A certain incineration power plant in Guizhou has a designed treatment capacity of 800 m3/d for leachate,the treatment pro-cess is"pre-treatment+anaerobic+two-stage AO+external ultrafiltration+nanofiltration+reverse osmosis".The effl uent qual-ity meets the supplementary water standard of the open circulation cooling water system in"The Reuse of Urban Recycling Water―Water Quality Standard for Industrial Uses(GB/T 19923-2005)"[1],and is reused in the cooling tower.The nanofiltration concentrate is softened by adding medicine and then treated by DTRO to achieve the reduction of the concentrate,the comprehensive utilization of the concentrated solution plant area ultimately achieves zero discharge of leachate.
关键词
焚烧发电/渗滤液/化学软化/浓液减量/零排放
Key words
incineration power generation/leachate/chemical softening/concentrated liquid reduction/zero emissions
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