Tracer method to determine residence time in a permeable reactive barrier.


A method is presented to evaluate ground water residence time in a zero-valent iron (ZVI) permeable reactive barrier (PRB) using radon-222 ((222)Rn) as a radioactive tracer. Residence time is a useful indicator of PRB hydraulic performance, with application to estimating the volumetric rate of ground water flow through a PRB, identifying flow heterogeneity… (More)
DOI: 10.1111/j.1745-6584.2009.00544.x


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