title: Influence of persulfate ions on the removal of phenol in aqueous solution using electron beam irradiation.
abstract: The removal of phenol (Co = 100 μM) during electron beam irradiation was studied in pure water and in the presence of HCO(3)(-) and Br(-) ions. It was found that the introduction of S(2)O(8)(2-) ions (1mM), by generating SO(4)(-) radicals increases the radiation yield of phenol removal. 90% removal of phenol was obtained with radiation doses 600 and 1200 Gy with and without S(2)O(8)(2-) ions respectively. This system induced smaller oxygen consumption with smaller concentration of catechol and hydroquinone found in the solution. HCO(3)(-) and Br(-) have an inhibiting effect in the presence as in the absence of S(2)O(8)(2-). In most cases, the introduction of S(2)O(8)(2-) ions in water radiolysis system can advantageously increase the yield of organic compounds removal by oxidation.
authors.affiliation: Laboratoire de Chimie et Microbiologie de l'Eau, UMR CNRS 6008) Université de Poitiers, Ecole Nationale Supérieure d'Ingénieurs de Poitiers, 40 Avenue du Recteur Pineau, 86022 Poitiers Cedex, France.
authors.forename: Sahidou O B
authors.initials: SO
authors.lastname: Boukari
authors.forename: Fabien
authors.initials: F
authors.lastname: Pellizzari
authors.forename: Nathalie
authors.initials: N
authors.lastname: Karpel Vel Leitner
mesh_terms: D000838:Anions; D004583:Electrons; D010100:Oxygen / Q000737:chemistry; D019800:Phenol / Q000302:isolation & purification*; D012996:Solutions; D013431:Sulfates / Q000737:chemistry*; D014867:Water / Q000737:chemistry*
chemical_list: D000838:Anions; D012996:Solutions; D013431:Sulfates; D014867:Water; D019800:Phenol; D010100:Oxygen