JPS6490100A - Method for dehydrating sludge - Google Patents
Method for dehydrating sludgeInfo
- Publication number
- JPS6490100A JPS6490100A JP62248753A JP24875387A JPS6490100A JP S6490100 A JPS6490100 A JP S6490100A JP 62248753 A JP62248753 A JP 62248753A JP 24875387 A JP24875387 A JP 24875387A JP S6490100 A JPS6490100 A JP S6490100A
- Authority
- JP
- Japan
- Prior art keywords
- org
- high molecular
- molecular flocculant
- sludge
- filtration chamber
- 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 increase the filtration rate and to decrease the water content in dehydrated cake by controlling the solid matter load of the sludge to be forced into a filtration chamber to 10-200kg per unit area (m<2>) of the filtration chamber. CONSTITUTION:Sludge is flocculated by an org. high molecular flocculant, forced into the filtration chamber of a filter press, compressed therein, and dehydrated. In this method, the solid matter content in the sludge to be forced into the filtration chamber is increased, and dehydration is performed at a relatively low pressure. Concretely, the solid matter load is set to 100-200kg/m<2>. As org. high molecular flocculant and an inorg. flocculant are jointly used for the flocculation. The composition contg. a cationic org. high molecular flocculant, an anionic org. high molecular flocculant not contg. a strong acid group, and an acid is used as the org. high molecular flocculant. By this method, the filtration rate is increased, and the water content in the dehydrated cake can be decreased.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62248753A JPS6490100A (en) | 1987-10-01 | 1987-10-01 | Method for dehydrating sludge |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62248753A JPS6490100A (en) | 1987-10-01 | 1987-10-01 | Method for dehydrating sludge |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6490100A true JPS6490100A (en) | 1989-04-05 |
Family
ID=17182861
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62248753A Pending JPS6490100A (en) | 1987-10-01 | 1987-10-01 | Method for dehydrating sludge |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6490100A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0520698A2 (en) * | 1991-06-26 | 1992-12-30 | Shinko Pantec Co., Ltd. | Method of electroosmotically dehydrating sludge |
-
1987
- 1987-10-01 JP JP62248753A patent/JPS6490100A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0520698A2 (en) * | 1991-06-26 | 1992-12-30 | Shinko Pantec Co., Ltd. | Method of electroosmotically dehydrating sludge |
US5279718A (en) * | 1991-06-26 | 1994-01-18 | Shinko Pantec Co., Ltd. | Method of electroosmotically dehydrating sludge |
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