Adsorption, desorption and fractionation of As(V) on untreated and mussel shell-treated granitic material
| Autor: | N. Seco-Reigosa, L. Cutillas-Barreiro, J. C. Nóvoa-Muñoz, M. Arias-Estévez, E. Álvarez-Rodríguez, M. J. Fernández-Sanjurjo, A. Núñez-Delgado |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | Solid Earth, Vol 6, Iss 1, Pp 337-346 (2015) |
| Druh dokumentu: | article |
| ISSN: | 1869-9510 1869-9529 |
| DOI: | 10.5194/se-6-337-2015 |
| Popis: | As(V) adsorption and desorption were studied on granitic material, coarse and fine mussel shell and granitic material amended with 12 and 24 t ha−1 fine shell, investigating the effect of different As(V) concentrations and different pH as well as the fractions where the adsorbed As(V) was retained. As(V) adsorption was higher on fine than on coarse shell. Mussel shell amendment increased As(V) adsorption on granitic material. Adsorption data corresponding to the unamended and shell-amended granitic material were satisfactory fitted to the Langmuir and Freundlich models. Desorption was always −1) was added. Regarding the effect of pH, the granitic material showed its highest adsorption (66%) at pH |
| Databáze: | Directory of Open Access Journals |
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