Abstract
Magnetic-seeding filtration consists of two steps: heterogeneous particle flocculation of magnetic and nonmagnetic particles in a stirred tank and high-gradient magnetic filtration (HGMF). The effects of various parameters affecting magnetic-seeding filtration are theoretically and experimentally investigated. A trajectory model that includes hydrodynamic resistance, van der Waals, and electrostatic forces is developed to calculate the flocculation frequency in a turbulent-shear regime. Fractal dimension is introduced to simulate the open structure of aggregates. A magnetic- filtration model that consists of trajectory analysis, a particle build-up model, a breakthrough model, and a bivariate population-balance model is developed to predict the breakthrough curve of magnetic-seeding filtration. A good agreement between modeling results and experimental data is obtained. The results show that the model developed in this study can be used to predict the performance of magnetic-seeding filtration without using empirical coefficients or fitting parameters.
| Original language | English |
|---|---|
| Pages (from-to) | 1371-1392 |
| Number of pages | 22 |
| Journal | Separation Science and Technology |
| Volume | 34 |
| Issue number | 6-7 |
| DOIs | |
| State | Published - 1999 |
| Event | Proceedings of the 1997 10th Symposium on Separation Science and Technology for Energy Applications - Gatlinburg, TN, USA Duration: 20 Oct 1997 → 24 Oct 1997 |