The process flow and design parameters are introduced of the wastewater treatment in the extrac-tion section for raw material preparation before the synthesis of a ternary precursor in Sichuan Province.According to the water quality characteristics of the wastewater,a treatment process combining air flota-tion deoiling,chemical precipitation removal of heavy metals,ozone catalytic oxidation removal of COD,resin deep removal of heavy metals and MVR salt evaporation was adopted to produce industrial anhydrous sodium sulfate product(purity of 95％,class Ⅲ qualified product),and achieve zero discharge of wastewater,which provides important reference value for the treatment of similar industrial wastewater.
关键词
萃取/废水/气浮/臭氧催化氧化/MVR蒸盐
Key words
extraction/wastewater/air flotation/ozone catalytic oxidation/MVR salt evaporation
维普
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