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Containment of Sources of Groundwater Contamination: Analysis of Mass Fluxes
Author(s) -
Neville Christopher J.,
Andrews Charles B.
Publication year - 2019
Publication title -
groundwater
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.84
H-Index - 94
eISSN - 1745-6584
pISSN - 0017-467X
DOI - 10.1111/gwat.12912
Subject(s) - mass flux , flux (metallurgy) , containment (computer programming) , groundwater , environmental science , contamination , hazardous waste , term (time) , groundwater contamination , mass transport , mechanics , physics , chemistry , geotechnical engineering , waste management , geology , engineering , aquifer , biochemical engineering , ecology , organic chemistry , quantum mechanics , computer science , biology , programming language
Cutoff walls and liners are used frequently as barriers to isolate contaminants at both controlled and uncontrolled hazardous waste sites. Neville and Andrews (2006) presented a containment criterion for contaminant isolation by a barrier. The analysis of Neville and Andrews (2006) yields the inward Darcy flux that balances the diffusive mass flux from the source so that the net mass flux is zero. A requirement of zero net mass flux may not be achievable in all situations. The analysis developed by Neville and Andrews (2006) is extended to develop straightforward expressions for the long‐term mass fluxes across a barrier for any conditions. In cases where it may not be possible to satisfy a criterion of zero net mass flux, the results from an exact solution for transient solute transport are used to show how the mass fluxes evolve to their long‐term values.