CN104056605A - Grass fiber modified heavy metal adsorbent and preparation method thereof - Google Patents
Grass fiber modified heavy metal adsorbent and preparation method thereof Download PDFInfo
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- CN104056605A CN104056605A CN201410335421.XA CN201410335421A CN104056605A CN 104056605 A CN104056605 A CN 104056605A CN 201410335421 A CN201410335421 A CN 201410335421A CN 104056605 A CN104056605 A CN 104056605A
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Abstract
The invention aims at providing grass fiber modified heavy metal adsorbent and a preparation method thereof. In order to achieve the aim, the preparation method comprises the following steps: crushing and drying achnatherum splendens, taking a certain amount of grass meal, adding a small amount of water, adjusting the pH value to be 7.5-10.5 by a 0.1M sodium hydroxide solution, stirring for reacting at 20-30 DEG C for 60-80 minutes, then adding 30% hydrogen peroxide, reacting for 60 minutes, carrying out suction filtration after the reaction, washing, and drying to obtain the heavy metal adsorbent.
Description
Technical field
The present invention relates to heavy metal ion adsorbed field, be specifically related to adsorbent of a kind of modification grass fiber Adsorption of Heavy Metals and preparation method thereof.
Background technology
In recent years, along with industrialized fast development, the utilization of heavy metal is more and more extensive, and incident heavy metal pollution problem is also more and more serious.
The contamination accident of frequent outburst can be destroyed the normal physiological metabolism activity of organism, even produces " three cause " (carcinogenic, teratogenesis, mutagenesis) material, and very harmful to organism even affects several generations.Growing with each passing day of heavy metal burden caused countries in the world environment scholars' extensive concern with harmfulness, and heavy metal treatment technology becomes scientist's study hotspot.
There is technique relative complex in existing traditional heavy metal treatment technology, it is high to consume energy, easily produce secondary pollution problems.Particularly at processing low content heavy metal polluted waste water, make its operating cost relative with the cost of raw material too high.
Summary of the invention
The object of this invention is to provide adsorbent of a kind of modification grass fiber Adsorption of Heavy Metals and preparation method thereof.Overcome the condition harshness that prior art exists, the shortcoming that cost is high.
For achieving the above object, the technical solution used in the present invention is as follows:
Splendid achnatherum is pulverized, dried, get a certain amount of grass meal, add little water, with the sodium hydroxide solution of 0.1M, pH value is adjusted in to 7.5-10.5, stirring reaction 60-80 minute under 20-30 degree, then add 30% hydrogen peroxide reaction 60 minutes.After having reacted, suction filtration, wash, be drying to obtain this heavy metal absorbent.
The present invention has following distinguishing feature:
(1) invent described heavy metal absorbent, raw material sources are extensive, cheap;
(2) invent described heavy metal absorbent preparation method simple, the reaction time is short;
(3) invent described heavy metal absorbent stable performance, the life-span is long, can preserve for a long time use.
the specific embodiment:
Embodiment 1:
Splendid achnatherum is pulverized, dried, get a weight portion grass meal, add little water, with the sodium hydroxide solution of 0.1M, pH value is adjusted in to 8.0, under 20 degree, stirring reaction is 60 minutes, then adds 30% hydrogen peroxide reaction 60 minutes.After having reacted, suction filtration, wash, be drying to obtain this heavy metal absorbent.
Embodiment 2:
Splendid achnatherum is pulverized, dried, get a weight portion grass meal, add little water, with the sodium hydroxide solution of 0.1M, pH value is adjusted in to 9.0, under 25 degree, stirring reaction is 70 minutes, then adds 30% hydrogen peroxide reaction 60 minutes.After having reacted, suction filtration, wash, be drying to obtain this heavy metal absorbent.
Embodiment 3:
Splendid achnatherum is pulverized, dried, get a weight portion grass meal, add little water, with the sodium hydroxide solution of 0.1M, pH value is adjusted in to 10.0, under 30 degree, stirring reaction is 80 minutes, then adds 30% hydrogen peroxide reaction 60 minutes.After having reacted, suction filtration, wash, be drying to obtain this heavy metal absorbent.
Claims (1)
1. the invention discloses adsorbent of a kind of modification grass fiber Adsorption of Heavy Metals and preparation method thereof, for achieving the above object, the technical solution used in the present invention is as follows:
Splendid achnatherum is pulverized, dried, get a certain amount of grass meal, add little water, with the sodium hydroxide solution of 0.1M, pH value is adjusted in to 7.5-10.5, stirring reaction 60-80 minute under 20-30 degree, then add 30% hydrogen peroxide reaction 60 minutes; After having reacted, suction filtration, wash, be drying to obtain this heavy metal absorbent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410335421.XA CN104056605A (en) | 2014-07-15 | 2014-07-15 | Grass fiber modified heavy metal adsorbent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410335421.XA CN104056605A (en) | 2014-07-15 | 2014-07-15 | Grass fiber modified heavy metal adsorbent and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
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| CN104056605A true CN104056605A (en) | 2014-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410335421.XA Pending CN104056605A (en) | 2014-07-15 | 2014-07-15 | Grass fiber modified heavy metal adsorbent and preparation method thereof |
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| CN (1) | CN104056605A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109012641A (en) * | 2018-08-29 | 2018-12-18 | 宝钢湛江钢铁有限公司 | A kind of preparation method of modified steel scoria heavy metal absorbent |
-
2014
- 2014-07-15 CN CN201410335421.XA patent/CN104056605A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109012641A (en) * | 2018-08-29 | 2018-12-18 | 宝钢湛江钢铁有限公司 | A kind of preparation method of modified steel scoria heavy metal absorbent |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140924 |
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| WD01 | Invention patent application deemed withdrawn after publication |