CN104785224A - Agar/kelp powder heavy metal adsorbent and preparation method thereof - Google Patents
Agar/kelp powder heavy metal adsorbent and preparation method thereof Download PDFInfo
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- CN104785224A CN104785224A CN201510167419.0A CN201510167419A CN104785224A CN 104785224 A CN104785224 A CN 104785224A CN 201510167419 A CN201510167419 A CN 201510167419A CN 104785224 A CN104785224 A CN 104785224A
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Abstract
The invention discloses an agar/kelp powder heavy metal adsorbent. The adsorbent is characterized by being prepared from raw materials in parts by weight as follows: 40-50 parts of kelp powder, 3-5 parts of agar powder, 3-5 parts of corn starch, 3-5 parts of lignocellulose, 2-4 parts of pectin, 1-2 parts of polyethylene glycol, 1-2 parts of citric acid, 0.05-0.1 parts of sodium benzoate, 0.05-0.1 parts of sodium dodecyl sulfate and 40-50 parts of water. The heavy metal adsorbent has the advantages of high adsorption capacity, high adsorption capacity and high removal efficiency and is easy to recover, high in stability, environment-friendly, free of secondary pollution and high in practical value.
Description
Technical field
The present invention relates to environmental treatment field, be specifically related to a kind of agar/Kelp Powder heavy metal absorbent and preparation method thereof.
Background technology
Normal containing heavy metal ion in the waste water that industrial production is discharged, severe contamination environment, simultaneously biological from wherein absorbing heavy metal by food chain enrichment, enter human body, cause slow poisoning, potential threat is caused to health.The method of process heavy metal in waste water mainly contains absorption method, electrolysis, ion-exchange and the precipitation method etc.These method removal heavy metal efficiency are high, but have the problems such as cost is large, energy consumption is high, complicated operation, instrument and equipment are expensive, limit its application.
Absorption method is as a kind of conventional heavy metal processing method, and key is to select suitable adsorbing medium.Wherein biological adsorption agent not only has the feature of general adsorbent, also has that cost is low, source is wide, high, selective good a, advantage such as condition of compatibility is wide of removal efficiency.Sea-tangle, as a kind of biological adsorption agent, has high using value, has a extensive future in heavy metal pollution process.
Summary of the invention
The object of this invention is to provide a kind of agar/Kelp Powder heavy metal absorbent, heavy metal adsorption is strong, adsorption capacity is large, removal efficiency is high, do not produce secondary pollution.
The present invention is achieved by the following technical solutions:
A kind of agar/Kelp Powder heavy metal absorbent, it is obtained by the raw material of following weight parts:
Kelp Powder 40-50, agar powder 3-5, cornstarch 3-5, lignocellulosic 3-5, pectin 2-4, polyethylene glycol 1-2, citric acid 1-2, Sodium Benzoate 0.05-0.1, lauryl sodium sulfate 0.05-0.1, water 40-50.
A preparation method for agar/Kelp Powder heavy metal absorbent, comprises the following steps:
(1) be ground to 200-300 order after cornstarch, citric acid and lignocellulosic being mixed, then add water 80-90 DEG C and stir 0.5-1h;
(2) first Kelp Powder is added in the mixed liquor obtained in step (1), 60-80 DEG C, 800-1000r/min stirs 8-12h, then stir 0.5-1h under adding Sodium Benzoate and lauryl sodium sulfate similarity condition;
(3) after the mixed liquor obtained in step (2) being mixed with polyethylene glycol, agar powder, pectin 90-95 DEG C, 400-600r/min stirs 2-4h, prior to-20 DEG C after cooling under room temperature--process 8-12h under 10 DEG C of conditions, then leave standstill 3-5h under 20-30 DEG C of condition;
(4) the mixed-matrix freeze drying will obtained in step (3), is crushed to 10-50 order, gets product after packing.
Containing active component and group in sea-tangle, the high adsorption capacity of heavy metal ion.Compatibility is carried out by sea-tangle and the matrix such as agar powder, cornstarch, by the improvement of recipe optimization, form mixed gel, and finally form porous, adsorbing medium that specific area is large by freeze drying, enhance the trapping to heavy metal in water, adsorption capacity, improve adsorption capacity and the absorption property of heavy metal, selective height.
Advantage of the present invention is:
The present invention passes through the common compatibility such as agar, cornstarch and Kelp Powder as adsorbing base, utilize the adhesive property of the high absorption property of sea-tangle, the gelling properties of agar and cornstarch, by the improvement of composition and engineering, obtain that there is loose structure, the adsorbing medium that specific area is large, the heavy metal absorbent obtained is made to have high adsorption capacity, adsorption capacity is large, removal efficiency is high advantage, have simultaneously be easy to reclaim, stability is strong, environmental protection, do not produce secondary pollution, practical value is high.
Detailed description of the invention
Non-limiting examples of the present invention is as follows:
A kind of agar/Kelp Powder heavy metal absorbent, is prepared from by the component raw material of following weight (kg):
Kelp Powder 45, agar powder 4, cornstarch 4, lignocellulosic 4, pectin 3, polyethylene glycol 1.5, citric acid 1.5, Sodium Benzoate 0.08, lauryl sodium sulfate 0.08, water 45.
The preparation method of agar/Kelp Powder heavy metal absorbent comprises the following steps:
(1) be ground to 300 orders after cornstarch, citric acid and lignocellulosic being mixed, then add 90 DEG C, water and stir 0.5h;
(2) first Kelp Powder is added in the mixed liquor obtained in step (1), 80 DEG C, 1000r/min stirs 8h, then stir 0.5h under adding Sodium Benzoate and lauryl sodium sulfate similarity condition;
(3) mixed liquor obtained in step (2) is mixed latter 95 DEG C with polyethylene glycol, agar powder, pectin, 600r/min stirs 2h, under room temperature after cooling prior to processing 8h under-20 DEG C of DEG C of conditions, then leave standstill 3h under 30 DEG C of conditions;
(4) the mixed-matrix freeze drying will obtained in step (3), is crushed to 10 orders, gets product after packing.
Respectively above-mentioned for 0.5g obtained heavy metal absorbent being added 200mL concentration of heavy metal ion is in the solution of 100mg/L, under pH=7, temperature are the condition of 25 DEG C, when adsorption time 10min, measure its adsorption rate to different heavy metal ion, measurement result its to Cu
2+adsorption rate be 99.1%, to Pb
2+adsorption rate be 91.5%.
Claims (2)
1. agar/Kelp Powder heavy metal absorbent, is characterized in that, it is obtained by the raw material of following weight parts:
Kelp Powder 40-50, agar powder 3-5, cornstarch 3-5, lignocellulosic 3-5, pectin 2-4, polyethylene glycol 1-2, citric acid 1-2, Sodium Benzoate 0.05-0.1, lauryl sodium sulfate 0.05-0.1, water 40-50.
2. the preparation method of a kind of agar/Kelp Powder heavy metal absorbent according to claim 1, is characterized in that, comprise the following steps:
(1) be ground to 200-300 order after cornstarch, citric acid and lignocellulosic being mixed, then add water 80-90 DEG C and stir 0.5-1h;
(2) first Kelp Powder is added in the mixed liquor obtained in step (1), 60-80 DEG C, 800-1000r/min stirs 8-12h, then stir 0.5-1h under adding Sodium Benzoate and lauryl sodium sulfate similarity condition;
(3) after the mixed liquor obtained in step (2) being mixed with polyethylene glycol, agar powder, pectin 90-95 DEG C, 400-600r/min stirs 2-4h, prior to-20 DEG C after cooling under room temperature--process 8-12h under 10 DEG C of conditions, then leave standstill 3-5h under 20-30 DEG C of condition;
(4) the mixed-matrix freeze drying will obtained in step (3), is crushed to 10-50 order, gets product after packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510167419.0A CN104785224A (en) | 2015-04-10 | 2015-04-10 | Agar/kelp powder heavy metal adsorbent and preparation method thereof |
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| CN201510167419.0A CN104785224A (en) | 2015-04-10 | 2015-04-10 | Agar/kelp powder heavy metal adsorbent and preparation method thereof |
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| CN104785224A true CN104785224A (en) | 2015-07-22 |
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| CN201510167419.0A Pending CN104785224A (en) | 2015-04-10 | 2015-04-10 | Agar/kelp powder heavy metal adsorbent and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106478310A (en) * | 2016-12-27 | 2017-03-08 | 贵州大学 | A kind of fertilizer of the lead ion activity reducing soil |
| CN106631485A (en) * | 2016-12-28 | 2017-05-10 | 贵州大学 | Fertilizer for remedying pollution caused by hexachlorocyclohexane |
| KR20190051699A (en) * | 2017-11-07 | 2019-05-15 | 윤성순 | the fabrication method of marine algae adsorbent |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101224412A (en) * | 2007-10-15 | 2008-07-23 | 北京航空航天大学 | Biologic absorbent for adsorbing heavy metal and preparing method thereof |
| CN101507915A (en) * | 2009-02-20 | 2009-08-19 | 厦门大学 | Preparation method of alga biology absorbent |
| CN102229896A (en) * | 2010-05-10 | 2011-11-02 | 新疆农业科学院微生物应用研究所 | Application of radiation resistant bacteria in biological treatment of heavy metal ions |
| CN102941069A (en) * | 2012-11-26 | 2013-02-27 | 中国工程物理研究院核物理与化学研究所 | Hydrogel capable of being used as heavy metal absorbent and preparation method of hydrogel |
-
2015
- 2015-04-10 CN CN201510167419.0A patent/CN104785224A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101224412A (en) * | 2007-10-15 | 2008-07-23 | 北京航空航天大学 | Biologic absorbent for adsorbing heavy metal and preparing method thereof |
| CN101507915A (en) * | 2009-02-20 | 2009-08-19 | 厦门大学 | Preparation method of alga biology absorbent |
| CN102229896A (en) * | 2010-05-10 | 2011-11-02 | 新疆农业科学院微生物应用研究所 | Application of radiation resistant bacteria in biological treatment of heavy metal ions |
| CN102941069A (en) * | 2012-11-26 | 2013-02-27 | 中国工程物理研究院核物理与化学研究所 | Hydrogel capable of being used as heavy metal absorbent and preparation method of hydrogel |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106478310A (en) * | 2016-12-27 | 2017-03-08 | 贵州大学 | A kind of fertilizer of the lead ion activity reducing soil |
| CN106631485A (en) * | 2016-12-28 | 2017-05-10 | 贵州大学 | Fertilizer for remedying pollution caused by hexachlorocyclohexane |
| KR20190051699A (en) * | 2017-11-07 | 2019-05-15 | 윤성순 | the fabrication method of marine algae adsorbent |
| KR102022000B1 (en) * | 2017-11-07 | 2019-09-17 | 윤성순 | the fabrication method of marine algae adsorbent |
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Application publication date: 20150722 |
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