This article briefly elaborates the characteristics and hazards of high salt wastewater,and then introduces the research progress of several mainstream high salt wastewater treatment processes.At the same time,taking the production wastewater of a chemical enterprise in Jiangsu as the research object,the removal effect of composite electrochemical process on salt and organic pollutants in high salt wastewater was analyzed.When the voltage of the electrochemical coupling integrated device is set to 80 V,the circulating flow rate is 1 m3/h,and the reaction time is 150 minutes,the COD removal rate is 61.9％,and the BOD5 removal rate is 36.1％.Further electrochemical oxidation treatment is carried out on the freshwater produced water of the integrated device,and the final COD removal rate is 80.9％,salt removal rate is 72.5％,and the BOD5/COD value is increased from 0.11 to 0.25.The biodegradability of the wastewater is significantly improved.This indicates that electrochemical processes have unique advantages in the treatment of complex,high salt,and difficult to degrade industrial wastewater.
electrochemistryhigh salt organic wastewaterpollutant degradationwater quality characteristics
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