The treatment of remainder xanthate in flotation wastewater by Fenton reagent was investigated. The effect of reactive time,Fe~(2+) dosage_,H_(2)O_(2) dosage and initial pH value was studied. The optimum condition was verified in via orthogonal test.
The flotation wastewater of anglesite and laphalerite was treated by NaClO process. The effects of pH,NaClO dosage and reaction time on the removal rate of COD were studied.
Bench-scale experiment and production practice on cycling utilization of mineral processing wastewater was introduced in this paper. A scheme which includes wastewater closed circrit in main path and supplementing fresh water partially was proposed.
And the experiment results show that FeCl_3 is the best coagulant for treating mineral processing wastewater. When the addition of FeCl_3 in treatment reaches 16 mg/L, the discharging water can meet the national standard.
In order to exploring degradation law of remaining xanthate in mineral processing waste water, natural solarization tests of xanthate solution with different pH value and different initiation density were carried out.
Bench-scale experiment and production practice on cycling utilization of mineral processing wastewater was introduced in this paper. A scheme which includes wastewater closed circrit in main path and supplementing fresh water partially was proposed.
And the experiment results show that FeCl_3 is the best coagulant for treating mineral processing wastewater. When the addition of FeCl_3 in treatment reaches 16 mg/L, the discharging water can meet the national standard.
In order to exploring degradation law of remaining xanthate in mineral processing waste water, natural solarization tests of xanthate solution with different pH value and different initiation density were carried out.
To provide the basis for the removal of the residual xanthate in the flotation effluent,xanthate degradation tests were made on the prepared xanthate solution using methods of natural exposure,oxidation by bleaching powder,acidification, settlement by ferrous sulfate and adsorption by active carbon. The results show that all the above methods can thoroughly remove the xanthate in the solution and make the concentration of xanthate in the effluent reach the state discharge standards.
Of these methods,settlement by ferrous sulfate and oxidation by bleaching powder are more suitable for treating the xanthate-containing flotation effluent due to their easy-to-find agent sources,cheap price,simple technology and good effect.