基于原址不停水目标的某污水厂提标改扩建工程设计与运行  

Design and Operation of Upgrading and Expansion of WWTP Based on In-Situ Land Use and Non-Stop Operation during the Renovation Period

作　　者：高靖伟 韩磊 江乐勇 刘发 李赛 GAO Jingwei;HAN Lei;JIANG Leyong;LIU Fa;LI Sai(Xinkai Environment Investment Co.,Ltd.,Beijing 101101,China;Beijing Sound Environmental Engineering Co.,Ltd.,Beijing 101102,China)

机构地区：[1]信开环境投资有限公司,北京101101 [2]北京桑德环境工程有限公司,北京101102

出　　处：《净水技术》2024年第10期167-175,共9页Water Purification Technology

摘　　要：原污水处理厂现状规模为8万m^(3)/d,出水执行《城镇污水处理厂污染物排放标准》(GB 18918—2002)中的一级B标准,采用氧化沟+二沉池处理工艺,占地面积约为53 395 m^(2)。采用以膜生物反应器(MBR)+紫外光催化臭氧氧化为主体的改造工艺路线,满足不新增用地要求,规模扩建至18万m^(3)/d,吨水占地仅为0.296 m^(2)/m^(3),出水标准提高至北京市《城镇污水处理厂水污染物排放标准》(DB11/890—2012)中的B标准。充分利用原有处理单元进行提标改扩建,主要为利旧扩增粗格栅提升泵房、将原氧化沟改造为改良厌氧-缺氧-好氧(AAO)工艺,主体生化单元按(10万+8万) m^(3)/d两系列模式先后实施。提标改扩建工程共分三阶段实施,实现施工期间不停水且维持原出水标准。预处理及深度处理单元土建按远期建设,总投资约为5.4亿元,其中相关设计思路可供类似工程参考。The current treatment capacity of this wastewater treatment plant(WWTP)is 80000 m^(3)/d,and the standard of effluent is the national first class B standard.The oxidation ditch+secondary sedimentation tank process is adopted with area coverage of 53395 m^(2).The main upgrading process of membrane bio-reactor(MBR)+ultraviolet photocatalytic ozone oxidation combined oxidation is adopted to meet the requirement of no new land use.The scale can be expanded to 180000 m^(3)/d,and tons of water covered only 0.296 m^(2)/m^(3).The effluent standard raises to the B standard in Beijing Discharge Standards for Water Pollutants from Urban Sewage Treatment Plants(DB11/890—2012).In full use of the original treatment unit for upgrading reconstruction and expansion,the original coarse screen lifting pump room process is used through expansion,the original oxidation ditch process is transformed into modified anaerobic-anoxic-oxic(AAO)process.The main biochemical unit is successively implemented according to the two series of models of(100000+80000)m^(3)/d.Reconstruction and expansion requirements are realized in three stages to achieve uninterrupted water supply and maintain the original effluent standard during construction.Civil construction of pre-treatment and advanced treatment unit according to the long-term construction,the total investment is about 540 million yuan,of which the relevant design ideas can be used as reference for similar projects.

关 键 词：膜生物反应器(MBR) 紫外光催化臭氧氧化 提标改扩建 不新增用地 不停水 

分 类 号：TU992[建筑科学—市政工程]