JPS567691A - Discarding method for sludge in activated sludge method waste water treating system - Google Patents
Discarding method for sludge in activated sludge method waste water treating systemInfo
- Publication number
- JPS567691A JPS567691A JP8277779A JP8277779A JPS567691A JP S567691 A JPS567691 A JP S567691A JP 8277779 A JP8277779 A JP 8277779A JP 8277779 A JP8277779 A JP 8277779A JP S567691 A JPS567691 A JP S567691A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- waste water
- constituents
- bod
- activated sludge
- 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)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
PURPOSE: To inprove the quality of treated water, in the treatment of waste water using activated sludge for treating BOD constituents and ammoniacal nitrogen, by considering discarded sludge to the total amount of retained sludge to be a function of liq. temp. of an aeration tank to activate microorganisms in the system.
CONSTITUTION: In the treatment of waste water by an activated sludge method for removing BOD constituents and converting ammoniacal nitrogen into nitrate nitrogen, the ratio of the amount of excess sludge discarded per day to the amount of sludge retained is adjusted to the 0.007t-0.025W0.004t-0.03 range when liq. temp. of an aeration tank is t°C. Thus, the operational conditions of the system are maintained well, preventing deterioration of bacteria and activating microorganisms in the system, whereby the removal of BOD constituents and the conversion of ammoniacal nitrogen into nitrate nitrogen are performed stably to improve the quality of treated water.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8277779A JPS567691A (en) | 1979-06-30 | 1979-06-30 | Discarding method for sludge in activated sludge method waste water treating system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8277779A JPS567691A (en) | 1979-06-30 | 1979-06-30 | Discarding method for sludge in activated sludge method waste water treating system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS567691A true JPS567691A (en) | 1981-01-26 |
Family
ID=13783846
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8277779A Pending JPS567691A (en) | 1979-06-30 | 1979-06-30 | Discarding method for sludge in activated sludge method waste water treating system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS567691A (en) |
-
1979
- 1979-06-30 JP JP8277779A patent/JPS567691A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2338248A1 (en) | Process for the treatment of waste water containing ammonia | |
ES8503630A1 (en) | Waste water treatment. | |
JPS5389259A (en) | Process for biologically denitrification of organic waste water | |
Robinson | Microbiological aspects of aerobically treated swine waste | |
JPS567691A (en) | Discarding method for sludge in activated sludge method waste water treating system | |
JPS5544332A (en) | Control method of activated sludge water treating apparatus | |
JPS5385947A (en) | Method of treating waste liquid containing nitrogen compounds | |
FR2337576A2 (en) | Waste water purificn. via anaerobic biological filter - for denitrification of water after activated sludge treatment | |
JPS5413665A (en) | Process for treating organic waste water | |
JPS5397260A (en) | Treatment of waste water in use of active medium | |
JPS5613094A (en) | High degree treating method of organic waste water | |
JPS5342451A (en) | Process for purifying organic waste water | |
JPS5528759A (en) | Treating method of high concentration organic waste water | |
JPS55167095A (en) | Treatment of waste water | |
FR2400489A1 (en) | Biological purification of waste water - includes oxygenation, degradation, nitrification and denitrification steps | |
JPS55147197A (en) | Treating method for sewage | |
JPS5268755A (en) | Process for biological treatment of denitrification | |
JPS565181A (en) | Treatment of organic waste water | |
JPS5535986A (en) | Biological denitrification of leachate from waste dumping site | |
JPS55147196A (en) | Treatment process for waste water by activated sludge method | |
JPS55162397A (en) | Treatment of org. waste liquid | |
JPS565185A (en) | Treatment of waste water of low biochemical oxygen demand | |
JPS5771699A (en) | Treating method for organic waste liquid | |
JPS53130860A (en) | Method of completely removing nitrogen contained in waste water | |
JPS55119495A (en) | Treating method for waste water containing lignin |