Removal of Methylene Blue from Industrial Effluents Using Corncob Activated Carbon
N’guessan Louis Berenger Kouassi
*
Département de Mathématique Physique Chimie, UFR Sciences Biologiques, Université Peleforo Gon Coulibaly, BP 1328 Korhogo, Côte d’Ivoire.
Luc Dou Blonde
Laboratoire de Constitution et Réaction de la Matière (LCRM), UFR Sciences des Structures de la Matière et Technologie, Université Félix Houphouët-Boigny, 22 BP 582 Abidjan, Côte d’Ivoire.
Koffi Martin N’Goran
Laboratoire de Constitution et Réaction de la Matière (LCRM), UFR Sciences des Structures de la Matière et Technologie, Université Félix Houphouët-Boigny, 22 BP 582 Abidjan, Côte d’Ivoire.
Albert Trokourey
Laboratoire de Constitution et Réaction de la Matière (LCRM), UFR Sciences des Structures de la Matière et Technologie, Université Félix Houphouët-Boigny, 22 BP 582 Abidjan, Côte d’Ivoire.
*Author to whom correspondence should be addressed.
Abstract
Water contamination by methylene blue (MB) is a threat to human health and aquatic biota due to its toxicity, persistence, and non-biodegradability. However, there is little data available in the literature on the methylene blue removal approach from industrial effluents by corncob-activated carbon. The purpose of this study was to investigate the adsorption of methylene blue from aqueous solution and industrial effluents by corncob-activated carbon. The methylene blue adsorption capacities of corncob-activated carbon were investigated by batch adsorption experiments both in synthetic solutions and industrial effluents. The optimum pH value was 10.3 with a removal percentage of 93.4 %. Methylene blue adsorption by activated carbon followed second-order kinetics and was well fitted by the Langmuir model. The maximum adsorption capacity (Qmax) value was 11.36 mg/g. This study revealed that corncob-activated carbon has successfully removed methylene blue from industrial effluents, with percentages ranging from 65.14 %, and 76.28 %. The excellent methylene blue dye removal efficiency with corncob activated from industry effluents suggests its promising potential in remediating methylene blue contaminated wastewater.
Keywords: Methylene blue, adsorption, activated carbon, industrial effluents