Complete set of equipment for waste reduction and resource utilization Evaporation, separation and crystallization of mixed salt wastewater Evaporation crystallization drying of desulfurization wastewater Steel plant sintering machine head ash dechlorination and potassium extraction Separation and recovery of potassium from hazardous waste incineration fly ash Recovery of copper and nickel from PCB etching waste liquid to produce ammonium chloride Reuse of Coal Chemical Waste Water and Saltwater Resource utilization of fine chemical waste salt Reduction and separation of acid washing wastewater