The treatment of high-salt wastewater has always been a problem for production enterprises since its salt content is high as well as it is difficult to be treated and cannot be directly discharged into the environment. The harmless treatment of high-salt wastewater is achieved by combining such technologies as membrane treatment,ozonation and evap-oration crystallization as well as the salt in water is concentrated into such crystalline salts as sodium chloride and sodium sulfate. As a result,the treated water is for recycling circuit.
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