Critical analysis of constitutive functions for hindered settling velocity in 1-D settler models
(2015) 9th IWA Symposium on Systems Analysis and Integrated Assessment (Watermatex)- Abstract
- Advanced 1-D models for secondary clarifiers aim to incorporate more realism by explicitly accounting for several phenomena that influence the settling process. For each of them a valid mathematical expression needs to be selected to obtain a calibrated model that can be used for operation and control. The presented work evaluates different available expressions for hindered
settling based on long term batch settling data. The analysis shows that the exponential forms which are most commonly used in traditional SST models not only account for hindered settling but partly lump other phenomena as well. This makes them unsuitable for advanced 1-D models that explicitly
include each phenomenon in a modular way. A power-law function is... (More) - Advanced 1-D models for secondary clarifiers aim to incorporate more realism by explicitly accounting for several phenomena that influence the settling process. For each of them a valid mathematical expression needs to be selected to obtain a calibrated model that can be used for operation and control. The presented work evaluates different available expressions for hindered
settling based on long term batch settling data. The analysis shows that the exponential forms which are most commonly used in traditional SST models not only account for hindered settling but partly lump other phenomena as well. This makes them unsuitable for advanced 1-D models that explicitly
include each phenomenon in a modular way. A power-law function is shown to be more appropriate to describe the hindered settling velocity. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/732780b7-b28b-442c-bfbb-ace0274cf2ad
- author
- Torfs, Elena ; Balemans, Sophie ; Locatelli, Florent ; Laurant, Julien ; Francois, Pierre ; Burger, Raimund ; Diehl, Stefan LU and Nopens, Ingmar
- organization
- publishing date
- 2015
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- Secondary clarifier, calibration, compression settling
- host publication
- 9th IWA Symposium on Systems Analysis and Integrated Assessment (Watermatex)
- pages
- 5 pages
- conference name
- 9th IWA Symposium on Systems Analysis and Integrated Assessment (Watermatex)
- conference location
- Gold Coast, Australia
- conference dates
- 2015-06-14 - 2015-06-17
- language
- English
- LU publication?
- yes
- id
- 732780b7-b28b-442c-bfbb-ace0274cf2ad
- alternative location
- http://www.awmc.uq.edu.au/filething/get/4750/5-1_Torfs_%20WTMTX15.pdf
- date added to LUP
- 2019-06-13 11:34:18
- date last changed
- 2019-07-11 00:59:54
@inproceedings{732780b7-b28b-442c-bfbb-ace0274cf2ad, abstract = {{Advanced 1-D models for secondary clarifiers aim to incorporate more realism by explicitly accounting for several phenomena that influence the settling process. For each of them a valid mathematical expression needs to be selected to obtain a calibrated model that can be used for operation and control. The presented work evaluates different available expressions for hindered<br/>settling based on long term batch settling data. The analysis shows that the exponential forms which are most commonly used in traditional SST models not only account for hindered settling but partly lump other phenomena as well. This makes them unsuitable for advanced 1-D models that explicitly<br/>include each phenomenon in a modular way. A power-law function is shown to be more appropriate to describe the hindered settling velocity.}}, author = {{Torfs, Elena and Balemans, Sophie and Locatelli, Florent and Laurant, Julien and Francois, Pierre and Burger, Raimund and Diehl, Stefan and Nopens, Ingmar}}, booktitle = {{9th IWA Symposium on Systems Analysis and Integrated Assessment (Watermatex)}}, keywords = {{Secondary clarifier; calibration; compression settling}}, language = {{eng}}, title = {{Critical analysis of constitutive functions for hindered settling velocity in 1-D settler models}}, url = {{http://www.awmc.uq.edu.au/filething/get/4750/5-1_Torfs_%20WTMTX15.pdf}}, year = {{2015}}, }