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A simplified model of an activated sludge process with a plug-flow reactor

Zambrano, Jesús ; Carlsson, Bengt ; Diehl, Stefan LU and Nehrenheim, Emma (2016) The 9th Eurosim Congress on Modelling and Simulation EUROSIM 2016, The 57th SIMS Conference on Simulation and Modelling SIMS 2016 In Linköping electronic conference proceedings 142. p.824-830
Abstract
The analysis of a simplified activated sludge process (ASP) with one main dissolved substrate and one main particulate biomass has been conducted in steady-state conditions. The ASP is formed by a plug-flow reactor and
a settler tank. The biomass growth rate is described by a Monod function. For this process, it is not possible to get an explicit expression for the effluent substrate concentration when the process is subject to a fixed sludge age.
However, when the substrate concentration of the influent is much greater than that of the effluent, an approximate and explicit relation between them is obtained. Numerical examples with two models for the settler are presented. One model is the ideal... (More)
The analysis of a simplified activated sludge process (ASP) with one main dissolved substrate and one main particulate biomass has been conducted in steady-state conditions. The ASP is formed by a plug-flow reactor and
a settler tank. The biomass growth rate is described by a Monod function. For this process, it is not possible to get an explicit expression for the effluent substrate concentration when the process is subject to a fixed sludge age.
However, when the substrate concentration of the influent is much greater than that of the effluent, an approximate and explicit relation between them is obtained. Numerical examples with two models for the settler are presented. One model is the ideal settler, which assumes a complete
thickening of the sludge. The other model includes hindered settling and sludge compression. Numerical results show the effectiveness and the limitations of the proposed solution under these scenarios. (Less)
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author
; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
bioreactor, clarifier, sludge blanket, sludge age
host publication
Proceedings of The 9th Eurosim Congress on Modelling and Simulation EUROSIM 2016, The 57th SIMS Conference on Simulation and Modelling SIMS 2016
series title
Linköping electronic conference proceedings
volume
142
pages
824 - 830
publisher
Linköping University Electronic Press
conference name
The 9th Eurosim Congress on Modelling and Simulation EUROSIM 2016, The 57th SIMS Conference on Simulation and Modelling SIMS 2016
conference location
Oulu, Finland
conference dates
2016-09-12 - 2016-09-16
ISSN
1650-3740
1650-3686
ISBN
978-91-7685-399-3
DOI
10.3384/ecp17142824
language
English
LU publication?
yes
additional info
The two conferences EUROSIM 2016 and SIMS 2016 were held jointly.
id
3e543674-8b01-4afc-8566-7de9b69bd3e6
date added to LUP
2019-06-13 13:46:57
date last changed
2023-03-21 15:32:07
@inproceedings{3e543674-8b01-4afc-8566-7de9b69bd3e6,
  abstract     = {{The  analysis  of  a  simplified  activated  sludge  process (ASP)  with  one  main  dissolved  substrate  and  one  main particulate  biomass  has  been  conducted  in  steady-state conditions. The ASP is formed by a plug-flow reactor and<br/>a settler tank.  The biomass growth rate is described by a Monod function. For this process, it is not possible to get an  explicit  expression  for  the  effluent  substrate  concentration when the process is subject to a fixed sludge age.<br/>However, when the substrate concentration of the influent is much greater than that of the effluent, an approximate and explicit relation between them is obtained. Numerical examples  with  two models  for  the  settler  are  presented. One model is the ideal settler, which assumes a complete<br/>thickening of the sludge.  The other model includes hindered settling and sludge compression.  Numerical results show the effectiveness and the limitations of the proposed solution under these scenarios.}},
  author       = {{Zambrano, Jesús and Carlsson, Bengt and Diehl, Stefan and Nehrenheim, Emma}},
  booktitle    = {{Proceedings of The 9th Eurosim Congress on Modelling and Simulation EUROSIM 2016, The 57th SIMS Conference on Simulation and Modelling SIMS 2016}},
  isbn         = {{978-91-7685-399-3}},
  issn         = {{1650-3740}},
  keywords     = {{bioreactor; clarifier; sludge blanket; sludge age}},
  language     = {{eng}},
  pages        = {{824--830}},
  publisher    = {{Linköping University Electronic Press}},
  series       = {{Linköping electronic conference proceedings}},
  title        = {{A simplified model of an activated sludge process with a plug-flow reactor}},
  url          = {{http://dx.doi.org/10.3384/ecp17142824}},
  doi          = {{10.3384/ecp17142824}},
  volume       = {{142}},
  year         = {{2016}},
}