Artículos de revistas
Biosorption of chromium(VI) using a Sargassum sp packed-bed column
Registro en:
Bioresource Technology. Elsevier Sci Ltd, v. 99, n. 8, n. 3094, n. 3099, 2008.
0960-8524
WOS:000254072200052
10.1016/j.biortech.2007.05.071
Autor
Vieira, MGA
Oisiovici, RM
Gimenes, ML
Silva, MGC
Institución
Resumen
Chromium(VI) is present in several industrial wastewaters and it can cause health and environmental hazards above certain concentrations. Equilibrium studies have shown the feasibility of using Sargassum sp. algae for chromium removal from aqueous solutions by biosorption. However, for the design and operation of chromium biosorption processes, dynamic flow studies are required. The objective of the study was to examine chromium(VI) removal from an aqueous solution using a packed-bed column with Sargassum sp. algae as a biosorbent. The dynamic behavior of the biosorption column was investigated through experiments and the influence of operating conditions, such as initial chromium concentration, flow rate and amount of biosorbent, on the column removal capacity have been analyzed using the factorial design methodology. The capacity of removal obtained at optimum conditions was 19.06 mg of metal/g biosorbent. (c) 2007 Elsevier Ltd. All rights reserved. 99 8 3094 3099