Mercury-containing industrial waste water can be filtered and combined an aluminum powder is added in substitution for the alkaline solution purification cloth. A gold mining ore flotation of copper after the amalgamation of mercury in water clarification copper concentrate output 7.28mg / L. First, filter with a filter cloth to remove 81.51% mercury; then add aluminum powder to replace the solution under alkaline conditions. The total removal rate of mercury was 97.64%.
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