Skip to Main content Skip to Navigation
Journal articles

Turbulent Aggregation of Titania in Water

Abstract : This paper deals with the application of two in situ particle sizing methods to the study of aggregation of titanium dioxide in turbulent aqueous solutions. Turbidity measurements are used to characterize aggregation of diluted suspensions (solid volume fraction less than 10−4). Analysis of backscattered light can be applied to highly concentrated suspensions. Because in situ measurements are possible, the aggregation process can be followed from its beginning to the final steady state which is always observed. The influences of stirring rate and solid volume fraction on the aggregation dynamics are presented. They are interpreted in the framework of a model of aggregation which takes into account the morphology and the related optical properties of the aggregates and the physical and hydrodynamic interactions between aggregates. The complex relationship between aggregate restructuring and aggregation on one hand, and fragmentation on the other hand, is considered.
Document type :
Journal articles
Complete list of metadata
Contributor : Andrée-Aimée Toucas Connect in order to contact the contributor
Submitted on : Monday, July 19, 2010 - 2:44:20 PM
Last modification on : Monday, June 27, 2022 - 3:03:18 AM

Links full text



Christoph Tontrup, Frédéric Gruy, Michel Cournil. Turbulent Aggregation of Titania in Water. Journal of Colloid and Interface Science, Elsevier, 2000, 229 (2), pp.511-525. ⟨10.1006/jcis.2000.6994⟩. ⟨emse-00503979⟩



Record views