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

Courcelles, Benoît

doi:10.11159/ijepr.2015.003

Cited by 7 publications

(7 citation statements)

References 16 publications

(17 reference statements)

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“…Permeable reactive barriers (PRBs) as an effective remediation technology for polluted groundwater were introduced in the 1980s (McMurty and Elton 1985). Upon careful design and installation, PRBs remediate groundwater polluted with diverse contaminants, including chlorinated hydrocarbons, nutrients, and trace metals (Bigg and Judd 2000;Blowes et al 2000;Thiruvenkatachari et al 2008;Obiri-Nyarko et al 2014;Courcelles 2015). Metallic iron (Fe 0 ) has been tested the most as a filling material for PRBs (Warner 2015;Gheju 2018).…”

Section: Metallic Iron For Environmental Remediationmentioning

confidence: 99%

Realizing the potential of metallic iron for the mitigation of toxics: flee or adapt?

Konadu-Amoah

Cao

et al. 2022

Appl Water Sci

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Metallic iron (Fe0) has been increasingly used to remove toxics from water over the past three decades. However, the idea that metallic iron (Fe0) is not an environmental reducing agent has been vigorously refuted. Researchers presenting their findings in a scientific journal have to accept the burden of proving that their argument has any validity. This 30-year-lasting discussion within the Fe0 remediation community is alien to electro-chemists, as it is a century-old knowledge. Nevertheless, the peer-reviewed literature on “remediation using Fe0” seems to be dominated by evaluators thinking that Fe0 is a reducing agent. This communication challenges the view that Fe0 donates any electron to any dissolved species. The sole goal is to reconcile a proven efficient technology with its scientific roots and enable the design of better Fe0 remediation systems.

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Section: Metallic Iron For Environmental Remediationmentioning

confidence: 99%

Realizing the potential of metallic iron for the mitigation of toxics: flee or adapt?

Konadu-Amoah

Cao

et al. 2022

Appl Water Sci

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“…It is an innovative remediation technique [ 47 ]. Practically, it is in situ technology to remediate groundwater using reactive media designed to intercept a contaminated plume.…”

Section: Groundwater Treatment Technologiesmentioning

confidence: 99%

“…Additionally, there must be a radial centripetal flow by applying a hydraulic gradient. The third type of PRB has a long lifespan and a better treatment efficiency by extending the contact time between the pollutant and the reactive barrier [ 47 , 53 , 54 ].…”

Section: Groundwater Treatment Technologiesmentioning

confidence: 99%

A Comprehensive Review for Groundwater Contamination and Remediation: Occurrence, Migration and Adsorption Modelling

et al. 2021

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The provision of safe water for people is a human right; historically, a major number of people depend on groundwater as a source of water for their needs, such as agricultural, industrial or human activities. Water resources have recently been affected by organic and/or inorganic contaminants as a result of population growth and increased anthropogenic activity, soil leaching and pollution. Water resource remediation has become a serious environmental concern, since it has a direct impact on many aspects of people’s lives. For decades, the pump-and-treat method has been considered the predominant treatment process for the remediation of contaminated groundwater with organic and inorganic contaminants. On the other side, this technique missed sustainability and the new concept of using renewable energy. Permeable reactive barriers (PRBs) have been implemented as an alternative to conventional pump-and-treat systems for remediating polluted groundwater because of their effectiveness and ease of implementation. In this paper, a review of the importance of groundwater, contamination and biological, physical as well as chemical remediation techniques have been discussed. In this review, the principles of the permeable reactive barrier’s use as a remediation technique have been introduced along with commonly used reactive materials and the recent applications of the permeable reactive barrier in the remediation of different contaminants, such as heavy metals, chlorinated solvents and pesticides. This paper also discusses the characteristics of reactive media and contaminants’ uptake mechanisms. Finally, remediation isotherms, the breakthrough curves and kinetic sorption models are also being presented. It has been found that groundwater could be contaminated by different pollutants and must be remediated to fit human, agricultural and industrial needs. The PRB technique is an efficient treatment process that is an inexpensive alternative for the pump-and-treat procedure and represents a promising technique to treat groundwater pollution.

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“…Groundwater models have been used in most PRB installations to determine the approximate location of the reactive wall with respect to the contaminant plume movement (Courcelles, 2015;Garon, Schultz, & Landis, 1998;Gupta & Fox, 1999;Kimmel et al, 2003;Painter, 2004;Scott & Folkes, 2000). Models are usually set up after laboratory tests have estimated the contaminant degradation rates and the residence time requirements depending on the selected reactive materials (Gavaskar et al, 2000;Gupta & Fox, 1999).…”

Section: Introductionmentioning

confidence: 99%

“…Several computer codes are available to evaluate groundwater flow through PRBs, including (among others): MODFLOW (McDonald & Harbaugh, 1988), FLONET/TRANS (Guiguer, Molson, Frind, & Franz, 1991), GMS (EMRL, 2000), FEFLOW (Diersch, 2002). MODFLOW is a well-known and commonly used code in PRBs applications (Courcelles, 2015;Elder, 2002;Harte, Konikow, & Hornberger, 2006;Kimmel et al, 2003;Lin, Benson, & Lawson, 2005;Painter, 2004). It uses a finite difference method to represent the hydrogeological properties in the model domain (Guiguer & Franz, 1996).…”

Section: Introductionmentioning

confidence: 99%

Designing a permeable reactive barrier to treat TCE contaminated groundwater: Numerical modelling

Grajales-Mesa

Malina²,

Kret³

et al. 2020

Tecnol. cienc. agua

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A 3-D groundwater numerical model was developed with the software Visual MODFLOW, to design a PRB with brown coal and compost as reactive materials to treat contaminated groundwater with trichloroethene (TCE) in the vicinity of Nowa Dęba waterworks (South-East Poland). The results of the analysis allowed the evaluation of the flow changes due to the installation of diverse PRB systems (continuous wall, 2020, Instituto Mexicano de Tecnología del Agua Open Access bajo la licencia CC BY-NC-SA 4.0

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

Cited by 7 publications

References 16 publications

Realizing the potential of metallic iron for the mitigation of toxics: flee or adapt?

Realizing the potential of metallic iron for the mitigation of toxics: flee or adapt?

A Comprehensive Review for Groundwater Contamination and Remediation: Occurrence, Migration and Adsorption Modelling

Designing a permeable reactive barrier to treat TCE contaminated groundwater: Numerical modelling

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