An evaluation of a dynamic model of the secondary clarifier
(1996) In Water Science and Technology 34(5). p.19-26- Abstract
- The main objective of the paper is to support and illustrate recent theoretical results on the mathematical modelling of the secondary clarifier. A new settler model is compared with a traditional layer model by means of numerical simulations. Emphasis is put on the numerical solution's ability to approximate the analytical solution of the conservation law written as a non-linear partial differential equation. The new settler model is consistent in this respect. Another important conclusion is that a layer model dividing the settler into only ten layers (normally used in settler models) is too crude an approximation to capture the detailed dynamic behaviour of the settler. All simulations presented are performed with the settler models... (More)
- The main objective of the paper is to support and illustrate recent theoretical results on the mathematical modelling of the secondary clarifier. A new settler model is compared with a traditional layer model by means of numerical simulations. Emphasis is put on the numerical solution's ability to approximate the analytical solution of the conservation law written as a non-linear partial differential equation. The new settler model is consistent in this respect. Another important conclusion is that a layer model dividing the settler into only ten layers (normally used in settler models) is too crude an approximation to capture the detailed dynamic behaviour of the settler. All simulations presented are performed with the settler models coupled to the IAWQ Activated Sludge Model No. 1. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/792881
- author
- Jeppsson, Ulf LU and Diehl, Stefan LU
- organization
- publishing date
- 1996
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- secondary clarifier, one-dimensional model, mathematical modelling, clarification, Activated sludge, thickening, solids flux, settler, simulation
- in
- Water Science and Technology
- volume
- 34
- issue
- 5
- pages
- 19 - 26
- publisher
- IWA Publishing
- external identifiers
-
- scopus:0029859439
- ISSN
- 0273-1223
- DOI
- 10.1016/0273-1223(96)00624-5
- language
- English
- LU publication?
- yes
- id
- 2f13afb0-828b-40bb-9157-d7582353dc00 (old id 792881)
- alternative location
- http://www.iwaponline.com/wst/03405/0019/034050019.pdf
- date added to LUP
- 2016-04-01 15:44:59
- date last changed
- 2022-01-28 06:54:51
@article{2f13afb0-828b-40bb-9157-d7582353dc00,
abstract = {{The main objective of the paper is to support and illustrate recent theoretical results on the mathematical modelling of the secondary clarifier. A new settler model is compared with a traditional layer model by means of numerical simulations. Emphasis is put on the numerical solution's ability to approximate the analytical solution of the conservation law written as a non-linear partial differential equation. The new settler model is consistent in this respect. Another important conclusion is that a layer model dividing the settler into only ten layers (normally used in settler models) is too crude an approximation to capture the detailed dynamic behaviour of the settler. All simulations presented are performed with the settler models coupled to the IAWQ Activated Sludge Model No. 1.}},
author = {{Jeppsson, Ulf and Diehl, Stefan}},
issn = {{0273-1223}},
keywords = {{secondary clarifier; one-dimensional model; mathematical modelling; clarification; Activated sludge; thickening; solids flux; settler; simulation}},
language = {{eng}},
number = {{5}},
pages = {{19--26}},
publisher = {{IWA Publishing}},
series = {{Water Science and Technology}},
title = {{An evaluation of a dynamic model of the secondary clarifier}},
url = {{http://dx.doi.org/10.1016/0273-1223(96)00624-5}},
doi = {{10.1016/0273-1223(96)00624-5}},
volume = {{34}},
year = {{1996}},
}