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.
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)
出处
《中国给水排水》
CAS
CSCD
北大核心
2024年第22期58-62,共5页
China Water & Wastewater
关键词
污水处理厂
组合式池体
紧凑用地
工艺设计
wastewater treatment plant
modular tank
land constraint
process design
