共4页Water & Wastewater Engineering

摘　　要：为满足湖泊生态补水总氮1.5mg/L的限制要求,针对某污水处理厂(40万m^(3)/d)提标工程极限脱氮工艺段展开选择与应用研究。通过工艺比选和中试研究,确定采用二级生物工艺单元原位提标HPB工艺联合两级反硝化生物滤池工艺。中试试验结果显示,上述联合工艺在水温22℃左右时,出水TN、NH_(3)-N、COD指标可稳定达到地表湖库Ⅳ类水要求。In order to meet the limit requirements of TN replenishment in lakes(1.5 mg/L),the selection and application of the extreme nitrogen removal process section of a sewage treatment plant(40×10^(4)m^(3)/d)were carried out.Through process comparison and pilot research,it is determined that the second-level biological process unit in-situ standard-up HPB process combined with two-stage DNF process is used.The test results show that the effluent TN,NH_(3)-N and COD indicators can steadily meet the requirements of ClassⅣwater requirements for surface lake reservoirs at the water temperature of about 22℃.

关 键 词：深度脱氮 HPB 反硝化生物滤池 总氮 地表Ⅳ类 

分 类 号：TU992[建筑科学—市政工程]