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Applying the ASM3 model for evaluation of control strategies for a biological nitrogen removal wastewater treatment plant

Bertello, J M; Mussati, M C; Gernaey, K V and Aguirre, P A (2005) 2nd Mercosur Congress on Chemical Engineering; 4th Mercosur Congress on Process Systems Engineering
Abstract
Biological nutrient removal processes for municipal wastewaters have received quite some

attention during the past decades, especially due to the introduction of stricter legislation with respect to

allowable effluent pollutant discharge limits. The necessity for performance improvement of existing

activated sludge wastewater treatment plants (ASWWTPs) has created a need for detailed process models that

can be used in the development and evaluation of more efficient activated sludge plant control strategies. The

main aim of this work is to compare the plant performance predicted by standard activated sludge models

(Activated Sludge Model No 1 (ASM1) and No 3 (ASM3) of the International... (More)
Biological nutrient removal processes for municipal wastewaters have received quite some

attention during the past decades, especially due to the introduction of stricter legislation with respect to

allowable effluent pollutant discharge limits. The necessity for performance improvement of existing

activated sludge wastewater treatment plants (ASWWTPs) has created a need for detailed process models that

can be used in the development and evaluation of more efficient activated sludge plant control strategies. The

main aim of this work is to compare the plant performance predicted by standard activated sludge models

(Activated Sludge Model No 1 (ASM1) and No 3 (ASM3) of the International Water Association (IWA))

when simulating basic control strategies for an ASWWTP case study. The control strategies tested include

five basic control loops and seven combined strategies. Compared to the ASM1 model, the ASM3 model

predicts in general significantly higher average effluent SNH4 and NTOT concentrations for all basic control

loops, assuming for both models the same influent wastewater biodegradable N and COD content, and

applying identical controller settings. For strategies with external carbon dosage, the carbon dosage needs

predicted by the ASM3 model are generally considerably higher than for the ASM1 model, a point that needs

further investigation. When comparing cost performance index (CPI) and effluent quality (EQ), both models

often predict similar trends, albeit that the EQ and the CPI for the ASM3 model are generally considerably

higher than for the ASM1 model for the same control strategy. Both models predict the lowest CPI for

strategy C3 (master DO controller + control of Qrint) but ASM3 does not predict compliance with the effluent

ammonium and total nitrogen limits; whereas strategies C6 (master DO controller + carbon dosage) and C*

(C6 + control of Qrint) predict the best EQ. (Less)
Please use this url to cite or link to this publication:
author
publishing date
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Contribution to conference
publication status
published
subject
pages
10 pages
conference name
2nd Mercosur Congress on Chemical Engineering; 4th Mercosur Congress on Process Systems Engineering
language
English
LU publication?
no
id
803a8461-e798-456e-8ab3-3e5e46d16afa (old id 641430)
alternative location
http://www.enpromer2005.eq.ufrj.br/nukleo/pdfs/0194_enpromer_194.pdf
date added to LUP
2007-12-02 14:38:40
date last changed
2016-06-29 08:59:11
@misc{803a8461-e798-456e-8ab3-3e5e46d16afa,
  abstract     = {Biological nutrient removal processes for municipal wastewaters have received quite some<br/><br>
attention during the past decades, especially due to the introduction of stricter legislation with respect to<br/><br>
allowable effluent pollutant discharge limits. The necessity for performance improvement of existing<br/><br>
activated sludge wastewater treatment plants (ASWWTPs) has created a need for detailed process models that<br/><br>
can be used in the development and evaluation of more efficient activated sludge plant control strategies. The<br/><br>
main aim of this work is to compare the plant performance predicted by standard activated sludge models<br/><br>
(Activated Sludge Model No 1 (ASM1) and No 3 (ASM3) of the International Water Association (IWA))<br/><br>
when simulating basic control strategies for an ASWWTP case study. The control strategies tested include<br/><br>
five basic control loops and seven combined strategies. Compared to the ASM1 model, the ASM3 model<br/><br>
predicts in general significantly higher average effluent SNH4 and NTOT concentrations for all basic control<br/><br>
loops, assuming for both models the same influent wastewater biodegradable N and COD content, and<br/><br>
applying identical controller settings. For strategies with external carbon dosage, the carbon dosage needs<br/><br>
predicted by the ASM3 model are generally considerably higher than for the ASM1 model, a point that needs<br/><br>
further investigation. When comparing cost performance index (CPI) and effluent quality (EQ), both models<br/><br>
often predict similar trends, albeit that the EQ and the CPI for the ASM3 model are generally considerably<br/><br>
higher than for the ASM1 model for the same control strategy. Both models predict the lowest CPI for<br/><br>
strategy C3 (master DO controller + control of Qrint) but ASM3 does not predict compliance with the effluent<br/><br>
ammonium and total nitrogen limits; whereas strategies C6 (master DO controller + carbon dosage) and C*<br/><br>
(C6 + control of Qrint) predict the best EQ.},
  author       = {Bertello, J M and Mussati, M C and Gernaey, K V and Aguirre, P A},
  language     = {eng},
  pages        = {10},
  title        = {Applying the ASM3 model for evaluation of control strategies for a biological nitrogen removal wastewater treatment plant},
  year         = {2005},
}