Article

Manganese adsorption by sediment in Wadi Tafna, Algeria

Published in: African Journal of Aquatic Science
Volume 42, issue 1, 2017, pages: 1–9
DOI: 10.2989/16085914.2016.1173531
Author(s): N Dali-YoucefDepartment of Ecology and Environment, Algeria, B OuddaneUFR of Chemistry, France, Z DerricheDepartment of Chemistry, Algeria

Abstract

The removal of manganese from aqueous solution by sediment in Wadi Tafna, north-western Algeria, was investigated under batch conditions in 2003. Kinetic data equilibrium removal isotherms were measured at 20 °C. The influence of different experimental parameters, such as contact time, manganese concentration and sediment mass on the removal kinetics of manganese was studied. The content of carbonate in sediment increased the adsorption rate, indicating the active phase towards manganese cations. The process followed pseudo-second-order kinetics. Manganese uptake by sediment was quantitatively evaluated using sorption isotherms. In order to describe the adsorption isotherm mathematically, the experimental data of the removal equilibrium were analysed with Langmuir and Freundlich models revealing that the equilibrium data were perfectly represented using both isotherms.

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