Retardation of organic contaminants in a fractured chalk formation: Modelling tracer experiments in a single natural fracture

A. Yakirevich; E. Adar; A. Wefer-Roehl

Retardation of organic contaminants in a fractured chalk formation: Modelling tracer experiments in a single natural fracture

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

6 Scopus citations

Abstract

Breakthrough curves for two sorbing (halogenated aromatic compound 2,4,6-tribromophenol and the pesticide ametryn) and one non-sorbing (2,6-difluorobenzoic acid) contaminants obtained in column experiments with two types of fractured chalk (white and gray) were interpreted by mathematical simulations. The model of parallel plates describes transport of solute in a single fracture accounting for the processes of dispersion, diffusion into porous matrix, sorption, and rate-limited mass-transfer through stagnant film near the fracture wall. The unknown parameters: Fracture aperture, mass transfer coefficient, and dispersivity were found by fitting the experimental and the theoretical breakthrough curves of the non-sorbing contaminant. These parameters were then used to simulate transport of the sorbing organic contaminants. A fairly good agreement between the simulated and observed concentrations proves the validity of the model. The analysis of breakthrough curves reveals a stronger retardation of organic contaminants in the gray chalk than in the white chalk.

Original language	English
Title of host publication	Computational methods in water resources - Volume 1 - Computational methods for subsurface flow and transport
Editors	L.R. Bentley, J.F. Sykes, C.A. Brebbia, W.G. Gray, G.F. Pinder, L.R. Bentley, J.F. Sykes, C.A. Brebbia, W.G. Gray, G.F. Pinder
Publisher	A.A. Balkema
Pages	299-306
Number of pages	8
ISBN (Print)	9058091244
State	Published - 1 Jan 2000
Event	Computational Methods in Water Resources XIII - Calgary, Canada Duration: 25 Jun 2000 → 29 Jun 2000

Conference

Conference	Computational Methods in Water Resources XIII
Country/Territory	Canada
City	Calgary
Period	25/06/00 → 29/06/00

ASJC Scopus subject areas

General Earth and Planetary Sciences
General Engineering
General Environmental Science

Cite this

Yakirevich, A., Adar, E., & Wefer-Roehl, A. (2000). Retardation of organic contaminants in a fractured chalk formation: Modelling tracer experiments in a single natural fracture. In L. R. Bentley, J. F. Sykes, C. A. Brebbia, W. G. Gray, G. F. Pinder, L. R. Bentley, J. F. Sykes, C. A. Brebbia, W. G. Gray, & G. F. Pinder (Eds.), Computational methods in water resources - Volume 1 - Computational methods for subsurface flow and transport (pp. 299-306). A.A. Balkema.

Yakirevich, A. ; Adar, E. ; Wefer-Roehl, A. / Retardation of organic contaminants in a fractured chalk formation : Modelling tracer experiments in a single natural fracture. Computational methods in water resources - Volume 1 - Computational methods for subsurface flow and transport. editor / L.R. Bentley ; J.F. Sykes ; C.A. Brebbia ; W.G. Gray ; G.F. Pinder ; L.R. Bentley ; J.F. Sykes ; C.A. Brebbia ; W.G. Gray ; G.F. Pinder. A.A. Balkema, 2000. pp. 299-306

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title = "Retardation of organic contaminants in a fractured chalk formation: Modelling tracer experiments in a single natural fracture",

abstract = "Breakthrough curves for two sorbing (halogenated aromatic compound 2,4,6-tribromophenol and the pesticide ametryn) and one non-sorbing (2,6-difluorobenzoic acid) contaminants obtained in column experiments with two types of fractured chalk (white and gray) were interpreted by mathematical simulations. The model of parallel plates describes transport of solute in a single fracture accounting for the processes of dispersion, diffusion into porous matrix, sorption, and rate-limited mass-transfer through stagnant film near the fracture wall. The unknown parameters: Fracture aperture, mass transfer coefficient, and dispersivity were found by fitting the experimental and the theoretical breakthrough curves of the non-sorbing contaminant. These parameters were then used to simulate transport of the sorbing organic contaminants. A fairly good agreement between the simulated and observed concentrations proves the validity of the model. The analysis of breakthrough curves reveals a stronger retardation of organic contaminants in the gray chalk than in the white chalk.",

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Yakirevich, A , Adar, E & Wefer-Roehl, A 2000, Retardation of organic contaminants in a fractured chalk formation: Modelling tracer experiments in a single natural fracture. in LR Bentley, JF Sykes, CA Brebbia, WG Gray, GF Pinder, LR Bentley, JF Sykes, CA Brebbia, WG Gray & GF Pinder (eds), Computational methods in water resources - Volume 1 - Computational methods for subsurface flow and transport. A.A. Balkema, pp. 299-306, Computational Methods in Water Resources XIII, Calgary, Canada, 25/06/00.

Retardation of organic contaminants in a fractured chalk formation: Modelling tracer experiments in a single natural fracture. / Yakirevich, A.; Adar, E.; Wefer-Roehl, A.
Computational methods in water resources - Volume 1 - Computational methods for subsurface flow and transport. ed. / L.R. Bentley; J.F. Sykes; C.A. Brebbia; W.G. Gray; G.F. Pinder; L.R. Bentley; J.F. Sykes; C.A. Brebbia; W.G. Gray; G.F. Pinder. A.A. Balkema, 2000. p. 299-306.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Retardation of organic contaminants in a fractured chalk formation

T2 - Computational Methods in Water Resources XIII

AU - Yakirevich, A.

AU - Adar, E.

AU - Wefer-Roehl, A.

PY - 2000/1/1

Y1 - 2000/1/1

N2 - Breakthrough curves for two sorbing (halogenated aromatic compound 2,4,6-tribromophenol and the pesticide ametryn) and one non-sorbing (2,6-difluorobenzoic acid) contaminants obtained in column experiments with two types of fractured chalk (white and gray) were interpreted by mathematical simulations. The model of parallel plates describes transport of solute in a single fracture accounting for the processes of dispersion, diffusion into porous matrix, sorption, and rate-limited mass-transfer through stagnant film near the fracture wall. The unknown parameters: Fracture aperture, mass transfer coefficient, and dispersivity were found by fitting the experimental and the theoretical breakthrough curves of the non-sorbing contaminant. These parameters were then used to simulate transport of the sorbing organic contaminants. A fairly good agreement between the simulated and observed concentrations proves the validity of the model. The analysis of breakthrough curves reveals a stronger retardation of organic contaminants in the gray chalk than in the white chalk.

AB - Breakthrough curves for two sorbing (halogenated aromatic compound 2,4,6-tribromophenol and the pesticide ametryn) and one non-sorbing (2,6-difluorobenzoic acid) contaminants obtained in column experiments with two types of fractured chalk (white and gray) were interpreted by mathematical simulations. The model of parallel plates describes transport of solute in a single fracture accounting for the processes of dispersion, diffusion into porous matrix, sorption, and rate-limited mass-transfer through stagnant film near the fracture wall. The unknown parameters: Fracture aperture, mass transfer coefficient, and dispersivity were found by fitting the experimental and the theoretical breakthrough curves of the non-sorbing contaminant. These parameters were then used to simulate transport of the sorbing organic contaminants. A fairly good agreement between the simulated and observed concentrations proves the validity of the model. The analysis of breakthrough curves reveals a stronger retardation of organic contaminants in the gray chalk than in the white chalk.

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M3 - Conference contribution

AN - SCOPUS:0033667482

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SP - 299

EP - 306

BT - Computational methods in water resources - Volume 1 - Computational methods for subsurface flow and transport

A2 - Bentley, L.R.

A2 - Sykes, J.F.

A2 - Brebbia, C.A.

A2 - Gray, W.G.

A2 - Pinder, G.F.

A2 - Bentley, L.R.

A2 - Sykes, J.F.

A2 - Brebbia, C.A.

A2 - Gray, W.G.

A2 - Pinder, G.F.

PB - A.A. Balkema

Y2 - 25 June 2000 through 29 June 2000

ER -

Yakirevich A , Adar E, Wefer-Roehl A. Retardation of organic contaminants in a fractured chalk formation: Modelling tracer experiments in a single natural fracture. In Bentley LR, Sykes JF, Brebbia CA, Gray WG, Pinder GF, Bentley LR, Sykes JF, Brebbia CA, Gray WG, Pinder GF, editors, Computational methods in water resources - Volume 1 - Computational methods for subsurface flow and transport. A.A. Balkema. 2000. p. 299-306

Retardation of organic contaminants in a fractured chalk formation: Modelling tracer experiments in a single natural fracture

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ASJC Scopus subject areas

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