Article (Scientific journals)
PEGASE, an integrated river/basin model dedicated to surface water quality assessment: application to cocaine
Deliège, Jean-François; Everbecq, Etienne; Magermans, Pol et al.
2010In Acta Clinica Belgica, 65 (Supplement 1), p. 42-48
 

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Keywords :
Modeling; River quality; Cocaine; Micropollutants; modélisation; qualité des rivières; cocaïne; micropolluants
Abstract :
[en] The Aquapôle of the University of Liège has been involved in environmental modeling for more than 20 years. Among other, its current R&D unit focuses on the compartment of surface water, and – for modeling processes – is specialized on the water quality. One of its environmental models, called Pegase (Planification Et Gestion de l’ASsainissement des Eaux), French acronym for “Planning and management of water purification” is devoted to the modeling of the environmental state of surface water, at different scales from small watersheds (10 km²) and basins up to entire transnational Districts (more than 100.000 km²). The software is used operationally by several administrations (Agencies and Ministries) mainly through Europe (France and Benelux, Germany ...), and several calculations have also been performed at international District levels for international commissions (Scheldt, Meuse, Moselle ...) Recently, the Pegase model has been adapted to describe the cocaine’s behavior (using a stable metabolite of the cocaine in the environment: the benzoylecgonine) in waste water, waste water treatment plants (WWTP) and surface water. The cocaine is newly described in the model as an additional micropollutant (Pegase already treats numerous heavy metals), thanks to the implementation of new state variable equations and their specific parameterizations. At a first stage, only the urban sources (releases associated to the consumption by inhabitants) were considered as the industrial releases and the soil loads are assumed to be negligible. Simulations of benzoylecgonine have been done in the Walloon and Flemish regions, where many measurements from the COWAT project were available. These first results are showing a good agreement between calculated and measured values. This ability of the model to simulate the fate of the cocaine derivatives in surface waters should be continued and extended to other metabolites.
Research center :
Aquapôle - AQUAPOLE
FOCUS - Freshwater and OCeanic science Unit of reSearch - ULiège
PeGIRE - Planification et Gestion Intégrée des Ressources en Eaux
Disciplines :
Environmental sciences & ecology
Author, co-author :
Deliège, Jean-François  ;  Université de Liège - ULiège > Aquapôle
Everbecq, Etienne ;  Université de Liège - ULiège > Aquapôle
Magermans, Pol  ;  Université de Liège - ULiège > Aquapôle
Grard, Aline ;  Université de Liège - ULiège > Aquapôle
Bourouag, Mohamed ;  Université de Liège - ULiège > Aquapôle
Blockx, Caroline ;  Université de Liège - ULiège > Aquapôle
Language :
English
Title :
PEGASE, an integrated river/basin model dedicated to surface water quality assessment: application to cocaine
Publication date :
March 2010
Journal title :
Acta Clinica Belgica
ISSN :
0001-5512
Publisher :
University Hospital Gent, Gent, Belgium
Special issue title :
4èmes journées internationales de toxicologie (Liège, 14-15 octobre 2009)
Volume :
65
Issue :
Supplement 1
Pages :
42-48
Available on ORBi :
since 19 April 2010

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