Electrochemical degradation of acid green dye in aqueous wastewater dyestuff solutions using a lead oxide coated titanium electrode

Abstract

A modified electrode, which can be used as an anode for electrocatalytic oxidation processes of dyestuff in aqueous solutions, was fabricated by the electrodeposition of a lead oxide layer on a titanium substrate. The modified electrode was used for the electrochemical degradation of an acid green dye. The results of the electrocatalytic oxidation process of the dyestuff solutions were expressed in terms of the remaining dye concentration and chemical oxygen demand (COD) values. The different operating conditions of the treatment process were studied. The optimum operating conditions for the dye and modified electrode were determined, where good results for complete removal of the dye and COD were achieved. The optimum conditions were applied to the treatment of a sulfur black dye in true wastewater solutions.

Studies on degradation of reactive textile dyes solution by electrochemical method

“…Direct oxidation method employed for the complete degradation of organics can obtained with high efficiency using high oxygen over-potential anodes such as PbO 2 , SnO 2 , diamond and boron-doped diamond (BDD) electrodes [20,21]. The treatment of textile wastewater, containing a high concentration of Cl − ions, by an electrochemical method using Ti/RuO 2 , Ti/Pt, Ti/Pt/Ir electrodes was investigated and all the three electrodes proved to be very effective in the direct or indirect oxidation of organics present in the wastewater [22,23]. Active carbon fiber and stainless steel 304 electrodes were also investigated for the treatment of cellulosic fibers by electrochemical oxidation [24].…”

Effect of Operating Parameters on Electrochemical Degradation of Alizarin Red S on Pt and BDD Electrodes

“…Anodic oxidation is an advanced oxidation process with many advantages compared to other known chemical and photochemical ones. The mineralization of pollutants via anodic oxidation involves the direct and indirect electrochemical oxidation [6][7][8]24]. In indirect oxidation, the reaction between the oxidant (Cl 2, * solution…”

Treatment of batik waste using distillation method

“…Some researchers do research, processing textile waste is adsorption of methylene blue by using activated carbon [3], electrochemical oxidation [4][5][6][7][8][9][10]. But some batik waste processing process above many weaknesses that require expensive chemicals, require the process of separation of chemicals with waste water and generate new waste derived from the remaining chemicals that have been used.…”