title: Combination of ozonation and photocatalysis for purification of aqueous effluents containing formic acid as probe pollutant and bromide ion.
abstract: The treatment by advanced oxidation processes (AOPs) of waters contaminated by organic pollutants and containing also innocuous bromide ions may generate bromate ions as a co-product. In the present work heterogeneous photocatalysis and ozonation have individually been applied and in combination (integrated process) to degrade the organic compounds in water containing also bromide anions. The results show that: i) the sole photocatalysis does not produce bromate ions and in the case of its presence, it is able to reduce bromate to innocuous bromide ions; ii) the integration of photocatalysis and ozonation synergistically enhances the oxidation capabilities; and iii) in the integrated process bromate ions are not produced as long as some oxidizable organics are present.
authors.affiliation: Dipartimento di Energia, Ingegneria dell'Informazione e Modelli Matematici (DEIM), University of Palermo, Viale delle Scienze Ed. 6, Palermo 90128, Italy. Electronic address: francesco.parrino@unipa.it.
authors.forename: F
authors.initials: F
authors.lastname: Parrino
authors.affiliation: Department of Civil, Chemical, Environmental, and Materials Engineering, University of Bologna, via Terracini 28, Bologna 40131, Italy. Electronic address: giovanni.cameraroda@unibo.it.
authors.forename: G
authors.initials: G
authors.lastname: Camera-Roda
authors.affiliation: Dipartimento di Energia, Ingegneria dell'Informazione e Modelli Matematici (DEIM), University of Palermo, Viale delle Scienze Ed. 6, Palermo 90128, Italy. Electronic address: vittorio.loddo@unipa.it.
authors.forename: V
authors.initials: V
authors.lastname: Loddo
authors.affiliation: Dipartimento di Energia, Ingegneria dell'Informazione e Modelli Matematici (DEIM), University of Palermo, Viale delle Scienze Ed. 6, Palermo 90128, Italy. Electronic address: giovanni.palmisano@unipa.it.
authors.forename: G
authors.initials: G
authors.lastname: Palmisano
authors.affiliation: Dipartimento di Energia, Ingegneria dell'Informazione e Modelli Matematici (DEIM), University of Palermo, Viale delle Scienze Ed. 6, Palermo 90128, Italy. Electronic address: vincenzo.augugliaro@unipa.it.
authors.forename: V
authors.initials: V
authors.lastname: Augugliaro
mesh_terms: D001959:Bromates / Q000032:analysis; D001965:Bromides / Q000032:analysis*; D002384:Catalysis / Q000528:radiation effects; D005561:Formates / Q000032:analysis*; D007477:Ions; D007700:Kinetics; D010084:Oxidation-Reduction; D010126:Ozone / Q000737:chemistry*; D013997:Time Factors; D014466:Ultraviolet Rays; D014865:Waste Disposal, Fluid; D014874:Water Pollutants, Chemical / Q000302:isolation & purification*; D018508:Water Purification
chemical_list: D001959:Bromates; D001965:Bromides; D005561:Formates; D007477:Ions; D014874:Water Pollutants, Chemical; C030544:formic acid; D010126:Ozone
keywords: Advanced oxidation processes; Bromate; Ozonation; Photocatalysis; Photocatalytic ozonation; Water purification