Sustainable Removal of Phenol from PharmaceuticalWastewater Using Carbonized Rice Husk: Modeling and Optimization via RSM. Unizik Journal of Chemical and Environmental Engineering, [S. l.], v. 2, n. 3, p. 24–40, 2026. Disponível em: https://journals.unizik.edu.ng/ujcee/article/view/8478. Acesso em: 14 jul. 2026.