title: Sono-oxidation treatment of humic substances in drinking water.
abstract: Currently humic substances are removed from the raw water prior to chlorination by the conventional coagulation and filtration method using aluminium sulphate. Application of high-intensity (> 10 W/cm2) ultrasonic irradiation in conjunction with oxidative process using commercial oxidants H2O2 was investigated as an alternative. Sono-oxidation and sonodegradation of natural and synthetic humic substances have been followed over time by measuring total organic carbon (TOC) and absorbance by ultraviolet spectrometer (UV-VIS). It took approximately 60 min to reduce TOC by half and to have a complete degradation of humic acid.
authors.affiliation: Laboratoire de Chimie des Substances Naturelles et des Sciences des Aliments, Faculté des Sciences et Technologies, Université de la Réunion, 15 Avenue René Cassin, B.P. 7151, F-97715 Saint Denis messag, La Réunion, France D.O.M. chemat@univ-reunion.fr
authors.forename: F
authors.initials: F
authors.lastname: Chemat
authors.forename: P G
authors.initials: PG
authors.lastname: Teunissen
authors.forename: S
authors.initials: S
authors.lastname: Chemat
authors.forename: P V
authors.initials: PV
authors.lastname: Bartels
mesh_terms: D002244:Carbon / Q000032:analysis; D006812:Humic Substances / Q000737:chemistry*; D006861:Hydrogen Peroxide; D010084:Oxidation-Reduction; D013056:Spectrophotometry, Ultraviolet; D014465:Ultrasonics; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014881:Water Supply / Q000032:analysis*
chemical_list: D006812:Humic Substances; D014874:Water Pollutants, Chemical; D002244:Carbon; D006861:Hydrogen Peroxide