JPS5570400A - Sludge dehydrating method - Google Patents
Sludge dehydrating methodInfo
- Publication number
- JPS5570400A JPS5570400A JP14308378A JP14308378A JPS5570400A JP S5570400 A JPS5570400 A JP S5570400A JP 14308378 A JP14308378 A JP 14308378A JP 14308378 A JP14308378 A JP 14308378A JP S5570400 A JPS5570400 A JP S5570400A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- disposal installation
- screw press
- thereafter
- compositing
- 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 dehydrate the sludge to reduce a water content thereof to below a specific value by a mechanism wherein a high molecular flocculating agent and saw ducts are mixed with the digested sludge treated by digestion which is generated from a sewage disposal installation or a body waste disposal installation and thereafter introduced into a screw press apparatus equipped with a heating apparatus therein.
CONSTITUTION: The digested sludge treated by digestion which is generated from a sewage disposal installation or a body wastes disposal installation is introduced into a mixing tank 1 and mixed with a cationic organic high molecular flocculating agent and saw dusts. Thereafter, the obtained mixture is introduced into a screw press apparatus 2 wherein a steam is introduced into a screw barrel and the sludge can be dehydrated under heating. In this, screw press apparatus, the sludge is dehydrated to reduce the water content thereof to below 60% and thereafter is introduced into a compositing apparatus 4 to be subjected to a compositing treatment. This method enables the reduction of a dehydrating apparatus compared to a filter press or a vacuum filter method and the energy consumption is low compared to a hot air drying because the screw press and the compositing operation are combined.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14308378A JPS5570400A (en) | 1978-11-20 | 1978-11-20 | Sludge dehydrating method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14308378A JPS5570400A (en) | 1978-11-20 | 1978-11-20 | Sludge dehydrating method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5570400A true JPS5570400A (en) | 1980-05-27 |
Family
ID=15330509
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14308378A Pending JPS5570400A (en) | 1978-11-20 | 1978-11-20 | Sludge dehydrating method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5570400A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS608000A (en) * | 1983-06-27 | 1985-01-16 | Ebara Infilco Co Ltd | Treatment of organic sludge |
JPS6048199A (en) * | 1983-08-29 | 1985-03-15 | Kurita Water Ind Ltd | Sludge dehydrator |
KR100313455B1 (en) * | 1998-12-19 | 2003-03-15 | 노수홍 | Livestock Wastewater Treatment Method Using Membrane Process |
JP2006000766A (en) * | 2004-06-18 | 2006-01-05 | Ebara Corp | Sludge dehydration method |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50157967A (en) * | 1974-06-13 | 1975-12-20 | ||
JPS5257080A (en) * | 1975-11-06 | 1977-05-11 | Nippon Kayaku Co Ltd | Dehydration method of sludge |
-
1978
- 1978-11-20 JP JP14308378A patent/JPS5570400A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50157967A (en) * | 1974-06-13 | 1975-12-20 | ||
JPS5257080A (en) * | 1975-11-06 | 1977-05-11 | Nippon Kayaku Co Ltd | Dehydration method of sludge |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS608000A (en) * | 1983-06-27 | 1985-01-16 | Ebara Infilco Co Ltd | Treatment of organic sludge |
JPH0224598B2 (en) * | 1983-06-27 | 1990-05-30 | Ebara Infilco | |
JPS6048199A (en) * | 1983-08-29 | 1985-03-15 | Kurita Water Ind Ltd | Sludge dehydrator |
JPH02120B2 (en) * | 1983-08-29 | 1990-01-05 | Kurita Water Ind Ltd | |
KR100313455B1 (en) * | 1998-12-19 | 2003-03-15 | 노수홍 | Livestock Wastewater Treatment Method Using Membrane Process |
JP2006000766A (en) * | 2004-06-18 | 2006-01-05 | Ebara Corp | Sludge dehydration method |
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