AAO+二沉池叠加结合现有处理单元的污水厂工艺改造方案  

Process Reconstruction Scheme of AAO+Secondary Sedimentation Tank Superimposed with Existing Treatment Unit of the WWTP

作　　者：杨魁志 YANG Kuizhi(China Railway Second Institute Engineering Group Co.,Ltd.,Chengdu 610031,China)

机构地区：[1]中铁二院工程集团有限责任公司,四川成都610031

出　　处：《净水技术》2024年第9期173-181,共9页Water Purification Technology

摘　　要：攀枝花某污水厂原设计规模为1.9×10^(4)m^(3)/d,出水水质为一级B排放标准。随着该市对水环境保护要求的不断提高,对再生水用量的日益增加,原有的尾水排放标准已不能满足相关需求,因此,需要对该污水厂进行提标升级改造。而该厂区面临地理位置空间受限、预留用地不足、场地异形等难题。设计团队因地制宜,平面科学布局,立体深挖潜能,采用了AAO+二沉池空间叠加组合工艺的布置形式,同时充分挖掘既有建构筑物的潜能,出水水质由一级B排放标准提标升级为一级A排放标准。该工程土地利用效率高,有良好的社会效益和环境效益,为山区城市用地紧张的污水处理厂提标升级改造提供了新的思路。The original design scale of a wastewater treatment plant(WWTP)in Panzhihua is 1.9×10^(4)m^(3)/d,and the effluent quality is first class B discharge standard.With the continuous improvement of the city's requirements for water environmental protection and the increasing use of reclaimed water,the original tailwater discharge standards can no longer meet the relevant needs,so the WWTP needs to be upgraded and reconstructed.However,the WWTP is faced with problems such as limited geographical location,insufficient reserved land,and special-shaped site.The design team adapted measures to local conditions,laid out the plane scientifically,and dug deep into the potential in three dimensions,adopted the layout form of AAO+secondary sedimentation tank space superposition combination technology,and fully tapped the potential of the existing buildings,and upgraded the effluent quality from the first class B discharge standard to the first class A discharge standard.The project has high land use efficiency and good social and environmental benefits,which provides a new idea for the upgrading and reconstructing of WWTPs with tight urban land in mountainous areas.

关 键 词：AAO 二沉池 污水厂 提标升级 节约用地 

分 类 号：TU992[建筑科学—市政工程]