Abstract

Using heterogeneous Fenton system dynamic method, a decolorization test was operated for three kinds of simulated dye wastewater (Reactive Red KE-3B, Reactive Yellow KE-4R and Reactive Blue KN-R). Through the single factor experiments to examine the pH, H2O2 dosage, catalyst dosage, reaction temperature and residence time of simulated dye wastewater effected on the simulated dye wastewater decolorization rate. Determined the best decolorization reaction conditions as pH value of 4, the H2O2 concentration of 800 mg/L, catalyst dosage of 20 g, reaction temperature of 60 °C and reaction residence time of 9 minutes. Under this reaction conditions, in heterogeneous fenton system, degradation rate of the three kinds of simulated wastewater reached 95.01%, 93.86% and 97.74%, respectively.

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