| Titre : | Graphical analysis of process changes for water minimization (2009) |
| Auteurs : | Xiao Feng, Auteur ; Yang Liu, Auteur ; Long Huang, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 48 N° 15, Août 2009) |
| Article en page(s) : | pp. 7145–7151 |
| Note générale : | Chemical engineering |
| Langues : | Anglais |
| Tags : | 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 |
