Comparative decolorization of dyes in textile wastewater using biological and chemical treatment

被引：194

作者：

Hayat, Huma ^{[1
]}

Mahmood, Qaisar ^{[1
]}

Pervez, Arshid ^{[1
]}

Bhatti, Zulfiqar Ahmad ^{[1
]}

Baig, Shams Ali ^{[1
]}

机构：

[1] COMSATS Inst Informat Technol, Dept Environm Sci, Abbottabad 22060, Pakistan

来源：

SEPARATION AND PURIFICATION TECHNOLOGY | 2015年 / 154卷

关键词：

Decolorization; Mineralization; Textile wastewater; Fenton's reagent; Biological reactor; ACUTE TOXICITY; COLOR REMOVAL; FENTON; OXIDATION; COD;

D O I：

10.1016/j.seppur.2015.09.025

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Textile wastewater (TW) is one of the most hazardous wastewaters for the environment when discharged without any proper treatment. A comparative study was conducted to investigate the removal efficiency of color, chemical oxygen demand (COD) and turbidity from real textile industry wastewater using anaerobic IC reactor and Fenton's process with and without pH adjustment. Color, COD and turbidity removal efficiencies have been studied for 25%, 50%, 75% and 100% textile wastewater. Results demonstrated that a maximum color removal efficiency (>92%) was recorded in Fenton's process at pH 3 for 100% sample. However, maximum COD removal efficiency of 87% was observed in IC reactor for 100% sample. Thus, Fenton's reagent at pH 3 was found highly effective for color removal and IC reactor observed to be efficient for COD removal. Furthermore, Fenton's process without pH adjustment was found higher turbidity removal efficiency as compared to other treatments. Findings from this suggested that the selective treatment process could be highly promising for the decolorization of textile wastewater and can also be practically implementable. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：149 / 153

页数：5

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