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Electrochemical oxidation of reactive dyes: method validation and application
Author(s) -
Gutiérrez M.C.,
Pepió M.,
Crespi M.
Publication year - 2002
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.1478-4408.2002.tb00129.x
Subject(s) - dyeing , wastewater , reactive dye , electrochemistry , textile industry , textile , pulp and paper industry , chemistry , process engineering , computer science , environmental science , materials science , electrode , environmental engineering , organic chemistry , composite material , archaeology , engineering , history
Electrochemical oxidation is a very effective technique for wastewater processing and, in the textile industry, it can be employed to remove colour from residual dyeing and washing liquors. In previous studies, the main factors were established for the control of the electrochemical removal of reactive dyes from textile wastewater. Mathematical models were proposed for the decolorisation of these dyes and for the electrical consumption. In the present work, these models are analysed and a three‐step methodology is established in order to determine whether a dye can be removed from wastewater by electrochemical treatment. This methodology is applied and verified on a further four reactive dyes. The mathematical models are also employed to evaluate the colour removal from textile wastewater samples containing reactive dyes.