Surfactants and Detergents

0502908 - ÚCHP 2020 RIV GB eng M - Monography Chapter
Basařová, P. - Zedníková, Mária
Effect of Surfactants on Bubble-Particle Interactions.
Surfactants and Detergents. London: IntechOpen, 2019 - (Dutta, A.), s. 29-41. ISBN 978-1-78984-660-7
Institutional support: RVO:67985858
Keywords : bubble-particle interaction * surfactant * three-phase contact line expansion
OECD category: Chemical process engineering
https://www.intechopen.com/online-first/effect-of-surfactants-on-bubble-particle-interactions

The interaction of air bubbles with solid particles is an important mechanism in many industrial processes, e.g. in flotation, fermentation, wetting, multiphase reactors and columns, etc. The surface active agents adsorb both on air-liquid and solid-liquid interfaces and significantly influence the bubble-particle interaction. In this chapter, the mechanism, dynamics and fundamental steps of bubble adhesion onto the solid surface are described. The first part is devoted to the description of influence of surfactants on the bubble behaviour during the collision, as well as their influence on thinning and breaking of liquid film. The second part describes the effect of surfactants on the formation and expansion of the three-phase contact line between the bubble and the hydrophobic solid particle. The important role of surfactant type, concentration and purity is discussed.
Permanent Link: http://hdl.handle.net/11104/0303887