dc.creator | Cáceres, Lizethly | |
dc.creator | Escudey, Mauricio | |
dc.creator | Fuentes, Edwar | |
dc.creator | Báez, María E. | |
dc.date.accessioned | 2018-12-20T15:04:17Z | |
dc.date.available | 2018-12-20T15:04:17Z | |
dc.date.created | 2018-12-20T15:04:17Z | |
dc.date.issued | 2010 | |
dc.identifier | Journal of Hazardous Materials, Volumen 179, Issue 1-3, 2018, Pages 795-803 | |
dc.identifier | 03043894 | |
dc.identifier | 10.1016/j.jhazmat.2010.03.074 | |
dc.identifier | https://repositorio.uchile.cl/handle/2250/157527 | |
dc.description.abstract | Metsulfuron-methyl sorption kinetic was studied in Andisol and Ultisol soils in view of their distinctive physical and chemical properties: acidic pH and variable surface charge. Different kinetic models were applied to the experimental results. The pseudo-second-order model fitted sorption kinetics data better than the pseudo-first-order model. The rate constant and the initial rate constant values obtained through this model demonstrated the different behavior of metsulfuron-methyl in both kinds of soils, both parameters being the highest for Andisol. The application of Elovich equation, intraparticle diffusion model and a two-site nonequilibrium model (TSNE) allowed to conclude that: (i) the high organic matter content is the governing factor for Andisols where mass transfer across the boundary layer, and in a lesser degree, intraparticle diffusion were the two processes controlling sorption kinetic and (ii) the mineral composition was more relevant in Ultisols where rate was contro | |
dc.language | en | |
dc.rights | http://creativecommons.org/licenses/by-nc-nd/3.0/cl/ | |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Chile | |
dc.source | Journal of Hazardous Materials | |
dc.subject | Andisols | |
dc.subject | Sorption kinetic | |
dc.subject | Sulfonylurea herbicides | |
dc.subject | Ultisols | |
dc.subject | Variable charge soils | |
dc.title | Modeling the sorption kinetic of metsulfuron-methyl on Andisols and Ultisols volcanic ash-derived soils: Kinetics parameters and solute transport mechanisms | |
dc.type | Artículo de revista | |