Sustainable Removal of Phenol from Pharmaceutical Wastewater Using Carbonized Rice Husk: Modeling and Optimization via RSM. Unizik Journal of Chemical and Environmental Engineering, [S. l.], v. 1, n. 1, 2026. Disponível em: https://journals.unizik.edu.ng/ujcee/article/view/8601. Acesso em: 3 aug. 2026.