氯碱行业废硫酸的净化

Purification of waste sulfuric acid formed in chlor-alkali industry

通过对烧碱生产过程中产生的危险废物——废硫酸进行脱氯试验,降低了废硫酸中的游离氯,使硫酸达到工业回用条件并继续回用至生产装置,实现废硫酸的无害化、无毒化处理;同时,防止了危险废物的再运输及处理过程中产生的运行风险。

Through the dechlorination test of waste sulfuric acid,a hazardous waste produced in caustic soda production process,the free chlorine in waste sulfuric acid is reduced,so that sulfuric acid can meet the industrial reuse condition and be reused to the production plant.Therefore,the harmless and non-toxic treatment of waste sulfuric acid is realized,and at the same time the operational risk in the re-transportation and treatment of the hazardous waste is prevented.