Adsorption of 241Am and 226Ra from natural water by wood charcoal

Autor:	Antonio Baeza, J.f. Pastor-Valle, C. Miró, A. Salas, J. Pastor-Villegas
Rok vydání:	2008
Předmět:	Radionuclide Radiation Water flow Natural water chemistry.chemical_element Americium Volumetric flow rate Adsorption chemistry visual_art visual_art.visual_art_medium Point of zero charge Charcoal Nuclear chemistry
Zdroj:	Applied Radiation and Isotopes. 66:95-102
ISSN:	0969-8043
Popis:	The adsorption of (241)Am and (226)Ra from natural water by a granulated wood charcoal was investigated as a function of the solution pH, in the range 4-10, and of the water flow, in the range 3.5-42 cm(3)/min. The percentage adsorption of (241)Am (fairly constant at80% for all pHs) was greater than that of (226)Ra (which increased with increasing pH from approximately 40% up to80%). The results are explained by considering the different species of each radionuclide present at the pH values of the solution at the end of the adsorbent column, and the pH of the point of zero charge of the adsorbent. At pH 6, the elimination of (241)Am from natural water was independent of the water flow, while the elimination of (226)Ra declined linearly as the flow rate was increased.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4609449a68a9813202b38e70256cb384 https://doi.org/10.1016/j.apradiso.2007.07.030 Zobrazit plný text záznamu Full Text from ScienceDirect