Copper speciation in soil time evolution and effect of clay amendment
Copper bioavailability, specially to plants, is strongly dependent on its chemical form, as for most metals. Copper-contaminated soil can be treated in situ by the addition of minerals such as Na-bentonite, which mixed with surface soil, can transform this pollutant to non-bioavailable forms. In thi...
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| Otros Autores: | , , , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
| Materias: | |
| Acceso en línea: | http://ri.agro.uba.ar/files/intranet/articulo/2015montenegro.pdf LINK AL EDITOR |
| Aporte de: | Registro referencial: Solicitar el recurso aquí |
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| 003 | AR-BaUFA | ||
| 005 | 20211124155111.0 | ||
| 008 | 181208t2015 |||||o|||||00||||eng d | ||
| 999 | |c 47247 |d 47247 | ||
| 999 | |d 47247 | ||
| 999 | |d 47247 | ||
| 022 | |a 0049-6979 | ||
| 024 | |a 10.1007/s11270-015-2569-1 | ||
| 040 | |a AR-BaUFA |c AR-BaUFA | ||
| 245 | 1 | 0 | |a Copper speciation in soil |b time evolution and effect of clay amendment |
| 520 | |a Copper bioavailability, specially to plants, is strongly dependent on its chemical form, as for most metals. Copper-contaminated soil can be treated in situ by the addition of minerals such as Na-bentonite, which mixed with surface soil, can transform this pollutant to non-bioavailable forms. In this work, shelter experiments were conducted to study the time evolution of Cu speciation, in pristine soil as well as in amended one. A selective sequential extraction method was employed to determine the metal speciation in the samples. The results show that the major metal fraction is the organic matter-bound one, whereas the exchangeable fraction is very low, even the first day after Cu addition. The time evolution shows a slow decrease of the organic-bound Cu and a corresponding increase of the most stable mineral fractions. With the addition of Na-bentonite to copper-contaminated soil, the most stable mineral fractions increase whereas the organic-bound one decreases, showing essentially similar time dependence of the several metal fractions. Sodium bentonite could be effectively used for remediation of soils polluted with Cu. | ||
| 650 | |2 Agrovoc |9 26 | ||
| 653 | 0 | |a SEQUENTIAL SELECTIVE EXTRACTION | |
| 653 | 0 | |a AVAILABILITY | |
| 653 | 0 | |a BENTONITE | |
| 653 | 0 | |a HEAVY METALS | |
| 653 | 0 | |a SOIL POLLUTION | |
| 700 | 1 | |a Montenegro, Andrea C. |9 70354 | |
| 700 | 1 | |a Ferreyroa, Gisele V. |9 67295 | |
| 700 | 1 | |a Parolo, María E. |9 70355 | |
| 700 | 1 | |a Tudino, Mabel B. |9 67749 | |
| 700 | 1 | |9 24365 |a Lavado, Raúl Silvio | |
| 700 | 1 | |a Molina, Fernando V. |9 37981 | |
| 773 | |t Water, Air and Soil Pollution |g vol.226, no.9 (2015), p.1-10, grafs., tbls. | ||
| 856 | |u http://ri.agro.uba.ar/files/intranet/articulo/2015montenegro.pdf |i En reservorio |q application/pdf |f 2015montenegro |x MIGRADOS2018 | ||
| 856 | |u http://www.springer.com |x MIGRADOS2018 |z LINK AL EDITOR | ||
| 942 | 0 | 0 | |c ARTICULO |
| 942 | 0 | 0 | |c ENLINEA |
| 976 | |a AAG | ||