Investigation of the Effect of Viscosity on Slug Flow in Airlift Tubular Membranes in Search for a Sludge Surrogate

Nicolas Rios Ratkovich, C.C.V. Chan, P.R. Berube, I. Nopens

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

Abstrakt

The behaviour of three different liquid-gas slug flows (water, carboxymethyl cellulose and activated sludge) in a vertical tube was studied using a high speed camera (HSC). Experiments were performed using different flow rates and two tube diameters (6.5 and 9.9 mm). The observed difference in behaviour of the ascending gas slugs can be explained by the difference in viscosity of the fluids (Newtonian and non-Newtonian). Moreover, it was observed that the degree of coalescence of gas slugs is lower for non-Newtonian liquids and they behave like a succession of slugs without actually coalescing into a single larger gas slug. Finally, gas slug rising velocities were also extracted, but no subsequent difference in the rising velocities of the different fluids was found.
OriginalsprogEngelsk
TitelProceedings of IWA-MTC 2009
Antal sider14
Publikationsdato2009
StatusUdgivet - 2009
Udgivet eksterntJa
BegivenhedIWA Specialist Conference on Membrane Technology for Water and Wastewater Treatment - Beijing, Kina
Varighed: 1 sep. 20093 sep. 2009

Konference

KonferenceIWA Specialist Conference on Membrane Technology for Water and Wastewater Treatment
LandKina
ByBeijing
Periode01/09/200903/09/2009

Bibliografisk note

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  • Citationsformater

    Ratkovich, N. R., Chan, C. C. V., Berube, P. R., & Nopens, I. (2009). Investigation of the Effect of Viscosity on Slug Flow in Airlift Tubular Membranes in Search for a Sludge Surrogate. I Proceedings of IWA-MTC 2009