Flocs restructuring during Aggregation: Experimental evidence and numerical simulation

Journal Article (Journal Article)

Aggregate structure, i.e., fractal dimension, has a coupled geometric and hydrodynamic impact on the aggregate collision frequencies. In this work, we evaluated different collision frequency kernel calculation schemes to simulate experimentally determined latex particle aggregation kinetics. Light scattering was used to simultaneously measure aggregate size and fractal dimension throughout the latex aggregation experiments. The intermediate collision scheme proposed by Veerepanneni and Wiesner (J. Colloid Interface Sci. 177, 45-57 (1996)) is in agreement with experimental aggregation kinetics if considered along with experimentally determined fractal dimension evolution. Aggregate restructuring was found to be an important mechanism in explaining aggregation kinetics. © 2001 Academic Press.

Full Text

Duke Authors

Cited Authors

  • Thill, A; Moustier, S; Aziz, J; Wiesner, MR; Bottero, JY

Published Date

  • November 1, 2001

Published In

Volume / Issue

  • 243 / 1

Start / End Page

  • 171 - 182

International Standard Serial Number (ISSN)

  • 0021-9797

Digital Object Identifier (DOI)

  • 10.1006/jcis.2001.7801

Citation Source

  • Scopus