Lead removal using Fallen Coffee Plant Leaves (FCPL) powder: Characterization, Equilibrium, Kinetics and Thermodynamic studiesM Tukaram Bai, Ch. I. A. Raju, V Sridevi, Nalluri Chittibabu and P VenkateswarluE3S Web Conf., 309 (2021) 01077DOI: https://doi.org/10.1051/e3sconf/202130901077