Design and research of uranium-containing wastewater treatment equipment based on new organometallic framework materials (MOF-808)

Abstract

With the significant increase in the amount of natural uranium mining in various countries around the world, a large amount of waste rocks are piled up in the tailings pond. If the uranium-containing wastewater is not treated, it will bring serious environmental problems. After related experiments in the laboratory, it is measured that the adsorption rate of high-tech products-MOF-808 material to uranium ions can reach 97% (the optimal pH=7.0, and the optimal dosage is 0.2mg/L). It can be used as a good adsorption material. Based on the high-efficiency selective adsorption of this material to uranium, a set of equipment using MOF-808 was designed in this paper. This device adopts improved intermittent processing, high integration and automation level, and small floor space. According to the desorption characteristics of the material, a simple membrane cleaning method is designed to recover high-concentration uranium-containing cleaning liquid, which greatly reduces the amount of mud and can produce considerable economic benefits. In addition, cleaning and operation can be carried out at the same time, realizing continuous uranium-containing wastewater treatment, which meets the requirements of energy saving and emission reduction, and is beneficial to the construction of green mines.