Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Vannapha Phrommavanh"'
Autor:
Mohamed L. Merroun, Ahinara Amador-García, Margarita Lopez-Fernandez, Michael Descostes, Cristina Moreno-Romero, Iván Sánchez-Castro, Vannapha Phrommavanh, Jérémy Nos
Publikováno v:
Journal of Environmental Radioactivity. 166:130-141
The present work characterizes at different levels a number of bacterial strains isolated from porewaters sampled in the vicinity of two French uranium tailing repositories. The 16S rRNA gene from 33 bacterial isolates, corresponding to the different
Publikováno v:
Environmental Pollution. 214:114-123
The Diffusive Gradients in Thin Films (DGT) technique using PIWBA resin (The Dow Chemical Company) was developed and validated for the measurement of uranium (U) concentration in natural and uranium mining influenced waters. The U uptake on the PIWBA
Autor:
Jagoda Drozdzak, Yue Gao, Michael Descostes, Jérémy Nos, Vannapha Phrommavanh, Martine Leermakers
Publikováno v:
Chemosphere. 155:142-151
The Diffusive Gradients in Thin films (DGT) technique was used to analyse U, (226)Ra and other trace metals in stream water and soil porewater in a wetland in France impacted by uranium mining. High resolution profiles of metals in soil porewater obt
Autor:
Vannapha Phrommavanh, Marine Ballini, Michel Cathelineau, Michael Descostes, Catherine Beaucaire, Jérémy Nos, Clémence Besançon, Chantal Peiffert, Camille Chautard, Aurélie Boizard, Thomas Vercouter, Evelyne Vors
Publikováno v:
Journal of Environmental Radioactivity
Journal of Environmental Radioactivity, Elsevier, 2020, 218, pp.106223. ⟨10.1016/j.jenvrad.2020.106223⟩
Journal of Environmental Radioactivity, 2020, 218, pp.106223. ⟨10.1016/j.jenvrad.2020.106223⟩
Journal of Environmental Radioactivity, Elsevier, 2020, 218, pp.106223. ⟨10.1016/j.jenvrad.2020.106223⟩
Journal of Environmental Radioactivity, 2020, 218, pp.106223. ⟨10.1016/j.jenvrad.2020.106223⟩
International audience; The mill tailings from uranium mines constitute very low-level, long-lived, radioactive process waste. Their long-term management therefore requires a good understanding of the geochemical mechanisms regulating the mobility of
Publikováno v:
Analytica Chimica Acta. 889:71-81
A new resin- Diphonix(®) in Diffusive Gradients in Thin Films (DGT) technique for the determination of uranium was investigated and compared with previously used binding phases for uranium, Chelex(®)-100 and Metsorb™. The DGT gel preparation and
Autor:
Martine Gérard, Georges Calas, Régis Roy, Vannapha Phrommavanh, Jérémy Nos, C. Chautard, Michael Descostes, Catherine Beaucaire, L. Galoisy
Publikováno v:
Procedia Earth and Planetary Science
Procedia Earth and Planetary Science, 17, pp.308-311, 2017, ⟨10.1016/j.proeps.2016.12.067⟩
Procedia Earth and Planetary Science, 17, pp.308-311, 2017, ⟨10.1016/j.proeps.2016.12.067⟩
he uranium (U) mining site of Bois Noirs Limouzat located in the central France, produced 7,000 tons of U from 1959 to 1980. Tailings containing non extracted U and its radioactive progenies are currently stored under water in a basin extending over
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2e1e3a27f3e1d66da6bdedbd7ccf3c89
https://hal.science/hal-03952151
https://hal.science/hal-03952151
Publikováno v:
Procedia Earth and Planetary Science. 7:85-88
Understanding the environmental behavior of U and 226Ra is important for remediation of former mining sites and assessment of their durability. The aim of this study is to determine the sorption properties of an acidic peat for U and 226Ra, located n
Autor:
Marie-Bénédicte Koko, Michael Descostes, Hélène De Boissezon, Martine Leermakers, Jérémy Nos, Vannapha Phrommavanh
Publikováno v:
Procedia Earth and Planetary Science. 7:693-696
Surface waters downstream from former uranium mines have been studied in order to characterize U and 226 Ra transport and to assess their bioavailability. Filtrations and ultrafiltrations (UF) have been performed (0.45 μm/0.2 μm/500 kDa/100 kDa/10
Autor:
Yue Gao, Vannapha Phrommavanh, M. Elskens, Michael Descostes, Jagoda Drozdzak, Martine Leermakers
Publikováno v:
Analytica chimica acta. 913
The performance of the Diffusive Gradients in Thin films (DGT) technique with Chelex(®)-100, Metsorb™ and Diphonix(®) as binding phases was evaluated in the vicinity of the former uranium mining sites of Chardon and L'Ecarpiere (Loire-Atlantique
Autor:
Flora Boekhout, Laurence Galoisy, Michael Descostes, Georges Calas, Régis Roy, Vannapha Phrommavanh, Adrien Déjeant
Publikováno v:
The Science of the total environment.
This study investigated the evolution of uranium distribution and speciation in mill tailings from the COMINAK mine (Niger), in production since 1978. A multi-scale approach was used, which combined high resolution remote sensing imagery, ICP-MS bulk