期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2018
卷号：186
期号：3
页码：012020
DOI：10.1088/1755-1315/186/3/012020
语种：English
出版社：IOP Publishing
摘要：A straining-dominant filtration model based on a 2D square network is proposed. In this model, the colloid particle can be captured in a node only. The effects of network parameters (node size distribution parameters μn and σn and pore throat size distribution parameters μn and σb), particle concentration of influent (C0), and particle size distribution parameters (μr and σr) on straining-dominant deep bed filtration simulation are investigated. Four parameters (C0, μn, μb, and μr) significantly affect the simulated pressure drop and the normalized particle concentrations of effluent (Ce/C0). The increase in parameters μn and μb decreases pressure drop and increases Ce/C0, whereas the increase in parameters μr and C0 increases pressure drop and decreases Ce/C0. With the experimental condition and a 5% variation in parameters, parameters σn, σb, and σr are lowly sensitive to Ce/C0 and pressure drop. When the variation in σr is sufficiently large, the model simulation is significantly affected. The simulated normalized effluent concentrations and pressure drop are consistent with the experimental data under appropriate simulated conditions.
Loading...
