IJEMS (Indonesian Journal of Environmental Management and Sustainability)
Vol. 2 No. 2 (2018): June

Adsorption and Regeneration of Indonesian Natural Pumice for Total Chromium Removal from Aqueous Solution

Indah, Shinta (Unknown)
Helard, Denny (Unknown)
Marchelly, Fitria (Unknown)
Putri, Dean Eka (Unknown)

Article Info

Publish Date
22 Jun 2018


To investigate the potential of adsorption and regeneration of natural pumice from West Sumatera Indonesia for total chromium (Cr) removal from aqueous solution, batch experiments in multiple adsorption-desorption cycles were performed. The results indicated that the optimum condition of total Cr removal were 3 of pH solution, 0.3 g/L of adsorbent dose, 60 min of contact time of adsorption, <63 ?m of diameter of adsorbent, and 1 mg/L of total Cr initial concentration with 2.226 mg Cr/g pumice of total Cr uptake. The experimental data obtained were fitted with the Freundlich adsorption isotherm within the concentration range studied. Desorption efficiencies for total Cr ions by using 0.1 M HCl as desorbing agent were in the range of 31-32%. Although complete desorption were not attained, the natural pumice could be sufficiently reused up to 3 cycles of adsorption- desorption with increasing trend in total Cr uptake that may due to the surface modification of natural pumice caused by HCl. Overall results revealed that easy availability of natural pumice as local mineral in West Sumatra, Indonesia and its ability to adsorb and retain total Cr will create more interest to develop new natural adsorption method of pollutant removal from solution

Copyrights © 2018

Journal Info




Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management Energy Environmental Science Public Health


This journal aimed to be a platform for academics, regulators, practitioners, and also policy makers to share and discuss how to manage their surrounding environment in order to build and develop a sustainable environment. The scope of this journal includes all issues of fundamental environmental ...