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https://hdl.handle.net/1822/9266| Title: | Biosorption of Cr VI supported on mordenite zeolite |
| Author(s): | Figueiredo, Hugo Silva, Bruna Andreia Nogueira Airosa Quintelas, C. Neves, Isabel C. Tavares, M. T. |
| Keywords: | Zeolite Chromium Biosorption Mordenite |
| Issue date: | Sep-2008 |
| Citation: | FERREIRA, E. C. ; MOTA, M., ed. lit. – “Chempor 2008 : proceedings of the International Chemical and Biological Engineering Conference, 10, Braga, 2008”. Braga : Departamento de Engenharia Biológica da Universidade do Minho, 2008. ISBN 97 978-972-97810-3-2. p 248-252. |
| Abstract(s): | This work reports the usage of a combined zeolite-biosorbent system for the removal and recovery of aqueous CrVI. The biosorption system consisted of a bacterium, Arthrobacter viscosus, supported on two mordenite (MOR) type zeolites with different Si/Al ratio, HMOR (Si/Al = 10) and NaMOR (Si/Al = 6.5). The results show that the biofilm of A. viscosus supported on MOR zeolite is able to recover chromium from dilute solutions. For both biosorption-MOR systems, the maximum removal was obtained for initial concentration of 20 mgCr/L. However, the best results were obtained for HMOR-system with a removal of 52.1 % for the diluted concentration and the best uptake, 3.3 mgCr VI/gzeolite, was achieved for the initial concentration of 100 mgCr/L. The Langmuir isotherm model was applied with good fitting to the experimental data. |
| Type: | Conference paper |
| URI: | https://hdl.handle.net/1822/9266 |
| ISBN: | 978-972-97810-3-2 |
| Access: | Open access |
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Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Figueiredo[1].pdf | 576,35 kB | Adobe PDF | View/Open |
