Title:
汚水処理装置
Document Type and Number:
Japanese Patent JP7023608
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a sewage treatment apparatus that can reduce power consumption of a blowing device.SOLUTION: A sewage treatment apparatus has: a blowing device 4 for aeration that supplies sewage with air; a first oxygen amount detector 5A that detects an amount of oxygen dissolved in the sewage after supplied with the air by the blowing device 4; a second oxygen amount detector 5B that detects an amount of oxygen dissolved in the sewage before supplied with the air by the blowing device 4; and a control device 7 that controls operation of the blowing device 4. The control device 7 changes or maintains an amount of the air supplied to the sewage using a control parameter based on a difference between a first detection amount DO1 detected by the first oxygen amount detector 5A and a second detection amount DO2 detected by the second oxygen amount detector 5B.SELECTED DRAWING: Figure 1
Inventors:
Kazunori Kawasaki
Jira Fukuda
Takashi Tanaka
Katsutaka Kaneko
Jira Fukuda
Takashi Tanaka
Katsutaka Kaneko
Application Number:
JP2017062805A
Publication Date:
February 22, 2022
Filing Date:
March 28, 2017
Export Citation:
Assignee:
Ntt Facilities Co., Ltd.
International Classes:
C02F3/12
Domestic Patent References:
| JP11128976A | ||||
| JP2005052804A | ||||
| JP5038497A |
Foreign References:
| WO2013133443A1 | ||||
| US4159243 |
Attorney, Agent or Firm:
Nagoya International Patent Service Corporation