Experimental Study on Oxidative Degradation of Mineral Processing Wastewater Containing Salicylhydroxamic Acid
Salicylhydroxamic acid is one of the collectors that can chelate oxidized ore and has certain biological toxicity because it contains benzene ring structure.If the surface water body is discharged directly without effective treatment,it will cause serious pollution to the water environment.At present,there are many treatment methods at home and abroad,among which oxidative degradation method has been widely concerned by environmental workers.In this paper,the wastewater containing salicylhydroxamic acid was selected as the research object to explore the degradation of simulated wastewater containing salicylhydroxamic acid by persulfate oxidation.The degradation rate of simulated wastewater containing salicylhydroxamic acid under natural light,the effect of persulfate on the oxidative degradation of simulated wastewater containing salicylhydroxamic acid,the effect of microwave radiation on the oxidative degradation of simulated wastewater containing salicylhydroxamic acid,the effect of microwave radiation on the oxidative degradation of simulated wastewater containing salicylhydroxamic acid,and the effect of initial concentration of simulated wastewater containing salicylhydroxamic acid on microwave enhancement of persulfuric acid were investigated Effect of salt oxidative degradation.The results showed that the degradation rate of simulated wastewater containing salicylhydroxamic acid by natural light was very low.The degradation rate of salicylhydroxamic acid by persulfate and microwave radiation is not much higher than that under natural light,but the enhancement of persulfate by microwave radiation can effectively improve the oxidative degradation effect of salicylhydroxamic acid,which is mainly because microwave radiation makes persulfate obtain more energy.Therefore,the O-O bond in persulfate is more likely to be broken and sulfate free radicals with higher REDOX potential are generated.
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