Effects of feedstock type and slow pyrolysis temperature in the production of biochars on the removal of cadmium and nickel from water - Higashikawa, Fábio Satoshi; Conz, Rafaela Feola; Colzato, Marina; Cerri, Carlos Eduardo Pellegrino; Alleoni, Luís Reynaldo Ferracciú (Journal of Cleaner Production, 2016)