Title:
CLEANING TREATMENT OF RIVER WATER AND DEVICE THEREFOR
Document Type and Number:
Japanese Patent JP3676575
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To stably and efficiently clean contaminated water of a river.
SOLUTION: A cleaning device physically and biologically purifying contaminated water, in which a diffusion means 5 is added to a treating tank 1 utilizing physical action such as settlement and filtering, is installed, and the contaminated water from river is introduced into the device. When the temperature of the contaminated water is in the range higher than 15°C to 20°C, the aeration is stopped and a physical cleaning treatment is mainly performed, and when the temperature of the contaminated water is in the range lower than 15°C to 20°C, the aeration is performed to mainly perform the physical and biological treatment.
Inventors:
Atsushi Suda
Shinji Abe
Toru Kimura
Kazuhiro Shinabe
Shinji Abe
Toru Kimura
Kazuhiro Shinabe
Application Number:
JP18827898A
Publication Date:
July 27, 2005
Filing Date:
June 18, 1998
Export Citation:
Assignee:
Director, Kanto Regional Development Bureau, Ministry of Land, Infrastructure, Transport and Tourism
River Environmental Management Foundation
Kubota Corporation
River Environmental Management Foundation
Kubota Corporation
International Classes:
C02F3/06; B01D24/46; C02F1/00; C02F3/12; (IPC1-7): C02F3/12; B01D24/46; C02F1/00; C02F3/06
Domestic Patent References:
| JP9187783A | ||||
| JP6377593A | ||||
| JP9253687A |
Attorney, Agent or Firm:
Keiji Nemoto
Hiroshi Mitani
Kiyoyasu Hatagawa
Shigeru Uematsu
Hiroshi Mitani
Kiyoyasu Hatagawa
Shigeru Uematsu