Characteristics of Activated Carbon Made from Alaban Wood (Vitex pubescens Vahl) to Reduce Fe Levels in Peat Water Ninis Hadi Haryanti1*, Suryajaya1, Tetti Novalina Manik1, Maya Safitri1, M. Luthfi Mahfuzh1
Department of Physics
Universitas Lambung Mangkurat (ULM)
Banjarmasin, Indonesia
Abstract
Alaban wood biomass waste (Vitex pubescens Vahl) has been utilized as a material for making activated carbon. Alaban wood waste was obtained from Ranggang Village, South Kalimantan. This study used an experimental method with carbon particle sizes of 60 mesh and 120 mesh. Chemical activation was carried out with 1 M H3PO4 and 1 M NaCl activators, followed by physical activation at 900 C for 1 hour and 2 hours, respectively. This study aims to evaluate the performance of activated carbon made from alaban wood biomass waste (Vitex pubescens Vahl) to reduce Fe levels in peat water. The results showed that based on EDX analysis, there was a significant increase in the average carbon content from before carbonization to the final activation results, namely from 45.32% to 83.89% at a particle size of 60 mesh, while at a particle size of 120 mesh from 70.71% to 83.92%. Adsorption tests showed that activation using H₃-PO₄- for 2 hours resulted in the highest Fe reduction efficiency, reaching 6.98% and an adsorption capacity of 0.25 mg/g. These results indicate that alaban wood biomass activated carbon has the potential to be an environmentally friendly adsorbent for peat water, although its efficiency still needs to be further improved.
Keywords: Activated Carbon, Alaban Wood, H3PO4 and NaCl Activators, Particle Size 60 and 120 mesh, Adsorption Capacity.
