Title:
OPERATION OF SEPTIC TANK
Document Type and Number:
Japanese Patent JP3414609
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an operation method of a septic tank to reduce cost of electricity and prevent adverse effect to a biological treatment due to excessive aeration.
SOLUTION: In this device, an aeration device 10 for feeding an inside liquid in a tank against a membrane surface of a membrane device 2 in a cross-flow is intermittently driven, and also whether a transmission liquid 14 is discharged from the membrane device 2 at a driving time of the aeration device 10 or not, is detected, and then the aeration device 10 is switched to a continuous driving when discharge of the transmission liquid 14 is detected, and an intermittent driving of the aeration device 10 is continued, when discharge of the transmission liquid 14 is not detected.
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Inventors:
Kiyoshi Izumi
Yutaka Yamada
Lacquerer Masaharu
Yutaka Yamada
Lacquerer Masaharu
Application Number:
JP2988297A
Publication Date:
June 09, 2003
Filing Date:
February 14, 1997
Export Citation:
Assignee:
Kubota Corporation
International Classes:
B01D65/02; C02F1/44; C02F3/12; (IPC1-7): C02F1/44; B01D65/02; C02F3/12
Domestic Patent References:
| JP10156380A | ||||
| JP8141566A | ||||
| JP5185078A |
Attorney, Agent or Firm:
Yoshihiro Morimoto