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Concentration-driven models revisited: Towards a unified framework to model settling tanks in WWTPs

Torfs, Elena ; Locatelli, Florent ; Balemans, Sophie ; Laurant, Julien ; Vanrolleghem, P.A. ; Bürger, Raimund ; Diehl, Stefan LU ; François, Pierre ; Mosse, Robert and Nopens, Ingmar (2016) 5th IWA/WEF Wastewater Treatment Modelling Seminar (WWTmod2016) p.109-118
Abstract
This contribution introduces a new perspective on the modelling of settling behaviour aimed at providing a unified description of the processes taking place both in primary and secondary settling tanks for a more
detailed operation and control in Water and Resource Recovery Facilities (WRRFs). First, experimental evidence is provided pointing out the
flocculation state of sludge as an important common source of distributed behavior in different settling processes. Subsequently, a unified model framework considering several particle classes is proposed in order to describe this distributed settling behaviour as well as the effect of variations in flocculation state on ... (More)
This contribution introduces a new perspective on the modelling of settling behaviour aimed at providing a unified description of the processes taking place both in primary and secondary settling tanks for a more
detailed operation and control in Water and Resource Recovery Facilities (WRRFs). First, experimental evidence is provided pointing out the
flocculation state of sludge as an important common source of distributed behavior in different settling processes. Subsequently, a unified model framework considering several particle classes is proposed in order to describe this distributed settling behaviour as well as the effect of variations in flocculation state on the settling process. The result is a set of
PDEs that are valid from dilute concentrations where they correspond to discrete settling to concentrated suspensions where they correspond to compression settling and can thus be used to model both primary and secondary settling tanks. (Less)
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author
; ; ; ; ; ; ; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
primary clarifier, secondary clarifier, clarification, compression, particle size distribution, settling velocity distribution
host publication
Proceedings 5th IWA/WEF Wastewater Treatment Modelling Seminar (WWTmod2016)
pages
109 - 118
publisher
IWA Publishing
conference name
5th IWA/WEF Wastewater Treatment Modelling Seminar (WWTmod2016)
conference location
Annecy, France
conference dates
2016-04-02 - 2016-04-06
language
English
LU publication?
yes
id
e6f3bd8b-5de1-4316-ab96-0ac628aec933
date added to LUP
2019-06-13 13:36:53
date last changed
2021-11-25 16:18:42
@inproceedings{e6f3bd8b-5de1-4316-ab96-0ac628aec933,
  abstract     = {{This  contribution introduces  a  new  perspective  on  the  modelling  of  settling  behaviour aimed at providing a  unified description of the processes taking place both in primary and secondary  settling  tanks  for  a  more <br/>detailed  operation  and  control  in  Water  and  Resource Recovery  Facilities  (WRRFs).  First,  experimental  evidence  is  provided  pointing  out  the <br/>flocculation  state  of  sludge  as  an  important  common  source  of  distributed  behavior  in different  settling  processes.  Subsequently,  a  unified  model  framework  considering  several particle classes is proposed in order to describe this distributed settling behaviour as well as the  effect  of  variations  in  flocculation  state  on  the  settling  process.  The  result  is  a  set  of <br/>PDEs that are valid from dilute concentrations where they correspond to discrete settling to concentrated  suspensions  where  they  correspond  to  compression  settling  and can  thus  be used to model both primary and secondary settling tanks.}},
  author       = {{Torfs, Elena and Locatelli, Florent and Balemans, Sophie and Laurant, Julien and Vanrolleghem, P.A. and Bürger, Raimund and Diehl, Stefan and François, Pierre and Mosse, Robert and Nopens, Ingmar}},
  booktitle    = {{Proceedings 5th IWA/WEF Wastewater Treatment Modelling Seminar (WWTmod2016)}},
  keywords     = {{primary clarifier; secondary clarifier; clarification; compression; particle size distribution; settling velocity distribution}},
  language     = {{eng}},
  pages        = {{109--118}},
  publisher    = {{IWA Publishing}},
  title        = {{Concentration-driven models revisited: Towards a unified framework to model settling tanks in WWTPs}},
  year         = {{2016}},
}