Title:
WATER TREATMENT METHOD AND APPARATUS USING FISH
Document Type and Number:
WIPO Patent Application WO/2005/044741
Kind Code:
A1
Abstract:
It is intended to provide a water treatment method and an apparatus therefor wherein the generation of micrometazoans such as chironomid can be inhibited without using any insecticide in a septic tank into which sewage having been treated to a high extent flows. A treatment apparatus for eliminating micrometazoans generating in treated sewage in a septic tank into which the sewage having been treated to a high extent and sterilized flows, wherein fish preying on the micrometazoans in the treated water are fed in the septic tank at such a density as allowing continuous survival thereof, and the septic tank is provided with a lighting window and/or lighting facilities for subjecting the fish to light. It is favorable that the water treatment apparatus has a filtration unit for filtering the treated water flowing out from the septic tank.
Inventors:
KOBAYASHI ATSUSHI (JP)
FUCHU YUICHI (JP)
SAWAI KENJI (JP)
SHINJO YASUKO (JP)
SOEDA SINYA (JP)
TAKEUCHI TOSHIO (JP)
FUCHU YUICHI (JP)
SAWAI KENJI (JP)
SHINJO YASUKO (JP)
SOEDA SINYA (JP)
TAKEUCHI TOSHIO (JP)
Application Number:
PCT/JP2004/016742
Publication Date:
May 19, 2005
Filing Date:
November 11, 2004
Export Citation:
Assignee:
EBARA CORP (JP)
PRESIDENT OF TOKYO UNIVERSITY (JP)
KOBAYASHI ATSUSHI (JP)
FUCHU YUICHI (JP)
SAWAI KENJI (JP)
SHINJO YASUKO (JP)
SOEDA SINYA (JP)
TAKEUCHI TOSHIO (JP)
PRESIDENT OF TOKYO UNIVERSITY (JP)
KOBAYASHI ATSUSHI (JP)
FUCHU YUICHI (JP)
SAWAI KENJI (JP)
SHINJO YASUKO (JP)
SOEDA SINYA (JP)
TAKEUCHI TOSHIO (JP)
International Classes:
A01K61/00; A01K63/04; A01K63/06; (IPC1-7): C02F3/32; A01K63/04
Foreign References:
| JPH07100488A | 1995-04-18 | |||
| JP2002066585A | 2002-03-05 | |||
| JPH06327375A | 1994-11-29 | |||
| JP2000015233A | 2000-01-18 |
Other References:
KOBAYASHI A. ET AL.: "Gesuido kodo shorisui no sairiyo ni okeru yusurika hassei ni taisuru bojo gijutsu no kento (dai 1 ho)", DAI 40 KAI GESUIDO KENKYU HAPPYOKAI, 23 July 2003 (2003-07-23), pages 481 - 483, XP002987047
HIRABAYASHI K. ET AL.: "Kosho ni okeru yusurika-rui no setai to bojo ni kansuru kenkyu", JAPANESE JOURNAL OF ENVIRONMENTAL ENTOMOLOGY AND ZOOLOGY, vol. 10, no. 1/2, March 1999 (1999-03-01), pages 51 - 62, XP002987048
HIRABAYASHI K. ET AL.: "Kosho ni okeru yusurika-rui no setai to bojo ni kansuru kenkyu", JAPANESE JOURNAL OF ENVIRONMENTAL ENTOMOLOGY AND ZOOLOGY, vol. 10, no. 1/2, March 1999 (1999-03-01), pages 51 - 62, XP002987048
Attorney, Agent or Firm:
Shamoto, Ichio (Section 206 New Ohtemachi Bldg., 2-1,
Ohtemachi 2-chome, Chiyoda-k, Tokyo 04, JP)
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