On the importance of diffusion and compound-specific mixing for groundwater transport: an investigation from pore to field scale

Journal of Contaminant Hydrology
Massimo RollePeter K Kitanidis

Abstract

Mixing processes significantly affect and limit contaminant transport and transformation rates in the subsurface. The correct quantification of mixing in groundwater systems must account for diffusion, local-scale dispersion and the flow variability in heterogeneous flow fields (e.g., flow-focusing in high-conductivity and de-focusing in low-conductivity zones). Recent results of multitracer laboratory experiments revealed the significant effect of compound-specific diffusive properties on the physical displacement of dissolved species across a representative range of groundwater flow velocities. The goal of this study is to investigate the role of diffusion and compound-specific mixing for solute transport across a range of scales including: (i) pore-scale (~10⁻² m), (ii) laboratory bench-scale (~10⁰ m) and (iii) field-scale (~10² m). We investigate both conservative and mixing-controlled reactive transport using pore-scale modeling, flow-through laboratory experiments and simulations, and field-scale numerical modeling of complex heterogeneous hydraulic conductivity fields with statistical properties similar to the ones reported for the extensively investigated Borden aquifer (Ontario, Canada) and Columbus aquifer (Mississipp...Continue Reading

References

Jun 20, 2003·Journal of Contaminant Hydrology·Melissa Levy, Brian Berkowitz
Feb 4, 2006·Journal of Contaminant Hydrology·J D McNeilR A Schincariol
Dec 20, 2008·Journal of Contaminant Hydrology·Robert D BauerChristian Griebler
Nov 10, 2009·Journal of Contaminant Hydrology·Massimo RollePeter Grathwohl
Dec 18, 2009·Journal of Contaminant Hydrology·Guy E KatzMaarten W Saaltink
Dec 22, 2009·Environmental Science & Technology·Gabriele ChiognaMassimo Rolle
Mar 9, 2010·Journal of Contaminant Hydrology·Diogo BolsterJesus Carrera
Jun 22, 2010·Journal of Contaminant Hydrology·Marco DentzBranko Bijeljic
Aug 14, 2010·Environmental Science & Technology·Massimo RollePeter Grathwohl
Sep 3, 2010·Ground Water·Marco BianchiSteven M Gorelick
Sep 24, 2010·Ground Water·Chunmiao ZhengSteven M Gorelick
May 24, 2011·Journal of Contaminant Hydrology·Michael G TrefryKlaus Regenauer-Lieb
May 27, 2011·Journal of Contaminant Hydrology·Richard T AmosJulie D Kirshtein
Aug 13, 2011·Ground Water·E A Sudicky, W A Illman
Nov 26, 2011·Journal of Contaminant Hydrology·Ehsan RasaDouglas M Mackay
Jun 12, 2012·Environmental Science & Technology·Boris M Van Breukelen, Massimo Rolle
Jul 13, 2012·Journal of Contaminant Hydrology·Stéphanie Loyaux-LawniczakPhilippe Ackerer
Jul 17, 2012·Journal of Contaminant Hydrology·Olaf A CirpkaWolfgang Nowak
Nov 20, 2012·Journal of Contaminant Hydrology·David L Hochstetler, Peter K Kitanidis
Apr 16, 2013·Journal of Contaminant Hydrology·Nicholas B EngdahlGraham E Fogg

Citations

Feb 2, 2015·Journal of Contaminant Hydrology·Dominik HöyngFernando Mazo D'Affonseca
Nov 21, 2015·Physical Review Letters·Yu YeMassimo Rolle
Dec 15, 2016·Physical Review. E·Eleonora CrevacoreDaniele L Marchisio
Dec 18, 2013·Ground Water·Christina M HabererPeter Grathwohl

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