Removal of Manganese from Aqueous Solution Using Indonesian Peat

Abstract:

Peat can be used as a natural adsorbent due to its humic acid content having various active functional groups such as carboxylates and hydroxyl groups. Peat soil samples obtained from Pelalawan district, Riau province of Indonesia were selected and their adsorption capacities were investigated using Mn(II) solution as a model solution. The raw peat samples were first prepared by drying at 110°C for 12 h. The adsorption experiment was conducted in batch test using Mn(II) solutions for 360 mins at pH of 5.2 as optimum conditions. The peat samples were analyzed using the Fourier Transform Infrared Spectroscopy, Surface Area Analysis and Scanning Electron Microscopy- Energy Dispersive Spectroscopy. The obtained adsorption data were fitted using Langmuir, Freundlich and BET isotherm models. It was found that the adsorption data followed the Langmuir isotherm model with correlation coefficients (R²) ranging between 0.9866-0.9997 and the adsorption capacities were between 11.99-22.94 mg/g.

• Periodical: Solid State Phenomena (Volume 302)
• Pages: 141-147
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.302.141
• Online since: April 2020
• Authors: Galuh Yuliani*, Maryono Maryono, Rahmaditha Murida, Agus Subarnas, Denni Widhiyatna, Agus Setiabudi
• Keywords: Adsorption, Indonesian, Manganese, Peat

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