EQUILIBRIUM, ISOTHERM AND KINETIC STUDIES OF FLOURIDE ADSORPTION ON ACTIVATED RICE HUSK ASH

Main Article Content

Michael Emmanuel
Danbature Wilson Lamayi
Zaccheus Shehu
Pipdok Solomon Kwarson

Abstract

Water pollution is a major problem to health and development of humans. The thermodynamic and kinetic parameters of activated rice husk ash (ARHA) for the defluoridation of water were carried out using Langmuir and Freundlich adsorption Isotherms. Results showed that activated rice husk ash is very effective in the defluoridation of water with about 86.1 % fluoride removal at a reaction time of 60 minutes. The values of ΔGads were found to be below -20 kJ mol-1, which is consistent with physisorption mechanism of adsorption. Fluoride adsorption on ARHA was found to be endothermic from the positive values of enthalpy of adsorption ΔHads. Also, ΔSads was found to be positive, indicative of a spontaneous adsorption process of the fluoride

 

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How to Cite
Emmanuel, M., Lamayi, D. W., Shehu, Z., & Kwarson, P. S. (2018). EQUILIBRIUM, ISOTHERM AND KINETIC STUDIES OF FLOURIDE ADSORPTION ON ACTIVATED RICE HUSK ASH. Innovat International Journal Of Medical & Pharmaceutical Sciences, 3(7). https://doi.org/10.24018/10.24018/iijmps.2018.v1i1.22
Section
Original Article(s)
Author Biographies

Michael Emmanuel, Department of Chemistry, Gombe State University, Nigeria

Department of Chemistry, Assistant Lecturer

Danbature Wilson Lamayi, Department of Chemistry, Gombe State University

Department of Chemistry, Senior Lecturer

Zaccheus Shehu, Department of Chemistry, Gombe State University

Department of Chemistry, Assistant Lecturer

Pipdok Solomon Kwarson, Department of Chemistry, Gombe State University

Department of Chemistry, Graduate Assistant

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