Effect of anionic surfactants on the process of Fenton degradation of methyl orange.
Fenton process has been shown to be very successful to remove dyes from water. However, the influence of other constituents in dyeing industry wastewater, such as Sodium Dodecyl Sulphate (SDS) surfactants, has not been investigated. In this study, the effect of SDS surfactant on the kinetics of Methyl Orange degradation undergoing Fenton process was investigated. Results show that Methyl Orange degradation rate decreased as SDS concentration increased, which was attributed to the consumption of hydroxyl radicals (OH) by surfactants and the formation of Methyl Orange-SDS complex. No evidence was found that the Methyl Orange degradation pathway was affected by the presence of SDS. The kinetics modelling indicates the reaction was the first-order reaction to Methyl Orange.
Yang
C W
CW
School of Environmental and Biological Science and Technology, Dalian University of Technology, Dalian 116024, China. Chunwei_yang@jlnu.edu.cn
Wang
D
D
D001391:Azo Compounds / Q000737:chemistry*; D006861:Hydrogen Peroxide / Q000737:chemistry*; D007501:Iron / Q000737:chemistry*; D007700:Kinetics; D013053:Spectrophotometry; D013056:Spectrophotometry, Ultraviolet; D013501:Surface-Active Agents / Q000494:pharmacology*
D001391:Azo Compounds; C045076:Fenton's reagent; D013501:Surface-Active Agents; C100258:methyl orange; D006861:Hydrogen Peroxide; D007501:Iron