Title:
生物学的水処理装置
Document Type and Number:
Japanese Patent JP4489990
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a biological water treatment equipment capable of efficiently controlling contaminant concentration after discharging treatment as a target value by setting a proper amount of air supply to mix water to be treated with the air so as to be cleaned even when a quantity of contaminant fluctuates in the water to be treated. SOLUTION: Air diffusers 41-44 are provided in the direction of flowing down the water to be treated in a biological reaction layer 1, and air supply devices 51-54 for supplying air are connected to each air diffuser 41-44, respectively. Furthermore, controllers 91-94 are connected to air supply device 51-54, respectively, and respective air supply amounts supplied from the air diffusers 41-44 connected to the controllers, respectively, are calculated by using an operation expression on the basis of values measured with a BOD concentration meter 2, a flowmeter 2 and a BOD concentration meter 10.
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Inventors:
Seiji Furukawa
Junji Hirotsuji
Hisao Tanaka
Junji Hirotsuji
Hisao Tanaka
Application Number:
JP2001127107A
Publication Date:
June 23, 2010
Filing Date:
April 25, 2001
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
C02F3/12
Domestic Patent References:
| JP4933465A | ||||
| JP539058A | ||||
| JP53148848A | ||||
| JP5712890A | ||||
| JP60102996A | ||||
| JP2000325980A | ||||
| JP6296987A | ||||
| JP57132593A | ||||
| JP58216785A | ||||
| JP1199694A | ||||
| JP4363197A | ||||
| JP60251995A |
Attorney, Agent or Firm:
Keigo Murakami
Masuo Oiwa
Toshihide Kodama
Takenaka Ikuo
Masuo Oiwa
Toshihide Kodama
Takenaka Ikuo