SERTOLI, L.; CARNIER, R.; ABREU, C. A. DE; COSCIONE, A. R.; MELO, L. C. A. COFFEE WASTE BIOCHAR: CHARACTERIZATION AND ZINC ADSORPTION FROM AQUEOUS SOLUTION. Coffee Science - ISSN 1984-3909, v. 14, n. 4, p. 518-529, 9 Dec. 2019.