collective wastewater treatment facilities; exploitation cost; investment cost; Walloon Region
Abstract :
[en] This paper contributes to a better understanding of costs for collective wastewater treatment in
the Walloon Region (Belgium). Based on a large set of data, unit costs to population equivalents
are modelled. Considering investment as well as exploitation costs, the model includes not only
wastewater treatment plants but also collector and sewage networks in an integrated approach
at the technical basin level. Beyond this modelling, each type of process is analyzed
independently in order to explore the structure of investment costs and their variation factors.
Then, the model was used to forecast the upcoming expenses for 36 areas which are not yet
equipped with collective wastewater treatment facilities. In light of these results, strategic
choices for decision makers are discussed.
Disciplines :
Agriculture & agronomy
Author, co-author :
Dogot, Thomas ; Université de Liège - ULiège > Sciences agronomiques > Economie et développement rural
Xanthoulis, Yanni
Fonder, Nathalie
Xanthoulis, Dimitri ; Université de Liège - ULiège > Sciences et technologie de l'environnement > Hydrologie et hydraulique agricole
Language :
English
Title :
Estimating the costs of collective treatment of wastewater: the case of Walloon Region (Belgium)
Alternative titles :
[en] Estimation des coûts de l'épuration collective
AEAP 1993 Stations d'épuration urbaines: première approche des coûts d'investissement. Agence de l'eau Artois Picardie. p. 19.
Agence de l'eau 1994 Approche technico-économique des coûts d'investissement des stations d'épuration. Etude inter-agences no 40. France. pp. 48. ISSN 1161.0425.
Alexandre, O., Boutin, C., Duchène, P., Lagrange, C., Lakel, A., Liénard, A. & Orditz, D. 1998 Filières d'épuration adaptées aux petites collectivités. Ministère de l'agriculture et de la pêche. FNDAE no 22, Cemagref, CSTB, 96, 13-20.
Berktay, A. & Ellis, K. V. 1997 Comparison of the cost of the pressurized wastewater treatment process with other established treatment processes. Water Res. 31(12), 2973-2978.
Coulon, D., Peeters H. & Kleykens D. 2007 Convention de prestation de service d'assistance technique et scientifique relative aux ouvrages d'épuration et de collecte. Rapport final: 1ère partie-Identification des coûts unitaires d'investissement. Centre Belge d'Etude & de Documentation de l'Eau (CEBEDEAU), Société Publique de la Gestion de l'Eau (SPGE), 123.
European Commission 2007 Terms and definitions of the Urban Waste water Treatment Directive (91/271/CEE). Bruxelles: s.n.
Flores, X., Comas, J., Roda, I. R., Jimenez, L. & Gernaey, K. V. 2007a Application of multivariable statistical techniques in plant-wide WWTP control strategies analysis. Water Sci. Technol. 56(6), 75-83.
Flores, X., Bonmati, A., Poch, M., Roda, I. R., Jimenez, L. & Banares, R. 2007b Multicriteria evaluation tools to support the conceptual design of activated sludge systems. Water Sci. Technol. 56(6), 85-94.
Flores, X., Roda, I. R., Sin, G. & Gernaey, K. V. 2008 Multi-criteria evaluation of wastewater treatment plant control strategies under uncertainty. Water Res. 42, 4485-4497.
Gaudriot 1993 Analyse comparative des techniques et des coûts d'investissement des stations d'épuration Nord européennes. Rapport d'étude. Cabinet d'étude, AERM. p. 48.
Gratziou, M., Ekonomou, S. & Tsalkatidou, M. 2005 Cost analysis and evaluation of urban sewage processing units. Water Sci. Technol. Water Supply 5(6), 155-162.
Hernandez, F. & Sala, R. 2005 Technical efficiency in wastewater plants: evidence from a Spanish case study In: Tsagarakis, K. P. (ed.). IWA International Conference on Water Economics, Statistics and Finance. IWA Conference 8-10 July 2005. Preprint Book 1. Greece. pp. 137-143. ISBN 960-88711-0-7.
Leffel, R. E. et al. 1977 Wastewater treatment facilities for sewered small communities. Process design manual. US Environmental Protection Agency. Technology transfer. EPA-625/1-77-009.
Richard, D. 1998 The cost of wastewater reclamation and reuse. In: Takashi, A. (ed.) Wastewater reclamation and reuse. Water quality management library Vol. 10. Technomic publication, Pennsylvania USA, pp. 1395-1396. ISBN 1-56676-620-6.
Vanrolleghem, P. A., Jeppson, U., Carstensen, J., Carlsson, B. & Olsson, G. 1996 Integration of wastewater treatment plant design and operation-a systematic approach using cost functions. Water Sci. Technol. 34(3-4), 159-171.
