J. Dueñas-Moreno, J. Pérez-Regalado Fuentes, C. Menéndez-Gutiérrez, e I. Pereda-Reyes, “Bioadsorption of Cu2+, Ni2+, Zn2+ and Pb2+ using an activated sludge proces”s, TQ, vol. 38, nº 3, p. 732-749, set. 2018.