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Graphical analysis of process changes for water minimization / Xiao Feng in Industrial & engineering chemistry research, Vol. 48 N° 15 (Août 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 15 (Août 2009) . - pp. 7145–7151 Titre : Graphical analysis of process changes for water minimization Type de document : texte imprimé Auteurs : Xiao Feng, Auteur ; Yang Liu, Auteur ; Long Huang, Auteur Année de publication : 2009 Article en page(s) : pp. 7145–7151 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Water-using  process  Freshwater  consumption  Wastewater  generation  Inlet/outlet  concentrations Résumé : The effective changes in a water-using process can reduce freshwater consumption and wastewater generation. The main effects of process changes include the increment of limiting inlet/outlet concentrations of water-using processes and the reduction of the contaminant load of those processes. Because the water pinch of a water system is the bottleneck to limit the freshwater consumption, in this paper a water pinch diagram is used to explore the impact of process changes on the pinch point. Process changes which can move the pinch point upward and/or leftward can reduce freshwater consumption in the system. To further save freshwater in a water system, a process change which can increase limiting concentrations should be executed to an across-pinch process, and a process change which can reduce contaminant load should be executed below the pinch. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900094m [article] Graphical analysis of process changes for water minimization [texte imprimé] / Xiao Feng, Auteur ; Yang Liu, Auteur ; Long Huang, Auteur . - 2009 . - pp. 7145–7151. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 15 (Août 2009) . - pp. 7145–7151 Mots-clés : Water-using  process  Freshwater  consumption  Wastewater  generation  Inlet/outlet  concentrations Résumé : The effective changes in a water-using process can reduce freshwater consumption and wastewater generation. The main effects of process changes include the increment of limiting inlet/outlet concentrations of water-using processes and the reduction of the contaminant load of those processes. Because the water pinch of a water system is the bottleneck to limit the freshwater consumption, in this paper a water pinch diagram is used to explore the impact of process changes on the pinch point. Process changes which can move the pinch point upward and/or leftward can reduce freshwater consumption in the system. To further save freshwater in a water system, a process change which can increase limiting concentrations should be executed to an across-pinch process, and a process change which can reduce contaminant load should be executed below the pinch. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900094m