Vacuum belt type salt leaching filter and salt-containing wastewater treatment method

The invention relates to a vacuum belt-type salt-leaching filter and a salt-containing wastewater treatment method, by-product salt is pretreated, the whole process route is uniformly linked through the processes of continuous filtration by the vacuum belt-type salt-leaching filter, rinsing, salt-containing wastewater adsorption decoloration, saturated salt water recycling, discharging and the like, and the continuity of the whole process is ensured. According to the invention, the original multi-effect evaporation process route is changed into the saturated salt water vacuum suction filtration process route, so that the equipment investment and the energy consumption are reduced, the operation cost is reduced, the field environmental pollution is reduced, the salt treatment automation flow of the subsequent process is improved, and the clean production requirement concept is met. Part of the filtrate with a dark color before adsorption and decoloration is directly transferred to an environmental protection s