The Ministry of Environmental Protection has recently released the "Emission Standards of Rare Earth Industrial Pollutants", which will be implemented from October 1, 2011. The relevant person in charge of the Ministry of Environmental Protection said that this was the first national pollutant discharge standard issued by the Ministry of Environmental Protection during the "Twelfth Five-Year Plan" period. The formulation and implementation of the standard will help raise the entry barrier for the rare earth industry and accelerate the development of the transformation Ways to promote structural adjustment of the rare earth industry and promote the sustained and healthy development of the rare earth industry.
The person in charge said that rare earths are important non-renewable strategic resources and are increasingly used in various sectors of the national economy. After years of development, the scale of China's rare earth industry continues to expand, but there are still problems in the development of the rare earth industry, such as illegal mining, overcapacity, destruction of the ecological environment and waste of resources, which has seriously affected the healthy development of the industry. Statistics show that at present, China's rare earth reserves account for 36% of the world's total, and output accounts for 97% of the world. Due to over-exploitation, the reserves of rare earth resources in our country have declined rapidly, and environmental pollution in the production process of rare earth has become increasingly prominent. Taking ammonia nitrogen as an example, the amount of wastewater generated by the rare earth industry reaches more than 20 million tons per year, and the ammonia nitrogen content is 300-5000 mg / L, which exceeds the national discharge standard by more than ten times to hundreds of times. Since there are no pollutant emission standards for the characteristics of the rare earth industry, for a long time, the environmental impact assessment, design and completion acceptance of pollutant emission management and construction projects of rare earth industry enterprises can only implement comprehensive pollutant emission standards, rare earth industry production process The characteristic pollutants discharged in China have not been effectively controlled.
In order to solve the problems in the rare earth industry, improve the technical level of mining, smelting and application, and protect the country's precious rare earth strategic resources, the Ministry of Environmental Protection has launched the formulation of emission standards for the rare earth industry. "Emission Standards of Rare Earth Industrial Pollutants" is based on the characteristics of rare earth industrial enterprises' production processes, production equipment and the composition of raw and auxiliary materials. The main pollutants emitted in the production of rare earth industrial enterprises are used as control items. The emission control and other aspects are clearly defined. In order to prevent companies from diluting emissions, the standard also stipulates the standard drainage volume per unit product and the standard exhaust volume per unit product. The standard is applicable to the management of water and waste gas pollutant emissions from various scale production processes and devices engaged in rare earth mining to rare earth metal and alloy production in China, as well as environmental impact assessment, design and completion acceptance of rare earth industrial construction projects.
The person in charge said that after the implementation of the "Rare Earth Industry Pollutant Emission Standards", new enterprises must strictly implement the standards. Taking into account the actual situation of the existing rare earth industry enterprises in China, the standards set a two-year emission transition for the existing enterprises. After the transition period, existing enterprises must also implement emission limits for new enterprises.
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