+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Nonideal transport of contaminants in heterogeneous porous media: 10. Impact of co-solutes on sorption by porous media with low organic-carbon contents



Nonideal transport of contaminants in heterogeneous porous media: 10. Impact of co-solutes on sorption by porous media with low organic-carbon contents



Chemosphere 89(11): 1302-1306



The impact of co-solutes on sorption of tetrachloroethene (PCE) by two porous media with low organic-carbon contents was examined by conducting batch experiments. The two media (Borden and Eustis) have similar physical properties, but significantly different organic-carbon (OC) contents. Sorption of PCE was nonlinear for both media, and well-described by the Freundlich equation. For the Borden aquifer material (OC=0.03%), the isotherms measured with a suite of co-solutes present (1,2-dichlorobenzene, bromoform, carbon tetrachloride, and hexachloroethane) were identical to the isotherms measured for PCE alone. These results indicate that there was no measurable impact of the co-solutes on PCE sorption for this system. In contrast to the Borden results, there was a measurable reduction in sorption of PCE by the Eustis soil (OC=0.38%) in the presence of the co-solutes. The organic-carbon fractions of both media contain hard-carbon components, which have been associated with the manifestation of nonideal sorption phenomena. The disparity in results observed for the two media may relate to relative differences in the magnitude and geochemical nature of these hard-carbon components.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 054647394

Download citation: RISBibTeXText

PMID: 22717163

DOI: 10.1016/j.chemosphere.2012.05.027


Related references

Nonideal Transport of Contaminants in Heterogeneous Porous Media: 11. Testing the Experiment Condition Dependency of the Continuous-Distribution Rate Model for Sorption-Desorption. Water Air and Soil Pollution 225:, 2014

Nonideal transport of contaminants in heterogeneous porous media: 9 - impact of contact time on desorption and elution tailing. Chemosphere 89(3): 287-292, 2012

Nonideal transport of reactive contaminants in heterogeneous porous media: 7. distributed-domain model incorporating immiscible-liquid dissolution and rate-limited sorption/desorption. JournalofContaminantHydrology74(1-4):83, 2004

Nonideal transport of reactive solutes in heterogeneous porous media: 6. Microscopic and macroscopic approaches for incorporating heterogeneous rate-limited mass transfer. Water Resources Research 36(10): 2853-2867, 2000

Nonideal transport of reactive solutes in heterogeneous porous media; 1, Numerical model development and moments analysis. Journal of Contaminant Hydrology 24(2): 117-143, 1996

Nonideal transport of reactive solutes in heterogeneous porous media; 2, Quantitative analysis of the Borden natural-gradient field experiment. Journal of Contaminant Hydrology 28(1-2): 115-155, 1997

Nonideal transport of reactive solutes in heterogeneous porous media. 5. Simulating regional-scale behavior of a trichloroethene plume during pump-and-treat remediation. Water Resources Research 35(10): 2921-2935, 1999

Nonideal transport of contaminants in heterogeneous porous media: 8. Characterizing and modeling asymptotic contaminant-elution tailing for several soils and aquifer sediments. Chemosphere 81(3): 366-371, 2010

Nonideal transport of reactive solutes in porous media. Pages 130-154 1999, 1999

Modeling coupled processes in porous media: sorption, transformation, and transport of organic solutes. Interacting processes in soil science edited by RJ Wagenet P Baveye BA Stewart: 184, 1992

Multiprocess nonequilibrium and nonideal transport of solutes in porous media. Pages 63-82 1998, 1998

A combined Laplace transform and streamline upwind approach for nonideal transport of solutes in porous media. Water resources research 31(10): 2483-2389, 1995

Sorption and transport in heterogeneous porous media. 1993

Transport of reactive contaminants in heterogeneous porous media. Reviews of Geophysics: , Pages 285-313. 1994., 1994

Modelling the Competitive Sorption Process of Multiple Solutes During their Transport in Porous Media. Environmental Modeling and Assessment 14(5): 615-629, 2009