Effect of anionic surfactants on the process of Fenton degradation of methyl orange

摘要

Fenton process has been shown to be very successful to remove dyes from water. However,nthe influence of other constituents in dyeing industry wastewater, such as Sodium DodecylnSulphate (SDS) surfactants, has not been investigated. In this study, the effect of SDS surfactantnon the kinetics of Methyl Orange degradation undergoing Fenton process was investigated.nResults show that Methyl Orange degradation rate decreased as SDS concentration increased,nwhich was attributed to the consumption of hydroxyl radicals (zOH) by surfactants and thenformation of Methyl Orange-SDS complex. No evidence was found that the Methyl Orangendegradation pathway was affected by the presence of SDS. The kinetics modelling indicates thenreaction was the first-order reaction to Methyl Orange.