Shulou(Shulou.com)11/24 Report--

Thanks to CTOnews.com netizen ZKSen for the clue delivery! CTOnews.com, October 12, according to the official news of Southwest University of Science and Technology, the university made a major breakthrough in radioactive waste treatment research. An electric furnace for glass curing laboratory of medium and low level radioactive waste was born here, and successfully produced glass curing products of simulated nuclear waste through experiments, which marked a zero breakthrough in glass curing technology and process research of medium and low level radioactive waste in China.

According to reports, a scientific research team led by Professor Wang Xiaoqiang of the National Defense key discipline Laboratory of Nuclear waste and Environmental Safety of Southwest University of Science and Technology has developed a laboratory electric furnace test platform with the characteristics of compact structure and the application of bubbling stirring to accelerate conversion efficiency, fast response and controllable gas lift overflow discharge and other innovative technologies.

After many studies, repeated argumentation and verification, this ceramic electric melting furnace with compact structure, efficient and reasonable configuration of flow field, electric field and temperature field has been successfully trial-produced, with the highest melting rate of 121kg / d, and the simulated waste glass produced is uniform, compact, non-crystalline, bubble-free, safe and stable, and the oxide inclusion rate of medium and low level radioactive waste is as high as 26.0%. It can be used to meet the needs of glass solidification of low and medium radioactive waste in China's spent fuel post-treatment plants, and its processability and product performance are comparable to the most advanced low-active waste glass products in the world.

CTOnews.com Note: glass solidification is a process of mixing radioactive waste with vitreous body. Because of its high corrosion resistance and stability, it has long been regarded by international nuclear regulators as an ideal method for the treatment of radioactive waste. At a temperature of 1000 ℃ or higher, radioactive waste and glass materials are mixed and melted and cooled to form a vitreous body, thus achieving effective and safe fixation of radionuclides and harmful chemicals.

China Nuclear Power Engineering Co., Ltd. organized experts to check and accept the test technical results. The acceptance team said that the result broke through the technical problems of the laboratory electric furnace and glass curing formula, and the system was stable, safe and reliable, which effectively ensured the further engineering research of the glass curing research project of medium and low level radioactive waste. On September 27, the National Defense key disciplines Laboratory invited relevant experts in the nuclear industry to guide the electric furnace and glass curing formula of this low-and medium-level radioactive waste glass curing laboratory, so as to further promote the improvement, promotion, application and promotion of the project.

At present, the laboratory and project team have established docking intentions with relevant enterprises, and are expected to promote the pilot test in the near future, as well as further put into industrial application, and open a new door for the safe treatment and disposal of medium and low-level radioactive wastes in China.

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