Adsorption of Cd(II) and Pb(II) Ions from Aqueous Solution by Activated Carbon. Al-Khwarizmi Engineering Journal, [S. l.], v. 5, n. 4, p. 13–17, 2009. Disponível em: https://www.alkej.uobaghdad.edu.iq/index.php/alkej/article/view/578. Acesso em: 30 apr. 2025.