JPS5719078A - Disposal of fly ash - Google Patents
Disposal of fly ashInfo
- Publication number
- JPS5719078A JPS5719078A JP9261080A JP9261080A JPS5719078A JP S5719078 A JPS5719078 A JP S5719078A JP 9261080 A JP9261080 A JP 9261080A JP 9261080 A JP9261080 A JP 9261080A JP S5719078 A JPS5719078 A JP S5719078A
- Authority
- JP
- Japan
- Prior art keywords
- fly ash
- ammonia
- ash
- water
- exhaust 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
- 239000010881 fly ash Substances 0.000 title abstract 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 8
- 229910021529 ammonia Inorganic materials 0.000 abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 4
- 239000002956 ash Substances 0.000 abstract 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract 2
- 239000003513 alkali Substances 0.000 abstract 2
- 235000019738 Limestone Nutrition 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 abstract 1
- 239000000920 calcium hydroxide Substances 0.000 abstract 1
- 235000011116 calcium hydroxide Nutrition 0.000 abstract 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 abstract 1
- 239000000292 calcium oxide Substances 0.000 abstract 1
- 235000012255 calcium oxide Nutrition 0.000 abstract 1
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 239000006028 limestone Substances 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- 238000001179 sorption measurement Methods 0.000 abstract 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
PURPOSE: To remove ammonia content from fly ash with high efficiency, by adding water to fly ash which was modified by addition of an alkali so that the pH of a solution prepared by dissolving 1g of the ash in 100ml of water will be 10 or higher, and deaerating the fly ash.
CONSTITUTION: An alkali 3, e,g., quick lime, slaked lime, limestone or the like, is added to fly ash to modify the ash so that the pH of its aqueous solution obtained by adding 1g of the ash to 100ml of water will be 10 or higher. The fly ash is then introduced into a reactor 3, where it is mixed and reacted with water under an agitating condition to liberate ammonia. Ammonia-contg. exhaust gas is introduced through a pipe line 8 into a ammonia recovery tower 5, where the ammonia content is separated by adsorption before the exhaust gas is discharged into the air, or reused as a reducing agent to be fed to the exhaust gas-feed line 11 of an ammonia- reducing denitrifier 10.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9261080A JPS5719078A (en) | 1980-07-09 | 1980-07-09 | Disposal of fly ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9261080A JPS5719078A (en) | 1980-07-09 | 1980-07-09 | Disposal of fly ash |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5719078A true JPS5719078A (en) | 1982-02-01 |
Family
ID=14059198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9261080A Pending JPS5719078A (en) | 1980-07-09 | 1980-07-09 | Disposal of fly ash |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5719078A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57122986A (en) * | 1981-01-26 | 1982-07-31 | Mitsubishi Heavy Ind Ltd | Treatment of coal ash |
| JPH05116933A (en) * | 1990-12-21 | 1993-05-14 | Martin Gmbh Fuer Umwelt & Energietech | Process for recovering or removing ammonia or ammonium compound from dust mixture or ablution water |
| JPH05116934A (en) * | 1990-12-21 | 1993-05-14 | Martin Gmbh Fuer Umwelt & Energietech | Process for recovering ammonia or ammonium compound from mixed dust or process for removing its dangerousness |
| WO2000050123A1 (en) * | 1999-02-24 | 2000-08-31 | Separation Technologies, Inc. | Method for removing ammonia from ammonia contaminated fly ash |
| US6790264B2 (en) | 2000-03-08 | 2004-09-14 | Isg Resources, Inc. | Control of ammonia emission from ammonia laden fly ash in concrete |
| CN111014228A (en) * | 2019-10-31 | 2020-04-17 | 华能国际电力股份有限公司大连电厂 | Device and method for removing ammonia from boiler fly ash |
| CN111410211A (en) * | 2020-04-23 | 2020-07-14 | 苏州固利环保科技有限公司 | Sintering machine head ash filtrate deamination treatment method |
| JPWO2020184392A1 (en) * | 2019-03-08 | 2021-10-28 | 住友精化株式会社 | Water-absorbent resin particles and their manufacturing method |
-
1980
- 1980-07-09 JP JP9261080A patent/JPS5719078A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57122986A (en) * | 1981-01-26 | 1982-07-31 | Mitsubishi Heavy Ind Ltd | Treatment of coal ash |
| JPH05116933A (en) * | 1990-12-21 | 1993-05-14 | Martin Gmbh Fuer Umwelt & Energietech | Process for recovering or removing ammonia or ammonium compound from dust mixture or ablution water |
| JPH05116934A (en) * | 1990-12-21 | 1993-05-14 | Martin Gmbh Fuer Umwelt & Energietech | Process for recovering ammonia or ammonium compound from mixed dust or process for removing its dangerousness |
| WO2000050123A1 (en) * | 1999-02-24 | 2000-08-31 | Separation Technologies, Inc. | Method for removing ammonia from ammonia contaminated fly ash |
| US6790264B2 (en) | 2000-03-08 | 2004-09-14 | Isg Resources, Inc. | Control of ammonia emission from ammonia laden fly ash in concrete |
| JPWO2020184392A1 (en) * | 2019-03-08 | 2021-10-28 | 住友精化株式会社 | Water-absorbent resin particles and their manufacturing method |
| CN111014228A (en) * | 2019-10-31 | 2020-04-17 | 华能国际电力股份有限公司大连电厂 | Device and method for removing ammonia from boiler fly ash |
| CN111410211A (en) * | 2020-04-23 | 2020-07-14 | 苏州固利环保科技有限公司 | Sintering machine head ash filtrate deamination treatment method |
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