State Water Resources Research Institute Program

Project ID: 2007AK63B
Title: The formation of preferential pathways in permeable reactive barriers in cold climates due to ice formation
Project Type: Research
Start Date: 3/01/2007
End Date: 2/28/2008
Congressional District: AK
Focus Categories: Groundwater, Hydrology, Treatment
Keywords: infiltration ice, permeable reactive barriers, preferential pathways
Principal Investigators: Barnes, David L.; Shur, Yuri
Federal Funds: $ 27,837
Non-Federal Matching Funds: $ 10,650
Abstract: Permeable Reactive Barriers (PRBs) are used in the remediation of contaminated surfaces and ground water. The efficiency of the barriers in cold regions is affected by ice formation in the pore space and the subsequent formation of preferential flow paths. This study will: (1) use state-of-the-art X-Ray Computed Tomography to visualize and quantify preferential pathways within barrier media, (2) identify the conditions necessary for preferential flow to occur, (3) propose measures to mitigate preferential flow and its effects, and (4) develop design recommendations for cold regions PRBs.

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