JPS55157393A - Sludge freeze-dehydration equipment - Google Patents
Sludge freeze-dehydration equipmentInfo
- Publication number
- JPS55157393A JPS55157393A JP6598779A JP6598779A JPS55157393A JP S55157393 A JPS55157393 A JP S55157393A JP 6598779 A JP6598779 A JP 6598779A JP 6598779 A JP6598779 A JP 6598779A JP S55157393 A JPS55157393 A JP S55157393A
- Authority
- JP
- Japan
- Prior art keywords
- unit
- coagulant
- sludge
- freeze
- treated
- 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.)
- Granted
Links
Abstract
PURPOSE: To improve dehydration property, without adding a toxic chemical coagulant, to the same degree as its addition by removing cations from sludge to be treated.
CONSTITUTION: Before the step of a freeze-melt unit 4, is installed a cation remover unit 11 filled with H-type cation exchange resin, and a centrifugal or vacuum type dehydrator unit 5 is installed downstream. Thus, the installation of the cation exchange unit 11 before the freeze-melt unit 4 lowers pH of sludge to be treated and results in nearly the same dehydration effect as adding a coagulant. This provides dehydrated cake of low water content and not containing a toxic coagulant chemical.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6598779A JPS55157393A (en) | 1979-05-25 | 1979-05-25 | Sludge freeze-dehydration equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6598779A JPS55157393A (en) | 1979-05-25 | 1979-05-25 | Sludge freeze-dehydration equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55157393A true JPS55157393A (en) | 1980-12-08 |
JPS6126439B2 JPS6126439B2 (en) | 1986-06-20 |
Family
ID=13302865
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6598779A Granted JPS55157393A (en) | 1979-05-25 | 1979-05-25 | Sludge freeze-dehydration equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55157393A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102701561A (en) * | 2012-06-05 | 2012-10-03 | 江苏江达生态科技有限公司 | Quick drying method for sludge |
-
1979
- 1979-05-25 JP JP6598779A patent/JPS55157393A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102701561A (en) * | 2012-06-05 | 2012-10-03 | 江苏江达生态科技有限公司 | Quick drying method for sludge |
Also Published As
Publication number | Publication date |
---|---|
JPS6126439B2 (en) | 1986-06-20 |
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