Alvear-Alayon M.R., Mallarino-Miranda L., Ramos L.M., Arrieta C.M., Guerra J.D., Leones J.L., Tejeda-Benitez L., 2022, Adsorption of Nickel in a Continuous System Using Biochar Obtained from Pyrolysis of Rice Husk at Low Temperature, Chemical Engineering Transactions, 92, 559-564.