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dc.contributor.authorCriquet, Justine
dc.contributor.authorKarpel Vel Leitner, N.
dc.identifier.citationCriquet, Justine and Karpel Vel Leitner, Nathalie. 2011. Radiolysis of acetic acid aqueous solutions—Effect of pH and persulfate addition. Chemical Engineering Journal. 174 (2-3): pp. 504-509.

The degradation of acetic acid in aqueous solution by ionizing radiation was studied. The radiolysis of acetic acid solution induces the almost complete degradation and mineralization of this compound. The high yield of acetic acid mineralization is explained by the degradation of oxalic acid by solvated electron. The degradation of acetic acid depends on the pH of the solution. The best degradation is observed at pH 4.5 due to the higher rate constant of reaction of acetate with hydroxyl radicals and the competitive reactions of inorganic carbon which occur at higher pH. The influence of persulfate ion (S2O82−) addition that forms the sulfate radical (SO4 −) during irradiation in solution was examined. The persulfate addition induces an almost constant degradation of acetic acid whatever the initial pH of the solution. The decrease of pH during the persulfate radiolysis partly explains the high degradation observed. But the additional radicals formed by the persulfate introduction also improve the degradation.

dc.publisherElsevier BV
dc.subjectWater treatment
dc.subjectSulfate radical
dc.subjectCarboxylic acid
dc.titleRadiolysis of acetic acid aqueous solutions—Effect of pH and persulfate addition
dc.typeJournal Article
dcterms.source.titleChemical Engineering Journal
curtin.departmentCurtin Water Quality Research Centre (Industry Research Centre)
curtin.accessStatusFulltext not available

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