COLL 511 |
| You-Im Chang1, Hsun-Chih Chan1, and Shan-Chih Chen2. (1) Department of Chemical Engineering, Tunghai University, Taichung, 40704, Taiwan, (2) Department of Chemical Engineering, National Taiwan University, Taipei, 10617, Taiwan |
| Applying with the network model to track the individual Brownian particles movement through the filter bed, the effect of different interaction energy curves of DLVO theory on the permeability reduction in a filter bed is investigated by using the Brownian dynamics simulation method. When energy barrier exists and both particle and pore size distributions are of the Raleigh type, it is found that particles with Brownian motion behavior are easier to get straining at small pores, and cause higher permeability reduction than those without considering the Brownian motion behavior. When comparing with the permeability reduction experimental data, it is found that the present model shows fair agreement between the theory and the experimental results when the direct deposition mechanism is dominant. |
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Symposium in Memory of Arthur W. Adamson
2:00 PM-5:20 PM, Thursday, April 1, 2004 Marriott -- Orange County 3, Oral
Division of Colloid and Surface Chemistry |