JPS56121699A - Sludge disposer - Google Patents
Sludge disposerInfo
- Publication number
- JPS56121699A JPS56121699A JP2432780A JP2432780A JPS56121699A JP S56121699 A JPS56121699 A JP S56121699A JP 2432780 A JP2432780 A JP 2432780A JP 2432780 A JP2432780 A JP 2432780A JP S56121699 A JPS56121699 A JP S56121699A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- tank
- aerating
- alkalinity
- chemicals
- 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
- Treatment Of Sludge (AREA)
Abstract
PURPOSE: To enable to reduce the alkalinity of sludge in the secondary treatment of septic tank sludge so that the adding amount of chemicals may be minimized, by installing an aerating tank and a device supplying chemicals for adjusting pH of aerated sludge.
CONSTITUTION: The sludge of septic tank is put into receiving tank 1 and reserved in reserving tank 2. The sludge pulled out from tank 2 is aerated at aerating tank 6. After aerating for a prescribed time, chemicals, such as sulfuric acid, etc., is added to the sludge at chemical supplying device 4 to improve dehydrating property and then the sludge is dehydrated at dehydrator 3. The filtrate separated in this stage is secondarily disposed at active sludge disposing tank 5. By aerating the septic tank sludge for an adequate time in tank 6, the NH4 + which controls the alkalinity is changed into NO3 - by bacterial oxidizing reaction and thus the alkalinity is lowered.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2432780A JPS56121699A (en) | 1980-02-27 | 1980-02-27 | Sludge disposer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2432780A JPS56121699A (en) | 1980-02-27 | 1980-02-27 | Sludge disposer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56121699A true JPS56121699A (en) | 1981-09-24 |
Family
ID=12135077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2432780A Pending JPS56121699A (en) | 1980-02-27 | 1980-02-27 | Sludge disposer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56121699A (en) |
-
1980
- 1980-02-27 JP JP2432780A patent/JPS56121699A/en active Pending
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