JPS56158197A - Treatment of kp drain by pure oxygen activated sludge method - Google Patents
Treatment of kp drain by pure oxygen activated sludge methodInfo
- Publication number
- JPS56158197A JPS56158197A JP6144580A JP6144580A JPS56158197A JP S56158197 A JPS56158197 A JP S56158197A JP 6144580 A JP6144580 A JP 6144580A JP 6144580 A JP6144580 A JP 6144580A JP S56158197 A JPS56158197 A JP S56158197A
- Authority
- JP
- Japan
- Prior art keywords
- activated sludge
- pure oxygen
- sludge method
- oxygen activated
- treatment
- 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
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)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
PURPOSE: To prevent biological activity blocking and effectively remove malodorous materials by subjecting the malodorous-material-contg. KP drain formed in a kraft pulp plant to a light degree of air oxidation then treating the same by a pure oxygen activated sludge method.
CONSTITUTION: After the malodorous-material-contg. KP drain formed in a kraft pulp plant is subjected to air oxidation by blowing a small amount of air for 3W4hr, it is treated by a pure oxygen activated sludge method. Thereby, the amount of hydrogen sulfide in the water after the treatment is kept at ≤50ppm in the value in terms of sulfur and the amount of methyl mercaptan at ≤25ppm in the value in terms of sulfur, and biological activity blocking is prevented.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6144580A JPS56158197A (en) | 1980-05-09 | 1980-05-09 | Treatment of kp drain by pure oxygen activated sludge method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6144580A JPS56158197A (en) | 1980-05-09 | 1980-05-09 | Treatment of kp drain by pure oxygen activated sludge method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56158197A true JPS56158197A (en) | 1981-12-05 |
Family
ID=13171262
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6144580A Pending JPS56158197A (en) | 1980-05-09 | 1980-05-09 | Treatment of kp drain by pure oxygen activated sludge method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56158197A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10842184B2 (en) | 2015-05-22 | 2020-11-24 | Philip Morris Products S.A. | Aerosol generating article having mouthpiece with surface formations and removable tipping wrapper portion |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5239960A (en) * | 1975-09-23 | 1977-03-28 | Toyo Pulp Kk | Method for treating stency sewage |
-
1980
- 1980-05-09 JP JP6144580A patent/JPS56158197A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5239960A (en) * | 1975-09-23 | 1977-03-28 | Toyo Pulp Kk | Method for treating stency sewage |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10842184B2 (en) | 2015-05-22 | 2020-11-24 | Philip Morris Products S.A. | Aerosol generating article having mouthpiece with surface formations and removable tipping wrapper portion |
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