title: Degradation of chlorobenzene by Fenton-like processes using zero-valent iron in the presence of Fe3+ and Cu2+.
abstract: Batch and column tests were conducted to compare the efficiencies of three Fenton-like systems in the degradation of chlorobenzene. In the investigated systems, iron powder was the source of Fe2+ ions, and either Fe3+ or Cu2+ were added in order to enhance the degradation process. Optimum pH and concentrations of Fe3+, Cu2+ and hydrogen peroxide were assessed by treating synthetic chlorobenzene solutions both in batch and in column mode, thus achieving the minimum residual concentration of chlorobenzene. Optimum conditions assessed by means of column tests were then applied to column treatment of real chlorobenzene-contaminated groundwater. Results showed that, when the TOC content of water was above 12 mg L(-1), the performance of the Fe0/H2O2 system was enhanced by the addition of Fe3+, leading to 10-20 microg L(-1) of residual chlorobenzene.
authors.affiliation: Consiglio Nazionale delle Ricerche, Istituto di Ricerca Sulle Acque, Sezione di Bari, Via Francesco De Blasio 5, Bari 70123, Italy.
authors.forename: Michele
authors.initials: M
authors.lastname: Pagano
authors.forename: Angela
authors.initials: A
authors.lastname: Volpe
authors.forename: Antonio
authors.initials: A
authors.lastname: Lopez
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Mascolo
authors.forename: Ruggiero
authors.initials: R
authors.lastname: Ciannarella
mesh_terms: D002722:Chlorobenzenes / Q000032:analysis / Q000737:chemistry*; D002733:Chlorophenols / Q000032:analysis / Q000737:chemistry; D003300:Copper / Q000737:chemistry*; D006861:Hydrogen Peroxide / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D007501:Iron / Q000737:chemistry*; D010084:Oxidation-Reduction; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D018508:Water Purification / Q000379:methods*
chemical_list: D002722:Chlorobenzenes; D002733:Chlorophenols; D014874:Water Pollutants, Chemical; D003300:Copper; D006861:Hydrogen Peroxide; D007501:Iron; C031294:chlorobenzene