A Comparison Experiment Of Different Electrochemical Processes For Phenol-containing Wastewater Treatment

The research processing organic wastewater with Electrochemical measurementsis a recently developed green environmental protection technology,with greatpotential for growth.This paper uses electric catalytic oxidation,electricity - Fentonmethod,the three-dimensional electrode,three-dimensional electrode andelectricity - Fenton decoupling legitimate phenol simulation wastewater throughdegradation.Through orthogonal test,draw the optimal conditions of variousmethods.And contrast four methods for key disadvantages.Meanwhile to the bestpossible conditions on the process of least squares fitting for degradation process.Thispaper also to electric catalytic oxidation and electricity - Fenton,degradation processmethod for determination of the track·OH the degradation mechanism reThe contentof phenol in solution,with 4-amino antibilin for determination of. Through thechanges of phenol concentration before and after processing method is useful qualitycomparison. The·OH density is solution to salicylic acid as probes of the colorimetricdetermination. Through measuring solution generation 3-2 hydroxy benzoic acid red,that the amount of the content of indirect,·OHsearch provides certain basis.Through this test can be drawn: electric catalytic oxidation optimal conditions ofphenol wastewater treatment 120min degradation rate reached 88.7%; Electricity -Fenton method optimal conditions of phenol wastewater treatment 120mindegradation rate reaches 99.4%; The optimal conditions three-dimensional electrode80min degradation rate of phenol wastewater treatment nearly 100%;Three-dimensional electrode and electricity - Fenton coupling method optimalconditions of phenol wastewater treatment 60min degradation rate close to 100%.Under certain conditions,four kinds of electrochemical measurements.the researchon phenol wastewater quality sequence for: three-dimensional electrode andelectricity> three-dimensional electrode>electrode-Fenton coupling method>electrocatalytic oxidization method.For the best condition,four methods of phenol respectively degradation processof fitting the least-square method,the results showed that the four methods aresuitable for first-degree kinetics reaction rule. Based on the reaction process tracking·OH,·OH,it is concluded that determination to catch the cargoes betweenorganic matter degradation rate with a good correlation,and positively related.The research in this paper,it can be argued that the three-dimensional electrodeFenton reaction system introduced electricity - by two or more treatment methods canimprove the efficiency immunoanalysis,reduce the energy consumption purposes.Meanwhile,electrocatalytic oxidization system respectively Fenton system andelectric - the·OH concentrations for electricity,tracking determination catalyticoxidation and electricity - Fenton method discussed the mechanism of organic matterdegradation perform certain matting and reference.