Application of HTS bulk magnet system to the magnetic separation techniques for water purification

T. Oka, H. Kanayama, S. Fukui, J. Ogawa, T. Sato, M. Ooizumi, T. Terasawa, Y. Itoh, R. Yabuno

研究成果: Article

26 引用 (Scopus)

抜粋

We have investigated the application of the HTS bulk magnets to the magnetic separation techniques for the waste water drained from the university laboratories. The study has been conducted in comparison with the electromagnets, and the cryo-cooled superconducting solenoid magnet. A superconducting bulk magnet has the highest value of the trapped magnetic fields at the centre of the sample surface, showing a sharp gradient of the magnetic field on the surface. Magnetic force acting on magnetic particles in magnetic fields is given by the product of a magnetization of particles and a gradient of magnetic field. The HTS bulk is superior to a solenoid magnet which has a poor gradient in magnetic fields in a bore. The separation ratios of ferrite precipitates in the waste slurry were estimated by means of the high gradient magnetic separation method which requires iron filters in the water channel and open gradient magnetic separation without any filters. The magnetic separation using HTS bulk magnet is substantially effective for the practical water purification.

元の言語English
ページ(範囲)2128-2132
ページ数5
ジャーナルPhysica C: Superconductivity and its applications
468
発行部数15-20
DOI
出版物ステータスPublished - 2008 9 15
外部発表Yes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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    Oka, T., Kanayama, H., Fukui, S., Ogawa, J., Sato, T., Ooizumi, M., Terasawa, T., Itoh, Y., & Yabuno, R. (2008). Application of HTS bulk magnet system to the magnetic separation techniques for water purification. Physica C: Superconductivity and its applications, 468(15-20), 2128-2132. https://doi.org/10.1016/j.physc.2008.05.234