Abstract
The kinetics of aniline degradation by persulfate processes with iron(II) activation at ambient temperature was investigated in this study. With iron(II) as initiator, the oxidation reactions were found to follow a biphasic rate phenomenon: a rapid transformation followed by a slow but sustained oxidation process. In the first 30 s, the reaction mainly relies on the persulfate-Fe 2+ reaction in which aniline is oxidized rapidly. After 30 s, the aniline was still oxidized but the rate of reaction tended to be slower and the rates were clearly linear-proportional. After the initial fast oxidation, the reactions appeared to follow a pseudo-first-order model.
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