Method and device for recovering sulfuric acid and copper in industrial sulfuric acid wastewater containing copper sulfate

The invention relates to a method and device for recovering sulfuric acid and copper in industrial sulfuric acid wastewater containing copper sulfate, and the method comprises the following steps: S1, filtering the industrial sulfuric acid wastewater containing copper sulfate to be treated to obtain filtrate, and heating and evaporating the filtrate to obtain an evaporated concentrated solution and evaporated gas; s2, condensing the boil-off gas obtained in the step S1 and then discharging the condensed boil-off gas; s3, cooling and crystallizing the evaporation concentrated solution obtained in the step S1, centrifuging to obtain copper sulfate crystals and sulfuric acid water, and recovering the sulfuric acid water; and S4, dissolving the copper sulfate crystal obtained in the step S3 in water, electrolyzing to obtain pure copper and sulfuric acid water, and recovering the pure copper and the sulfuric acid water. Compared with the prior art, the concentration of the recovered sulfuric acid is high, the yiel