S
Sebastien Allard
Researcher at Curtin University
Publications - 49
Citations - 1534
Sebastien Allard is an academic researcher from Curtin University. The author has contributed to research in topics: Bromide & Bromine. The author has an hindex of 15, co-authored 38 publications receiving 1074 citations. Previous affiliations of Sebastien Allard include University of Poitiers & Swiss Federal Institute of Aquatic Science and Technology.
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Journal ArticleDOI
Reaction of bromine and chlorine with phenolic compounds and natural organic matter extracts – Electrophilic aromatic substitution and oxidation
Justine Criquet,Eva Rodríguez,Sebastien Allard,Sven Wellauer,Elisabeth Salhi,Cynthia Joll,Urs von Gunten,Urs von Gunten,Urs von Gunten +8 more
TL;DR: With the data set from this study, the ratio between the species-specific rate constants for the reactions of chlorine versus bromine with phenolic compounds was confirmed to be about 3000, showing that for natural organic matter samples, oxidation (ET) is far more important than bromines incorporation (EAS).
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Iodate and Iodo-Trihalomethane Formation during Chlorination of Iodide-Containing Waters: Role of Bromide
Justine Criquet,Justine Criquet,Sebastien Allard,Elisabeth Salhi,Cynthia Joll,Anna Heitz,Urs von Gunten,Urs von Gunten,Urs von Gunten +8 more
TL;DR: The process of free chlorine exposure followed by ammonia addition revealed that the formation of iodo-trihalomethanes (I-THMs), especially iodoform, was greatly reduced by an increase of free chlorine exposure and an increased of the Br(-)/I(-) ratio.
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Mechanistic Study on the Formation of Cl-/Br-/I-Trihalomethanes during Chlorination/Chloramination Combined with a Theoretical Cytotoxicity Evaluation
TL;DR: This study demonstrates that the presence of bromide not only enhances the yield and rate of iodate formation, it also increases the formation of b rominated I-THM precursors.
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Formation of iodinated organic compounds by oxidation of iodide-containing waters with Manganese Dioxide
TL;DR: The results suggest that birnessite acts as a catalyst through the oxidation of iodide to iodine and the polarization of the iodine molecule, which then reacts with NOM moieties to form iodinated organic compounds.
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Ozonation of iodide-containing waters: Selective oxidation of iodide to iodate with simultaneous minimization of bromate and I-THMs.
TL;DR: It is demonstrated that ozone pre-treatment selectively oxidizes iodide to iodate and avoids the formation of iodinated disinfection by-products in iodide-containing waters, in which I-DBPs can be produced upon chlorination or especially chloramination.