Title:
【発明の名称】排水処理方法及びその装置
Document Type and Number:
Japanese Patent JP2976272
Kind Code:
B2
Abstract:
PURPOSE:To improve the quality of treated water in accordance with the inflow of waste water such as sewage, reduce the power cost for the aeration in treating activated sludge and the output of sludge and make the device compact. CONSTITUTION:A high-speed filter 10 and a biological treating device 12 are organically combined. When the inflow of the waste water is less than the allowable capacity of the biological treating device 12, the waste water is filtered by the high-speed filter 10 at the rate of <=400m/day, and the whole amt. of the treated water is sent to the biological treating device 12. When the inflow of waste water is more than the allowable capacity of the device 12, a flocculant is added to the waste water, the waste water is filtered by the filter 10 at the rate of 400-1000m/day, the filtered water in the amt. corresponding to the allowable capacity is sent to the treating device 12, and the remaining filtered water is discharged outside the system.
Inventors:
FUNAKOSHI TAIJI
KOJIMA MASAYUKI
KAWAJIRI HITOSHI
YAMAMOTO HIROBUMI
NOTO KAZUHIKO
MORI NAOMICHI
KOJIMA MASAYUKI
KAWAJIRI HITOSHI
YAMAMOTO HIROBUMI
NOTO KAZUHIKO
MORI NAOMICHI
Application Number:
JP8347394A
Publication Date:
November 10, 1999
Filing Date:
April 21, 1994
Export Citation:
Assignee:
HITACHI PURANTO KENSETSU KK
TOKYOTO
TOKYOTO
International Classes:
C02F3/06; C02F3/10; C02F3/30; (IPC1-7): C02F3/30; C02F3/06; C02F3/10
Domestic Patent References:
| JP6296991A | ||||
| JP6038094A | ||||
| JP61220792A | ||||
| JP6099394A | ||||
| JP60166098A | ||||
| JP639368A | ||||
| JP4367798A | ||||
| JP4171007A |
Attorney, Agent or Firm:
Kenzo Matsuura