Results 241 to 250 of about 402,207 (298)

Bubble size in flotation thickening

Water Research, 1994
Abstract The performance of flotation thickeners for waste activated sludge in The Netherlands does not meet expectations; without the addition of chemical aids the dry solids content of the floated sludge is 3–4% instead of the expected 4.5%. An investigation into the improvement of the flotation thickening of waste activated sludge has been made ...
Sander E. de Rijk, Graaf Jaap H.J.M. aivan der, Jan G. den Blanken   +2 more
openaire   +3 more sources

Bubble size distribution in bubble columns

The Canadian Journal of Chemical Engineering, 1990
AbstractThe bubble size distributions are measured for the air‐water system as a function of air velocity at room temperature in two bubble columns. High speed cinephotography and fiber optic probe techniques are used to measure the bubble size. Our limited measurements suggest that the bubble size may be independent of gas velocity in the range 3.6 to
A. C. Saxena, N. S. Rao, S. C. Saxena
openaire   +1 more source

Bubble-size distributions in foams

Advances in Colloid and Interface Science, 1992
Abstract Bubble-size distributions in foams can be used to study foam properties and to distinguish between the physical processes that contribute to the breakdown of the foam. These processes are drainage, coalescence and disproportionation. A new Foam Analyzer was developed to measure various foam characteristics like the rate of drainage, the rate
Bisperink, C.G.J., Ronteltap, A.D., Prins, A.   +2 more
openaire   +2 more sources

Factor Affecting Bubble Creation and Bubble Size

Volume 1: Advances in Aerospace Technology; Energy Water Nexus; Globalization of Engineering; Posters, 2011
This paper presents the factors affecting air bubble size when air is injected through a perforated membrane into a water pool. Critical factors that govern the size of air bubbles are the air pressure and the flow rate as well as the hole size of the diffuser membrane. In order to have a better understanding of how bubble size can be affected and what
Ammar A. T. Alkhalidi, Ryo S. Amano
openaire   +1 more source

Bubble size estimation in a bubble swarm

Journal of Colloid and Interface Science, 1988
Abstract The hindered settling equations of J. H. Masliyah (Chem. Eng. Sci.34, 1166 (1979)) have been adapted to predict mean bubble size in bubble swarms. The measurements required are superficial liquid and gas rates, and gas holdup. Predicted and measured (by photography) bubble sizes agree within 15% over the tested range 0.5–1.5 mm.
J.B Yianatos, J.A Finch, G.S Dobby, Manqiu Xu   +3 more
openaire   +1 more source