TRAJECTORY MODELING OF NON-BROWNIAN PARTICLE FLOTATION USING AN EXTENDED DERJAGUIN-LANDAU-VERWEY-OVERBEEK APPROACH

被引：14

作者：

LAFRANCE, P

GRASSO, D

机构：

[1] UNIV CONNECTICUT, ENVIRONM ENGN PROGRAM, STORRS, CT 06269 USA

[2] UNIV CONNECTICUT, DEPT CIVIL & ENVIRONM ENGN, STORRS, CT 06269 USA

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 1995年 / 29卷 / 05期

关键词：

D O I：

10.1021/es00005a029

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Pressure flotation of nitrocellulose (NC) fines was quantified by trajectory analysis. A model was formulated that incorporates recently developed extended DLVO (ExDLVO) theory and the short-range hydrodynamic interactions of a particle near a bubble surface. A repulsive Lifshitz-van der Waals (LW) force was found to exist between particle and bubble. Attractive long-range hydrophobic forces between NC particles and bubbles were responsible for particle adhesion. Model predictions of flotation efficiency compared well with experimental results.

引用

页码：1346 / 1352

页数：7

共 58 条

[1] THE SLOW MOTION OF A SPHERE THROUGH A VISCOUS FLUID TOWARDS A PLANE SURFACE [J].