Dagnew T, Bantie Z. Process optimization of Cr(VI) removal from aqueous solution using activated orange peel for treatment of tannery wastewater. E.Jor.Sci.tech [Internet]. 2025 Sep. 1 [cited 2026 Apr. 28];16(1):51-75. Available from: https://journals.bdu.edu.et/index.php/jste/article/view/2891