CN104815622A - Attapulgite heavy metal adsorbent and preparation method thereof - Google Patents
Attapulgite heavy metal adsorbent and preparation method thereof Download PDFInfo
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- CN104815622A CN104815622A CN201510167246.2A CN201510167246A CN104815622A CN 104815622 A CN104815622 A CN 104815622A CN 201510167246 A CN201510167246 A CN 201510167246A CN 104815622 A CN104815622 A CN 104815622A
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- attapulgite
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Abstract
The invention discloses an attapulgite heavy metal adsorbent, which comprises the following raw materials by weight part: 10-20 parts of attapulgite, 50-80 parts of fresh sea-tangle, 3-5 parts of sweet rice flour, 3-5 parts of xanthan gum, 3-5 parts of mannitol, 1-2 parts of hydroxyethyl cellulose, 0.1-0.2 parts of tween 80, 0.5-1 part of sodium hexametaphosphate and 0.05-0.1 parts of sodium benzoate. The heavy metal adsorbent has the advantages of strong adsorption capability, large adsorption capacity and high removal efficiency, and has the characteristics that property is stable, recovery and reutilization are easy, raw material source is wide, cost is low, no secondary pollution is generated, and utility value is high.
Description
Technical field
The present invention relates to environmental treatment field, be specifically related to a kind of attapulgite 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 attapulgite 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 attapulgite heavy metal absorbent, it is obtained by the raw material of following weight parts:
Attapulgite 10-20, fresh sea-tangle 50-80, glutinous rice flour 3-5, xanthans 3-5, sweet mellow wine 3-5, hydroxyethylcellulose 1-2, Tween 80 0.1-0.2, calgon 0.5-1, Sodium Benzoate 0.05-0.1.
A preparation method for attapulgite heavy metal absorbent, comprises the following steps:
(1) attapulgite is mixed with calgon, in 400-500 DEG C of process 3-5h after co-ground to 300-400 order, add glutinous rice flour after cooling and mix, obtain mixed powder;
(2) rinse well with water after fresh sea-tangle soak at room temperature being spent the night, grind after dry 3-6h under 60-80 DEG C of condition, obtain Kelp Powder; Described Kelp Powder is added in the mixed powder obtained in step (1), after stirring, add the acetum of 4-8% by solid-liquid weight ratio 1:1-1:1.5,60-80 DEG C, 400-600r/min stirs 4-8h, obtains mixed liquor;
(3) mixed liquor in step (2) is mixed with all the other raw materials, 80-90 DEG C, 600-800r/min stirs 1-2h, first pH is adjusted to neutrality after cooling, then in-20 DEG C--10 DEG C of process 4-8h, last 20-30 DEG C standing 2-4h, obtain mixed-matrix;
(4) the mixed-matrix freeze drying will obtained in step (3), then by the crushing material that obtains to 10-50 order, get product after packing.
Attapulgite is a kind of natural inorganic mineral material, has characteristic that is cheap and easy to get, advantages of good adsorption effect.Attapulgite has larger specific area, and absorption lower limit is low, and adsorption time is fast, and the heavy metal ions in absorption waste water has broad application prospects.Containing active component and group in sea-tangle, the high adsorption capacity of heavy metal ion.Carry out compatibility by the host material such as sea-tangle and attapulgite, by the improvement of composition and engineering, form the sorbing material having loose structure and stronger heavy metal ion adsorbed ability concurrently, improve the absorption of heavy metal, accumulation ability and adsorption capacity.
Advantage of the present invention is:
The present invention using attapulgite and the common compatibility of sea-tangle as adsorbing base, 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, stable in properties, is easy to recycling; Raw material sources are extensive simultaneously, and cheap, 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 attapulgite heavy metal absorbent, is prepared from by the component raw material of following weight (kg):
Attapulgite 15, fresh sea-tangle 60, glutinous rice flour 4, xanthans 4, sweet mellow wine 4, hydroxyethylcellulose 1.5, Tween 80 0.15, calgon 0.8, Sodium Benzoate 0.08.
The preparation method of attapulgite heavy metal absorbent comprises the following steps:
(1) attapulgite is mixed with calgon, in 500 DEG C of process 3h after co-ground to 400 order, add glutinous rice flour after cooling and mix, obtain mixed powder;
(2) rinse well with water after fresh sea-tangle soak at room temperature being spent the night, grind after dry 3h under 80 DEG C of conditions, obtain Kelp Powder; Described Kelp Powder is added in the mixed powder obtained in step (1), after stirring, add the acetum of 4% by solid-liquid weight ratio 1:1,60 DEG C, 600r/min stirs 8h, obtains mixed liquor;
(3) mixed liquor in step (2) is mixed with all the other raw materials, 90 DEG C, 800r/min stirs 1h, first pH is adjusted to neutrality after cooling, then in-20 DEG C of DEG C of process 6h, last 30 DEG C of standing 2h, obtain mixed-matrix;
(4) the mixed-matrix freeze drying will obtained in step (3), then crushing material to 10 order that will obtain, get 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 98.9%, to Pb
2+adsorption rate be 92.6%.
Claims (2)
1. an attapulgite heavy metal absorbent, is characterized in that, it is obtained by the raw material of following weight parts:
Attapulgite 10-20, fresh sea-tangle 50-80, glutinous rice flour 3-5, xanthans 3-5, sweet mellow wine 3-5, hydroxyethylcellulose 1-2, Tween 80 0.1-0.2, calgon 0.5-1, Sodium Benzoate 0.05-0.1.
2. the preparation method of a kind of attapulgite heavy metal absorbent according to claim 1, is characterized in that, comprise the following steps:
(1) attapulgite is mixed with calgon, in 400-500 DEG C of process 3-5h after co-ground to 300-400 order, add glutinous rice flour after cooling and mix, obtain mixed powder;
(2) rinse well with water after fresh sea-tangle soak at room temperature being spent the night, grind after dry 3-6h under 60-80 DEG C of condition, obtain Kelp Powder; Described Kelp Powder is added in the mixed powder obtained in step (1), after stirring, add the acetum of 4-8% by solid-liquid weight ratio 1:1-1:1.5,60-80 DEG C, 400-600r/min stirs 4-8h, obtains mixed liquor;
(3) mixed liquor in step (2) is mixed with all the other raw materials, 80-90 DEG C, 600-800r/min stirs 1-2h, first pH is adjusted to neutrality after cooling, then in-20 DEG C--10 DEG C of process 4-8h, last 20-30 DEG C standing 2-4h, obtain mixed-matrix;
(4) the mixed-matrix freeze drying will obtained in step (3), then by the crushing material that obtains to 10-50 order, get product after packing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510167246.2A CN104815622A (en) | 2015-04-10 | 2015-04-10 | Attapulgite heavy metal adsorbent and preparation method thereof |
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| CN201510167246.2A CN104815622A (en) | 2015-04-10 | 2015-04-10 | Attapulgite heavy metal adsorbent and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111001381A (en) * | 2019-12-28 | 2020-04-14 | 江苏麦阁吸附剂有限公司 | Household attapulgite adsorbent and preparation method thereof |
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 |
| CN103495389A (en) * | 2013-08-30 | 2014-01-08 | 蚌埠凤凰滤清器有限责任公司 | Modified straw activated carbon water treatment agent and its preparation method |
| CN103585949A (en) * | 2013-11-13 | 2014-02-19 | 南京理工大学 | Method for preparing heavy metal absorption agent by utilizing desulfurized gypsum |
-
2015
- 2015-04-10 CN CN201510167246.2A patent/CN104815622A/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 |
| CN103495389A (en) * | 2013-08-30 | 2014-01-08 | 蚌埠凤凰滤清器有限责任公司 | Modified straw activated carbon water treatment agent and its preparation method |
| CN103585949A (en) * | 2013-11-13 | 2014-02-19 | 南京理工大学 | Method for preparing heavy metal absorption agent by utilizing desulfurized gypsum |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111001381A (en) * | 2019-12-28 | 2020-04-14 | 江苏麦阁吸附剂有限公司 | Household attapulgite adsorbent and preparation method thereof |
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Application publication date: 20150805 |
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