JPS55165200A - Treatment of sludge - Google Patents
Treatment of sludgeInfo
- Publication number
- JPS55165200A JPS55165200A JP7362479A JP7362479A JPS55165200A JP S55165200 A JPS55165200 A JP S55165200A JP 7362479 A JP7362479 A JP 7362479A JP 7362479 A JP7362479 A JP 7362479A JP S55165200 A JPS55165200 A JP S55165200A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- caco
- electrolysis
- drying
- water
- 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 facilitate dehydration of sludge and promote drying thereof by adding a fluoride and CaCO3 to the sludge followed by electrolysis.
CONSTITUTION: A plurality of Al anode plates 1 and Cu cathode plates 2 are alternately arranged in electrolytic cell 6. Sludge is allowed to flow into cell 6 from inlet 7, and after adding a fluoride such as CaF2 the sludge is passed between plates 1, 2 being supplied with an electric current. HF is formed by electrolysis in the vicinity of each anode 1, and by the dehydrating action of HF bound water in the sludge is deprived to form a fibrous substance. CaCO3 which becomes crystals forming dipoles to the sludge of Na2CO3 anc CaCl2 which react with each other to form CaCO3 are then added to cell 6 to continue the electrolysis. the polarity of the crystalline portion of the fibrous substance in the sludge and the polarity of the CaCO3 compensate each other, forming CaCO3 crystals, so the sludge is made slightly water soluble. the treated sludge is taken out of outlet 8 and put in drying promoting vessel 9, where drying of the sludge is promoted by adding CaO, CaO.SiO2 or the like which absorbs a substance such as methanol constituting the wetness of org. or inorg. structure in the sludge or wetness constituting water as hydrating water.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7362479A JPS55165200A (en) | 1979-06-11 | 1979-06-11 | Treatment of sludge |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7362479A JPS55165200A (en) | 1979-06-11 | 1979-06-11 | Treatment of sludge |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55165200A true JPS55165200A (en) | 1980-12-23 |
Family
ID=13523649
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7362479A Pending JPS55165200A (en) | 1979-06-11 | 1979-06-11 | Treatment of sludge |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55165200A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58180299A (en) * | 1982-04-16 | 1983-10-21 | Masakuni Kanai | Production of material for civil engineering and construction |
JPS62258800A (en) * | 1986-05-06 | 1987-11-11 | Ishigaki Kiko Kk | Treatment of organic substance sludge |
CN103241758A (en) * | 2013-05-17 | 2013-08-14 | 崔岷 | Method of producing calcium fluoride through bottom mud generated by fluoride waste |
-
1979
- 1979-06-11 JP JP7362479A patent/JPS55165200A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58180299A (en) * | 1982-04-16 | 1983-10-21 | Masakuni Kanai | Production of material for civil engineering and construction |
JPS62258800A (en) * | 1986-05-06 | 1987-11-11 | Ishigaki Kiko Kk | Treatment of organic substance sludge |
CN103241758A (en) * | 2013-05-17 | 2013-08-14 | 崔岷 | Method of producing calcium fluoride through bottom mud generated by fluoride waste |
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