期刊
ELECTRONIC JOURNAL OF BIOTECHNOLOGY
卷 14, 期 5, 页码 -出版社
UNIV CATOLICA DE VALPARAISO
DOI: 10.2225/vol14-issue5-fulltext-8
关键词
biosorption; breakthrough curve; equilibrium isotherm; manganese; metal removal
资金
- FAPERJ - Fundacao Carlos Chagas Filho de Amparo a Pesquisa do Estado do Rio de Janeiro
- UERJ
- CNPq (National Counsel of Technological and Scientific Development)
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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