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| Título: | Nitrate removal using natural clays modified by acid thermoactivation |
| Autor: | Mena-Durán, C. J.; Sun Kou, M. R.; López, T.; Azamar-Barrios, J. A.; Aguilar, D. H.; Domínguez, M. I.  ; Odriozola, José Antonio |
| Palabras clave: | Nitrates Adsorption Montmorillonites Infrared spectroscopy X-ray diffraction BET |
| Fecha de publicación: | 5-ene-2007 |
| Citación: | Applied Surface Science 253(13): 5762-5766 (2007) |
| Resumen: | Groundwater pollution by nitrates is a widespread problem in many locations in the world. The underground aquatic mantle of the Peninsula of Yucatan is highly vulnerable due to its karstic nature. Adsorption methods are a good choice for nitrate elimination. In this work, a natural calcium bentonite was modified by acid thermoactivation with HCl and H2SO4, and tested as a media for nitrate removal in an aqueous solution. The nitrate concentration in the solution was measured by FT-IR, using the Lambert–Beer law. Clay characterization was carried out by X-ray diffraction and FT-IR spectroscopy; surface area was measured by the BET method. |
| Descripción: | 5 pages, 5 figures.-- PACS nrs.: 61.10.Nz; 78.30.Hv; 81.20.Ka.-- Printed version published on Apr 30, 2007. Issue title: Sixth International Symposium on Effects of surface heterogeneity in adsorption and catalysis on solids - ISSHAC-VI (Zakopane, Poland, Aug 28-Sep 2, 2006). |
| Versión del editor: | http://dx.doi.org/10.1016/j.apsusc.2006.12.103 |
| URI: | http://hdl.handle.net/10261/10200 |
| DOI: | 10.1016/j.apsusc.2006.12.103 |
| ISSN: | 0169-4332 |
| Aparece en las colecciones: | (ICMS) Artículos |
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