He jishu (Aug 2024)
Consideration on the determination of the discharge limit on liquid effluent from associated radioactive mines
Abstract
BackgroundAt present, only the rare earth industry has established discharge limits for waste water generated from associated radioactive mines. Liquid effluent from associated radioactive mines industries other than rare earths should satisfy with the requirements of Integrated Wastewater Discharge Standard (IWDS). However, discharge limits of IWDS are disputable to be implemented, hence not suitable for the development and utilization of associated radioactive mines.PurposeThis study aims to consider the need of establishing designated standards of discharge limits on liquid effluent from related radioactive mines wastewater.MethodsFirstly, investigation was conducted on the types and concentration of radionuclides of wastewater from associated radioactive mine, as well as the level of radioactive wastewater treatment technology. Results on the discharge limits for natural radioactive isotopes both in China and abroad were examined and compared. Then, the types of radionuclides and discharge limits to be controlled in the development and utilization of liquid effluent from associated radioactive mines were studied in a scientific manner. Finally, the method of establishing discharge limits for liquid effluents from associated radioactive mines by referring to the uranium mining and metallurgical industries was proposed.Results & ConclusionsThe specific standard on discharge limits for wastewater treatment from associated radioactive mines has a significant impact on regulating the discharge of effluent in China and reducing the radiation environmental impact of associated radioactive mines. It is reasonable to refer to the standard limits of uranium mining and metallurgy. Liquid effluent from associated radioactive mines industries other than rare earths should satisfy with the requirements of IWDS.
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