Concentration-driven models revisited : towards a unified framework to model settling tanks in water resource recovery facilities

A new perspective on the modelling of settling behaviour in water resource recovery facilities is introduced. The ultimate goal is to describe in a unified way the processes taking place both in primary settling tanks (PSTs) and secondary settling tanks (SSTs) for a more detailed operation and contr...

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Veröffentlicht in:Water science and technology : a journal of the International Association on Water Pollution Research. - 1986. - 75(2017), 3-4 vom: 17. Feb., Seite 539-551
1. Verfasser: Torfs, Elena (VerfasserIn)
Weitere Verfasser: Martí, M Carmen, Locatelli, Florent, Balemans, Sophie, Bürger, Raimund, Diehl, Stefan, Laurent, Julien, Vanrolleghem, Peter A, François, Pierre, Nopens, Ingmar
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2017
Zugriff auf das übergeordnete Werk:Water science and technology : a journal of the International Association on Water Pollution Research
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Sewage Suspensions
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520 |a A new perspective on the modelling of settling behaviour in water resource recovery facilities is introduced. The ultimate goal is to describe in a unified way the processes taking place both in primary settling tanks (PSTs) and secondary settling tanks (SSTs) for a more detailed operation and control. First, experimental evidence is provided, pointing out distributed particle properties (such as size, shape, density, porosity, and flocculation state) as an important common source of distributed settling behaviour in different settling unit processes and throughout different settling regimes (discrete, hindered and compression settling). Subsequently, a unified model framework that considers several particle classes is proposed in order to describe distributions in settling behaviour as well as the effect of variations in particle properties on the settling process. The result is a set of partial differential equations (PDEs) that are valid from dilute concentrations, where they correspond to discrete settling, to concentrated suspensions, where they correspond to compression settling. Consequently, these PDEs model both PSTs and SSTs 
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650 4 |a Research Support, Non-U.S. Gov't 
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700 1 |a Martí, M Carmen  |e verfasserin  |4 aut 
700 1 |a Locatelli, Florent  |e verfasserin  |4 aut 
700 1 |a Balemans, Sophie  |e verfasserin  |4 aut 
700 1 |a Bürger, Raimund  |e verfasserin  |4 aut 
700 1 |a Diehl, Stefan  |e verfasserin  |4 aut 
700 1 |a Laurent, Julien  |e verfasserin  |4 aut 
700 1 |a Vanrolleghem, Peter A  |e verfasserin  |4 aut 
700 1 |a François, Pierre  |e verfasserin  |4 aut 
700 1 |a Nopens, Ingmar  |e verfasserin  |4 aut 
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