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Title:
PHOTOCATALYST BODY AND WATER PURIFICATION EQUIPMENT
Document Type and Number:
Japanese Patent JP2004136199
Kind Code:
A
Abstract:

To provide a photocatalyst body which decomposes polluted substances in a polluted water with a high efficiency and carries out solid-liquid separation easily, and also to provide water purification equipment using the same.

The photocatalyst material 1 comprises a photocatalyst particle 2 which enters an excited state by light and promotes chemical reaction by supplying energy to other particles without changing itself, and a magnetic material 3 to be magnetized in a magnetic field. The photocatalyst body 1 is formed into a superfine grain with a diameter of approximately several nms to several hundred nms, a so-called 0-dimensional nanomaterial, and its surface area per a unit area is enlarged. When these photocatalyst bodys 1 are fed into the polluted water and then irradiated with light, the photocatalyst particle 2 absorbs the light and enters an excited state and organic polluted substances or fats in the polluted water are decomposed at its surface. The photocatalyst body 1 remaining in purified water in which the polluted water is purified has the magnetic material 3, thus the magnetic material 3 is easily separated from the purified water by passing through a magnetic filter to form a magnetic field.


Inventors:
NACHI HIROSHI
TANAKA ISAO
NAKATSUJI TERUYUKI
NUMATA SHIGEO
HORIUCHI SUMIO
KIKUCHI TAKAMASA
TAZAKI MASAHARU
NAKAMURA TAKUJI
YOSHIDA JUN
MORITA TAKESHI
FUKASE YUTARO
URANO SHINJI
TAKASE TOSHINORI
Application Number:
JP2002303049A
Publication Date:
May 13, 2004
Filing Date:
October 17, 2002
Export Citation:
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Assignee:
SHIMIZU CONSTRUCTION CO LTD
International Classes:
B01J33/00; B01J35/02; B03C1/00; C02F1/72; C02F1/32; (IPC1-7): C02F1/32; B01J33/00; B01J35/02; B03C1/00; C02F1/72
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama