Landfill Leachate Treatment Project in a Municipal Domestic Waste Power Plant
In order to effectively treat leachate,the combined process of"Pre-settling regulating tank+hydrolytic acidification+high efficiency anaerobic+A/O-MBR+Nanofiltration+Reverse Osmosis"was adopted to treat the leachate from a municipal domestic waste power plant.At the same time,the common problems of biological foam,membrane pollution and membrane concentrate during the operation of similar systems were analyzed and expounded.The actual operation results showed that the process can treat the leachate produced by the power plant effectively.The removal rates of CODCr,BOD5,NH3-N and SS could reach 99.92％,99.97％,99.95％and 100％respectively.The water quality of the effluent could meet the requirements of the supplementary water quality of open circulating cooling water system in Reuse of Urban Recycling Water-Water Quality Standard for Industrial Uses(GB/T19923-2005).The actual running data showed that the system run steadily with low treat-ment cost and no secondary pollution.
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