Magnetic separation technique for groundwater by five HTS melt-processed bulk magnets arranged in a line

T. Oka; H. Seki; T. Kimura; D. Mimura; S. Fukui; J. Ogawa; T. Sato; M. Ooizumi; H. Fujishiro; H. Hayashi; K. Yokoyama; C. Stiehler

doi:10.1016/j.physc.2011.05.226

Magnetic separation technique for groundwater by five HTS melt-processed bulk magnets arranged in a line

T. Oka, H. Seki, T. Kimura, D. Mimura, S. Fukui, J. Ogawa, T. Sato, M. Ooizumi, H. Fujishiro, H. Hayashi, K. Yokoyama, C. Stiehler

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

A magnetic separation study for groundwater purification has been practically conducted by using the multi-pole magnet system. The magnetic pole was composed of 10 open magnetic spaces by arranging five HTS melt-processed bulk magnets in a line in a vacuum sheath. The individual bulk magnets were activated by feeding intense pulsed magnetic fields up to 6 T. The magnetic field distribution was estimated with respect to various pole arrangements. The actual groundwater samples of Sanjo City were processed so as to form large precipitates by adding the coagulant and pH controlling. The maximum separation ratio of the iron-bearing precipitates has exceeded over 70% when slurry water was exposed to 10 magnetic poles of up to 2.5 T at a flowing rate of less than 4.8 l/min. An obvious attraction of flocks to the magnetic poles was observed even when the water contains no magnetite powder at the flow rate of 1.01 l/min. This implies the validity of the multi-pole magnet system with respect to the actual application to water purification.

Original language	English
Pages (from-to)	1506-1510
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	471
Issue number	21-22
DOIs	https://doi.org/10.1016/j.physc.2011.05.226
Publication status	Published - 2011 Nov
Externally published	Yes

Keywords

Bulk superconductor
Magnetic field generator
Magnetic separation
Trapped field magnet

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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10.1016/j.physc.2011.05.226

Cite this

Oka, T., Seki, H., Kimura, T., Mimura, D., Fukui, S., Ogawa, J., Sato, T., Ooizumi, M., Fujishiro, H., Hayashi, H., Yokoyama, K., & Stiehler, C. (2011). Magnetic separation technique for groundwater by five HTS melt-processed bulk magnets arranged in a line. Physica C: Superconductivity and its applications, 471(21-22), 1506-1510. https://doi.org/10.1016/j.physc.2011.05.226

Oka, T, Seki, H, Kimura, T, Mimura, D, Fukui, S, Ogawa, J, Sato, T, Ooizumi, M, Fujishiro, H, Hayashi, H, Yokoyama, K & Stiehler, C 2011, 'Magnetic separation technique for groundwater by five HTS melt-processed bulk magnets arranged in a line', Physica C: Superconductivity and its applications, vol. 471, no. 21-22, pp. 1506-1510. https://doi.org/10.1016/j.physc.2011.05.226

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abstract = "A magnetic separation study for groundwater purification has been practically conducted by using the multi-pole magnet system. The magnetic pole was composed of 10 open magnetic spaces by arranging five HTS melt-processed bulk magnets in a line in a vacuum sheath. The individual bulk magnets were activated by feeding intense pulsed magnetic fields up to 6 T. The magnetic field distribution was estimated with respect to various pole arrangements. The actual groundwater samples of Sanjo City were processed so as to form large precipitates by adding the coagulant and pH controlling. The maximum separation ratio of the iron-bearing precipitates has exceeded over 70% when slurry water was exposed to 10 magnetic poles of up to 2.5 T at a flowing rate of less than 4.8 l/min. An obvious attraction of flocks to the magnetic poles was observed even when the water contains no magnetite powder at the flow rate of 1.01 l/min. This implies the validity of the multi-pole magnet system with respect to the actual application to water purification.",

keywords = "Bulk superconductor, Magnetic field generator, Magnetic separation, Trapped field magnet",

author = "T. Oka and H. Seki and T. Kimura and D. Mimura and S. Fukui and J. Ogawa and T. Sato and M. Ooizumi and H. Fujishiro and H. Hayashi and K. Yokoyama and C. Stiehler",

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doi = "10.1016/j.physc.2011.05.226",

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AU - Seki, H.

AU - Kimura, T.

AU - Mimura, D.

AU - Fukui, S.

AU - Ogawa, J.

AU - Sato, T.

AU - Ooizumi, M.

AU - Fujishiro, H.

AU - Hayashi, H.

AU - Yokoyama, K.

AU - Stiehler, C.

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N2 - A magnetic separation study for groundwater purification has been practically conducted by using the multi-pole magnet system. The magnetic pole was composed of 10 open magnetic spaces by arranging five HTS melt-processed bulk magnets in a line in a vacuum sheath. The individual bulk magnets were activated by feeding intense pulsed magnetic fields up to 6 T. The magnetic field distribution was estimated with respect to various pole arrangements. The actual groundwater samples of Sanjo City were processed so as to form large precipitates by adding the coagulant and pH controlling. The maximum separation ratio of the iron-bearing precipitates has exceeded over 70% when slurry water was exposed to 10 magnetic poles of up to 2.5 T at a flowing rate of less than 4.8 l/min. An obvious attraction of flocks to the magnetic poles was observed even when the water contains no magnetite powder at the flow rate of 1.01 l/min. This implies the validity of the multi-pole magnet system with respect to the actual application to water purification.

AB - A magnetic separation study for groundwater purification has been practically conducted by using the multi-pole magnet system. The magnetic pole was composed of 10 open magnetic spaces by arranging five HTS melt-processed bulk magnets in a line in a vacuum sheath. The individual bulk magnets were activated by feeding intense pulsed magnetic fields up to 6 T. The magnetic field distribution was estimated with respect to various pole arrangements. The actual groundwater samples of Sanjo City were processed so as to form large precipitates by adding the coagulant and pH controlling. The maximum separation ratio of the iron-bearing precipitates has exceeded over 70% when slurry water was exposed to 10 magnetic poles of up to 2.5 T at a flowing rate of less than 4.8 l/min. An obvious attraction of flocks to the magnetic poles was observed even when the water contains no magnetite powder at the flow rate of 1.01 l/min. This implies the validity of the multi-pole magnet system with respect to the actual application to water purification.

KW - Bulk superconductor

KW - Magnetic field generator

KW - Magnetic separation

KW - Trapped field magnet

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Magnetic separation technique for groundwater by five HTS melt-processed bulk magnets arranged in a line

Abstract

Keywords

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