Degradation of formaldehyde by advanced oxidation processes

Autor(es)

Guimaraes, Jose Roberto ^[1] ; Turato Farah, Carolina Rittes ^[1] ; Maniero, Milena Guedes ^[1] ; Fadini, Pedro Sergio ^[2]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Sch Civil Engn Architecture & Urbanism, BR-13083852 Campinas, SP - Brazil

^[2] Univ Fed Sao Carlos, Dept Chem, BR-13565905 Sao Carlos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Journal of Environmental Management; v. 107, p. 96-101, SEP 30 2012.
• Citações Web of Science: 37

Resumo

The degradation of formaldehyde in an aqueous solution (400 mg L-1) was studied using photolysis, peroxidation and advanced oxidation processes (UV/H2O2, 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/H2O2 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 CH2O by 98% and DOC by 65%. Peroxidation with ultraviolet light (UV/H2O2) improved the efficiency of treatment of effluent from an anatomy laboratory. The effluent's CH2O content was reduced by 91%, DOC by 48%, COD by 46% and BOD by 53% in 420 min of testing. (C) 2012 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 02/12017-0 - Tratamento de águas residuárias contendo formol usando UV, H2O2; UV/H2O2; reagente de Fenton, foto-Fenton e fotocatálise assistida por eletrólise
• Beneficiário: José Roberto Guimarães
• Modalidade de apoio: Auxílio à Pesquisa - Regular