Optimization and toxicity assessment of a combined electrocoagulation, H2 O2 /Fe2+ /UV and activated carbon adsorption for textile wastewater treatment

The Science of the Total Environment
Edison GilPavasMiguel-Ángel Gómez-García

Abstract

In this study, the potential application of sequential Electrocoagulation + Fenton (F) or Photo-Fenton (PF) + Active carbon adsorption (EC + F/PF + AC) processes were analyzed as alternatives for the treatment of an industrial textile wastewater resulting from an industrial facility located in Medellín (Colombia). In order to maximize the organic matter degradation, each step of the treatment was optimized using the Response Surface Methodology. At first, the optimal performance of EC was achieved with Fe electrodes operating at pH = 7, jEC = 10 mA/cm2 and 60 rpm, during 10 min of electrolysis. At these conditions, EC let to remove 94% of the dye's color, 56% of the COD and 54% of the TOC. Next, sequentially applied Fenton or photo-Fenton process (i.e., EC + F/PF), operating at the optimized conditions (pH = 4.3, [Fe2+] = 1.1 mM, [H2O2] = 9.7 mM, stirring velocity = 100 rpm and reaction time = 60 min.), improved the quality of the treated effluent. The EC + F let to achieve total color reduction, as well as COD and TOC removals of 72 and 75%, respectively. The EC + PF reached 100% of color, 76% of COD and 78% of TOC reductions. The EC + F/PF processes were more efficient than EC in elimination of low molecular weight (<5 kDa) c...Continue Reading

References

Jul 2, 2003·Journal of Hazardous Materials·Mehmet KobyaMahmut Bayramoglu
Oct 30, 2004·Journal of Hazardous Materials·Mohammad Y A MollahDavid L Cocke
Dec 31, 2005·Environmental Science & Technology·J A ZazoJ J Rodríguez
May 23, 2006·Journal of Hazardous Materials·Efthalia ChatzisymeonDionissios Mantzavinos
Feb 3, 2009·Journal of Environmental Management·Mohammad M Emamjomeh, Muttucumaru Sivakumar
Feb 7, 2009·Journal of Hazardous Materials·M Villanueva-RodríguezMarco A Quiroz-Alfaro
Jun 10, 2014·Journal of Hazardous Materials·Luis A V de LunaGisela A Umbuzeiro
Apr 11, 2015·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Ahmadreza YazdanbakhshFarshid Ghanbari
Dec 1, 2015·Ultrasonics Sonochemistry·Reza Darvishi Cheshmeh SoltaniMasumeh Mashayekhi
Jun 25, 2016·Environmental Science and Pollution Research International·L B de LimaF Magalhães
Jan 17, 2017·Journal of Environmental Management·Edison GilPavasMiguel Ángel Gómez-García
Jul 4, 2017·The Science of the Total Environment·A Cabrera ReinaJ A Sánchez Pérez

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Citations

Aug 1, 2019·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Enling HuAnd Ka-Lok Chiu
Aug 14, 2020·Water Environment Research : a Research Publication of the Water Environment Federation·Dongyang DengRaymond E Samuel
Nov 3, 2020·International Journal of Environmental Science and Technology : IJEST·E Adar
Jun 17, 2021·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Quan LiYun Wei
Jan 3, 2022·The Science of the Total Environment·Carlos Augusto Morales-ParedesNuria Boluda-Botella

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