JPS5531440A - Method and apparatus for melting and solidifying sludge - Google Patents
Method and apparatus for melting and solidifying sludgeInfo
- Publication number
- JPS5531440A JPS5531440A JP10454278A JP10454278A JPS5531440A JP S5531440 A JPS5531440 A JP S5531440A JP 10454278 A JP10454278 A JP 10454278A JP 10454278 A JP10454278 A JP 10454278A JP S5531440 A JPS5531440 A JP S5531440A
- Authority
- JP
- Japan
- Prior art keywords
- metals
- molten material
- sludge
- temperature
- waste gas
- 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 prevent a second pollution by catching waste gas dust containing metals of a sludge-melting furnace in a molten material to melt the metals, cooling and solidifying the metals present in sludge to form insoluble metals, said molten material being maintained at a predetermined temperature by controlling means.
CONSTITUTION: Sludge containing Cr, copper, etc. is molten by an arc furnace 1, and introduced through a coupling part 3 into a melting chamber 4. The temperature is maintained by a detector 7, a temperature controlling device 8 and a burner 9 at a temperature of above a boiling point of the molten material and below boiling points of the oxides of metals present in the collected dust. Waste gas from the furnace 1 is collected in a waste gas treating apparatus 11, passed through a supply line 14, catched in said molten material, flows out from a discharge part 6, and is cooled and solidified to form a glassy solid. Since the metals in the dust turn into network-forming ions and is solidified, there is no danger of a second pollution caused by elution due to rain water at reclaiming time. It is not necessary to solidify the metals with a large amount of cement.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10454278A JPS5531440A (en) | 1978-08-28 | 1978-08-28 | Method and apparatus for melting and solidifying sludge |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10454278A JPS5531440A (en) | 1978-08-28 | 1978-08-28 | Method and apparatus for melting and solidifying sludge |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5531440A true JPS5531440A (en) | 1980-03-05 |
Family
ID=14383370
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10454278A Pending JPS5531440A (en) | 1978-08-28 | 1978-08-28 | Method and apparatus for melting and solidifying sludge |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5531440A (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4952214A (en) * | 1972-09-16 | 1974-05-21 | ||
JPS4963268A (en) * | 1972-10-20 | 1974-06-19 | ||
JPS5025475A (en) * | 1973-07-09 | 1975-03-18 | ||
JPS50136969A (en) * | 1974-04-18 | 1975-10-30 |
-
1978
- 1978-08-28 JP JP10454278A patent/JPS5531440A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4952214A (en) * | 1972-09-16 | 1974-05-21 | ||
JPS4963268A (en) * | 1972-10-20 | 1974-06-19 | ||
JPS5025475A (en) * | 1973-07-09 | 1975-03-18 | ||
JPS50136969A (en) * | 1974-04-18 | 1975-10-30 |
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