Abstract
In this paper, the optimum process parameters were obtained through treating phenol of simulated semi-coking wastewater using heat, Fe2+, Fe0 and semi-coke to catalyze persulfate. The results of phenol decomposition using PS catalyzed by heating, Fe2+, Fe0 and semi-coke were compared for selecting a better activating way. The article investigated the effects of temperature, catalyzer dosage, pH value and reaction time. The experiment showed the four methods can all catalyzed the process. Under the experimental conditions of heating, Fe2+, Fe0 and semi-coke degradation rate could reach to 20.7%, 75.1%, 94.5% and 40.0%, respectively. On this basis, this study established an L16(45) table to analyze the main influencing factors in semi-coke/Fe0 catalyzing system. Under the optimum conditions, the degradation rate of Phenol reached to 93.6%. However, the PS dosage was reduced by 14.4%.
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Liu, ZN., Zhang, KK. & Liu, YM. Experimental research on oxidation of phenol by activated persulfate. J Coal Sci Eng China 19, 560–565 (2013). https://doi.org/10.1007/s12404-013-0419-6
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DOI: https://doi.org/10.1007/s12404-013-0419-6