Research on Zero Discharge Process of Saline Wastewater in Coal Chemical Enterprises
A new zero discharge process technology for saline wastewater in coal chemical industry is proposed to address the problem of large discharge and serious pollution.Salt containing wastewater is first subjected to biochemical treatment,membrane separation treatment,and then added to the forced evaporation system to form evaporative crystals for fixation.Then,this part of the solid is treated as hazardous waste.The secondary steam condensate generated during the process can be used as cleaning water for the system and recycled.The non condensable gas in the system can be extracted and discharged into the air through a water ring vacuum pump,thus achieving zero discharge of saline wastewater from coal chemical enterprises.
coal chemical industrysalt containing wastewaterforced evaporationzero emissions
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