Landfill Process Modelling Workshop. Modelling flow to leachate wells in landfills
Landfill Process Modelling Workshop. Modelling flow to leachate wells in landfills
Vertical wells are frequently used as a means of controlling leachate levels in landfills. They are often the only available dewatering option for both old landfills without any basal leachate collection layer and for newer sites where the installed drainage infrastructure has failed. When the well is pumped, a seepage face develops at the entry into the well so that the drawdown in the surrounding waste will not be as great as might be expected.
The numerical groundwater flow model MODFLOW-SURFACT, which contains the functionality to model seepage surfaces, has been used to investigate the transient dewatering of a landfill. The study concludes that the position of the seepage face and information about the characteristics of the induced seepage flow field are important and should not be neglected when designing wells in landfills.
271-276
Al-Thani, A.A.
38e57a1d-a8c4-4575-b847-34612ba6716c
Beaven, R.P.
5893d749-f03c-4c55-b9c9-e90f00a32b57
White, J.K.
58e029ac-c8fd-49fc-83b3-6f55f9312434
2004
Al-Thani, A.A.
38e57a1d-a8c4-4575-b847-34612ba6716c
Beaven, R.P.
5893d749-f03c-4c55-b9c9-e90f00a32b57
White, J.K.
58e029ac-c8fd-49fc-83b3-6f55f9312434
Al-Thani, A.A., Beaven, R.P. and White, J.K.
(2004)
Landfill Process Modelling Workshop. Modelling flow to leachate wells in landfills.
[in special issue: Landfill Process Modelling]
Waste Management, 24 (3), .
(doi:10.1016/j.wasman.2003.11.010).
(PMID:15016416)
Abstract
Vertical wells are frequently used as a means of controlling leachate levels in landfills. They are often the only available dewatering option for both old landfills without any basal leachate collection layer and for newer sites where the installed drainage infrastructure has failed. When the well is pumped, a seepage face develops at the entry into the well so that the drawdown in the surrounding waste will not be as great as might be expected.
The numerical groundwater flow model MODFLOW-SURFACT, which contains the functionality to model seepage surfaces, has been used to investigate the transient dewatering of a landfill. The study concludes that the position of the seepage face and information about the characteristics of the induced seepage flow field are important and should not be neglected when designing wells in landfills.
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Published date: 2004
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Local EPrints ID: 39482
URI: http://eprints.soton.ac.uk/id/eprint/39482
ISSN: 0956-053X
PURE UUID: 1a8fba33-a1a4-4a5a-b1db-137b667927f2
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Date deposited: 28 Jun 2006
Last modified: 16 Mar 2024 02:54
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Author:
A.A. Al-Thani
Author:
J.K. White
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