WASHINGTON mountains to keep mine, Wengfu phosphate mine drainage work outside the tailings management in order to reduce total phosphorus as a leader, increasing backwater utilization, reduce emissions, to achieve a drain outside the discharge standards achieved Significant environmental benefits.
It is understood that, due to the lower grades into the dressing stone, harmful impurities rise, last year outside the drainage of total phosphorus content Wengfu phosphate tailings exceeded mine production and environmental protection to bring great pressure. At the end of 2007, the Yanfu Phosphorus Mine formulated an environmental management plan, firmly grasping the three key factors of reducing total phosphorus, reducing emissions, and increasing water reuse, reducing source water supply, increasing tailings transport concentration, and extending tailings slurry clarification. The sedimentation time increases the water evaporation in the reservoir area and reduces the impurity content of the water body, so that the phosphorus and fluoride content of the external drainage water is significantly reduced.
A few days ago, the mine took the tailwater storage outside the reservoir as the source until the Qingshuijiang No. 0 pumping station took samples during the dry season. The sampling points included Baiyanxi, Yingpingxi, Gaopinghe, Arohe and Qingshuijiang pumping stations. According to sampling analysis, the total phosphorus content in the upstream and downstream of the inlet was 0.023ppm and 0.026ppm, respectively, and the fluoride content was 0.33ppm and 0.37ppm, respectively, which fully met the national emission standards. (He Quanji Yang Changzhi)
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