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Impact on sludge inventory and control strategies using the Benchmark Simulation Model No. 1 with the Bürger-Diehl settler model

Torfs, Elena; Maere, Thomas; Bürger, Raimund; Diehl, Stefan LU and Nopens, Ingmar (2015) In Water Science and Technology 71(10). p.1524-1535
Abstract
An improved one-dimensional (1-D) model for the secondary clarifier, i.e. the Bürger-Diehl model, was recently presented. The decisive difference to traditional layer models is that every detail of the implementation is in accordance with the theory of partial differential equations. The Bürger-Diehl model allows accounting for hindered and compressive settling as well as inlet dispersion. In this contribution, the impact of specific features of the Bürger-Diehl model on settler underflow concentration predictions, plant sludge inventory and mixed liquor suspended solids based control actions are investigated by using the benchmark simulation model no. 1. The numerical results show that the Bürger-Diehl model allows for more realistic... (More)
An improved one-dimensional (1-D) model for the secondary clarifier, i.e. the Bürger-Diehl model, was recently presented. The decisive difference to traditional layer models is that every detail of the implementation is in accordance with the theory of partial differential equations. The Bürger-Diehl model allows accounting for hindered and compressive settling as well as inlet dispersion. In this contribution, the impact of specific features of the Bürger-Diehl model on settler underflow concentration predictions, plant sludge inventory and mixed liquor suspended solids based control actions are investigated by using the benchmark simulation model no. 1. The numerical results show that the Bürger-Diehl model allows for more realistic predictions of the underflow sludge concentration, which is essential for more accurate wet weather modelling and sludge waste predictions. The choice of secondary settler model clearly has a profound impact on the operation and control of the entire treatment plant and it is recommended to use the Bürger-Diehl model as of now in any wastewater treatment plant modelling effort. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
clarifier, compression settling, layer model, underflow, wet weather
in
Water Science and Technology
volume
71
issue
10
pages
1524 - 1535
publisher
IWA Publishing
external identifiers
  • wos:000354728000014
  • pmid:26442495
  • scopus:84929590745
ISSN
0273-1223
DOI
10.2166/wst.2015.122
language
English
LU publication?
yes
id
7269b084-fc4d-4d92-8521-03a944014293 (old id 5268496)
date added to LUP
2015-06-09 12:09:14
date last changed
2017-10-22 03:28:56
@article{7269b084-fc4d-4d92-8521-03a944014293,
  abstract     = {An improved one-dimensional (1-D) model for the secondary clarifier, i.e. the Bürger-Diehl model, was recently presented. The decisive difference to traditional layer models is that every detail of the implementation is in accordance with the theory of partial differential equations. The Bürger-Diehl model allows accounting for hindered and compressive settling as well as inlet dispersion. In this contribution, the impact of specific features of the Bürger-Diehl model on settler underflow concentration predictions, plant sludge inventory and mixed liquor suspended solids based control actions are investigated by using the benchmark simulation model no. 1. The numerical results show that the Bürger-Diehl model allows for more realistic predictions of the underflow sludge concentration, which is essential for more accurate wet weather modelling and sludge waste predictions. The choice of secondary settler model clearly has a profound impact on the operation and control of the entire treatment plant and it is recommended to use the Bürger-Diehl model as of now in any wastewater treatment plant modelling effort.},
  author       = {Torfs, Elena and Maere, Thomas and Bürger, Raimund and Diehl, Stefan and Nopens, Ingmar},
  issn         = {0273-1223},
  keyword      = {clarifier,compression settling,layer model,underflow,wet weather},
  language     = {eng},
  number       = {10},
  pages        = {1524--1535},
  publisher    = {IWA Publishing},
  series       = {Water Science and Technology},
  title        = {Impact on sludge inventory and control strategies using the Benchmark Simulation Model No. 1 with the Bürger-Diehl settler model},
  url          = {http://dx.doi.org/10.2166/wst.2015.122},
  volume       = {71},
  year         = {2015},
}