dc.creator | Periáñez Rodríguez, Raúl | es |
dc.creator | Absi, Abdeslam | es |
dc.creator | Villa Alfageme, María | es |
dc.creator | Moreno González, Helena Patricia | es |
dc.creator | Manjón Collado, Guillermo | es |
dc.date.accessioned | 2022-07-12T10:55:14Z | |
dc.date.available | 2022-07-12T10:55:14Z | |
dc.date.issued | 2005 | |
dc.identifier.citation | Periáñez Rodríguez, R., Absi, A., Villa Alfageme, M., Moreno González, H.P. y Manjón Collado, G. (2005). Self-cleaning in an estuarine area formerly affected by 226Ra anthropogenic enhancements: numerical simulations. Science of the Total Environment, 339 (1-3), 207-218. | |
dc.identifier.issn | 0048-9697 | es |
dc.identifier.uri | https://hdl.handle.net/11441/135261 | |
dc.description.abstract | A numerical model of the Odiel–Tinto estuary (Spain) has been developed to study the self-cleaning process that was
evidenced from 226Ra measurements in water and sediments collected in the period 1999–2002, after direct releases from a
fertilizer complex ceased (in 1998). The hydrodynamic model is first calibrated, and standard tidal analysis is carried out to
calculate tidal constants required by the dispersion code to determine instantaneous water currents and elevations over the
estuary. In this way, long-term simulations may be carried out. The dispersion code includes advective/diffusive transport of
radionuclides plus exchanges with bottom sediments described through a kinetic approach. The dispersion model is first tested
by comparing computed and measured 226Ra concentrations over the estuary resulting after releases in the Odiel and Tinto
rivers. Next, it is applied to simulate the self-cleaning process of the estuary. The time evolution of radium concentrations in bed
sediments is in generally good agreement with observations. The computed sediment halving time of the estuary is 510 days,
which also is in good agreement with that estimated from measurements | es |
dc.format | application/pdf | es |
dc.format.extent | 12 | es |
dc.language.iso | eng | es |
dc.publisher | Elsevier | es |
dc.relation.ispartof | Science of the Total Environment, 339 (1-3), 207-218. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Radium | es |
dc.subject | Odiel-Tinto estuary | es |
dc.subject | Phosphogypsum | es |
dc.subject | Hydrodynamics | es |
dc.subject | Numerical modelling | es |
dc.subject | Sediment | es |
dc.subject | Kinetic rates | es |
dc.title | Self-cleaning in an estuarine area formerly affected by 226Ra anthropogenic enhancements: numerical simulations | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/publishedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Física Aplicada I | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Física Aplicada II | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear | es |
dc.relation.publisherversion | https://www.sciencedirect.com/science/article/pii/S0048969704005765?via%3Dihub | es |
dc.identifier.doi | 10.1016/j.scitotenv.2004.07.029 | es |
dc.journaltitle | Science of the Total Environment | es |
dc.publication.volumen | 339 | es |
dc.publication.issue | 1-3 | es |
dc.publication.initialPage | 207 | es |
dc.publication.endPage | 218 | es |
dc.identifier.sisius | 6682449 | es |