Results 251 to 260 of about 2,672,653 (314)

Kinetic Monte Carlo method applied to micrometric particle detachment mechanisms by aerodynamic forces

Journal of Physics: Condensed Matter, 2021
The formulation of a kinetic Monte Carlo simulation to account for the different possible mechanisms present in the problem of resuspension of aerosol particles is addressed as an extension of a former model Benito et al (2016 J. Aerosol Sci. 100 26–37).
M. C. Villagrán Olivares, J. Benito, R. Uñac, A. Vidales   +3 more
semanticscholar   +1 more source

New insights into the role of surface nanobubbles in bubble-particle detachment.

Langmuir, 2020
It is well recognized that an improved flotation recovery can be achieved by introducing nanobubbles to common flotation practice due to the increased capture efficiency between bubble and particle.
Shihao Ding, Yaowen Xing, Xi Zheng, Youfei Zhang, Yijun Cao, X. Gui   +5 more
semanticscholar   +1 more source

Bubble–particle attachment and detachment in flotation

International Journal of Mineral Processing, 1999
Abstract The mechanism by which particles and bubbles interact captures many of the central concepts of colloid science and hydrodynamics and is an example of heterocoagulation. Hydrodynamics, interfacial (including capillary) forces, particle and bubble behaviour and solution chemistry are all interwoven.
John Ralston, Daniel Fornasiero, Robert Hayes   +2 more
openaire   +2 more sources

Detachment of particles and particle clusters from liquid/liquid interfaces

Journal of Colloid and Interface Science, 2015
The detachment of microspheres from a liquid/liquid interface triggered by body forces is studied experimentally, both for the case of single particles and for particle clusters. The values of the critical force required to detach particles from the interface are in agreement with the maximum values of the wetting force keeping a particles at the ...
N, Sinn, M, Alishahi, S, Hardt
openaire   +2 more sources

Hydrodynamic force and torque acting on a micron-sized spherical particle attached to a surface with large-scale concave roughness in linear shear flow and the possibility of detachment

Journal of Fluid Mechanics, 2022
This work studies the detachment of a micron-sized spherical particle from a surface with concave roughness in a linear shear flow. The concave roughness is described as regularly spaced hollow hemispheres below a flat surface and is characterised by two
Kun Meng, Yequ Pang, Yinshui Liu, Yan Cui   +3 more
semanticscholar   +1 more source

The particle detachment process in flotation

Minerals Engineering, 1995
Experimental measurements of particle-bubble detachment forces by means of a novel vibration technique provide a more realistic analogue of the conditions in a flotation cell than the centrifuge techniques previously adopted. The detachment forces measured using the new apparatus show good agreement with the forces predicted theoretically by Nutt.
Cheng, Ta-Wui, Holtham, P. N.
openaire   +2 more sources

Kinetics of Particle Deposition and Detachment

The Journal of Adhesion, 1995
Abstract The packed column technique serves as a useful tool in the investigations of the deposition and removal mechanisms of particles dispersed in a liquid in contact with a solid substrate. A model is presented which can be used to estimate explicitly the effects of multilayer deposition, which is based on three phenomenological parameters: two ...
Egon Matijević, Niels P. Ryde
openaire   +1 more source

Particle Detachment in Deep Bed Filtration

Journal of Colloid and Interface Science, 1997
The paper examines the behavior of particle detachment in deep bed filtration and the dependence of particle detachment on several filtration operating parameters. Theoretical analysis was carried out by considering the balance of various relevant interaction forces. Based on the results, experiments were conducted to study the effect of particle size,
Bai, R., Tien, C.
openaire   +2 more sources

Detachment of particles during biofilter backwashing

Journal AWWA, 1998
A model explains why bacteria and organic polymers are more difficult to remove than nonbiological particles during biofilter backwashing.Granular activated carbon (GAC) biological filters accumulate both biological and nonbiological particles on the filter bed.
R. Ahmad, A. Amirtharajah
openaire   +1 more source

The roles of power loss and momentum-pressure loss in causing particle-detachment in tokamak divertors: I. A heuristic model analysis

Plasma Physics and Controlled Fusion, 2019
Particle-detachment is defined here based on Loarte’s Degree of Detachment, quantifier (1998 Nucl. Fusion 38 331). Specifically, particle-detachment is defined to be the edge plasma regime that sets in on an edge flux-tube when the plasma flux density ...
P. Stangeby
semanticscholar   +1 more source