Degradation of Phenol by Micro-electrolysis Activated Persulfate Based on Response Surface Method
The process parameters and the removal efficiency of micro-electrolysis activated persulfate in phenol wastewater treatment system were studied and optimized,so as to efficiently degrade phenol wastewater.The micro-electrolysis activated persulfate system was constructed.The effect of the persulfate concentration,initial pH value and reaction temperature on phenol degradation rate was analyzed by the response surface method(RSM).The parameters of micro-electrolysis activated persulfate process for phenol degradation were optimized by the fitted model of RSM.The results showed that all the dependent variables had significant effects on the response value,and the order of dominance from high to low was reaction temperature,persulfate concentration,and initial pH value.The optimal process conditions were as follows:persulfate concentration was 15.98 mmol/L,initial pH value was 2.78,and reaction temperature was 74.73 ℃.The experimental results were consistent with the predicted values.Persulfate concentration and reaction temperature have obvious effects on phenol degradation rate,and this fitted model of RSM can accurately predict the optimal reaction conditions and degradation rate of phenol wastewater by micro-electrolysis activated persulfate.
NETL
NSTL
万方数据
