An evaluation of a dynamic model of the secondary clarifier
Författare
Summary, in English
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.
Avdelning/ar
- Industriell elektroteknik och automation
- Matematik LTH
- Partial differential equations
- Numerical Analysis
Publiceringsår
1996
Språk
Engelska
Sidor
19-26
Publikation/Tidskrift/Serie
Water Science and Technology
Volym
34
Issue
5
Länkar
Dokumenttyp
Artikel i tidskrift
Förlag
IWA Publishing
Ämne
- Mathematics
- Computational Mathematics
- Other Electrical Engineering, Electronic Engineering, Information Engineering
- Water Engineering
- Water Treatment
Nyckelord
- secondary clarifier
- one-dimensional model
- mathematical modelling
- clarification
- Activated sludge
- thickening
- solids flux
- settler
- simulation
Status
Published
Forskningsgrupp
- Partial differential equations
- Numerical Analysis
ISBN/ISSN/Övrigt
- ISSN: 0273-1223