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Reviste: » Environmental Engineering and Management Journal» European Journal of Science and Theology» Sănătate Sport și Nutriție
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ELECTROCOAGULATION-TiO2 PHOTO-ASSISTED COMBINED SYSTEM APPLIED TO METHYL ORANGE WASTEWATER REMOVAL Autori: Yi ZhangData aparitiei: March 2013 Revista: Environmental Engineering and Management Journal › Vol. 12 › Nr. 3 ISSN: 1843 - 3707 ![]() Abstract
Combined electrocoagulation (EC) and homogeneous phase TiO2 photo-assisted system were applied to methyl orange (MO) wastewater treatment. Optimum including current density, initial concentration of MO, TiO2 concentration, pH, solution conductivity and electrode distance were investigated. 98% decolorization (initial concentration = 500 mg/L) was achieved in 30 min with a current density of 125 A/m2, electrode distance of 2.5 cm, electrolyte KCl concentration of 0.5 g/L, initial pH of 6.86, and TiO2 concentration of 100 mg/L. Compared with individual EC and TiO2/UV systems, the combined treatment system of ECTiO2/ UV enhanced the MO decoloration efficiency (80% removal in 20 min). The energy consumption of EC-TiO2/UV process for MO removal was about 214 kWh/(kgdye). In this paper, the EC-UV/TiO2 combined system has been proved to be an efficient technology for MO containing wastewater treatment. |