title: Funnel-and-gate remediation systems augmented with passive filter wells.
abstract: The objective of this study was to evaluate the ability of funnel-and-gate structures augmented with passive wells containing filter cartridges to capture contaminated groundwater in hypothetical, homogeneous and heterogeneous, unconfined aquifers. Perpendicular to groundwater flow, linear structures were 15 m wide, 1 m thick, and keyed into the base of the aquifer. Gates occupied 4 m of the total width of each simulated structure; one gate was 5 m from a contaminant plume's leading tip, while others occupied cross-gradient margins of the plume. Results suggest a modest reduction in remediation timeframes, up to 425 d per well added in these simulations; however, incremental benefits are highly variable and case specific.
authors.affiliation: Department of Geography and Environmental Science Program, University of North Texas, Denton, Texas 76203-5279, USA. hudak@unt.edu
authors.forename: Paul F
authors.initials: PF
authors.lastname: Hudak
mesh_terms: D052918:Environmental Restoration and Remediation / Q000295:instrumentation / Q000379:methods*; D005374:Filtration / Q000295:instrumentation; D014876:Water Pollution; D018508:Water Purification / Q000295:instrumentation / Q000379:methods*