A mild photochemical approach to the degradation of phenols from olive oil mill wastewater.
Chemosphere
; 55(7): 1035-41, 2004 May.
Article
en En
| MEDLINE
| ID: mdl-15051372
ABSTRACT
Photooxidation of cathecol (1) is carried out in aqueous solution at lambda > 300 nm using different sensitizers rose bengal (RB), 9,10-dicyanoanthracene (DCA), 2,4,6-triphenylpyrylium tetrafluoroborate (Pyryl). The highest degradation is observed in the UV/RB-sensitized reaction (66% after 15 h of irradiation), mineralization and formation of dimers are the final events. This procedure has been extended to tyrosol (2), caffeic acid (3), vanillic acid (4), 4-hydroxycinnamic acid (5) and 4-hydroxybenzoic acid (6) as well as to a mixture of all phenols. A reduced toxicity of the UV/RB-irradiated solutions of cathecol and tyrosol towards alga Ankistrodesmus braunii is also verified.
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Colección:
01-internacional
Asunto principal:
Fenoles
/
Fotólisis
/
Contaminantes Químicos del Agua
/
Aceites de Plantas
/
Eliminación de Residuos Líquidos
/
Chlorophyta
Idioma:
En
Revista:
Chemosphere
Año:
2004
Tipo del documento:
Article
País de afiliación:
Italia