000044581 001__ 44581
000044581 005__ 20180210140350.0
000044581 0247_ $$2DOI$$a10.1016/j.jhydrol.2004.06.041
000044581 0247_ $$2WOS$$aWOS:000226396500008
000044581 037__ $$aPreJuSER-44581
000044581 041__ $$aeng
000044581 082__ $$a690
000044581 084__ $$2WoS$$aEngineering, Civil
000044581 084__ $$2WoS$$aGeosciences, Multidisciplinary
000044581 084__ $$2WoS$$aWater Resources
000044581 1001_ $$0P:(DE-HGF)0$$aMojid, M. A.$$b0
000044581 245__ $$aOn the physical meaning of retardation factor and velocity of a nonlinearly sorbing solute
000044581 260__ $$aAmsterdam [u.a.]$$bElsevier$$c2005
000044581 300__ $$a
000044581 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article
000044581 3367_ $$2DataCite$$aOutput Types/Journal article
000044581 3367_ $$00$$2EndNote$$aJournal Article
000044581 3367_ $$2BibTeX$$aARTICLE
000044581 3367_ $$2ORCID$$aJOURNAL_ARTICLE
000044581 3367_ $$2DRIVER$$aarticle
000044581 440_0 $$03413$$aJournal of Hydrology$$v302$$x0022-1694$$y1
000044581 500__ $$aRecord converted from VDB: 12.11.2012
000044581 520__ $$aThis study investigated the variation of retardation factor and velocity of a lithium (a nonlinearly sorbing solute) plume in relation to the variation of lithium concentration in the plume by using field-measured breakthrough curves (BTCs). A concentration-dependent/time-dependent retardation factor (R-c) and a cell-averaged retardation factor ((R) over bar) (please see Section 2.1 for definitions) of the lithium plume were derived from the BTCs. The concentration-dependent retardation factor, R., is initially large at low concentration of the lithium plume, and it drops steadily with the increasing concentration to a minimum value at the highest concentration of the plume. After the peak concentration has passed away, R-c increases gradually with the decreasing concentration of the plume. The cell-averaged retardation factor, (R) over bar, is close to a section of the concentration-dependent retardation factor, which is obtained at the few highest concentrations in a BTC. (R) over bar varies widely, especially at the low concentrations of the lithium plume, with the distribution coefficient K of lithium and exponent n of the Freundlich isotherm for lithium adsorption. Considerable variations in (R) over bar are also observed between the BTCs at different depths in a monitoring well. A single average retardation factor defined for a monitoring well is thus confounded with the variation of concentrations in the BTCs at different depths. The instantaneous velocity of the lithium plume, called the retarded velocity/local velocity (please see Section 2.2 for definitions), changes with the concentration of the plume in an opposite way from the retardation factor. The retarded velocity is, of necessity, always lower than the constant velocity of the groundwater flow in the aquifer. A cell-averaged velocity of the lithium plume, derived from the cell-averaged retardation factor, is an average velocity of the plume at any point on the travel path for the entire breakthrough time of the plume. This velocity provides little information about the transport processes of lithium in the aquifer. (C) 2004 Elsevier B.V. All rights reserved.
000044581 536__ $$0G:(DE-Juel1)FUEK257$$2G:(DE-HGF)$$aChemie und Dynamik der Geo-Biosphäre$$cU01$$x0
000044581 588__ $$aDataset connected to Web of Science
000044581 650_7 $$2WoSType$$aJ
000044581 65320 $$2Author$$areactive solute
000044581 65320 $$2Author$$anonlinear adsorption
000044581 65320 $$2Author$$avelocity
000044581 65320 $$2Author$$aretardation factor
000044581 7001_ $$0P:(DE-Juel1)129549$$aVereecken, H.$$b1$$uFZJ
000044581 773__ $$0PERI:(DE-600)1473173-3$$a10.1016/j.jhydrol.2004.06.041$$gVol. 302$$q302$$tJournal of hydrology$$v302$$x0022-1694$$y2005
000044581 8567_ $$uhttp://dx.doi.org/10.1016/j.jhydrol.2004.06.041
000044581 909CO $$ooai:juser.fz-juelich.de:44581$$pVDB
000044581 9131_ $$0G:(DE-Juel1)FUEK257$$bEnvironment (Umwelt)$$kU01$$lChemie und Dynamik der Geo-Biosphäre$$vChemie und Dynamik der Geo-Biosphäre$$x0
000044581 9141_ $$y2005
000044581 915__ $$0StatID:(DE-HGF)0010$$aJCR/ISI refereed
000044581 9201_ $$0I:(DE-Juel1)VDB50$$d31.12.2006$$gICG$$kICG-IV$$lAgrosphäre$$x0
000044581 970__ $$aVDB:(DE-Juel1)65126
000044581 980__ $$aVDB
000044581 980__ $$aConvertedRecord
000044581 980__ $$ajournal
000044581 980__ $$aI:(DE-Juel1)IBG-3-20101118
000044581 980__ $$aUNRESTRICTED
000044581 981__ $$aI:(DE-Juel1)IBG-3-20101118