Analysis on Current Situation of Concentration Technology of Desulfurization Wastewater
With the rapid development of industry,the amount of wastewater generated in China has been increasing year by year.Among them,desulfurization wastewater is a typical high salt wastewater.In recent years,concentration reduction technology has become a hot research topic for zero discharge of desulfurization wastewater.In the market,there are mainly two types of wastewater concentration technologies,namely membrane method and thermal method,with thermal method being the main method at present.This paper reviews the technical principles,process flow,and technical characteristics of flue gas concentration,multi effect concentration(represented by three effect concentration),and air concentration,and then compares and analyzes three thermal concentration technologies from the perspectives of technology,safety,and economy by taking the zero discharge project of desulfurization wastewater in a certain enterprise as an example.The research results indicate that compared to flue gas concentration and three effect concentration,air concentration has better technical,safety,and economic benefits.
desulfurization wastewaterthermal concentrationflue gas concentrationmulti effect concentrationair concentration
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