Degradation of a persistent organic dye from colored textile wastewater by ozonation

被引：267

作者：

Tehrani-Bagha, A. R. ^{[1
]}

Mahmoodi, N. M. ^{[1
]}

Menger, F. M. ^{[2
]}

机构：

[1] Inst Color Sci & Technol, Dept Environm Res, Tehran, Iran

[2] Emory Univ, Dept Chem, Atlanta, GA 30322 USA

来源：

DESALINATION | 2010年 / 260卷 / 1-3期

关键词：

Wastewater; Reactive dye; Ozonation; Decolorization; Degradation; ADVANCED OXIDATION PROCESSES; AQUEOUS-SOLUTION; AZO-DYE; MOLASSES FERMENTATION; CI REACTIVE-BLUE-19; ACTIVATED CARBON; DECOLORIZATION; OZONE; MINERALIZATION; ACID;

D O I：

10.1016/j.desal.2010.05.004

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The effect of ozonation on the decolorization and degradation of an anthraquinone dye (C.I. Reactive Blue 19), performed in a laboratory scale cylindrical batch reactor, was studied. UV-Vis, ion chromatography (IC), chemical oxygen demand (COD) and total organic carbon (TOC) analyses were employed. The effect of operational parameters on decolorization such as ozone dosage, pH, dye concentration and the electrolytes was studied. Results showed that the ozonation was a very effective method for reactive dye decolorization. A rapid decrease of pH during the ozonation process gave evidence for production of acidic by-products. Sulfate, nitrate, formate, and acetate were identified as main oxidation products by ion chromatography. The reduction of COD and TOC showed partial degradation and mineralization of this dye. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：34 / 38

页数：5

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