JPS57110385A - Sewage treating method - Google Patents

Sewage treating method

Info

Publication number
JPS57110385A
JPS57110385A JP55185776A JP18577680A JPS57110385A JP S57110385 A JPS57110385 A JP S57110385A JP 55185776 A JP55185776 A JP 55185776A JP 18577680 A JP18577680 A JP 18577680A JP S57110385 A JPS57110385 A JP S57110385A
Authority
JP
Japan
Prior art keywords
cycle
inflow
sewage
precipitation
tank
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP55185776A
Other languages
Japanese (ja)
Other versions
JPS5930158B2 (en
Inventor
Noboru Hayakawa
Shigeru Inami
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nishihara Environment Co Ltd
Original Assignee
Nishihara Environmental Sanitation Research Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nishihara Environmental Sanitation Research Corp filed Critical Nishihara Environmental Sanitation Research Corp
Priority to JP55185776A priority Critical patent/JPS5930158B2/en
Publication of JPS57110385A publication Critical patent/JPS57110385A/en
Publication of JPS5930158B2 publication Critical patent/JPS5930158B2/en
Expired legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

Landscapes

  • Activated Sludge Processes (AREA)

Abstract

PURPOSE: To enable to easily cope with variations in the amount of inflow while using a tank of a fixed capacity by a method wherein the period of time required for one cycle of aeration, precipitation and supernatant discharge is shortened and the number of cycles is increased when treating a large amount of inflow, in a process of treating sewage by an activated sludge through continuous inflow and discharge.
CONSTITUTION: A plurality of cycle patterns are provided, and the treatment of sewage is controlled by selecting a suitable one of the cycles through a control panel 10 provided on the outside of a tank 1. The cycle patterns include a 6hr cycle consisting in conducting aeration for 4.5hr, precipitation for 1hr and supernatant discharge for 0.5hr, as shown in pattern diagram (a), and a 3hr cycle consisting in conducting aeration for 1.5hr, precipitation for 1hr and supernatant discharge for 0.5hr, as shown in pattern diagram (b). In the 3hr cycle, an upper marginal volume V' of the interior of the tank 1 can be utilized two times as much as that in the case of the 6hr cycle and, accordingly, sewage can be treated even when the inflow amount is doubled.
COPYRIGHT: (C)1982,JPO&Japio
JP55185776A 1980-12-27 1980-12-27 How to treat sewage Expired JPS5930158B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55185776A JPS5930158B2 (en) 1980-12-27 1980-12-27 How to treat sewage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55185776A JPS5930158B2 (en) 1980-12-27 1980-12-27 How to treat sewage

Publications (2)

Publication Number Publication Date
JPS57110385A true JPS57110385A (en) 1982-07-09
JPS5930158B2 JPS5930158B2 (en) 1984-07-25

Family

ID=16176684

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55185776A Expired JPS5930158B2 (en) 1980-12-27 1980-12-27 How to treat sewage

Country Status (1)

Country Link
JP (1) JPS5930158B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60183083A (en) * 1984-02-29 1985-09-18 Nishihara Environ Sanit Res Corp Sewage treatment apparatus
JPS6137293U (en) * 1984-08-07 1986-03-07 株式会社 西原環境衛生研究所 Scum discharge device
JPS61115194U (en) * 1984-12-29 1986-07-21

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6417555U (en) * 1987-07-22 1989-01-27

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60183083A (en) * 1984-02-29 1985-09-18 Nishihara Environ Sanit Res Corp Sewage treatment apparatus
JPH049599B2 (en) * 1984-02-29 1992-02-20
JPS6137293U (en) * 1984-08-07 1986-03-07 株式会社 西原環境衛生研究所 Scum discharge device
JPH027672Y2 (en) * 1984-08-07 1990-02-23
JPS61115194U (en) * 1984-12-29 1986-07-21
JPH0248079Y2 (en) * 1984-12-29 1990-12-17

Also Published As

Publication number Publication date
JPS5930158B2 (en) 1984-07-25

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