JPS5684700A - Treatment method of purification vessel sludge - Google Patents
Treatment method of purification vessel sludgeInfo
- Publication number
- JPS5684700A JPS5684700A JP16001479A JP16001479A JPS5684700A JP S5684700 A JPS5684700 A JP S5684700A JP 16001479 A JP16001479 A JP 16001479A JP 16001479 A JP16001479 A JP 16001479A JP S5684700 A JPS5684700 A JP S5684700A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- flocculating agent
- purification vessel
- freezing
- added
- 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 independently treat sludge in a purification vessel without mixing the same with crude night soil by adding a flocculating agent to sludge in the purification vessel then subjecting the sludge to freeze-thaw treatment then filtering and dehydrating this.
CONSTITUTION: Sludge in the purification vessel is transferred into a flocculating vessel, and a flocculating agent is added thereto under stirring. Here, any of organic system, inorganic system and their combinations may be used for the flocculating agent, thence the sludge added with the flocculating agent is frozen. The freezing can be started immediately as far as the sludge is added with the flocculating agent but it is desirable for decreasing the driving power required for freezing to beforehand concentrate the sludge by allowing the solid in the sludge to sediment or float and removing the liquid part prior to the freezing. The sludge having been finished of the freeze-thawing is next subjected to filtration and dehydration processes. Any conventional method is practised for the filtration method.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16001479A JPS5684700A (en) | 1979-12-10 | 1979-12-10 | Treatment method of purification vessel sludge |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16001479A JPS5684700A (en) | 1979-12-10 | 1979-12-10 | Treatment method of purification vessel sludge |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5684700A true JPS5684700A (en) | 1981-07-10 |
Family
ID=15706104
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16001479A Pending JPS5684700A (en) | 1979-12-10 | 1979-12-10 | Treatment method of purification vessel sludge |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5684700A (en) |
-
1979
- 1979-12-10 JP JP16001479A patent/JPS5684700A/en active Pending
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