CN102039021A - Method for treating fly ash by using manganese dioxide - Google Patents
Method for treating fly ash by using manganese dioxide Download PDFInfo
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- CN102039021A CN102039021A CN2009102354546A CN200910235454A CN102039021A CN 102039021 A CN102039021 A CN 102039021A CN 2009102354546 A CN2009102354546 A CN 2009102354546A CN 200910235454 A CN200910235454 A CN 200910235454A CN 102039021 A CN102039021 A CN 102039021A
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- manganese dioxide
- flying dust
- fly ash
- reaction
- organic
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Abstract
Te invention discloses a method for treating fly ash by using manganese dioxide. Manganese dioxide is used as a degrading agent for organic pollutants such as dioxins in the fly ash. Manganese dioxide is crushed and dried, the particle size of the crushed manganese dioxide is between 50 and 1,000 micrometers, the manganese dioxide is mixed with the fly ash, the mixture is filled in a reaction device, the manganese dioxide reacts with the organic pollutants such as dioxins in the fly ash in a temperature range of above 200 DEG C to degrade the organic pollutants such as dioxins in the fly ash, and thus, the fly ash can be treated and disposed.
Description
Technical field
The present invention relates to the application that a kind of manganese dioxide is used to pollute control, relate in particular to the application of a kind of manganese dioxide aspect flying dust processing disposal.
Background technology
In the process that castoff burning is disposed, burning process inevitably produces organic pollutions such as dioxin, and these organic pollutions remain in and burn in the flying dust that produces.Flying dust need be handled disposal as hazardous waste, and existing stabilizing fly ash technology is disposed comparative maturity to the heavy metal in the flying dust, but also lacks mature technique for the organic pollutions such as dioxin in the flying dust.
Be the organic pollutions such as dioxin in the degraded flying dust, prior art is carried out immobilization by the method for high-temperature fusion to flying dust, yet reaction temperature generally need be about 1300 degree, and energy consumption is high, and severe reaction conditions makes the flying dust processing cost become very high.
Summary of the invention
The object of the present invention is to provide a kind of method of utilizing manganese dioxide to handle flying dust, the organic pollutions such as dioxin in the flying dust of can degrading effectively.
For achieving the above object, the method for utilizing manganese dioxide to handle flying dust provided by the invention is:
Adopt the degradation agent of manganese dioxide as organic pollution (mainly being the dioxin organic matter in the flying dust), manganese dioxide is mixed with flying dust, in 200-900 ℃ (preferred reaction temperature is 400-500 ℃) reaction 1-60 minute (the preferred reaction time is about 20 minutes) down, the organic pollution in the degraded flying dust.When concrete the use, manganese dioxide is made the graininess of 50-1000 micron.When reacting, the volume ratio between manganese dioxide and the flying dust does not have too strict restriction, can be controlled at 1 substantially: between the 3-6.The present invention adopts the reaction unit that can heat to react.
The flying dust of handling through the present invention, with after other heavy metal stabilization technology combines, flying dust can be used as the raw material of producing cement or haydite, thereby has realized the processing disposal and the resource of flying dust again.
The specific embodiment
The present invention utilizes the degradation agent of manganese dioxide as organic pollutions such as dioxins in the flying dust.In use, earlier with manganese dioxide pulverizing, drying, make its particle diameter between the 50-1000 micron, mix with flying dust and to be positioned in the reaction unit, in the temperature range more than 200 ℃ with flying dust in organic pollutions such as dioxin have an effect, organic pollutions such as dioxin in the degraded flying dust, thus flying dust is handled disposal.
By the embodiment that narrates below, can further understanding be arranged to the present invention.
In the airtight heating reactor of routine, manganese dioxide and the flying dust that crushes mixed according to 1: 5 ratio of volume ratio, after mixing that reactor is airtight, added thermal response 30 minutes at 500 degree, after stopping, reaction opens reactor.Organic pollutions such as the dioxin in flying dust degradation rate under the effect of manganese dioxide has surpassed 95%, other organic pollution such as halogenated phenols, halogeno-benzene have all obtained degraded in the flying dust simultaneously, degradation efficiency has surpassed 90%, and reacted flying dust is recycling further.
Need to prove that reaction unit of the present invention all can utilize known equipment to carry out, the embodiment that the present invention provides has promptly adopted known heating reactor to carry out.
Claims (7)
1. a method of utilizing manganese dioxide to handle flying dust with the degradation agent of manganese dioxide as organic pollution, is mixed manganese dioxide with flying dust, reacts 1-60 minute the organic pollution in the degraded flying dust down in 200-900 ℃.
2. the method for claim 1, wherein manganese dioxide is the graininess of 50-1000 micron.
3. the method for claim 1, wherein the volume ratio of manganese dioxide and flying dust is 1: 3-6.
4. the method for claim 1, wherein reaction temperature is 400-500 ℃.
5. the method for claim 1, wherein the reaction time is 15-25 minute.
6. the method for claim 1, wherein reaction is to carry out in the reaction unit that can heat.
7. the method for claim 1, wherein organic pollution is a dioxin organic matter in the flying dust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102354546A CN102039021A (en) | 2009-10-14 | 2009-10-14 | Method for treating fly ash by using manganese dioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102354546A CN102039021A (en) | 2009-10-14 | 2009-10-14 | Method for treating fly ash by using manganese dioxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102039021A true CN102039021A (en) | 2011-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102354546A Pending CN102039021A (en) | 2009-10-14 | 2009-10-14 | Method for treating fly ash by using manganese dioxide |
Country Status (1)
| Country | Link |
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| CN (1) | CN102039021A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112604226A (en) * | 2021-01-18 | 2021-04-06 | 姜钧奇 | Method for removing aldehyde and dissociating dioxaanthracene and analogues thereof by treating hazardous waste polyhydric alcohol through manganese RNA (ribonucleic acid) enzyme-assisted polymerase |
| CN112979190A (en) * | 2021-02-09 | 2021-06-18 | 北京科技大学 | Method for catalytically treating waste incineration fly ash by utilizing electrolytic manganese residues |
-
2009
- 2009-10-14 CN CN2009102354546A patent/CN102039021A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112604226A (en) * | 2021-01-18 | 2021-04-06 | 姜钧奇 | Method for removing aldehyde and dissociating dioxaanthracene and analogues thereof by treating hazardous waste polyhydric alcohol through manganese RNA (ribonucleic acid) enzyme-assisted polymerase |
| CN112979190A (en) * | 2021-02-09 | 2021-06-18 | 北京科技大学 | Method for catalytically treating waste incineration fly ash by utilizing electrolytic manganese residues |
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| PB01 | Publication | ||
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Application publication date: 20110504 |