Scrap metals are an important source of pollution, and there are many radioactive contaminated scrap metals among them. Dongguan should pay careful attention to the recycling and treatment of scrap iron.

The selection of decontamination technology is crucial when dealing with radioactive contaminated waste metal. Material recycling expert analysis: Factors that may affect the selection of radioactive waste metal decontamination technology include: contaminated nuclides and levels of pollution; The types and geometric shapes of radioactive contaminated waste metals; Current national standards (cleaning and control levels, classification of radioactive waste, personal dose limits, etc.); Waste management costs; The economic capacity of the country in the management of retired waste and the technical and economic comparison of different decontamination technologies.

After a brief technical and economic evaluation of existing decontamination technologies, based on the actual situation in China, a reasonable combination of decontamination technologies may lead to a reasonable route for decommissioning waste metal treatment technology.

dioactive waste metal treatment technology

At present, China has developed radioactive contaminated waste metal decontamination technologies, including preliminary and deep chemical decontamination technologies; Preliminary and deep decontamination technology using mechanical methods; Melting method deep decontamination technology, etc.

When evaluating the advantages and disadvantages of these decontamination technologies, Dongguan's waste iron recycling mainly focuses on the following aspects: the safety and environmental safety of existing decontamination technologies: decontamination efficiency; The maturity level of existing technology and related operating costs; The possibility of recyclable or restricted utilization of scrap metal resources; Full process waste management costs; The adaptability and effectiveness of existing technologies for various types of waste metals.