Study on magnetic separation system using high Tc superconducting bulk magnets for water purification technique

T. Oka, H. Kanayama, K. Tanaka, S. Fukui, J. Ogawa, T. Sato, M. Yamaguchi, M. Ooizumi, K. Yokoyama, K. Noto

研究成果: Article

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抜粋

The application of superconducting bulk magnets to the magnetic separation techniques has been investigated for the Mn-bearing waste water drained from the university laboratories. The research has been conducted in comparison with the electromagnets, and the cryo-cooled superconducting solenoid magnet. The separation ratios of ferrite precipitates including Mn element in the waste slurry were estimated by means of the high gradient magnetic separation method with ferromagnetic iron filters in the water channel and open gradient magnetic separation without them. As the magnetic force acting on the particles is given by the product of a magnetization of particles and a gradient of magnetic field, and a superconducting bulk magnet shows a sharp gradient of the magnetic field on the surface, the performances of the bulk magnet system were almost equivalent to those of the superconducting solenoid magnet with wide bore with respect to the magnetic separation ratios. The separation ratios for Mn have reached over 80 % for HGMS and 10 % for OGMS under the flow rates less than 3 liter/min.

元の言語English
記事番号012031
ジャーナルJournal of Physics: Conference Series
156
DOI
出版物ステータスPublished - 2009 1 1
外部発表Yes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Oka, T., Kanayama, H., Tanaka, K., Fukui, S., Ogawa, J., Sato, T., Yamaguchi, M., Ooizumi, M., Yokoyama, K., & Noto, K. (2009). Study on magnetic separation system using high Tc superconducting bulk magnets for water purification technique. Journal of Physics: Conference Series, 156, [012031]. https://doi.org/10.1088/1742-6596/156/1/012031