Impact of reactive settler models on simulated WWTP performance
(2006) In Water Science and Technology 53(1). p.159-167- Abstract
- Including a reactive settler model in a wastewater treatment plant model allows representation of the biological reactions taking place in the sludge blanket in the settler, something that is neglected in many simulation studies. The idea of including a reactive settler model is investigated for an ASM1 case study. Simulations with a whole plant model including the non-reactive Takacs settler model are used as a reference, and are compared to simulation results considering two reactive settler models. The first is a return sludge model block removing oxygen and a user-defined fraction of nitrate, combined with a non-reactive Takacs settler. The second is a fully reactive ASM1 Takacs settler model. Simulations with the ASM1 reactive settler... (More)
- Including a reactive settler model in a wastewater treatment plant model allows representation of the biological reactions taking place in the sludge blanket in the settler, something that is neglected in many simulation studies. The idea of including a reactive settler model is investigated for an ASM1 case study. Simulations with a whole plant model including the non-reactive Takacs settler model are used as a reference, and are compared to simulation results considering two reactive settler models. The first is a return sludge model block removing oxygen and a user-defined fraction of nitrate, combined with a non-reactive Takacs settler. The second is a fully reactive ASM1 Takacs settler model. Simulations with the ASM1 reactive settler model predicted a 15.3% and 7.4% improvement of the simulated N removal performance, for constant (steady-state) and dynamic influent conditions respectively. The oxygen/nitrate return sludge model block predicts a 10% improvement of N removal performance under dynamic conditions, and might be the better modelling option for ASM1 plants: it is computationally more efficient and it will not overrate the importance of decay processes in the settler. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/415891
- author
- Gernaey, K V ; Jeppsson, Ulf LU ; Batstone, D J and Ingildsen, P
- organization
- publishing date
- 2006
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- wastewater, sedimentation, ASM1, reactive settler, activated sludge, modelling
- in
- Water Science and Technology
- volume
- 53
- issue
- 1
- pages
- 159 - 167
- publisher
- IWA Publishing
- external identifiers
-
- pmid:16532746
- wos:000236011600019
- scopus:33644624753
- ISSN
- 0273-1223
- DOI
- 10.2166/wst.2006.018
- language
- English
- LU publication?
- yes
- id
- 1e39a816-6c11-4dd6-8086-2e55b0960942 (old id 415891)
- date added to LUP
- 2016-04-01 16:02:35
- date last changed
- 2022-01-28 08:55:15
@article{1e39a816-6c11-4dd6-8086-2e55b0960942,
abstract = {{Including a reactive settler model in a wastewater treatment plant model allows representation of the biological reactions taking place in the sludge blanket in the settler, something that is neglected in many simulation studies. The idea of including a reactive settler model is investigated for an ASM1 case study. Simulations with a whole plant model including the non-reactive Takacs settler model are used as a reference, and are compared to simulation results considering two reactive settler models. The first is a return sludge model block removing oxygen and a user-defined fraction of nitrate, combined with a non-reactive Takacs settler. The second is a fully reactive ASM1 Takacs settler model. Simulations with the ASM1 reactive settler model predicted a 15.3% and 7.4% improvement of the simulated N removal performance, for constant (steady-state) and dynamic influent conditions respectively. The oxygen/nitrate return sludge model block predicts a 10% improvement of N removal performance under dynamic conditions, and might be the better modelling option for ASM1 plants: it is computationally more efficient and it will not overrate the importance of decay processes in the settler.}},
author = {{Gernaey, K V and Jeppsson, Ulf and Batstone, D J and Ingildsen, P}},
issn = {{0273-1223}},
keywords = {{wastewater; sedimentation; ASM1; reactive settler; activated sludge; modelling}},
language = {{eng}},
number = {{1}},
pages = {{159--167}},
publisher = {{IWA Publishing}},
series = {{Water Science and Technology}},
title = {{Impact of reactive settler models on simulated WWTP performance}},
url = {{http://dx.doi.org/10.2166/wst.2006.018}},
doi = {{10.2166/wst.2006.018}},
volume = {{53}},
year = {{2006}},
}