CN106390945A - Heavy metal adsorbing material prepared from straws and preparation method thereof - Google Patents
Heavy metal adsorbing material prepared from straws and preparation method thereof Download PDFInfo
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- CN106390945A CN106390945A CN201611115627.7A CN201611115627A CN106390945A CN 106390945 A CN106390945 A CN 106390945A CN 201611115627 A CN201611115627 A CN 201611115627A CN 106390945 A CN106390945 A CN 106390945A
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0248—Compounds of B, Al, Ga, In, Tl
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/14—Diatomaceous earth
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
- B01J2220/4825—Polysaccharides or cellulose materials, e.g. starch, chitin, sawdust, wood, straw, cotton
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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Abstract
The invention discloses a heavy metal adsorbing material prepared from straws. The heavy metal adsorbing material is prepared from the following raw materials in parts by weight: 21-25 parts of straw, 12-16 parts of diatomite, 4-7 parts of citric acid, 2-5 parts of aluminum chlorohydrate, 3-6 parts of cysteine and 2-5 parts of guggulsterone. The invention also discloses a preparation method of the heavy metal adsorbing material prepared from straws. The heavy metal adsorbing material prepared by the invention achieves a favorable adsorption effect on both heavy metal lead ions and heavy metal cadmium ions, has excellent adsorbability, and can be used in the field of heavy metal treatment.
Description
Technical field
The present invention relates to heavy-metal adsorption material technical field, specifically a kind of heavy metal adsorption material of utilization straw preparation
Material and preparation method thereof.
Background technology
Heavy metal is a kind of toxic element that can accumulate in vivo, and with industrial expansion, heavy metal pollution is subject to
Extensively pay attention to, heavy metal can be accumulated in biological chain after entering environment and be enriched with, and can not be biodegradable, and can hide for a long time
In environment, and enter human body serious harm life and health with food chain.The method going heavy metal ion in eliminating water at present is general
Have：Coagulation Method, chemical precipitation method, membrane separation process, ion-exchange-resin process, bioanalysis, absorption method etc..Coagulation Method is using adding
The flco Adsorption heavy metal ion that coagulant is formed, this method need to consume larger amount of coagulant, relatively costly, conventional water
Under the conditions of matter, the removal effect of heavy metal ion is undesirable；Chemical precipitation method is heavy metal ion to be changed into the sulphur being insoluble in water
Carry out precipitation after the salt such as compound or hydroxide to remove, have that flow process is simple, the low advantage of processing cost, but the quantity of slag is big, contain
Water rate is high, dehydration is difficult, and has the risk of secondary pollution, and because this method is based on the principle of solubility product, it cannot be processed
The relatively low waste water of concentration of heavy metal ion；Membrane separation process is the selectivity using film, and the energy difference being existed using film both sides is as pushing away
, it is allowed to some components pass through and retain other components in mixture, thus reaching the technology separating purpose, it can be effective for power
Go the heavy metal ion in eliminating water, but processing cost is very high；Ion-exchange-resin process is will to be dissolved in water by ion exchange resin
In heavy metal ion exchange in resin, removed with this or reclaim heavy metal ion, but ion exchange resin is expensive, and
Regeneration need to consume a large amount of medicaments；Bioanalysis be organism by physics, chemical action Adsorption of Heavy Metal Ions, there is energy-conservation, place
The advantages of manage efficiency high, be easily isolated recovery heavy metal, but bioanalysis needs to carry out introducing a fine variety, cultivating and nutriment of biology
Supply, runs operation inconvenience；And when concentration of heavy metal ion is higher, toxic and side effect can be given birth to bio, cause biological anti-
Answer efficiency to reduce even to lose efficacy；Absorption method is a kind of tradition side using porous solid material Adsorption water pollutant
Method, it is various to have raw material sources, using easy and simple to handle, renewable the advantages of, application is relatively wide at present, but is applied to heavy metals removal
Efficient, economic heavy metal ion adsorbing material still rare.
It is always the study hotspot of this area using agricultural byproducts as heavy-metal adsorption material, due to agricultural byproducts source
Extensively, cheap, and be not in secondary pollution during use, therefore suffer from extensive concern.Disclose in prior art
In the application in heavy metal adsorption field, straw is exactly one kind therein to multiple agricultural byproducts.But existing based on straw preparation
The adsorption effect of sorbing material heavy metal is performed poor, and practicality is not strong.
Content of the invention
It is an object of the invention to provide a kind of heavy-metal adsorption material of utilization straw preparation and preparation method thereof, to solve
The problem certainly proposing in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme：
A kind of heavy-metal adsorption material of utilization straw preparation, is made up of the following raw material according to weight portion：Straw 21-25
Part, diatomite 12-16 part, citric acid 4-7 part, chlorination hydroxyl aluminium 2-5 part, cysteine 3-6 part, myrrh sterone 2-5 part.
As the further scheme of the present invention：It is made up of the following raw material according to weight portion：Straw 22-24 part, diatomite
13-15 part, citric acid 5-6 part, chlorination hydroxyl aluminium 3-4 part, cysteine 4-5 part, myrrh sterone 3-4 part.
As the present invention further scheme：It is made up of the following raw material according to weight portion：23 parts of straw, diatomite 14
Part, 5.7 parts of citric acid, 3.5 parts of chlorination hydroxyl aluminium, 4.4 parts of cysteine, 3.8 parts of myrrh sterone.
The preparation method of the heavy-metal adsorption material of described utilization straw preparation, step is as follows：
1) weigh straw, being crushed to particle diameter is 1-2mm, puts in baking oven, dried process 1-2h at 140-150 DEG C, obtains
Obtain rice straw powder；
2) rice straw powder is put into micronizer, carry out ultramicro grinding, after ultramicro grinding, cross 400-500 mesh sieve, obtain
Obtain straw Ultramicro-powder；
3) weigh diatomite, isothermal holding 40-50min at 620-650 DEG C, after pulverizing, crosses 200-300 mesh sieve, obtains
Diatomite powder, standby；
4) weigh citric acid and myrrh sterone, after merging, add the deionized water of total amount 10-13 times weight, at 85-90 DEG C
Lower stirring mixing 1-2h, obtains mixed liquor A；
5) weigh chlorination hydroxyl aluminium and cysteine, add to mixed liquor A, stirring mixing 40-50min at 60-65 DEG C,
Then ultrasonication 50-60min again, obtains mixed liquid B；
6) straw Ultramicro-powder and diatomite powder are added and carry out wet ball grinding to ball mill, using mixed liquid B as grinding
Grinding fluid, ball-milling treatment 3-4h, obtain slurries；
7) after slurries being vacuum dried, obtain desciccate, by desciccate at 480-490 DEG C isothermal holding 1-2h,
Then naturally cool to room temperature, then grind, cross 100-200 mesh sieve, you can.
Above-mentioned sorbing material can be applied to process heavy metal wastewater thereby.
Compared with prior art, the invention has the beneficial effects as follows：
1st, the present invention preparation heavy-metal adsorption material heavy metal lead ion and heavy metal cadmium ion be respectively provided with good
Adsorption effect, absorption property is excellent, can be applied to heavy metal process field.2nd, the sorbing material of present invention preparation, its utilization
Straw, as raw material, carries out twice laid to this agricultural byproducts of straw, turns waste into wealth, reduce production cost, is conducive to giving birth to
The heavy-metal adsorption material of output low cost, is conducive to the development of heavy metal treatment industry.
Specific embodiment
With reference to specific embodiment, technical scheme is described in more detail.
Embodiment 1
A kind of heavy-metal adsorption material of utilization straw preparation, is made up of the following raw material according to weight portion：21 parts of straw,
12 parts of diatomite, 4 parts of citric acid, 2 parts of chlorination hydroxyl aluminium, 3 parts of cysteine, 2 parts of myrrh sterone.
In the present embodiment, the preparation method of the heavy-metal adsorption material of described utilization straw preparation, step is as follows：
1) weigh straw, being crushed to particle diameter is 1mm, puts in baking oven, dried process 1h at 140 DEG C, obtains rice straw powder；
2) rice straw powder is put into micronizer, carry out ultramicro grinding, after ultramicro grinding, cross 400 mesh sieves, obtain rice
Careless Ultramicro-powder；
3) weigh diatomite, isothermal holding 40min at 620 DEG C, after pulverizing, cross 200 mesh sieves, obtain diatomite powder,
Standby；
4) weigh citric acid and myrrh sterone, after merging, add the deionized water of 10 times of weight of total amount, stir at 85 DEG C
Mixing 1h, obtains mixed liquor A；
5) weigh chlorination hydroxyl aluminium and cysteine, add to mixed liquor A, stirring mixing 40min, Ran Houzai at 60 DEG C
Ultrasonication 50min, obtains mixed liquid B；
6) straw Ultramicro-powder and diatomite powder are added and carry out wet ball grinding to ball mill, using mixed liquid B as grinding
Grinding fluid, ball-milling treatment 3h, obtain slurries；
7) after slurries being vacuum dried, obtain desciccate, by desciccate at 480 DEG C isothermal holding 1h, then from
So it is cooled to room temperature, then grinds, cross 100 mesh sieves, you can.
Embodiment 2
A kind of heavy-metal adsorption material of utilization straw preparation, is made up of the following raw material according to weight portion：22 parts of straw,
13 parts of diatomite, 6 parts of citric acid, 4 parts of chlorination hydroxyl aluminium, 4 parts of cysteine, 4 parts of myrrh sterone.
In the present embodiment, the preparation method of the heavy-metal adsorption material of described utilization straw preparation, step is as follows：
1) weigh straw, being crushed to particle diameter is 1mm, puts in baking oven, dried process 1h at 145 DEG C, obtains rice straw powder；
2) rice straw powder is put into micronizer, carry out ultramicro grinding, after ultramicro grinding, cross 400 mesh sieves, obtain rice
Careless Ultramicro-powder；
3) weigh diatomite, isothermal holding 43min at 630 DEG C, after pulverizing, cross 200 mesh sieves, obtain diatomite powder,
Standby；
4) weigh citric acid and myrrh sterone, after merging, add the deionized water of 11 times of weight of total amount, stir at 86 DEG C
Mixing 1.5h, obtains mixed liquor A；
5) weigh chlorination hydroxyl aluminium and cysteine, add to mixed liquor A, stirring mixing 45min, Ran Houzai at 62 DEG C
Ultrasonication 60min, obtains mixed liquid B；
6) straw Ultramicro-powder and diatomite powder are added and carry out wet ball grinding to ball mill, using mixed liquid B as grinding
Grinding fluid, ball-milling treatment 3h, obtain slurries；
7) after slurries being vacuum dried, obtain desciccate, by desciccate at 483 DEG C isothermal holding 1.5h, then
Naturally cool to room temperature, then grind, cross 100 mesh sieves, you can.
Embodiment 3
A kind of heavy-metal adsorption material of utilization straw preparation, is made up of the following raw material according to weight portion：23 parts of straw,
14 parts of diatomite, 5.7 parts of citric acid, 3.5 parts of chlorination hydroxyl aluminium, 4.4 parts of cysteine, 3.8 parts of myrrh sterone.
In the present embodiment, the preparation method of the heavy-metal adsorption material of described utilization straw preparation, step is as follows：
1) weigh straw, being crushed to particle diameter is 1.5mm, puts in baking oven, dried process 1.5h at 145 DEG C, obtains rice
Grass meal；
2) rice straw powder is put into micronizer, carry out ultramicro grinding, after ultramicro grinding, cross 500 mesh sieves, obtain rice
Careless Ultramicro-powder；
3) weigh diatomite, isothermal holding 45min at 640 DEG C, after pulverizing, cross 200 mesh sieves, obtain diatomite powder,
Standby；
4) weigh citric acid and myrrh sterone, after merging, add the deionized water of 12 times of weight of total amount, stir at 87 DEG C
Mixing 1.5h, obtains mixed liquor A；
5) weigh chlorination hydroxyl aluminium and cysteine, add to mixed liquor A, stirring mixing 45min, Ran Houzai at 63 DEG C
Ultrasonication 55min, obtains mixed liquid B；
6) straw Ultramicro-powder and diatomite powder are added and carry out wet ball grinding to ball mill, using mixed liquid B as grinding
Grinding fluid, ball-milling treatment 3.5h, obtain slurries；
7) after slurries being vacuum dried, obtain desciccate, by desciccate at 485 DEG C isothermal holding 1.5h, then
Naturally cool to room temperature, then grind, cross 200 mesh sieves, you can.
Embodiment 4
A kind of heavy-metal adsorption material of utilization straw preparation, is made up of the following raw material according to weight portion：24 parts of straw,
15 parts of diatomite, 5 parts of citric acid, 3 parts of chlorination hydroxyl aluminium, 5 parts of cysteine, 3 parts of myrrh sterone.
In the present embodiment, the preparation method of the heavy-metal adsorption material of described utilization straw preparation, step is as follows：
1) weigh straw, being crushed to particle diameter is 2mm, puts in baking oven, dried process 1.5h at 143 DEG C, obtains straw
Powder；
2) rice straw powder is put into micronizer, carry out ultramicro grinding, after ultramicro grinding, cross 400 mesh sieves, obtain rice
Careless Ultramicro-powder；
3) weigh diatomite, isothermal holding 47min at 630 DEG C, after pulverizing, cross 300 mesh sieves, obtain diatomite powder,
Standby；
4) weigh citric acid and myrrh sterone, after merging, add the deionized water of 13 times of weight of total amount, stir at 87 DEG C
Mixing 1h, obtains mixed liquor A；
5) weigh chlorination hydroxyl aluminium and cysteine, add to mixed liquor A, stirring mixing 47min, Ran Houzai at 62 DEG C
Ultrasonication 50min, obtains mixed liquid B；
6) straw Ultramicro-powder and diatomite powder are added and carry out wet ball grinding to ball mill, using mixed liquid B as grinding
Grinding fluid, ball-milling treatment 3.5h, obtain slurries；
7) after slurries being vacuum dried, obtain desciccate, by desciccate at 485 DEG C isothermal holding 1.5h, then
Naturally cool to room temperature, then grind, cross 100 mesh sieves, you can.
Embodiment 5
A kind of heavy-metal adsorption material of utilization straw preparation, is made up of the following raw material according to weight portion：25 parts of straw,
16 parts of diatomite, 7 parts of citric acid, 5 parts of chlorination hydroxyl aluminium, 6 parts of cysteine, 5 parts of myrrh sterone.
In the present embodiment, the preparation method of the heavy-metal adsorption material of described utilization straw preparation, step is as follows：
1) weigh straw, being crushed to particle diameter is 2mm, puts in baking oven, dried process 2h at 150 DEG C, obtains rice straw powder；
2) rice straw powder is put into micronizer, carry out ultramicro grinding, after ultramicro grinding, cross 500 mesh sieves, obtain rice
Careless Ultramicro-powder；
3) weigh diatomite, isothermal holding 50min at 650 DEG C, after pulverizing, cross 300 mesh sieves, obtain diatomite powder,
Standby；
4) weigh citric acid and myrrh sterone, after merging, add the deionized water of 13 times of weight of total amount, stir at 90 DEG C
Mixing 2h, obtains mixed liquor A；
5) weigh chlorination hydroxyl aluminium and cysteine, add to mixed liquor A, stirring mixing 50min, Ran Houzai at 65 DEG C
Ultrasonication 60min, obtains mixed liquid B；
6) straw Ultramicro-powder and diatomite powder are added and carry out wet ball grinding to ball mill, using mixed liquid B as grinding
Grinding fluid, ball-milling treatment 4h, obtain slurries；
7) after slurries being vacuum dried, obtain desciccate, by desciccate at 490 DEG C isothermal holding 2h, then from
So it is cooled to room temperature, then grinds, cross 200 mesh sieves, you can.
Comparative example 1
Compared with Example 3, without myrrh sterone, other are same as Example 3.
Comparative example 2
Compared with Example 3, without cysteine, other are same as Example 3.
Comparative example 3
Compared with Example 3, without myrrh sterone and cysteine, other are same as Example 3.
Comparative example 4
Compared with Example 3, using conventional preparation method, other are same as Example 3.Wherein, described conventional preparation
Method is to be pulverized and mixed uniformly each raw material.
Heavy metal adsorption test is carried out using the sorbing material prepared by embodiment 1-5 and comparative example 1-4, measures each absorption
The absorption property of material heavy metal under conditions of 20 DEG C, pH=7, result of the test is as shown in table 1.
Table 1 absorption property table
| Group | Cd(mg/g) | Pb(mg/g) |
| Embodiment 1 | 76.83 | 225.73 |
| Embodiment 2 | 76.56 | 232.85 |
| Embodiment 3 | 82.54 | 236.47 |
| Embodiment 4 | 81.36 | 228.96 |
| Embodiment 5 | 79.91 | 229.58 |
| Comparative example 1 | 68.20 | 187.26 |
| Comparative example 2 | 65.72 | 186.54 |
| Comparative example 3 | 58.46 | 158.43 |
| Comparative example 4 | 63.57 | 173.52 |
As can be seen from the above table, the sorbing material heavy metal lead ion of present invention preparation and heavy metal cadmium ion are respectively provided with
Good adsorption effect, absorption property is excellent, can be applied to heavy metal process field.The sorbing material of present invention preparation, its
By the use of straw as raw material, twice laid is carried out to this agricultural byproducts of straw, turns waste into wealth, reduce production cost, favorably
In the heavy-metal adsorption material producing low cost, be conducive to the development of heavy metal treatment industry.
In addition, the sorbing material from the Data Comparison with comparative example 1-3 for the embodiment 3 as can be seen that prepared by embodiment 3
Performance be better than comparative example 1-3, and the performance of the sorbing material prepared by comparative example 1-2 be better than comparative example 3.Due to comparative example 1
Compared with Example 3, without myrrh sterone, other are same as Example 3；Comparative example 2 compared with Example 3, without half Guang ammonia
Acid, other are same as Example 3；Comparative example 3 compared with Example 3, without myrrh sterone and cysteine, other and embodiment
3 is identical.It can therefore be seen that the present invention passes through to add myrrh sterone and cysteine, myrrh sterone, cysteine and other groups
Divide synergy, be conducive to improving the adsorption effect of heavy metal.
The performance of the sorbing material from the Data Comparison with comparative example 4 for the embodiment 3 as can be seen that prepared by embodiment 3
Better than comparative example 4, due to comparative example 4 compared with Example 3, using conventional preparation method, other are same as Example 3, because
Using preparation method of the present invention, to the present invention, each raw material is processed for this, is conducive to improving the adsorption effect of heavy metal.
Above the better embodiment of the present invention is explained in detail, but the present invention is not limited to above-mentioned embodiment party
Formula, in the ken that one skilled in the relevant art possesses, can also be on the premise of without departing from present inventive concept
Various changes can be made.
Claims (5)
1. a kind of heavy-metal adsorption material using straw preparation is it is characterised in that be made up of the following raw material according to weight portion：
Straw 21-25 part, diatomite 12-16 part, citric acid 4-7 part, chlorination hydroxyl aluminium 2-5 part, cysteine 3-6 part, myrrh sterone 2-5
Part.
2. the heavy-metal adsorption material of utilization straw according to claim 1 preparation is it is characterised in that by following according to weight
The raw material of amount part is made：Straw 22-24 part, diatomite 13-15 part, citric acid 5-6 part, chlorination hydroxyl aluminium 3-4 part, cysteine 4-
5 parts, myrrh sterone 3-4 part.
3. the heavy-metal adsorption material of utilization straw according to claim 2 preparation is it is characterised in that by following according to weight
The raw material of amount part is made：23 parts of straw, 14 parts of diatomite, 5.7 parts of citric acid, 3.5 parts of chlorination hydroxyl aluminium, 4.4 parts of cysteine, do not have
3.8 parts of medicine sterone.
4. a kind of preparation method of the described heavy-metal adsorption material of utilization straw preparation as arbitrary in claim 1-3, it is special
Levy and be, step is as follows：
1) weigh straw, being crushed to particle diameter is 1-2mm, puts in baking oven, dried process 1-2h at 140-150 DEG C, obtains rice
Grass meal；
2) rice straw powder is put into micronizer, carry out ultramicro grinding, after ultramicro grinding, cross 400-500 mesh sieve, obtain rice
Careless Ultramicro-powder；
3) weigh diatomite, isothermal holding 40-50min at 620-650 DEG C, after pulverizing, crosses 200-300 mesh sieve, obtains diatom
Native powder, standby；
4) weigh citric acid and myrrh sterone, after merging, add the deionized water of total amount 10-13 times weight, stir at 85-90 DEG C
Mix mixing 1-2h, obtain mixed liquor A；
5) weigh chlorination hydroxyl aluminium and cysteine, add to mixed liquor A, stirring mixing 40-50min at 60-65 DEG C, then
Ultrasonication 50-60min again, obtains mixed liquid B；
6) straw Ultramicro-powder and diatomite powder are added and carry out wet ball grinding to ball mill, using mixed liquid B as lapping liquid,
Ball-milling treatment 3-4h, obtains slurries；
7) after slurries being vacuum dried, obtain desciccate, by desciccate at 480-490 DEG C isothermal holding 1-2h, then
Naturally cool to room temperature, then grind, cross 100-200 mesh sieve, you can.
5. purposes in heavy metal containing wastewater treatment field for the described sorbing material as arbitrary in claim 1-3.
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Application publication date: 20170215 |