Considerations for Monitoring Permeable Ground-Water Treatment Walls

Warner, Scott D.; Yamane, C.L.; Gallinatti, John D.; Hankins, D.A.

doi:10.1061/(asce)0733-9372(1998)124:6(524)

Cited by 12 publications

(3 citation statements)

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“…The 1994 installation of the world's first commercial permeable reactive barrier (PRB) composed of zero valent iron (ZVI) is a case in point where recognized future performance uncertainty was a key consideration for completing the design of this innovative in situ groundwater remediation technology (Warner, 2015; Warner et al, 1998). At the time, the quantifiable cost–benefit analysis focused chiefly on the value of replacing an operationally expensive ex situ approach consisting of a conventional “pump and treat” remedy with a novel passive in situ approach that required a substantial capital expenditure.…”

Section: Introduction: the Anthrohydrologic Cycle Climate Change And ...mentioning

confidence: 99%

Climate‐influenced hydrobiogeochemistry and groundwater remedy design: A review

Warner

Bekele

Nathanail

et al. 2023

Remediation Journal

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The process of designing a remedy for contaminated groundwater historically has not commonly included climate‐future, hydrologic, and biogeochemical aquifer characteristics. From experience, the remedy design process also has not consistently nor directly integrated or projected future hydrologic and biogeochemical effects of the human‐induced or developed environment—aka the anthropogenic influence—on potential remedy performance. The apparent practice of (1) not regularly assessing anthro‐influenced hydrological (termed here as anthrohydrology) or biogeochemical characteristics (collectively hydrobiogeochemistry) of a site and (2) rarely accounting for future climatic shifts as design factors in remedy design may be due, in part, to the general practice‐level view that groundwater remediation systems (whether in situ or ex situ) have seldom been anticipated to last more than a few years (or one or two decades at the most). Second, methods to reliably and quantitatively estimate site‐specific, climate‐future shifts in groundwater conditions using global and/or regional climate models and the resultant impacts on contaminant plume characteristics have not been readily available. The authors here suggest that while the concept of remedy design resilience and durability, within an envelope of climate change and anthropogenic influence, has been discussed in some technical circles as a component of “sustainable remediation,” we have found that direct application of these technical concepts in quantifiable terms remains rare. By incorporating the potential influence of future hydrobiogeochemical scenarios into remedy design, however, the design process could account for reasonable climate‐induced influence on the groundwater system for a given site. These scenarios could then be applied within the remedy selection process to assess performance durability under potentially changing hydrologic, biological, and chemical conditions.

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Section: Introduction: the Anthrohydrologic Cycle Climate Change And ...mentioning

confidence: 99%

Climate‐influenced hydrobiogeochemistry and groundwater remedy design: A review

Warner

Bekele

Nathanail

et al. 2023

Remediation Journal

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“…Three main geometric configurations are available in the literature: (a) a continuous wall (CW) composed of reactive trenches or injection wells [1]; (b) a funnel-and-gate configuration (F&G) composed of two impermeable walls that direct the contaminated plume towards a filtering gate [2]; and (c) a caisson configuration (CC) similar to the previous one, but in which the flow in the filtering gate is in the upward direction [3].…”

Section: Introductionmentioning

confidence: 99%

Guidelines for Preliminary Design of Funnel-and-Gate Reactive Barriers

Courcelles¹

2015

IJEPR

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Permeable Reactive Barriers represent an innovative remediation technique of contaminated aquifers. Three geometric configurations are encountered in the literature: a continuous wall, a funnel-and-gate system, and a caisson configuration. The present paper is focused on the design of the second and third geometric configurations and presents an analytical solution of the flow in a Permeable Reactive Barrier based on the Schwarz-Christoffel transformation. This analytical solution is coupled to residence time calculations to define a methodology of design taking into account the most important parameters on the design of a PRB: cutoff width, slenderness of the reactive cell, and hydraulic conductivity. Finally, the study provides a guidance diagram for the design of funnel-and-gate or caisson configurations, as well as a case study.

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“…A great deal of research has investigated the long-term performance of in situ barriers, with emphasis on understanding how groundwater composition, precipitation of mineral phases, passivation, and microbial activity can influence reactivity (42,46,58,79,84,94,98,108,113,114,115,132,134). A better understanding of the mechanism through which zero-valent metals reduce organohalides will aid in the design ofmore effective systems for in situ treatment of contaminated groundwater.…”

Section: Discussionmentioning

confidence: 99%

Abiotic Dehalogenation by Metals

Totten

Assaf-Anid

Dehalogenation

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Considerations for Monitoring Permeable Ground-Water Treatment Walls

Cited by 12 publications

References 9 publications

Climate‐influenced hydrobiogeochemistry and groundwater remedy design: A review

Climate‐influenced hydrobiogeochemistry and groundwater remedy design: A review

Guidelines for Preliminary Design of Funnel-and-Gate Reactive Barriers

Abiotic Dehalogenation by Metals

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