Application of Box–Behnken Design for the Optimization of Crystal Violet Removal from Aqueous Solutions Using Acorn Waste from Quercus ilexKhaoula Loukili, Smail Imame, Mohamed Karim El Bakkali, Mohamed Lagseir, Mohamed Sadoq, Hafssa Atlas, Soukaina El Bourachdi, Amal Lahkimi and Fatima BoukhlifiE3S Web Conf., 649 (2025) 01019DOI: https://doi.org/10.1051/e3sconf/202564901019