ASMARA, Anjar; KAMILA , Nisaul; KAMILA, Nisaul. OPTIMISATION OF SULFURIC ACID CONCENTRATION FOR ENHANCED FE2+ ION REMOVAL USING ACTIVATED CHARCOAL FROM BOILED PEANUT SHELLS: CHARACTERISATION AND PERFORMANCE EVALUATION . Lingkar: Journal of Environmental Engineering, [S. l.], v. 5, n. 1, p. 10–18, 2024. Disponível em: https://journal.ar-raniry.ac.id/index.php/lingkar/article/view/5080. Acesso em: 11 aug. 2025.