Material and method for treating uranium-containing wastewater

Abstract

The invention belongs to the field of uranium mine environment treatment, and discloses a material and method for treating uranium-containing wastewater. According to the method, based on the adsorbability of TiO2, a TiO2 photocatalysis technology is introduced into the field of uranium-containing wastewater; a series of comparative experimental studies prove that TiO2 can treat U (VI) in the uranium-containing wastewater through adsorption-photocatalytic reduction, 99.0% of uranium in the uranium-containing wastewater can be fixed to the maximum extent, so that the TiO2 can be filled into a permeable reactive barrier (PRB) to be used for treating the uranium-containing wastewater and can be used as a novel uranium-containing wastewater treatment material; according to the material, the nano TiO2 is added into auranium-containing wastewater solution. Compared with other methods, the method for treating the uranium-containing wastewater by the TiO2 adsorption and photocatalytic reduction has the advantages of low energy consumption, no toxicity, good selectivity, quickness, high efficiency, capability of being carried out at normal temperature and normal pressure and the like.

Description

technical field [0001] The invention belongs to the field of uranium ore environmental treatment, and in particular relates to a material and method for treating uranium-containing wastewater. Background technique [0002] With the rapid development of science and technology and nuclear power, in various fields of the nuclear industry, such as uranium mining and tailings storage, refining and processing of hydrometallurgy uranium, nuclear fuel manufacturing, nuclear power plant operation, reactor fuel reprocessing, etc., will generate a large amount of How to properly treat these radioactive uranium-containing wastewater is very important for protecting the environment, maintaining national safety and maintaining the sustainable development of nuclear power. [0003] As we all know, uranium in radioactive uranium-containing wastewater mainly coexists with other ions and compounds in two valence states of U(VI) and U(IV), among which U(IV) can form a stable complex with inorg...

AI Technical Summary

Problems solved by technology

In addition, a small number of scholars believe that the photocatalytic material TiO 2 Under the excitation of sufficient energy, U(VI) in uranyl can be reduced to U(IV), but at this stage, TiO 2 Applied to the treatment process of uranium-containing wastewater, more emphasis is placed on its adsorption, and TiO has not been seen 2 Application of Photocatalytic Technology in the Treatment of Wastewater Containing Uranium

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