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. 2, n. 3, p. 052–068, 2026. Disponível em: https://journals.unizik.edu.ng/ujcee/article/view/8856. Acesso em: 14 sep. 2026.