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丰羽矿位于日本北海道,该矿设有西部及东部两处矿坑水处理厂。其中,西部矿坑水处理厂位于距选厂500米的两部矿坑水排水巷道口附近,主要处理坑内废水,水量为5米~3/分,经处理的水将部分返回选厂作生产用水,其处理系统是:西部矿坑水→熟石灰中和澄清池(固液分离除去重金属)→沉淀池溢流经硫酸中和。多余的水则排到自井
Feng Yu Mine is located in Hokkaido, Japan, which has two mine water treatment plants in the west and east. Among them, the western mine pit water treatment plant is located 500 meters away from the election plant near the mouth of two pit drainage tunnel, the main treatment of pit wastewater, the water volume of 5 m ~ 3 / min, the treated water will be returned to the selected plant for production of water, The processing system is: western pit water → hydrated lime and clarification pond (solid-liquid separation to remove heavy metals) → settling tank overflow and sulfuric acid. Excess water is drained from the well