Lumped kinetics and acute toxicity of intermediates in the ozonation of phenol in saline media.
This work investigates the feasibility of ozonation for destroying phenol and removing organic matter in saline media. The reaction lumped kinetics was followed using the GLKM (General Lumped Kinetic Model). The main intermediate compounds were: catechol, hydroquinone, 4,4'-dihydroxybiphenyl, and 4-bromophenol. It could be noted no significant differences in phenol degradation, mineralization rates, and toxicity removal up to 2 g L(-1) of salt. So, ozonation appears to be a technology that can be used in low salinity media, which is characteristic of waters destined to reuse and recycling programs inside industries.
Azevedo
Eduardo Bessa
EB
Chemistry and Environment Department, Faculdade de Tecnologia, Universidade do Estado do Rio de Janeiro (UERJ), Estrada Resende-Riachuelo, s/n, Morada da Colina, Resende/RJ, CEP 27523-000, Brazil. bessa@fat.uerj.br
Neto
Francisco Radler de Aquino
FR
Dezotti
Márcia
M
D000042:Absorption; D007700:Kinetics; D009930:Organic Chemicals / Q000302:isolation & purification; D010126:Ozone / Q000737:chemistry*; D019800:Phenol / Q000737:chemistry*; D012965:Sodium Chloride / Q000737:chemistry*; D018675:Toxicity Tests; D014874:Water Pollutants, Chemical; D014877:Water Pollution, Chemical / Q000517:prevention & control*
D009930:Organic Chemicals; D014874:Water Pollutants, Chemical; D019800:Phenol; D012965:Sodium Chloride; D010126:Ozone