Uranium-containing underground water zero discharge treatment system and method

Abstract

The invention belongs to the technical field of uranium mining and smelting, and particularly relates to a uranium-containing underground water zero-discharge treatment system and method. The system comprises a liquid collecting tank, a lifting pump, electric enrichment equipment, a conductivity meter, a PP membrane filter, a cation exchange resin tower, a valve A, a valve B and a valve C. The method comprises the following steps of 1, collecting uranium-containing underground water into a liquid collecting tank; 2, conveying the uranium-containing underground water from the liquid collecting tank to electric enrichment equipment; 3, discharging or recycling the purified water after passing through a PP membrane filter. and 4, utilizing recycled water. The enriched liquid is softened through a cation exchange resin tower, ions such as Ca<2+> and Mg<2+> in water are reduced, and the phenomenon of supersaturation precipitation of sulfate radicals and the enriched liquid in concentrated water is prevented; and then the solution enters an ion exchange system of an underground immersion smelting workshop, and uranium is further enriched. According to the invention, low-concentration uranium-containing underground water can be treated into purified water and enriched liquid. The purified water can be used in a uranium mine hydrometallurgy workshop in a dispensing manner or discharged.

Description

technical field [0001] The invention belongs to the technical field of uranium mining and smelting, and in particular relates to a zero-discharge treatment system and method for uranium-containing groundwater. Background technique [0002] At present, in the field of in-situ leaching, groundwater treatment methods mainly include natural dilution method, reverse osmosis purification method, etc. The natural dilution method is to use underground natural runoff to recharge and dilute the affected groundwater. This method has a long period and slow effect, and is a passive treatment process. The reverse osmosis purification method uses the permeability of the reverse osmosis membrane to intercept impurity ions by the reverse osmosis membrane under high pressure, and the water passes through the reverse osmosis to form purified water. In recent years, this process has been widely used in the field of sewage treatment. Although there is partially enriched uranium on the concent...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a zero-discharge treatment system and method for uranium-containing groundwater, which solves the problem of uranium-containing groundwater treatment in neutral in-situ leaching mines through the electric enrichment process system, realizes uranium recycling while purifying water, and achieves zero discharge. purpose of discharge

Images