Continuous superconducting-magnet filtration system

Author

Saho, N. ; Isogami, H. ; Takagi, T. ; Morita, M.

Author_Institution

Mech. Eng. Res. Lab., Hitachi Ltd., Tsuchiura, Japan

Volume

9

Issue

2

fYear

1999

fDate

6/1/1999 12:00:00 AM

Firstpage

398

Lastpage

401

Abstract

We developed a new water purification system using a continuous superconducting-magnet filtration system that removes phytoplankton. The system consists of twin-type magnets with a helium refrigerator: a reciprocating magnetic main filter, and a rotating magnetic sub-filter. This system removes phytoplankton from lake water by separating coagulated magnetic flocks with the magnetic filters. The filters can be continuously cleaned and regenerated under low magnetic fields while flocks are being separated under high magnetic fields. This system removed more than 93% of the phytoplankton from lake water at flow rates of 400 m/sup 3//day.

Keywords

magnetic fields; superconducting magnets; water treatment; coagulated magnetic flocks; helium refrigerator; high magnetic fields; low magnetic fields; phytoplankton removal; reciprocating magnetic main filter; rotating magnetic sub-filter; superconducting-magnet filtration system; twin-type magnets; water purification system; Filtration; Lakes; Magnetic fields; Magnetic separation; Particle separators; Purification; Refrigeration; Superconducting filters; Superconducting magnets;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.783319

Filename

783319