Magnetic-seeding filtration

T. Y. Ying, C. J. Chin, S. C. Lu, S. Yiacoumi, M. R. Chattin, M. A. Spurrier, D. W. DePaoli, C. Tsouris

Research output: Contribution to journalConference articlepeer-review

8 Scopus citations


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 languageEnglish
Pages (from-to)1371-1392
Number of pages22
JournalSeparation Science and Technology
Issue number6-7
StatePublished - 1999
EventProceedings of the 1997 10th Symposium on Separation Science and Technology for Energy Applications - Gatlinburg, TN, USA
Duration: 20 Oct 199724 Oct 1997


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