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Reactive transport modelling of a groundwater contamination by ammoniacal liquor
Haerens, Bruno; Prommer, Henning; Lerner, David N. et al.
2006
 

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Keywords :
reactive transport modelling; groundwater contamination; groundwater remediation; natural attenuation; ammoniacal liquor
Abstract :
[en] A reactive transport modeling study was carried out to assess the fate of a groundwater contamination by ammoniacal liquor from a former coking plant and the associated geochemical response. The simulations over a 45-year period provide a conclusive explanation and quantitative description of all measured data from observation wells down gradient of the contaminant source. It is shown that cation exchange exerts the main control on the fate of the ammonium plume as it strongly retards the migration of dissolved ammonium. The sorption of ammonium is accompanied by the elution of native cations, an effect that can be seen in some observation wells where ammonium is absent. While phenol has not been detected in the observation wells in recent years, the modeling results suggest that it has completely degraded in the aquifer, which is inferred from the agreement between the simulated and the observed geochemical fingerprint that the degradation of phenol imposes on groundwater composition.
Research center :
Aquapôle - ULiège
Disciplines :
Geological, petroleum & mining engineering
Author, co-author :
Haerens, Bruno;  URS Belgium
Prommer, Henning;  CSIRO, Australia > Land and Water
Lerner, David N.;  University of Sheffield > Groundwater Protection and Restoration Group
Dassargues, Alain  ;  Université de Liège - ULiège > Département Argenco : Secteur GEO3 > Hydrogéologie & Géologie de l'environnement
Language :
English
Title :
Reactive transport modelling of a groundwater contamination by ammoniacal liquor
Publication date :
2006
Event name :
MODFLOW and More 2006
Audience :
International
Available on ORBi :
since 03 January 2009

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