CN103523874A - Preparation method of modified fly ash - Google Patents
Preparation method of modified fly ash Download PDFInfo
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- CN103523874A CN103523874A CN201310475211.6A CN201310475211A CN103523874A CN 103523874 A CN103523874 A CN 103523874A CN 201310475211 A CN201310475211 A CN 201310475211A CN 103523874 A CN103523874 A CN 103523874A
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- fly ash
- modified fly
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- ethanol
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Abstract
The invention relates to a preparation method of a wastewater treatment matter, and discloses a preparation method of modified fly ash. The preparation method of the modified fly ash comprises the following steps: mixing 20g fly ash and 80mL an ethanol-water solution, adjusting to acid, stirring and heating up to 80 DEG C, using a constant pressure dropping funnel for slowly dripping a quaternary ammonium salt and ethanol mixed solution with the volume ratio of 1:9, after dropping is finished, beginning to time, performing suction filtration after a period of reaction, repeatedly washing a product with water, and drying for 10 h. The modified fly ash is repeatedly washed with the washing times being more than 10, the sterilization ratio of the modified fly ash is greater than 90%. Comparison of infrared images of the former and the later modified fly ash shows that a long chain alkyl group is grafted on the modified fly ash surface.
Description
Technical field
The present invention relates to a kind of preparation method of wastewater treatment thing.
Background technology
Flyash is the waste of coal-burning power plant's discharge, and the quantity discharged of the annual flyash of China has surpassed 200,000,000 t.At present, the utilization ratio of flyash only has 30%～40%, is mainly used for building material made, construction work, road engineering etc., still has compared with great development and utilizes space.Flyash is cheap, has again that particle is little, a porous, activity is high and adsorptivity is strong feature, usings its sorbent material as oily(waste)water, will obtain good economic benefit.
Summary of the invention
The present invention aims to provide a kind of preparation method with the modified coal ash of certain biocidal efficacies.
The preparation method of modified coal ash of the present invention, comprising:
20 g flyash and 80 mL ethanol-water solutions are mixed, be adjusted to acidity, stir and be warming up to 80 ℃, with the constant pressure funnel quaternary ammonium salt that slowly a certain amount of volume ratio of dropping is 1:9 and the mixed solution of ethanol, dropwise rear beginning timing, suction filtration after reaction for some time, product water repetitive scrubbing, dry 10 h.
Flyash after modification is carried out to repetitive scrubbing, washing times in 10 times, the sterilizing rate of modified coal ash > 90%.The infrared figure of flyash before and after contrast modification, can find out the surface grafting chain alkyl of flyash after modification.
Embodiment
Embodiment mono-
In the four-hole bottle that reflux and agitator are housed, add 20 g flyash and 80 mL ethanol-water solutions, and be adjusted to acidity with acetic acid.Stir and be warming up to 80 ℃, with constant pressure funnel, slowly drip quaternary ammonium salt that the volume ratio of 1mL is 1:9 and the mixed solution of ethanol.Dropwise rear beginning timing, suction filtration after 6 hours, product water repetitive scrubbing.Dry 10 h in air dry oven.
When regeneration temperature is 50 ℃, inoculum size 6%, recovery time while being 72 h, flyash regeneration rate can reach more than 90% waits.
Claims (1)
1. a preparation method for modified coal ash, is characterized in that comprising:
Flyash and ethanol-water solution are mixed, be adjusted to acidity, stir and be warming up to 80 ℃, with the constant pressure funnel quaternary ammonium salt that slowly a certain amount of volume ratio of dropping is 1:9 and the mixed solution of ethanol, dropwise rear beginning timing, suction filtration after reaction for some time, product water repetitive scrubbing, dry 10 h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310475211.6A CN103523874A (en) | 2013-10-13 | 2013-10-13 | Preparation method of modified fly ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310475211.6A CN103523874A (en) | 2013-10-13 | 2013-10-13 | Preparation method of modified fly ash |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103523874A true CN103523874A (en) | 2014-01-22 |
Family
ID=49926296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310475211.6A Pending CN103523874A (en) | 2013-10-13 | 2013-10-13 | Preparation method of modified fly ash |
Country Status (1)
| Country | Link |
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| CN (1) | CN103523874A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106311140A (en) * | 2016-09-08 | 2017-01-11 | 北京神雾环境能源科技集团股份有限公司 | Method for preparing water phenol removal agent from calcium carbide furnace gas dust and product of water phenol removal agent |
| CN106396052A (en) * | 2016-09-08 | 2017-02-15 | 北京神雾环境能源科技集团股份有限公司 | Method for preparing water phenol remover by using calcium carbide furnace gas dust and product prepared thereby |
| CN108993457A (en) * | 2018-07-27 | 2018-12-14 | 河北科技大学 | A method of adsorbent is prepared by raw material of flyash |
| CN109179573A (en) * | 2018-11-15 | 2019-01-11 | 刘益波 | A kind of inorganic agent and preparation method thereof can be used for handling sanitary sewage |
-
2013
- 2013-10-13 CN CN201310475211.6A patent/CN103523874A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106311140A (en) * | 2016-09-08 | 2017-01-11 | 北京神雾环境能源科技集团股份有限公司 | Method for preparing water phenol removal agent from calcium carbide furnace gas dust and product of water phenol removal agent |
| CN106396052A (en) * | 2016-09-08 | 2017-02-15 | 北京神雾环境能源科技集团股份有限公司 | Method for preparing water phenol remover by using calcium carbide furnace gas dust and product prepared thereby |
| CN108993457A (en) * | 2018-07-27 | 2018-12-14 | 河北科技大学 | A method of adsorbent is prepared by raw material of flyash |
| CN109179573A (en) * | 2018-11-15 | 2019-01-11 | 刘益波 | A kind of inorganic agent and preparation method thereof can be used for handling sanitary sewage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140122 |