摘要
某市政污水处理厂设计总规模为30×10^4m^3/d,其中一期工程提标改造规模为20×10^4m^3/d,二期扩建规模为10×10^4m^3/d。一期工程采用MSBR工艺,原出水水质执行《城镇污水处理厂污染物排放标准》(GB 18918—2002)的一级B标准,提标改造工程增加"反硝化滤池+微砂高效沉淀池"深度处理工艺;二期扩建工程采用"初沉池+曝气生物滤池(两段式:前置反硝化+后置硝化)+微砂高效沉淀池"工艺,提标改造及扩建工程实施后出水水质执行一级A标准。该组合工艺处理负荷高、占地面积小,实际运行结果表明,各项出水指标可以稳定达到设计要求。
The total design scale of a municipal wastewater treatment plant is 30×10^4 m^3/d,and the scale of phase Ⅰ upgrading project is 20×10^4 m^3/d,phase Ⅱ expansion project is 10×10^4 m^3/d.The phase Ⅰ project adopted the MSBR process,and the original effluent quality implemented the first level B standard based on Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant(GB 18918-2002).The phase Ⅰ upgrading project added the advanced treatment process of"denitrification filter+micro-sand high-efficiency sedimentation tank".The treatment process of phase Ⅱ expansion project adopted the process of"primary sedimentation tank+biological aerated filter(twostage:pre-denitrification+post-nitration)+micro-sand high-efficiency sedimentation tank".After the implementation of the upgrading and expansion project,the quality of effluent was required to meet the first level A standard.The combined process had the advantages of high processing load and small footprint.The actual operating results showed that the various effluent indicators could stably meet the design requirements.
作者
刘杨华
陈波
刘丽
谢青松
LIU Yang-hua;CHEN Bo;LIU Li;XIE Qing-song(Yangtze Ecology and Environment Co.Ltd.,Wuhan 430000,China)
出处
《中国给水排水》
CAS
CSCD
北大核心
2020年第14期109-112,共4页
China Water & Wastewater
