Evaluation of Pore scale porous media effects on reactive transport in groundwater
EMSL Project ID
17994
Abstract
We request use of the EMSL Subsurface Flow and Transport Laboratory?s syringe pumps and work space in order for Thomas Willingham to complete the experimental phase of his Doctoral Research evaluating the effects of porous media structure on reactive transport in groundwater. Currently he has completed fabrication and testing of several micro-model designs that elucidate the effects of porous media structure on reactive transport in groundwater. The final phase of testing requires perfectly uniform fluid flow from two parallel injection streams. This can only be accomplished with non-stepper motor driven syringe pumps such as the ISCO syringe pumps available at EMSL. The primary objective of Thomas?s doctoral research is to elucidate the effects of grain structure ? grain size, angularity, grain shape, grain orientation, porosity ? on transverse dispersion and reactive transport in ground water. Transverse dispersion has been shown to be the controlling mechanisms for degradation of hazardous chemicals in groundwater (Ham et al., 2004; Cirpka et al., 1999), for dilution of contaminant concentrations from landfills or other continuous sources (Guven and Hayworth, 1990), and for controlling plume lengths of reactive substrates (Grathwohl et al., 2000).
Project Details
Project type
Exploratory Research
Start Date
2006-02-17
End Date
2007-06-01
Status
Closed
Released Data Link
Team
Principal Investigator
Team Members
Related Publications
Botto, J., S.J. Fuchs, B.W. Fouke, A.F. Clarens, J.T. Freiburg, P.M. Berger, C.J. Werth, Effects of mineral surface properties on supercritical CO2 wettability in a siliciclastic reservoir, ACS Energy Fuels, , 31(5), 5275-5285, 2017.
Boyd V, H Yoon, C Zhang, M Oostrom, NJ Hess, BW Fouke, AJ Valocchi, and CJ Werth. 2014. "Influence of Mg2+ on CaCO3 precipitation during subsurface reactive transport in a homogeneous silicon-etched pore network." Geochimica et Cosmochimica Acta 135:321-335. doi:10.1016/j.gca.2014.03.018
Willingham TW, CJ Werth, and AJ Valocchi. 2008. "Evaluation of the Effects of Porous Media Structure on Mixing-Controlled Reactions Using Pore-Scale Modeling and Micromodel Experiments." Environmental Science & Technology 42(9):3185–3193. doi:10.1021/es7022835