Multi-well capture zones in strip-shaped aquifers

Nagheli, Setareh; Samani, Nozar; Barry, David Andrew

doi:10.1371/journal.pone.0229767

Cited by 4 publications

(2 citation statements)

References 52 publications

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“…Ad ogni buon conto sono noti nella letteratura specialistica numerosi schemi di restituzione dell'acqua sul fronte sopragradiente rispetto a quello di pompaggio (Da Costa e Bennet 1960; Javandel e Tsang 1986; Matott et al 2006;Nagheli et al 2020). Ove sussista un dimensionamento sito-specifico corretto, tali formulazioni predispongono alla messa in opera nel sottosuolo di una sorta di cella idrodinamica attiva, in grado di isolare e controllare la zona critica e di spiazzare al contempo all'esterno del fronte di cattura, salvaguardandole, nuove acque pulite in arrivo da monte idrogeologico.…”

Section: Iwmr -Integrated Water Resource Management (Un-water Sdg6 Public Dialogue Report -Wwwunwaterorg)unclassified

[The renewability of the groundwater resource in clean-up interventions: legal assumptions and technical implications of environmental sustainability]

Sottani¹,

Merlin²,

Cerutti³

2021

AS-ITJGW

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[This Technical Note highlights some legal aspects and technical principles closely related to the concept of ground water renewability, in as far as this concept is considered when designing and implementing environmental clean-up projects and works. After outlining the quantitative importance of groundwater in meeting Italian water demand, some key points of the current regulations are commented on, and some practical guidelines are proposed which could be adopted during remediation of groundwater at contaminated sites, aiming at the protection and qualitative-quantitative restoration of the aquifers as an indication of sustainability]. [In Italian]

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Section: Iwmr -Integrated Water Resource Management (Un-water Sdg6 Public Dialogue Report -Wwwunwaterorg)unclassified

[The renewability of the groundwater resource in clean-up interventions: legal assumptions and technical implications of environmental sustainability]

Sottani¹,

Merlin²,

Cerutti³

2021

AS-ITJGW

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“…Particular P&T systems are currently implemented: [13] demonstrated that pulsed pumping can achieve similar contaminant removal for a given amount of time as continuous pumping while pumping less water; [14] studied a system of pumping wells coupled to injecting wells and demonstrate that the proper configuration of wells, varying the flow rate value many times during the year and collecting corresponding groundwater responses, is equivalent to conducting a large-scale hydraulic tomography survey, with minimal additional costs. Nagheli et al [15] studied, by means of an equation-based particle swarm optimization and genetic algorithm, the optimization of pumping and injecting wells in a multilayer configuration. These innovative improvements were devised to try to overcome the limits shown by the P&T system.…”

Section: Introductionmentioning

confidence: 99%

Analytical and Numerical Methods for a Preliminary Assessment of the Remediation Time of Pump and Treat Systems

Antelmi

Renoldi

Alberti

2020

Water

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Several remediation technologies are currently used to address groundwater pollution. “Pump and treat” (P&T) is probably one of the most widely applied, being a process where contaminated groundwater is extracted from the subsurface by pumping and then treated before it is discharged or reinjected into the aquifer. Despite being a very adaptable technology, groundwater remediation is often achieved in long and unsustainable times because of limitations due to the hydrogeological setting and contaminant properties. Therefore, the cost–benefit analysis over time results in an inefficient system and a preliminary evaluation of the clean-up time is crucial. The aim of the paper is to compare, in an integrated manner, the application of some models to estimate the time to compliance of a P&T system in relation to the specific hydrogeological condition. Analytical solutions are analyzed and applied to an industrial site and to a synthetic case. For both cases, batch flushing and the advection-dispersion-retardation (ADR) model underestimate remediation times comparing the results to real or simulated monitoring data, whereas the Square Root model provided more reliable remediation times. Finally, for the synthetic case, the reliability of analytical approaches and the effects of matrix diffusion are tested on the basis of a numerical groundwater transport model specifically implemented, which confirm the results of the analytical methods and the strong influence of the matrix diffusion on the results.

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Capture zone models of a multi-well system in aquifers bounded with regular and irregular inflow boundaries

Nagheli

Samani

Barry

2020

Journal of Hydrology X

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Multi-well capture zones in strip-shaped aquifers

Abstract: Laboratoire de technologie écologique (ECOL), Institut des sciences et technologies de l'environnement (IIE), Faculté de l'environnement naturel, architectural et construit (ENAC), Ecole polytechnique fé dé rale de Lausanne (EPFL),

Cited by 4 publications

References 52 publications

[The renewability of the groundwater resource in clean-up interventions: legal assumptions and technical implications of environmental sustainability]

[The renewability of the groundwater resource in clean-up interventions: legal assumptions and technical implications of environmental sustainability]

Analytical and Numerical Methods for a Preliminary Assessment of the Remediation Time of Pump and Treat Systems

Capture zone models of a multi-well system in aquifers bounded with regular and irregular inflow boundaries

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