Details zur Publikation
Kategorie Textpublikation
Referenztyp Buchkapitel
Titel (primär) Process modelling of oxygen supply for aerobic biodegradation in the presence of an oxygen bubble wall
Titel (sekundär) Groundwater quality: natural and enhanced restoration of groundwater pollution. Selected and reviewed papers presented at the Groundwater Quality 2001 Conference, Sheffield, UK, 18-21 June 2001
Autor Geistlinger, H.; Eisermann, D.; Lazik, D.; Weiß, H.
Herausgeber Thornton, S.F.; Oswald, S.E.
Journal / Serie IAHS Publication
Erscheinungsjahr 2002
Department HDG; GWS; BOPHY; PB IBFL
Band/Volume 275
Seite von 507
Seite bis 512
Sprache englisch
Keywords aerobic; air sparging; biodegradation; kinetic model; oxygen bubble wall
Abstract For the first time a coupled flow- and transport model for dissolution of a residual gas phase avoiding the unphysical constant volume assumption is developed. The kinetic model describes the shrinking of the gas bubbles during dissolution. Calculating the lifetime of an oxygen bubble wall, we found that the Henry equilibrium model underestimates the lifetime by an error of 31 to 43%, whereas the constant volume approach overestimates the lifetime by an error of more than 100% over the whole range of bubble radii. Our main conclusion is that neither model is able to describe the physics of the dissolution process correctly.
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=5504
Geistlinger, H., Eisermann, D., Lazik, D., Weiß, H. (2002):
Process modelling of oxygen supply for aerobic biodegradation in the presence of an oxygen bubble wall
In: Thornton, S.F., Oswald, S.E. (eds.)
Groundwater quality: natural and enhanced restoration of groundwater pollution. Selected and reviewed papers presented at the Groundwater Quality 2001 Conference, Sheffield, UK, 18-21 June 2001
IAHS Publ. 275
International Association of Hydrological Sciences (IAHS), Wallingford, Oxfordshire, p. 507 - 512