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Water Science & Technology Vol 65 No 11 pp 1929–1938 © IWA Publishing 2012 doi:10.2166/wst.2012.083 Water network cost optimization in a paper mill based on a new library of mathematical modelsI. Lizarralde, F. Claeys, R. Ordóñez, M. de Gracia, L. Sancho and P. GrauDepartment of Environmental Engineering, CEIT, Paseo Manuel Lardizábal 15, 20018 Donostia, Spain E-mail: ilizarralde@ceit.esDHI, Doorniksestraat 21-23, B-8500 Kortrijk, Belgium Department of Chemical Engineering, Faculty of Chemistry, University Complutense of Madrid, Av. Complutense s/n. Madrid 28040, Spain ATM (Grupo Praxair), Epele Bailara, 29, 20120 Hernani, Spain ABSTRACT The increasing costs associated with water supply and the disposal of wastewater has stimulated industries to seek more efficient water management systems. Mathematical modelling and simulation can be a very valuable tool for the study of the multiple alternatives available whilst assessing optimum solutions for water management in industry. This study introduces a new steady state model library able to reproduce industrial water circuits. It has been implemented in a novel software framework for the representation, simulation and optimization of industrial water networks. A water circuit representing a paper mill has been modelled and simulated showing the capability to reproduce real case studies. Alternative scenarios for the water network have also been tested to assess the capability of the models to optimize water circuits minimizing total cost. Keywords: mathematical modelling; paper industry; water reuse eProduct: Buy this article for £24.00 (IWA MEMBER PRICE: £18.00) All prices include VAT. For customers where VAT should not be applied, the VAT amount will be removed upon payment |
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