Experimental and numerical simulation of contaminant transport through layered soil. Issue 4 (October 2014)

• Record Type: Journal Article
• Authors: Sharma, P. K.; Sawant, V. A.; Shukla, S. K.; Khan, Zubair
• Is Part Of: International journal of geotechnical engineering. Volume 8:Issue 4(2014)
• Page Start: 345
• Page End: 351
• Publication Date: 2014-10
• Subjects: Geotechnical engineering -- Periodicals; Soil mechanics -- Periodicals; Rock mechanics -- Periodicals; 624.1513
• DOI: 10.1179/1939787913Y.0000000014
• Languages: English
• ISSNs: 1938-6362

Abstract

<abstract> <title> <x content-type="archive" xml:space="preserve">Abstract</x> </title> <p>In this study, the solute transport through saturated multi-layer soils was studied in the laboratory using the soil column experiment. Sodium chloride was used as a conservative chemical and sodium fluoride as a reactive chemical in the experiment. During the experiment, a pulse-type boundary condition was used. An implicit finite-difference numerical analysis was also carried out to get the numerical solution of advective–dispersive transport including equilibrium sorption and first-order degradation constant for the multi-layered soil. The results of experimental breakthrough curves (BTCs) showed that the order in which the soil layers were stratified in a water-saturated profile did not influence the effluent solute concentration distribution. The results also show the effect of column Peclet number, retardation factor, and first-order degradation coefficient on BTCs for the solute transport in multi-layered soils.</p> </abstract>