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The objective of the present work was to study the adsorption process in a packed bed column using bioadsorbents obtained from agro-industrial by-products (plantain starch pulp, yam starch pulp and palm oil bagasse) for the elimination of Cr (VI) and Ni (II) in aqueous solution. The effect and statistical incidence on the changes in the temperature and bed height in the adsorption process of heavy metals in a column packed with the biomasses under study, was analysed, the metal concentration was fixed at 100 ppm and the flow in 0.75 mL/s. From the adsorption tests made to the conditions studied and the statistical analysis of them, it was determined that the temperature and the height of the bed significantly affect the adsorption of Cr (VI) in the plantain cake, and the height of the bed affects Ni (II) adsorption on yam cake and palm bagasse.

Estudio Termodinámico de la Remoción de Níquel y Cromo en Solución Acuosa usando Adsorbentes de Origen Agroindustrial