Yudha Gusti Wibowo, Bimastyaji Surya Ramadan, Sudibyo Sudibyo, Hana Safitri, Arif Rohman, Hutwan Syarifuddin
The present study aims to develop a low-cost and sustainable composite material from solid waste to efficiently treat acid mine drainage (AMD). A modified reactor was used to produce the biochar-CaO composite from solid waste, which was characterized using XRD and SEM to determine the crystal structure, size, and surface morphology. The composite exhibited high adsorption capacity for AMD species, including Fe, Mn, and Mg metals, with an equilibrium point achieved at 300 min of contact time. The percent removal of AMD species varied with pH conditions, and the Langmuir isotherm model was found to describe the adsorption behavior of the composite adequately. The biochar-CaO composite showed a maximum adsorption capacity of 440 mg/g and held significant potential as an economical and efficient solution for AMD remediation. © The Author(s), under exclusive licence to Springer Nature B.V. 2023.
Department of Mining Engineering, Institut Teknologi Sumatera, Lampung, 35365, Indonesia; Department of Environmental Engineering, Faculty of Engineering, Universitas Diponegoro, Semarang, Indonesia; Research Centre for Mining Technology, Innovation and Reseach Agency, Jl. Ir. Sutami, KM 15, Tanjung Bintang, Lampung, Indonesia; Laboratory of Mine Environment, Department of Mining Engineering, Institut Teknologi Sumatera, Lampung, 35365, Indonesia; Department of Geomatic Engineering, Institut Teknologi Sumatera, Lampung, 35365, Indonesia; Postgraduate Program of Environmental Science, Universitas Jambi, Jambi, 36122, Indonesia