JPS5712876A - Method for melting treatment of electrically collected ash - Google Patents
Method for melting treatment of electrically collected ashInfo
- Publication number
- JPS5712876A JPS5712876A JP8714880A JP8714880A JPS5712876A JP S5712876 A JPS5712876 A JP S5712876A JP 8714880 A JP8714880 A JP 8714880A JP 8714880 A JP8714880 A JP 8714880A JP S5712876 A JPS5712876 A JP S5712876A
- Authority
- JP
- Japan
- Prior art keywords
- ash
- alkali
- heavy metals
- hydroxides
- electrically collected
- 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 fix noxious heavy metals into a solidified slag by a method wherein the electrically collected ash is treated with an alkali to form hydroxides of heavy metals and the hydroxides are melted together with slag components.
CONSTITUTION: The electrically collected ash 31 is placed in a tank 34 together with an alkali 32 such as sodium hydroxide, slaked lime, etc. and water 33 for dissolving them, and is alkali-treated. Upon the alkali treatment, the soluble heavy metals contained in the ash are converted into hydroxides, and the resulting slurry 35 is fed to a filter 36 to separate it into a filtrate 37 and a mixed cake 38 containing the slag components and the heavy metal hydroxides. The cake 38 is charged into a melting furnace 42, solely or as a mixture with a main incinerated ash 41. In the furnace 41, the slag components are converted into a stable vitreous or crystalline solid mass in which the heavy metals are fixed. By treating the electrically collected ash in this way, problems concenrning the disposal of the ash are solved.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8714880A JPS5712876A (en) | 1980-06-26 | 1980-06-26 | Method for melting treatment of electrically collected ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8714880A JPS5712876A (en) | 1980-06-26 | 1980-06-26 | Method for melting treatment of electrically collected ash |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5712876A true JPS5712876A (en) | 1982-01-22 |
Family
ID=13906885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8714880A Pending JPS5712876A (en) | 1980-06-26 | 1980-06-26 | Method for melting treatment of electrically collected ash |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5712876A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01177492A (en) * | 1987-12-28 | 1989-07-13 | Aisan Ind Co Ltd | Wesco type pump mechanism |
| JP2007024058A (en) * | 2005-07-12 | 2007-02-01 | Sekisui Chem Co Ltd | Butterfly valve |
| CN111780128A (en) * | 2019-04-03 | 2020-10-16 | 四川轻化工大学 | Alkali metal slag removing device |
-
1980
- 1980-06-26 JP JP8714880A patent/JPS5712876A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01177492A (en) * | 1987-12-28 | 1989-07-13 | Aisan Ind Co Ltd | Wesco type pump mechanism |
| JP2007024058A (en) * | 2005-07-12 | 2007-02-01 | Sekisui Chem Co Ltd | Butterfly valve |
| CN111780128A (en) * | 2019-04-03 | 2020-10-16 | 四川轻化工大学 | Alkali metal slag removing device |
| CN111780128B (en) * | 2019-04-03 | 2022-10-28 | 四川轻化工大学 | Alkali metal slag removing device |
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