An experimental study of particle-bubble interaction and attachment in flotation
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MS Thesis Aaron Sanchez
Type
ThesisAuthors
Sanchez Yanez, Aaron
Advisors
Thoroddsen, Sigurdur T
Committee members
Farooq, Aamir
Ng, Kim Choon

Program
Mechanical EngineeringKAUST Department
Physical Science and Engineering (PSE) DivisionDate
2017-05Permanent link to this record
http://hdl.handle.net/10754/625292
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The particle-bubble interaction is found in industrial applications with the purpose of selective separation of materials especially in the mining industry. The separation is achieved with the use of bubbles that collect particles depending on their hydrophobicity. There are few experimental studies involving a single interaction between a bubble and a particle. The purpose of this work is to understand this interaction by the study of a single bubble interacting with a single particle. Experiments were conducted using ultra-pure water, glass particles and air bubbles. Single interactions of particles with bubbles were observed using two high speed cameras. The cameras were placed perpendicular to each other allowing to reconstruct the three-dimensional position of the particle, the bubble and the particle-bubble aggregate. A single size of particle was used varying the size for the bubbles. It was found that the attachment of a particle to a bubble depends on its degree of hydrophobicity and on the relative position of the particle and the bubble before they encounter.Citation
Sanchez Yanez, A. (2017). An experimental study of particle-bubble interaction and attachment in flotation. KAUST Research Repository. https://doi.org/10.25781/KAUST-50717ae974a485f413a2113503eed53cd6c53
10.25781/KAUST-50717