Magnetic-seeding filtration

Conference · Wed Oct 01 04:00:00 EDT 1997

OSTI ID:552753

Ying, T Y; Chin, C J; Lu, S C; Yiacoumi, S ^[1]

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1. Georgia Institute of Technology, Atlanta, GA (United States). School of Civil and Environmental Engineering; and others

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 (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. 35 refs., 7 figs., 1 tab.

• Research Organization: Oak Ridge National Lab., TN (United States)
• Sponsoring Organization: USDOE Office of Environmental Restoration and Waste Management, Washington, DC (United States)
• DOE Contract Number: AC05-96OR22464
• OSTI ID: 552753
• Report Number(s): ORNL/CP--94960; CONF-9710103--; ON: DE98001054
• Country of Publication: United States
• Language: English

Related Subjects

05 NUCLEAR FUELS
FLOCCULATION
FLOW RATE
MAGNETIC FIELD CONFIGURATIONS
MAGNETIC FILTERS
MAGNETIC SEPARATORS
PARAMETRIC ANALYSIS
PERFORMANCE TESTING
RADIOACTIVE WASTE PROCESSING
RADIOACTIVE WASTES