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%.
Optical Brightener agent, commonly known as white dye, is a fluorescent dye and a complex organic compound that enhances the whiteness and luster of a substance. Whitening agents are mainly used in textiles, paper, plastics, paints, detergents, printing inks, waxes, packaging materials, etc. Whitening agent is only an optical brightening and complementary color, and can not replace chemical bleaching. Therefore, the coloring matter without bleaching, directly treated with whitening agent, can not fundamentally obtain the effect of clean white, should be noted when using.
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