A municipal wastewater treatment plant(WWTP)in Guangdong Province is built and put into operation in 2003.The original process of the WWTP is"anaerobic UASB+high-load biological filter+solid contact tank+biological flocculation sedimentation tank".With the continuous improvement of wastewater discharge standards,the upgrading of the WWTP is imminent.After comprehensive selection of various processes,it is determined that the original process is upgraded to"pure membrane MBBR+magnetic coagulation precipitation".The engineering design of the upgrading project is carried out,and the operation effect of the WWTP after the upgrading is analyzed.The results show that the upgrading process with"pure membrane MBBR+magnetic coagulation precipitation"as the main body has significant advantages,which can save an area of about 2 600 m2.And the WWTP can run continuously and stably after the upgrading.The effluent quality meets the stricter value of the first class A criteria of Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant(GB 18918-2002)and Discharge Limits of Water Pollutants(DB 44/26-2001)in the second period.
关键词
城市污水厂/提标改造/纯膜MBBR/磁混凝/工程化应用
Key words
municipal wastewater treatment plant(WWTP)/upgrading and reconstruction/pure membrane MBBR/magnetic coagulation/engineering application
维普
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