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All Journal Journal of Environment and Sustainability
Janet Tio Panny Tindaon
Department of Environmental Engineering, Institut Teknologi Kalimantan, Indonesia
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Energy Environmental Science

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Adsorption of iron and manganese from acid mine drainage by zalacca (Salacca zalacca) peel- activated carbon Eka Anifah; Ismi Khairunnissa Ariani; Janet Tio Panny Tindaon; Basransyah
Sustinere: Journal of Environment and Sustainability Vol. 8 No. 1 (2024): pp. 1 - 137 (April 2024)
Publisher : Center for Science and Technology, IAIN Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22515/sustinere.jes.v8i1.366

Abstract

The low pH and high metal concentration in acid mine drainage cause environmental problems and affect human health. Adsorption not only removes the pollutants but also increases pH levels. Natural adsorbents have gained attention because of their widespread availability, low cost, and effectiveness. Zalacca peel waste is among the biomass materials showing promise as activated carbon for removing contaminants from acid mine drainage. This study aims to investigate the adsorption capacity of activated carbon from zalacca peel for removing iron and manganese from acid mine drainage. Adsorption studies were conducted in batch experiments using various dosages and contact times. Optimal results were achieved with a dosage of 0.8 grams per 100 mL and contact time of 60 minutes, resulting in 80% removal efficiency for iron and 24% for manganese. The neutralization process occurred post-adsorption, bringing the final pH close to neutral levels, suitable for environmentally safe discharge. Experiment data were fitted to the Freundlich isotherm and pseudo-second order kinetics. FTIR analysis revealed functional groups including C-H, C-O, and C=C was found in the adsorbent. Furthermore, surface area and pore volume experienced slight increases following activation with KOH.
Co-Authors Anifah, Eka Masrifatus Basransyah Ismi Khairunnissa Ariani