Jung, Kyung-Won Hwang, Min-Jin Park, Dae-Seon Ahn, Kyu-Hong 2024-01-20T07:02:30Z 2024-01-20T07:02:30Z 2021-09-05 2015-05-26 1383-5866 https://pubs.kist.re.kr/handle/201004/125427 The present study focused on the treatment of real cotton textile wastewater by combining metal (Al/Fe)-impregnated granular activated carbon (MIGAC) as moving particle electrodes in electrocoagulation, referred to here as the MIGAC-TEC system. The feasibility test clearly indicated that MIGAC significantly accelerated the decolorization and COD removal efficiency. The effects of four parameters: applied voltage, initial pH, MIGAC dosage, and reaction time on the percentage of color and COD removal were investigated using response surface methodology with a central composite design. As results, it was found that the decolorization (R-2 = 0.9576) and COD removal (R2 = 0.9395) were well fitted by a developed quadratic polynomial models and the initial pH was the most influential factor. Through numerical optimization, highly acceptable removal performances of 99.13 +/- 0.21% decolorization and 97.01 +/- 0.18% COD removal efficiency were achieved under statistically optimized conditions, and suggested that the developed system is a very suitable technique for the enhancement of electrocoagulation-based cotton textile wastewater treatment. (C) 2015 Elsevier B.V. All rights reserved. English ELSEVIER RESPONSE-SURFACE METHODOLOGY REACTIVE DYES BED REACTOR ALUMINUM IRON DECOLORIZATION ELECTRODE COAGULATION ADSORPTION PHOSPHATE Combining fluidized metal-impregnated granular activated carbon in three-dimensional electrocoagulation system: Feasibility and optimization test of color and COD removal from real cotton textile wastewater Article 10.1016/j.seppur.2015.03.043 1 SEPARATION AND PURIFICATION TECHNOLOGY, v.146, pp.154 - 167 SEPARATION AND PURIFICATION TECHNOLOGY 146 154 167 scie scopus 000355052900020 2-s2.0-84926483477 Engineering, Chemical Engineering Article RESPONSE-SURFACE METHODOLOGY REACTIVE DYES BED REACTOR ALUMINUM IRON DECOLORIZATION ELECTRODE COAGULATION ADSORPTION PHOSPHATE Electrocoagulation Textile wastewater Metal impregnation Granular activated carbon Fluidized three-dimensional Response surface methodology