紧凑用地的污水处理厂工艺设计  

Process Design of Wastewater Treatment Plant under Land Constraint

作　　者：刘金星 胡邦 程明涛 LIU Jin-xing;HU Bang;CHENG Ming-tao(Huaxin Design Group Co.Ltd.,Wuxi 214072,China)

机构地区：[1]华昕设计集团有限公司,江苏无锡214072

出　　处：《中国给水排水》2024年第22期58-62,共5页China Water & Wastewater

摘　　要：江苏省某污水处理厂四期扩建工程总设计规模为5.0×10^(4) m^(3)/d,生化处理采用“Bardenpho生化池+二沉池”工艺,深度处理采用“反硝化滤池+高效沉淀池+紫外线消毒”工艺,设计出水水质执行《太湖地区城镇污水处理厂及重点工业行业主要水污染物排放限值》(DB 32/1072—2018)中表2的标准,其中COD≤41 mg/L。该工程将生化池、二沉池、污泥泵房、二级提升泵房合建,将反硝化滤池、反洗风机房、反洗废水池合建,并在高效沉淀池中投加微砂,提高处理负荷,大大减少了污水厂占地面积,解决了污水厂用地紧张的问题。The total design capacity of the phase Ⅳ expansion project in a wastewater treatment plant in Jiangsu Province is 5.0×10^(4) m^(3)/d.The secondary biochemical treatment system consists of Bardenpho biochemical tank and secondary settling tank,while the advanced treatment utilizes a combination of denitrification filter,high-efficiency settling tank and ultraviolet disinfection.The design effluent quality is required to meet the limit in table 2 specified in Discharge Standard of Main Water Pollutants for Municipal Wastewater Treatment Plant & Key Industries of Taihu Area(DB 32/1072-2018),where COD shall not exceed 41 mg/L.In this project,the biochemical tank,secondary settling tank,sludge pumping house,and secondary pumping house were constructed as a unified facility,the denitrification filter,backwashing blower chamber,and backwashing wastewater tank were integrated into a single system,and micro-sand was introduced into the high-efficiency settling tank.These designs enhanced the treatment capacity while significantly reducing the footprint area of the wastewater treatment plant and addressing the land constraint issue.

关 键 词：污水处理厂 组合式池体 紧凑用地 工艺设计 

分 类 号：TU992[建筑科学—市政工程]