济南华山全地下水质净化厂AAO+MBR工艺设计

Design of AAO and MBR Process of Huashan Underground Wastewater Purification Plant in Jinan

华山水质净化厂为济南市首座全地下污水处理厂,该厂位于华山湖景区内,面积1.96 hm^(2),设计处理规模3×10^(4) m^(3)/d,总投资1.76亿元。污水、污泥处理单元以及加药间、鼓风机房等附属单元合建于地下箱体内,箱体分为负一检修层和负二池体层,顶部为景观绿化层。污水采用预处理+AAO+MBR+紫外线消毒处理工艺,出水COD、BOD_(5)、NH_(3)-N、TP满足《地表水环境质量标准》(GB 3838—2002)Ⅳ类水质标准,其余指标满足《城镇污水处理厂污染物排放标准》(GB 18918—2002)一级A标准,出水作为景观用水回补景区湖水。

Huashan Wastewater Purification Plant is the first underground wastewater treatment plant in Jinan.The plant is located in Huashan Lake scenic area with a footprint area of 1.96 hm^(2).The designed treatment capacity was 3×10^(4) m^(3)/d,and the total investment was 176 million yuan.Sewage and sludge treatment unit,dosing room,blower room and other auxiliary units are built in the underground box.The underground box is divided into two layers,namely the first floor underground(maintenance layer)and the second floor underground(structure layer).The ground area is planned to be a green landscape.The treatment process consists of pre-treatment,AAO,MBR and UV disinfection.The COD,BOD_(5),NH_(3)-N and TP in the effluent meet the classⅣcriteria specified in Environmental Quality Standards for Surface Water(GB 3838-2002),and other indices meet the first level A criteria specified in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant(GB 18918-2002).The effluent is discharged as landscape water to supplement the lake water in the scenic area.