title: Degradation of formaldehyde by advanced oxidation processes.
abstract: The degradation of formaldehyde in an aqueous solution (400 mg L(-1)) was studied using photolysis, peroxidation and advanced oxidation processes (UV/H(2)O(2), Fenton and photo-Fenton). Photolysis was the only process tested that did not reduce formaldehyde concentration; however, only advanced oxidation processes (AOPs) significantly decreased dissolved organic carbon (DOC). UV/H(2)O(2) and photo-Fenton AOPs were used to degrade formaldehyde at the highest concentrations (1200-12,000 mg L(-1)); the processes were able to reduce CH(2)O by 98% and DOC by 65%. Peroxidation with ultraviolet light (UV/H(2)O(2)) improved the efficiency of treatment of effluent from an anatomy laboratory. The effluent's CH(2)O content was reduced by 91%, DOC by 48%, COD by 46% and BOD by 53% in 420 min of testing.
authors.affiliation: School of Civil Engineering, Architecture and Urbanism, University of Campinas, Av. Albert Einstein, 951, PO Box 6021, 13083-852 Campinas, SP, Brazil. jorober@fec.unicamp.br
authors.forename: José Roberto
authors.initials: JR
authors.lastname: Guimarães
authors.forename: Carolina Rittes Turato
authors.initials: CR
authors.lastname: Farah
authors.forename: Milena Guedes
authors.initials: MG
authors.lastname: Maniero
authors.forename: Pedro Sérgio
authors.initials: PS
authors.lastname: Fadini
mesh_terms: D002244:Carbon / Q000737:chemistry*; D005557:Formaldehyde / Q000737:chemistry*; D010084:Oxidation-Reduction; D010782:Photolysis
chemical_list: D005557:Formaldehyde; D002244:Carbon