Journal
ELECTRONIC JOURNAL OF BIOTECHNOLOGY
Volume 14, Issue 5, Pages -Publisher
UNIV CATOLICA DE VALPARAISO
DOI: 10.2225/vol14-issue5-fulltext-8
Keywords
biosorption; breakthrough curve; equilibrium isotherm; manganese; metal removal
Categories
Funding
- FAPERJ - Fundacao Carlos Chagas Filho de Amparo a Pesquisa do Estado do Rio de Janeiro
- UERJ
- CNPq (National Counsel of Technological and Scientific Development)
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This paper presents experimental data of the biosorption of manganese onto Sargassum filipendula in both batch and fixed-bed column systems. Batch equilibrium data were used for nonlinear fittings of the Langmuir and Freundlich isotherms. A mathematical model based on mass balances in the fluid and in the sorbent was applied to represent the experimental fixed-bed column data. The utilization of isotherm parameters from the batch experiments in the breakthrough model implied a significant mismatch in relation to the laboratory data. Alternatively, additional fixed-bed column data provided new parameters for the isotherm evaluation, and the corresponding simulated profile of the breakthrough curve reached better agreement to the experimental results.
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