Abstract
<span lang="EN-US">The textile dyeing industry consumes large quantities of water and produces large volumes of wastewater from different steps in the dyeing and finishing processes. Wastewater from printing and dyeing units is often rich in color, containing residues of reactive dyes and chemicals, such as complex components. This study investigates the decolorization of synthetic dye wastewater containing textile dye Reactive Violet 5 (RV5) by electrocoagulation. A laboratory batch reactor was used to investigate the effect of various operating parameters using aluminium (Al), iron (Fe) and stainless steel (SS) anode. The effect of dye concentration, current density, supporting electrolyte, supporting electrolyte concentration, electrolysis duration, and material of anode of the systems were evaluated. Color removal efficiency was 22, 91.5 and 99.8 % in 15 minutes using Al, Fe and SS anode, respectively (j = 10 mA/cm<sup>2</sup>, c<sub>NaCl </sub>= 0.171 M).</span>
Highlights
Production processes of the textile industry require a huge quantity of water and chemicals, which causes emergence of a huge quantity of wastewater containing acids, bases, dissolved solids, toxic substances and different dyes that present even in small concentrations have to be removed
This study investigates the decolorization of synthetic dye wastewater containing textile dye Reactive Violet 5 (RV5) by electrocoagulation
The aim of this study is to examine electrochemical removal of the textile azo dye Reactive Violet 5 (C20H16N3O15S4 × 3Na) in aqueous solution using aluminium (Al), iron (Fe) and stainless steel (SS) as electrode material
Summary
Production processes of the textile industry require a huge quantity of water and chemicals, which causes emergence of a huge quantity of wastewater containing acids, bases, dissolved solids, toxic substances and different dyes that present even in small concentrations have to be removed. Traditional methods for the treatment of textile industry wastewater represent a combination of biological, physical and chemical methods [1,2]. Biological treatment of dyeing wastewater is cheaper than other methods, but less efficient in decolorization due to toxicity of doi:10.5599/jese.223.
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