Direct visualisation of bubble-particle interactions in presence of cavitation bubbles in an ultrasonic flotation cell

2021 ◽  
Vol 174 ◽  
pp. 107258
Author(s):  
Subhasish Mitra ◽  
Mohammad Mainul Hoque ◽  
Geoffrey Evans ◽  
A.V. Nguyen
Keyword(s):  
Particle Interactions ◽  
Cavitation Bubbles ◽  
Flotation Cell

Investigation of bubble-particle interactions in a mechanical flotation cell, part 1: Collision frequencies and efficiencies

2019 ◽  
Vol 134 ◽  
pp. 54-64 ◽  
Author(s):  
Hossna Darabi ◽  
S.M. Javad Koleini ◽  
David Deglon ◽  
Bahram Rezai ◽  
Mahmoud Abdollahy
Keyword(s):  
Particle Interactions ◽  
Flotation Cell

Quantification of foaming behaviour using foam index

2000 ◽  
Vol 42 (3-4) ◽  
pp. 423-428
Author(s):  
W.J. Ng ◽  
S.L. Ong ◽  
N. Sarada ◽  
J.Y. Hu ◽  
X.J. Fan ◽  
...  
Keyword(s):  
Small Concentration ◽  
Factors Influencing ◽  
Flotation Cell ◽  
Foam Index

The factors influencing foam index were identified and their effects on foam index were investigated. It was noted that increasing the diameter of the flotation cell led to an increase in foam index. The maximum foam index was found to occur at a constant air/solids ratio when MLSS was varied with time of aeration or airflow. A good degree of correlation was also obtained between filament count and foam index. A small concentration of Surfactants was sufficient to induce foaming. However, further increase in surfactants showed relatively little influence on Foam Index.

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