Characterization and Investigation of Biosorption of Copper (II) from Simulated Wastewater Using Chemically Modified Cassava Leaves (Manihot esculenta)Ria Grace P. Aabdon, Jose Mari L. Belino, Bhea M. Lambino and Angela Nadine D. PiconadaE3S Web Conf., 557 (2024) 02004DOI: https://doi.org/10.1051/e3sconf/202455702004