Some rare earth enterprises will waste water discharged into the the Yellow River

The world of rare earth production 95% concentrated in China, production of rare earth products of high growth in bring economic benefits at the same time, also has brought serious environmental pollution. The reporter was informed that, as the emission standard of rare earth production enterprises, environmental protection department is currently preparing "rare earth smelting industry pollution prevention feasible technical guide" (hereinafter referred to as the guide), and solicit the public opinions.

In recent years, the industry of rare earth smelting in China entered a stage of rapid development, and become the world's biggest producer of rare earths. According to statistics, China's existing rare earth smelting enterprises up to 100, rare earth minerals output from 73000 tons in 2000, increased to 129400 tons in 2009, almost doubled, accounting for about 95% of the world.

However, the yield of rare earth products of high growth in bring economic benefits at the same time, also has brought serious environmental pollution. For example, there are ammonia nitrogen, fluoride wastewater discharge problems of rare earth production process. At the same time, also produce fluorine and oxygen and sulphur emissions. The guidelines for the preparation of said, "with all kinds of rare earth metals and their alloys with annual output of 30000 tons, annual emissions of 1200 tons of rare earth electrolysis flue gas fluoride, some enterprises also have direct emissions or simple processing can not meet the discharge standards issues." In addition, radioactive waste discharge and two pollution problems can not be ignored.
According to this explanation says, rare earth ore always associated radioactive thorium radioactive waste, which, Baotou rare earth ore processing is the most prominent. Baotou area annually produces 50000 tons of radioactive waste, Gansu rare earth company annual production of more than 1 tons of water leaching residue. "Some enterprises in Baotou City, the water leaching residue into permanent radioactive residue library storage, some enterprises will waste water directly discharged into the tailings dam of Baotou Steel, some enterprises take the water leaching slag water into the drainage ditch into the ground and came to the Yellow River. Gansu rare earth company into the water and wastewater discharged into self-contained with leaching residue of tailings dam, some enterprises have any stockpiling radioactive waste, without any protective measures, the surface water and the surrounding environment, resulting in different levels of radioactive contamination." Explanation of compiling wrote.

Environmental Protection Department of the relevant responsible person said, in recent years, China implemented more stringent protective mining policy and ecological and environmental protection standards for rare earth resources and environment, strict industry access. Including, accelerate the formulation and improvement of rare earth mining and production standards, the implementation of strict environmental access system, strictly enforce the "discharge standard of pollutants for" rare earth industry, the rare earth industry environmental risk assessment system.

"The guidelines are currently being developed to make full use of the successful experience of pollution prevention and control management system in developed countries, combined with the actual situation of Chinese rare earth industry, which has a guiding role for China's rare earth smelting industry pollution prevention and control. As long as the strict implementation of guidelines, will ensure that the rare earth production enterprises pollutant discharge standards and clean production standard." The responsible person said.


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