Modeling of Adsorptive Filtration of a Leather Dye in a Fixed Bed Column
| Autor: | José Soares, Regina de Fátima Peralta Muniz Moreira, Ticiane P. Sauer, Leonardo Casaril, André Luiz Bertoldi Oberziner |
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| Rok vydání: | 2006 |
| Předmět: |
Aqueous solution
Chromatography Process Chemistry and Technology General Chemical Engineering Langmuir adsorption model chemistry.chemical_element Filtration and Separation General Chemistry law.invention symbols.namesake Adsorption chemistry Chemical engineering law symbols medicine Carbon Filtration Equilibrium constant BET theory Activated carbon medicine.drug |
| Zdroj: | Separation Science and Technology. 41:501-513 |
| ISSN: | 1520-5754 0149-6395 |
| DOI: | 10.1080/01496390500460765 |
| Popis: | Activated carbons offer an efficient option for the removal of organic and inorganic contaminants from water. However, due to its high costs and difficulty in the regeneration, other low cost adsorbents have been used. In this work, the adsorption capacity of an adsorbent carbon with high iron oxides concentration was compared with that of a commercial activated carbon in the removal of a leather dye from an aqueous solution. The adsorbents were characterized using SEM/EDAX analysis and BET surface area. The capacity of adsorption of the adsorbents was evaluated through the static method at 25°C. The results showed that the color removal was due to the adsorption and precipitation of the dye on the surface of the solids. The adsorption equilibrium was described according to the linear model for the adsorbent carbon and the equilibrium constant was 0.02 L g−1. The equilibrium of adsorption on activated carbon exhibited a behavior typical of the Langmuir isotherm and the monolayer coverage was 24.3... |
| Databáze: | OpenAIRE |
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