![]() ![]() The indirect electrochemical degradation of industrial effluents has become an attractive method in recent years. UV-visible spectra and Fourier transform infrared spectroscopy (FTIR) analysis also shows the cleavage of chromophore group and degradation of textile wastewater during before and after electrolysis. Under the optimum operating conditions, sodium chloride concentration of 0.1 M, current density of 20.0 mA/cm 2, initial pH of 4 and electrolysis time of 75 minutes, the percentage of color and COD removals efficiency reached 96%, while for BOD, TOC and surfactant removals the percentage is slightly lower. The results obtained show that the percentage of color, COD, BOD, TOC and surfactant removal in the aqueous phase was removed effectively. The optimum range for each of these operating variables was experimentally determined. The effects of operational parameters such as supporting electrolyte (sodium chloride) concentration, current density, initial pH and electrolysis time on pH changes and percentage of color, chemical oxidation demand (COD), biochemical oxidation demand (BOD), total organic carbon (TOC) and surfactant removal were determined. Reactive Blue 109, platinum plate electrode (10 mm x 10 mm) and stainless steel (10 mm x 10 mm) were chosen as the best anode and cathode, respectively. After some preliminary studies using C.I. In this study, the optimization of electrochemical oxidation technique for textile wastewater treatment and analysis of the degradation product was experimentally investigated. This work indicates that two processes generally utilized in chemical industry and are a promising alternative for the treatment of the textile wastewater containing reactive dyes. The relationship between decolorization and chemical oxygen demands reduction is finally discussed. Although the mechanisms of two processes are various manners, the results show that the pseudo-first-order rate kinetic oxidation that is fitted the best correlation of the decolorization rate of the dye. The most enormous technique is electrocoagulation, achieving an almost total decolorization faster than anodic oxidation. ![]() The optimum condition is obtained as current density ¼ 79 A/m 2, initial dye concentration ¼ 100 mg/L, pH 7, and NaCl concentration ¼ 2 g/L, for which the predicted color removal efficiencies are 94.71 and 99.8%, rate constants of 0.072 and 0.179 min À1 with half life time 9.36 and 3.87 min and achieved in 60 and 45 min as a time of reaction for anodic oxidation and electro-coagulation, respectively. A typical mono azo dye is tested by using a new fixed bed batch self-gas stirred electrochemical cell. This work deals with the studying the role of oxidizing agents through the comparative behavior of two anodic oxidation and electrocoagulation processes as a technological alternative for the decolorization of C.I Reactive Violet 2 dye. ![]()
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