The application of special flotation

(A) the wastewater ion flotation of copper smelting
     For ion flotation with amyl xanthate, the xanthate dosage of Cu2 +, Pb2 + of other equivalent, Cd2 + equivalence ratio of 1.5 to 2.0. Availability of Cd2 + ≤ 0.05 mg l -1 of treated water.
     Ion flotation using xanthate worried about dealing with the water remaining xanthate is affected by high treated water quality. Using the above procedures dealing with water up to 20 mg l -1 COD, meet emissions requirements, but the treated water slightly yellow, when mixed with other drainage, the treatment by co-precipitation and the role of clear and transparent so that the final treated water.
    (B) IPU flotation
     IPU coal washing equipment is the so-called ion flotation flotation - sedimentation flotation - Flotation-fine short (Ton floration Precipitate floration-Uitra fine Particlotation).
     For example, lead and zinc processing plant in the zinc concentrate thickener overflow copper, zinc, cyanide, cadmium, xanthate and frother, available Figure 18 flow processing.
    (C) the adsorption of low concentrations of radioactive waste water flotation
     Nuclear fuel reprocessing process, the emitted low concentrations of radioactive waste, contain uranium fission products, which have a longer half-life of strontium, cesium, cerium, ruthenium, zirconium five.

     They can be with the selective adsorption of flotation separation. Adsorption flotation process shown in Figure 19.

     It can be seen from the figure, the first phase is Fe (OH) 3 for the adsorption carrier, sodium oleate as collector, pH 6.0 to 8.0 under the conditions of flotation. Surfaced 144Ce, 106Ru, y5Zr; second phase is for the adsorption of calcium phosphate carrier, sodium naphthenate collector at pH 10.5 to 11.0 under the conditions of floating 90Sr; third phase is cobalt iron cyanide adsorption carrier, octadecane amine acetate as collector, at pH 7.0 to 9.0 under the conditions of floating 37Cs.
     vibrating feeders Removal of radioactive substances have a high rate, and conventional coagulation and sedimentation method and compared residue is greatly reduced.