Treatment method of salt mud wastes produced in chlor-alkali industry and application thereof

The invention relates to a treatment method of salt mud wastes generated in chlor-alkali industry. The treatment method comprises the following steps: washing salt mud liquid with water to obtain supernatant liquid and concentrated salt mud liquid; performing pressure filtration dehydration on the concentrated salt mud liquid to obtain filtrate and dehydrated salt mud; grinding and sieving the dehydrated salt mud to obtain powder salt mud. After the salt mud liquid is treated according to the method provided by the invention, the salt mud liquid can replace part of commercial desulfurizing agent quicklime powder and be used for semi-dry desulfurization of boiler flue gas. The treatment process of the salt mud liquid in the method provided by the invention is short, the method is simple andeasy to operate, the treatment cost is low, and no 'three wastes' are discharged in a treatment process, so that the problem of treating the salt mud liquid in the chlor-alkali industry is solved, and treatment of wastes wit