JPS5732791A - Treatment of waste water - Google Patents
Treatment of waste waterInfo
- Publication number
- JPS5732791A JPS5732791A JP10767080A JP10767080A JPS5732791A JP S5732791 A JPS5732791 A JP S5732791A JP 10767080 A JP10767080 A JP 10767080A JP 10767080 A JP10767080 A JP 10767080A JP S5732791 A JPS5732791 A JP S5732791A
- Authority
- JP
- Japan
- Prior art keywords
- treatment
- paddles
- waste water
- aerator
- 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.)
- Pending
Links
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
PURPOSE: To suppress proliferation of aerobic bacteria and prevent filamentous bulking by providing slow speed paddles in a loop type waste water treatment tank, and intermittently operating an aertor through alternately operating the paddles and the aerator.
CONSTITUTION: Aeration treatment of waste water is carried out by using a loop type waste water treatment tank 1, and alternately operating paddles 4 and an aerator 3 or intermittently operating the aerator 3 while revolving the paddles 4. The processing is repeated so that the entire part of the mixed liquid in the tank becomes an aerobic state and an anaerobic state at suitable time intervals. In this way, ammonia is mainly nitrified in the aerobic state, and is succession to this, denitification bacterium groups are activated in the anaerobic state that takes place in the same tank, whereby nitric acid is decomposed. Thereby, dentrification operation treatment is accomplished at low maintenance costs in a large scale sewage treatment system, and the treatment of ≥70% denitrification rate is stably accomplished by the simple operations.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10767080A JPS5732791A (en) | 1980-08-07 | 1980-08-07 | Treatment of waste water |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10767080A JPS5732791A (en) | 1980-08-07 | 1980-08-07 | Treatment of waste water |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5732791A true JPS5732791A (en) | 1982-02-22 |
Family
ID=14465017
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10767080A Pending JPS5732791A (en) | 1980-08-07 | 1980-08-07 | Treatment of waste water |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5732791A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61125493A (en) * | 1984-11-22 | 1986-06-13 | Nippon Kokan Kk <Nkk> | Treatment of organic waste water |
JPS61125491A (en) * | 1984-11-22 | 1986-06-13 | Nippon Kokan Kk <Nkk> | Treatment of organic waste water |
CN115072876A (en) * | 2022-07-20 | 2022-09-20 | 长春工程学院 | Method for inhibiting filamentous bacterium sludge bulking through sectional water inflow and application thereof |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5115557B1 (en) * | 1971-05-10 | 1976-05-18 | ||
JPS5574861A (en) * | 1978-12-01 | 1980-06-05 | Mitsubishi Petrochemical Co | Wrapping film |
JPS56117651A (en) * | 1980-02-22 | 1981-09-16 | Asahi Chemical Ind | Laminated inflation film for heavy packing bag and its manufacture |
-
1980
- 1980-08-07 JP JP10767080A patent/JPS5732791A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5115557B1 (en) * | 1971-05-10 | 1976-05-18 | ||
JPS5574861A (en) * | 1978-12-01 | 1980-06-05 | Mitsubishi Petrochemical Co | Wrapping film |
JPS56117651A (en) * | 1980-02-22 | 1981-09-16 | Asahi Chemical Ind | Laminated inflation film for heavy packing bag and its manufacture |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61125493A (en) * | 1984-11-22 | 1986-06-13 | Nippon Kokan Kk <Nkk> | Treatment of organic waste water |
JPS61125491A (en) * | 1984-11-22 | 1986-06-13 | Nippon Kokan Kk <Nkk> | Treatment of organic waste water |
CN115072876A (en) * | 2022-07-20 | 2022-09-20 | 长春工程学院 | Method for inhibiting filamentous bacterium sludge bulking through sectional water inflow and application thereof |
CN115072876B (en) * | 2022-07-20 | 2023-12-08 | 长春工程学院 | Method for inhibiting filamentous fungus sludge expansion by segmented water inflow and application thereof |
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