IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
Log On
About IAHRDirectoryCommitteesMy IAHRNews & JournalseLibraryeShopEventsJoin IAHRWorld CongressDonate
spacer.gif
spacer.gif eLibrary
spacer.gif eLibrary
You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Special sessions : Activated sludge modelling with smoothed particle hydrodynamics
Activated sludge modelling with smoothed particle hydrodynamics
Author : MICHAEL MEISTER(1), CHRISTOPH BERGMEISTER(2), DANIEL WINKLER(3) & WOLFGANG RAUCH(4)
ABSTRACT
In this work a novel wastewater treatment model based on smoothed particle hydrodynamics is proposed. To account for
the biokinetic processes the activated sludge model (ASM) number 1 is used. Since the local hydrodynamics are
neglected in the original model, ASM1 is coupled to the wastewater hydraulics, which are simulated with weakly
compressible smoothed particle hydrodynamics. In the aerobic reactor the stirrer induced mixing of the biokinetic
compounds is modelled with external forces. In the anoxic reactor the bubble induced mixing is described by a novel multifluid
formulation, which allows for resolving the collective movement of rising air bubbles at a coarse resolution of 4 to 8
SPH particles per bubble. With the new algorithm the simulation times of biokinetic processes can be attained and hence
we present results for a full scale treatment plant simulation conducted with the coupled solver.
File Size : 1,237,957 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Special sessions
Date Published : 13/08/2015
Download Now