JPS56168873A - Treatment of electrical dust precipitation ash - Google Patents
Treatment of electrical dust precipitation ashInfo
- Publication number
- JPS56168873A JPS56168873A JP7390480A JP7390480A JPS56168873A JP S56168873 A JPS56168873 A JP S56168873A JP 7390480 A JP7390480 A JP 7390480A JP 7390480 A JP7390480 A JP 7390480A JP S56168873 A JPS56168873 A JP S56168873A
- Authority
- JP
- Japan
- Prior art keywords
- heavy metal
- ashes
- residues
- metal ions
- heavy
- 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
- 239000000428 dust Substances 0.000 title abstract 4
- 238000001556 precipitation Methods 0.000 title abstract 4
- 229910001385 heavy metal Inorganic materials 0.000 abstract 7
- 235000002918 Fraxinus excelsior Nutrition 0.000 abstract 4
- 239000002956 ash Substances 0.000 abstract 4
- 150000002500 ions Chemical class 0.000 abstract 4
- 238000010828 elution Methods 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 abstract 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 238000004898 kneading Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 150000004692 metal hydroxides Chemical class 0.000 abstract 1
- 238000005554 pickling Methods 0.000 abstract 1
- 239000002893 slag Substances 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
PURPOSE: To treat electrical dust precipitation ashes while surely preventing the elution of harmful heavy metals by pickling said ashes, dividing these to residues and a soln. contg. heavy metal ions, separating the heavy metal ions by settling then melting and solidifying the same.
CONSTITUTION: Ashes 21 generated by the electric dust precipitation are pickled, and are separated to residues 22 and a soln. contg. heavy metal ions 23. The residues 22 are put into a storage tank 29 after washing, and the soln. 23 is subjected to alkali treatment in a settling tank 31. Thereby, the heavy metal ions are settled as heavy metal hydroxide 39. This heavy metallic hydroxide 39 is separated and is kneaded together with a fusing agent 12 with part of the residues 22 in a kneading machine 42. Then, the heavy metallic hydroxide is fixed in glassy or crystalline slag in the form of oxide and sulfide. In this way, the elution of the harmful heavy metals is surely prevented, and ashes of the electrical dust precipitation are treated at a low cost with a less amount of discharge water.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55073904A JPS6052876B2 (en) | 1980-06-02 | 1980-06-02 | How to dispose of electrostatically collected ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55073904A JPS6052876B2 (en) | 1980-06-02 | 1980-06-02 | How to dispose of electrostatically collected ash |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56168873A true JPS56168873A (en) | 1981-12-25 |
| JPS6052876B2 JPS6052876B2 (en) | 1985-11-21 |
Family
ID=13531636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55073904A Expired JPS6052876B2 (en) | 1980-06-02 | 1980-06-02 | How to dispose of electrostatically collected ash |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6052876B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018148870A1 (en) * | 2017-02-14 | 2018-08-23 | 深圳市能源环保有限公司 | In-line heavy metal detection and solid waste dehazardization method |
| CN111040819A (en) * | 2018-10-12 | 2020-04-21 | 国家能源投资集团有限责任公司 | Ash removal method for solid carbonaceous material |
-
1980
- 1980-06-02 JP JP55073904A patent/JPS6052876B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018148870A1 (en) * | 2017-02-14 | 2018-08-23 | 深圳市能源环保有限公司 | In-line heavy metal detection and solid waste dehazardization method |
| CN111040819A (en) * | 2018-10-12 | 2020-04-21 | 国家能源投资集团有限责任公司 | Ash removal method for solid carbonaceous material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6052876B2 (en) | 1985-11-21 |
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