In the paper,it is introduced current treatment processes and utilization ways of coking high salinity wastewater as well as analyzed the restraining factors and solutions for technologies of salt separation and crystallization in treatment of coking wastewater.The treatment scheme of deep oxidation,salt separation and crystallization for coking high salinity wastewater is adopted by a coke making enterprise based on the existing biochemical treatment,deep treatment and membrane concentration treatment to further remove such pollutants as organic matters,ammonia nitrogen and fluoride in coking high salinity wastewater so that wastewater recycling is realized.Moreover,the recycling and zero discharge of coking wastewater are realized through producing such two high quality by products of crystal salt as sodium chloride and so-dium sulfate by evaporation crystallization.
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