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Oxidative degradation of dyes and surfactant in the Fenton and photo‐Fenton treatment of dyehouse effluents
Author(s) -
Ferrero F
Publication year - 2000
Publication title -
coloration technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 49
eISSN - 1478-4408
pISSN - 1472-3581
DOI - 10.1111/j.1478-4408.2000.tb00032.x
Subject(s) - effluent , chemistry , hydrogen peroxide , degradation (telecommunications) , reagent , pulmonary surfactant , kinetics , oxidative phosphorylation , residual , total organic carbon , environmental chemistry , nuclear chemistry , organic chemistry , environmental science , environmental engineering , telecommunications , biochemistry , physics , algorithm , quantum mechanics , computer science
The oxidative degradation of two dyes and a nonionic surfactant by iron(II) sulphate and hydrogen peroxide (Fenton's reagent) was studied, in the presence of UV irradiation (photo‐Fenton process). The degradation kinetics were followed by measuring the residual total organic carbon (TOC) value as a function of time at different initial TOC concentrations and temperatures. The curves interpolating the kinetic data show that the residual TOC values attained a stable level after a given treatment time; a similar trend was observed in the treatment of some dyehouse effluent samples. Moreover, by fitting experimental data, a first‐order equation was obtained that can explain the kinetic model proposed.