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论文类型：期刊论文

发表时间：2009-07-01

发表刊物：WATER SCIENCE AND TECHNOLOGY

收录刊物：SCIE、EI、PubMed、Scopus

卷号：60

期号：11

页面范围：2803-2807

ISSN号：0273-1223

关键字：degradation; Fenton; hydrogen peroxide; methyl orange; SDS; surfactants

摘要：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 (center dot 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.