Analytical solutions of one-dimensional multispecies reactive transport in a permeable reactive barrier-aquifer system

Journal of Contaminant Hydrology
John Mieles, Hongbin Zhan

Abstract

The permeable reactive barrier (PRB) remediation technology has proven to be more cost-effective than conventional pump-and-treat systems, and has demonstrated the ability to rapidly reduce the concentrations of specific chemicals of concern (COCs) by up to several orders of magnitude in some scenarios. This study derives new steady-state analytical solutions to multispecies reactive transport in a PRB-aquifer (dual domain) system. The advantage of the dual domain model is that it can account for the potential existence of natural degradation in the aquifer, when designing the required PRB thickness. The study focuses primarily on the steady-state analytical solutions of the tetrachloroethene (PCE) serial degradation pathway and secondly on the analytical solutions of the parallel degradation pathway. The solutions in this study can also be applied to other types of dual domain systems with distinct flow and transport properties. The steady-state analytical solutions are shown to be accurate and the numerical program RT3D is selected for comparison. The results of this study are novel in that the solutions provide improved modeling flexibility including: 1) every species can have unique first-order reaction rates and unique ret...Continue Reading

References

Oct 16, 1999·Journal of Hazardous Materials·N Gupta, T C Fox
Apr 22, 2008·Journal of Contaminant Hydrology·Harald Klammler, Kirk Hatfield
May 30, 2009·Journal of Contaminant Hydrology·Hongbin ZhanDongmin Sun
Nov 1, 1994·Environmental Science & Technology·L J Matheson, P G Tratnyek

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Citations

Nov 17, 2012·Journal of Contaminant Hydrology·Edward A SudickyPeter Huyakorn

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