Nitrate removal using natural clays modified by acid thermoactivation
| dc.contributor.affiliation | Pontificia Universidad Católica del Perú. Departamento de Ciencias | |
| dc.contributor.author | Mena-Durán, C.J. | |
| dc.contributor.author | Sun-Kou, M.R. | |
| dc.contributor.author | López, T. | |
| dc.contributor.author | Azamar-Barrios, J.A. | |
| dc.contributor.author | Aguilar, D.H. | |
| dc.contributor.author | Domínguez, M.I. | |
| dc.contributor.author | Odriozola, J.A. | |
| dc.contributor.author | Quintana-Owen, P. | |
| dc.date.accessioned | 2026-03-13T16:58:20Z | |
| dc.date.issued | 2007 | |
| dc.description.abstract | 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. | |
| dc.description.sponsorship | Funding: The authors wish to thank A. Caamal for the technical assistance and to F.F. Gamboa for corrective maintenance on the XRD equipment. This work was partially supported by Conacyt Project Nos. 38493-U and 38490-E, also to Project CyTED “Catalizadores para la protección ambiental”. | |
| dc.identifier.doi | https://doi.org/10.1016/j.apsusc.2006.12.103 | |
| dc.identifier.uri | http://hdl.handle.net/20.500.14657/205862 | |
| dc.language.iso | eng | |
| dc.publisher | Elsevier | |
| dc.relation.ispartof | urn:issn:0169-4332 | |
| dc.rights | info:eu-repo/semantics/closedAccess | |
| dc.source | Applied Surface Science; Vol. 253, Núm. 13 SPEC. ISS. (2007) | |
| dc.subject | Groundwater—Pollution | |
| dc.subject | Bentonite | |
| dc.subject.ocde | https://purl.org/pe-repo/ocde/ford#1.05.03 | |
| dc.title | Nitrate removal using natural clays modified by acid thermoactivation | |
| dc.type | http://purl.org/coar/resource_type/c_6501 | |
| dc.type.other | Artículo | |
| dc.type.version | https://vocabularies.coar-repositories.org/version_types/c_970fb48d4fbd8a85/ |