D. Q. MELO, J. T. OLIVEIRA, R. N. P. TEIXEIRA, V. O. SOUSA NETO, R. F. NASCIMENTO, C. B. VIDAL, G. S. C. RAULINO, Removal of Cu2+ ions from aqueous solutions using modified stalk of Ricinus communis L. in a batch and fixed bed column: Optimization using statistical design methods, Blucher Chemical Engineering Proceedings, Volume 1, 2015, Pages 8424-8431, ISSN 23591757, http://dx.doi.org/10.5151/chemeng-cobeq2014-1262-20192-146966 (www.proceedings.blucher.com.br/article-details/removal-of-cu2-ions-from-aqueous-solutions-using-modified-stalk-of-ricinus-communis-l-in-a-batch-and-fixed-bed-column-optimization-using-statistical-design-methods-17689) Palavras-chave:: ;