Baotou "rare earth hanging lake" of the storm is expected to eliminate

Reporter on June 26 from Baotou municipal government has learned that a total investment of about 60 billion Baotou Rare Earth Tailings comprehensive management of six major projects already implemented in full swing, and has made significant progress. The project is expected to fundamentally eliminate the "rare earth hanging lake" of the storm.

Baotou City "rare earth hanging lake" known. Former State Planning Commission from rare earth panelists MA Peng description: Rare hanging dam lake is actually Baotou Rare Earth, because there is a huge safety and environmental hazards have been local people played a special title.

The dam body weeks up to 13.6 km, oval-shaped, covering 11 square kilometers. Baotou Bayan Obo rare earth ore average 0.04% thorium associated radioactive material, is typical of the natural radioactive thorium associated minerals. The Bayan Obo iron ore is mined as a truly utilize only 10% of the rare earths, thorium utilization is zero. After the Bayan Obo rare earth ore mining production, rich in radioactive elements thorium tailings are discharged in the tailings dam.

Inner Mongolia Autonomous Region Environmental Protection Bureau an insider in an interview with reporters, said tailings dam top and sea surface elevation is higher than the sea level elevation of the ground surrounding villages, is a veritable "hanging lake." Currently dam reservoir has more than 17.5 million cubic meters of water, the amount of 160 million tons of tailings dumps, tailings tailings stockpile accumulated more than 270 million tons. Even so, the number of one hundred million tons of tailings dam contains at least 9.3 million tons and 70,000 tons of rare earth radioactive thorium.

'RE Hanging Lake' governance to accelerate progress, otherwise very serious consequences. Nanjing Research Association, vice chairman of application of rare earth on the matter SCUENCE full of anxiety. He said the dam in the city, on the one hand, mine tailings on the surrounding environment pollution is very serious, in addition to long-standing accumulation of groundwater contamination from the Yellow River dam straight line from the nearest is only 8.38 km, Less than 20 meters west of the Yellow River is tributary; hand, Baotou in earthquake zones, in case of an earthquake or heavy rainfall, it may lead tailings dam burst.

It seems that the "rare earth hanging lake" like mother and placed in Baotou City residents around a "bomb", could be detonated at any time, but fortunately risks are gradually eliminated.

This reporter has learned that the current "six rare earth project" significantly accelerate progress in the implementation, including tailings surrounding ecological environment system restoration projects and 600 tons of oxide ore beneficiation production line and rare earth mineral processing production line relocation project, tailings and the surrounding areas protection engineering, tailings seepage, ash dam comprehensive treatment project and surrounding herdsmen relocation project.

Up to now, tailings seepage control project has been basically completed, the Baotou Steel Group oxide ore beneficiation relocation and Bayan Obo ore resource utilization project is stepping up construction, will be put into operation this year. Tailings and the surrounding areas green environment and water quality improvement projects have been implemented at present 170,000 square meters, hardened area of ​​about 84,000 square meters, this year will continue to organize the 100,000 to 150,000 square meters of the dam green. Baotou Steel Rare Earth separation process for industrial wastewater generated will be in accordance concentrate roasting, centralized separation principle of centralized governance, implementation of the project after the basic realization of rare earth smelting salinity wastewater zero emissions. Clad tailings and the surrounding area protection projects started construction in 2010, including video surveillance project has been completed. Comprehensive treatment of fly ash dam project includes a new system using the ash filled clad land remaining ash dam and its corresponding overburden green watering facilities and other content, project implementation, it can revitalize 500,000 square meters of land for afforestation . Tailings dams have been around more than 300 farmers in five villages relocation new homes.

On "rare earth hanging lake" governance experts also proposed another way. Inner Mongolia University of Technology Resources and Safety Engineering Dean Professor Li Jilin, told reporters: "'Rare hanging lake' treatment can not cure a headache head hurts foot rule, the need to eliminate hidden dangers from the production source of our country should be developed as soon as possible similar Environmental deposit system as soon as possible piloted. should seriously deal with the Bayan Obo mine development, utilization and protection of the three relationships in strict accordance with the state of the Bayan Obo mine utilization demonstration bases and green mining bases required to do the work at the same time , but also to increase the pace of resource utilization, as soon as possible tailless dressing, reducing industrial production on the environment and a safe pressure. Specifically, it is necessary to strengthen the comprehensive utilization of industry, academia, research integration platform, a substantial increase in clouds Ebo level of development and utilization of mineral resources; two is to transform mining development, accelerate the development of green mining industry; three comprehensive utilization of mineral resources is to establish long-term mechanism to give full play to the guiding role of demonstration projects to further enhance the development and utilization of mineral resources Baiyunebo overall levels and utilization efficiency. "

It is reported that Baotou Bayan Obo rare earth mineral resources comprehensive utilization demonstration bases have been selected for construction of the first batch of 40 mineral resources comprehensive utilization demonstration base, which is the only selected the first batch of Inner Mongolia demonstration bases. Next Baotou City will use national preferential policies to further improve the development of rare earth tailings comprehensive utilization of resources, to ensure environmental security risks of rare earth tailings been completely eradicated, "rare earth hanging lake" of the storm is expected to be completely eliminated.


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