High Gradient Magnetic Separation (HGMS) is an application of superconducting magnet technology to the separation of magnetic solids from other solids, liquids, or gases. The production of both high magnetic fields (>4 T) and large field gradients using superconducting magnet technology has made it possible to separate a previously unreachable but large family of paramagnetic materials. This is a powerful technique that can be used to separate widely dispersed contaminants from a host material and may be the only technique available for separating material in the colloidal state. Because it is a physical separation process, no additional waste is generated. We are applying this technology to the treatment of radioactive wastes for environmental remediation. We have conducted tests examining slurries containing nonradioactive, magnetic surrogates. Results from these studies were used to verify our analytical model of the separation process. The model describes the rate process for magnetic separation and is based on a force balance on the paramagnetic species. This model was used to support bench scale experiments and prototype separator design.
CITATION STYLE
Prenger, F. C., Stewart, W. F., Hill, D. D., Avens, L. R., Worl, L. A., Schake, A., … Tolt, T. L. (1994). High Gradient Magnetic Separation Applied to Environmental Remediation. In Advances in Cryogenic Engineering (pp. 485–491). Springer US. https://doi.org/10.1007/978-1-4615-2522-6_58
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