Treatability of textile dye-bath effluents by advanced oxidation : Preparation for reuse

• Published in: Water Science & Technology Vol. 40; no. 1; pp. 183 - 190
• Main Authors: INCE, N. H, TEZCANLI, G
• Format: Conference Proceeding Journal Article
• Language: English
• Published: Oxford Pergamon Press 1999; IWA Publishing
• Subjects: Applied sciences; Azo dyes; Color removal; Colour; Dissolved solids; Dyes; Effluents; Exact sciences and technology; Hydrogen peroxide; Industrial wastewaters; Iron; Irradiation; Organic carbon; Oxidation; Pollution; Procion; Reagents; Removal; Total organic carbon; Ultraviolet radiation; Wastewaters; Water treatment and pollution; Turkey; Iron II Ions; Ultraviolet radiation; Organic dye; Industrial waste water; Iron III Ions; Fenton reaction; Physicochemical purification; Oxidation; Photochemical reaction; Hydrogen Peroxides; Textile industry
• ISBN: 9780080434117; 0080434118
• ISSN: 0273-1223; 1996-9732
• DOI: 10.1016/s0273-1223(99)00379-0

Treatability of textile dye-bath effluents by advanced oxidation with Fenton and Fenton-like reagents (FeIII/H sub(2)O sub(2) and FeII/H sub(2)O sub(2)), in the presence and absence of UV light was investigated, using a reactive azodye (Procion Red HE7B), and typical dye bath constituents. Under the experimental conditions employed, it was found that with 20 min UV irradiation, complete color removal and 79% total organic carbon degradation is possible, when the system is operated at pH=3, and with a H sub(2)O sub(2)/Fe(II) molar ratio of 20:1. The increased dissolved solids content of the treated solution implies the necessity of an appropriate membrane system to make the effluent reusable in the dye/wash processes.