多段AO/高效沉淀/反硝化滤池用于准Ⅳ类标准污水厂  

Application of Multi-stage AO+High Efficiency Sedimentation+Denitrification Filter Process in a WWTP with Quasi Class Ⅳ Effluent Standard

作　　者：陈良 莫少德 周波[1] 齐国辅 侯方东[1] CHEN Liang;MO Shao-de;ZHOU Bo;QI Guo-fu;HOU Fang-dong(East China Branch,China Machinery International Engineering Design&Research Institute Co.Ltd.,Nanjing 210023,China;Zhaoqing New Area's City Land Reserve Centre,Zhaoqing 526000,China)

机构地区：[1]中机国际工程设计研究院有限责任公司华东分院,江苏南京210023 [2]肇庆新区土地储备中心,广东肇庆526000

出　　处：《中国给水排水》2021年第10期75-78,共4页China Water & Wastewater

摘　　要：广东某城镇污水处理厂首期工程规模为2.5×104 m3/d,出水水质执行地表水准Ⅳ类排放标准。生物处理段采用多段AO生化池,能够充分利用原水碳源,减少回流,节约能耗,提高脱氮除磷效果。深度处理采用高效沉淀池+反硝化深床滤池工艺,以强化总氮、总磷和SS的去除。介绍了主要构筑物设计参数,分析了多段AO和反硝化深床滤池脱氮性能,总结了运行过程中存在的问题,并提出相应措施。实际运行数据表明,出水水质能够稳定达到准Ⅳ类标准。The design scale of the first stage of a wastewater treatment plant in Guangdong was 2.5×104 m3/d. The effluent was required to meet the standard of surface water quasi class Ⅳ. To improve the removal efficiencies of nitrogen and phosphorous, multi-stage AO process was adopted as biochemical treatment technology, which could fully take advantage of the influent carbon source and save energy via reducing backflow. High efficiency sedimentation tank and denitrification filter were adopted to strengthen the removal efficiencies of TN, TP and SS in advanced treatment process. The design parameters of main structures were introduced. The denitrification performance of multi-stage AO and denitrification filter was analyzed. Corresponding measures were proposed to solve the existing problems during the operation process. The actual operating data showed that the effluent quality could stably reach the quasi class Ⅳ standard.

关 键 词：污水处理厂 多段AO生化池 反硝化深床滤池 

分 类 号：TU992.3[建筑科学—市政工程]