TY - JOUR
T1 - Magnetic separation technique for groundwater by five HTS melt-processed bulk magnets arranged in a line
AU - Oka, T.
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.
PY - 2011/11/1
Y1 - 2011/11/1
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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U2 - 10.1016/j.physc.2011.05.226
DO - 10.1016/j.physc.2011.05.226
M3 - Article
AN - SCOPUS:80054982429
VL - 471
SP - 1506
EP - 1510
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - 21-22
ER -