JPS57135094A - Method of caking sludge with cement - Google Patents
Method of caking sludge with cementInfo
- Publication number
- JPS57135094A JPS57135094A JP1997081A JP1997081A JPS57135094A JP S57135094 A JPS57135094 A JP S57135094A JP 1997081 A JP1997081 A JP 1997081A JP 1997081 A JP1997081 A JP 1997081A JP S57135094 A JPS57135094 A JP S57135094A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- water content
- cement
- dewatered
- filter press
- 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
Abstract
PURPOSE: To efficiently cake sludge with cement, while inhibiting deterioration of treatment derived from the presence of salty content, by preremoving the salty content from sludge containing noxious heavy metals, and then caking the sludge with cement.
CONSTITUTION: Heavy metal-treated slurry sludge 4 having a salt concentration of 15wt% is concentrated in a thickener 1 and fed as concentrated sludge 5 to a filter press 2. The sludge having a water content of 98wt% is dewatered into a state having a water content of 60wt% by the filter press 2. The dewatered sludge 6 is mixed with clear water 10 by a mixing crusher 9 and converted into uniform high water content sludge. The uniform high water content sludge 11 is returned to the filter press 2 and dewatered into a state having a water content of about 60wt% again. The said treatment is repeated one or more times. Thus, dewatered sludge 6a, whose salt concentration is lowered, is fed to a cement- caking apparatus 3.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1997081A JPS57135094A (en) | 1981-02-13 | 1981-02-13 | Method of caking sludge with cement |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1997081A JPS57135094A (en) | 1981-02-13 | 1981-02-13 | Method of caking sludge with cement |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57135094A true JPS57135094A (en) | 1982-08-20 |
Family
ID=12014044
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1997081A Pending JPS57135094A (en) | 1981-02-13 | 1981-02-13 | Method of caking sludge with cement |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57135094A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117387328A (en) * | 2023-12-12 | 2024-01-12 | 山东河清化工科技有限公司 | Green and efficient sea mud drying equipment and drying method |
-
1981
- 1981-02-13 JP JP1997081A patent/JPS57135094A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117387328A (en) * | 2023-12-12 | 2024-01-12 | 山东河清化工科技有限公司 | Green and efficient sea mud drying equipment and drying method |
CN117387328B (en) * | 2023-12-12 | 2024-02-06 | 山东河清化工科技有限公司 | Green and efficient sea mud drying equipment and drying method |
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