CN104888688A - Adsorbent capable of absorbing soil heavy metal - Google Patents
Adsorbent capable of absorbing soil heavy metal Download PDFInfo
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- CN104888688A CN104888688A CN201510259175.9A CN201510259175A CN104888688A CN 104888688 A CN104888688 A CN 104888688A CN 201510259175 A CN201510259175 A CN 201510259175A CN 104888688 A CN104888688 A CN 104888688A
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- adsorbent
- heavy metal
- volcanic rock
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- deionized water
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Abstract
The invention discloses an adsorbent capable absorbing a soil heavy metal. The adsorbent is characterized by being prepared by the following raw materials, by weight part: 8-15 of calcium carbonate fiber, 20-40 of tetrabutyl titanate, 3-5 of silica sol, 6-8 of calcium aluminate, 60-80 of volcanic rock, 6-9 of PA6 nylon powder, 3-4 of gelatin, 1-3 of ammonium bicarbonate, 6-7 of diatomite, 5-8 of shell powder, and a proper amount of deionized water. Shell powder and diatomite added in the adsorbent has excellent biological property, can improve soil quality, and is high in adsorption efficiency of heavy metal. The prepared adsorbent has excellent adsorption effect on various contaminants, is high in adsorption efficiency, easy to remove, and good in reuse effect, and can greatly improve the soil. The production process is simple, and the material source is wide, so that the adsorbent has great application prospects.
Description
Technical field
the present invention relates to a kind of absorbent fields, be specifically related to a kind of can the adsorbent adsorbing heavy metal-polluted soil and preparation method thereof.
Background technology
Soil is that people work an indispensable resource in life, but frequent due to people's industrial activity, and most heavy metal ion flows into soil, the quality of serious harm soil, and can enter in human body along with food chain, has a strong impact on the healthy of people.Heavy metal can not be degraded by microorganisms, after easily being absorbed by organism, in higher organism, thousands of hundred times of ground enrichments get up to produce cumulative poison, simultaneously, because heavy metal pollution has disguise, chronicity and cumulative feature, its difficulty of governance is very large, is one of pollutant of most refractory reason.Although have developed the multiple processing methods such as such as the traditional chemical precipitation method, chelating flocculation, ferrite process, ion-exchange, evaporation concentration method, absorption method, membrane separation process and electrochemical method at present, compared with other processing method, absorption method due to have applied widely, treatment process is simple, raw material sources is wide, cost is lower, treatment effect is better, therefore has better practicality and more wide application prospect.
Volcanic rock quality is hard as lithotome, coating surface honeycomb porous, specific area is large, and soak change without exception in water, water proofing property is splendid, fire prevention, weather resisteant is good, can prevent the deterioration caused because of ultraviolet, have nontoxic, tasteless, intensity is high, heat insulation, acid and alkali-resistance, stain resistance, corrosion-resistant, resistance toly to go mouldy, and the advantage such as pollution-free, "dead", as sorbent material, there is good application prospect.Although adsorption rate and adsorption capacity are improved at present, but absorption after adsorbent and solvent not easily separated, the present invention adds magnetic material in sorbent material makes adsorbent can be good at being separated, recycle effective, reduce production cost, improve adsorption efficiency, expand the range of application of adsorbent.
Summary of the invention
The object of this invention is to provide a kind of can the adsorbent adsorbing heavy metal-polluted soil and preparation method thereof.
In order to realize object of the present invention, the present invention is by following scheme implementation:
An adsorbent for heavy metal-polluted soil can be adsorbed, be made up of the raw material of following weight portion: calcium carbonate fiber 8-15, butyl titanate 20-40, Ludox 3-5, calcium aluminate 6-8, volcanic rock 60-80, PA6 nylon powder 6-9, gelatin 3-4, carbonic hydroammonium 1-3, diatomite 6-7, oyster shell whiting 5-8, deionized water are appropriate;
A kind of adsorbent that can adsorb heavy metal-polluted soil of the present invention, be made up of following concrete steps:
(1) absolute ethyl alcohol of butyl titanate and 3-4 times amount is mixed, magnetic agitation 1h, magnetic agitation 2h is continued again by being added in above-mentioned solution after short for calcium carbonate fiber cutting, slow dropping deionized water, continue after gel to be formed to stir 0.5-1 hour, then to be added in baking oven that under 80 ° of C, to dry grinding for subsequent use;
(2) spend deionized water after volcanic rock being soaked 12h in concentrated sulfuric acid and grind to form fine powder to neutral oven dry, then mix with gelatin, PA6 nylon powder, in Muffle furnace, under 240-255 ° of C, calcine 0.5-1h, take out after cooling;
(3) by the product of step (1) gained and except calcium aluminate all the other remaining material mixing and stirring, employing pressure is that mixture is pressed into bead by the ball press of 10t-20t, selects particle size for subsequent use as ball core at the bead of 5-15mm scope after screening;
(4) product of step (2) gained and calcium aluminate are mixed, the bead of step (3) gained is placed in disc balling machine as kernel, add above-mentioned volcanic rock mixture, rolling pelletizing, volcanic rock is covered on ball core and forms shell, the composite sphere of gained is calcined under 550-600 ° of C 2-4h and become porous complex microsphere.
Advantage of the present invention is: the present invention adopts calcium carbonate fiber to mix with TiO 2 sol, enhance the intensity of TiO 2 sol, bactericidal properties, the performance of the aspect such as adsorbance and heat resistance, adopt gelatin and PA6 to be added to define skeleton when calcining in volcanic rock and make Adhesion enhancement between volcanic rock, not easily be scattered when making adsorbent dry linting, wearability strengthens, extend service life, and double-layer porous road adsorption microspheres made by adsorbent by the present invention, enhance adsorption capacity and adsorption rate, to tiny field trash, there is good adsorption effect, expand adsorption range, the oyster shell whiting added and diatomite all have good biological, soil soil property can be improved, heavy metal adsorption efficiency is high, adsorbent prepared by the present invention has good adsorption effect to various pollutant, adsorption efficiency is high, and easily remove, reuse effective, to soil, there is great improvement result, production process is simple, material source is extensive, there is great application prospect.
Detailed description of the invention
Below by instantiation, the present invention is described in detail.
An adsorbent for heavy metal-polluted soil can be adsorbed, be made up of the raw material of following weight portion (kilogram): calcium carbonate fiber 11, butyl titanate 36, Ludox 4, calcium aluminate 7, volcanic rock 75, PA6 nylon powder 8, gelatin 3, carbonic hydroammonium 2, diatomite 7, oyster shell whiting 8, deionized water are appropriate;
A kind of adsorbent that can adsorb heavy metal-polluted soil of the present invention, be made up of following concrete steps:
(1) absolute ethyl alcohol of butyl titanate and 4 times amount is mixed, magnetic agitation 1h, continuing magnetic agitation 2h again by being added in above-mentioned solution after short for calcium carbonate fiber cutting, slowly dripping deionized water, continue stirring after gel to be formed 0.6 hour, then to be added in baking oven that under 80 ° of C, to dry grinding for subsequent use;
(2) spend deionized water after volcanic rock being soaked 12h in concentrated sulfuric acid and grind to form fine powder to neutral oven dry, then mix with gelatin, PA6 nylon powder, in Muffle furnace, under 250 ° of C, calcine 1h, take out after cooling;
(3) by the product of step (1) gained and except calcium aluminate all the other remaining material mixing and stirring, adopt pressure to be that mixture is pressed into bead by the ball press of 20t, select particle size after screening for subsequent use as ball core at the bead of 5-15mm scope;
(4) product of step (2) gained and calcium aluminate are mixed, the bead of step (3) gained is placed in disc balling machine as kernel, add above-mentioned volcanic rock mixture, rolling pelletizing, volcanic rock is covered on ball core and forms shell, the composite sphere of gained is calcined under 550 ° of C 3h and become porous complex microsphere.
Example 0.5g adsorbent and mass concentration are that the methylene blue solution 500ml of 100mg/l reacts, and test index is as follows:
Clearance (%): 94.1;
Adsorbance (mg/g): 62.7;
Clearance (repeating 6 times, %): 68.1;
Compression strength (N/): 23;
Rate of wear (%): 1.1;
Polluted by copper rate (72h, %): 99;
Zinc adsorption rate (72h, %): 73;
Nickel adsorption rate (72h, %): 67;
Cadmium adsorption rate (72h, %): 78;
Plumbous adsorption rate (72h, %): 92.
Claims (2)
1. one kind can adsorb the adsorbent of heavy metal-polluted soil, it is characterized in that, be made up of the raw material of following weight portion: calcium carbonate fiber 8-15, butyl titanate 20-40, Ludox 3-5, calcium aluminate 6-8, volcanic rock 60-80, PA6 nylon powder 6-9, gelatin 3-4, carbonic hydroammonium 1-3, diatomite 6-7, oyster shell whiting 5-8, deionized water are appropriate.
2. a kind of adsorbent that can adsorb heavy metal-polluted soil according to claim 1, is characterized in that, be made up of following concrete steps:
(1) absolute ethyl alcohol of butyl titanate and 3-4 times amount is mixed, magnetic agitation 1h, magnetic agitation 2h is continued again by being added in above-mentioned solution after short for calcium carbonate fiber cutting, slow dropping deionized water, continue after gel to be formed to stir 0.5-1 hour, then to be added in baking oven that under 80 ° of C, to dry grinding for subsequent use;
(2) spend deionized water after volcanic rock being soaked 12h in concentrated sulfuric acid and grind to form fine powder to neutral oven dry, then mix with gelatin, PA6 nylon powder, in Muffle furnace, under 240-255 ° of C, calcine 0.5-1h, take out after cooling;
(3) by the product of step (1) gained and except calcium aluminate all the other remaining material mixing and stirring, employing pressure is that mixture is pressed into bead by the ball press of 10t-20t, selects particle size for subsequent use as ball core at the bead of 5-15mm scope after screening;
(4) product of step (2) gained and calcium aluminate are mixed, the bead of step (3) gained is placed in disc balling machine as kernel, add above-mentioned volcanic rock mixture, rolling pelletizing, volcanic rock is covered on ball core and forms shell, the composite sphere of gained is calcined under 550-600 ° of C 2-4h and become porous complex microsphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510259175.9A CN104888688A (en) | 2015-05-21 | 2015-05-21 | Adsorbent capable of absorbing soil heavy metal |
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| CN201510259175.9A CN104888688A (en) | 2015-05-21 | 2015-05-21 | Adsorbent capable of absorbing soil heavy metal |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105368459A (en) * | 2015-12-08 | 2016-03-02 | 江苏盖亚环境工程有限公司 | Metal chromium contaminated soil remediation agent and preparation method thereof |
| CN105368461A (en) * | 2015-12-08 | 2016-03-02 | 江苏盖亚环境工程有限公司 | Heavy metal ion polluted soil repairing material, and preparation method thereof |
| CN106076285A (en) * | 2016-06-16 | 2016-11-09 | 马鞍山市顺达环保设备有限公司 | The flue gas adsorbent that a kind of cost performance is high |
| CN106087874A (en) * | 2016-08-05 | 2016-11-09 | 东北师范大学 | A kind of ecological revetment and manufacture method thereof |
| CN106391691A (en) * | 2016-08-31 | 2017-02-15 | 云南能投生态环境科技有限公司 | Method for efficiently remedying heavy-metal-contaminated soil |
| CN106623379A (en) * | 2016-11-04 | 2017-05-10 | 上海立昌环境工程股份有限公司 | Resource recycling method of construction waste and repairing agent for heavy-metal-polluted soil |
| CN107236546A (en) * | 2017-06-23 | 2017-10-10 | 河北麦森钛白粉有限公司 | With the preparation method of soil remediation accelerator associated with plant and/or microorganism |
| CN107511126A (en) * | 2017-08-23 | 2017-12-26 | 欧诗漫生物股份有限公司 | Shell powder is used to prepare the application in heavy metal absorbent |
| CN111470598A (en) * | 2020-04-14 | 2020-07-31 | 广东旷野生态环境科技有限公司 | In-situ treatment material for polluted bottom mud of river and lake and preparation method thereof |
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| CN103962087A (en) * | 2014-04-16 | 2014-08-06 | 浙江大学 | Surface coating modified nano calcium oxide based CO2 adsorbing agent and preparation method thereof |
| CN104069794A (en) * | 2013-03-29 | 2014-10-01 | 中国石油化工股份有限公司 | Gas desulfurization and adsorption composition, preparation method thereof and method for desulfurizing sulfurous gases |
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| CN1171370A (en) * | 1997-07-15 | 1998-01-28 | 胡华龙 | Process for using petro-chemical mud to prepare adsorbent used to recover oil on water surface |
| CN101780288A (en) * | 2010-02-21 | 2010-07-21 | 赵溶 | Composite air purificant containing nanometer mineral matters and preparation method thereof |
| CN104069794A (en) * | 2013-03-29 | 2014-10-01 | 中国石油化工股份有限公司 | Gas desulfurization and adsorption composition, preparation method thereof and method for desulfurizing sulfurous gases |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105368459A (en) * | 2015-12-08 | 2016-03-02 | 江苏盖亚环境工程有限公司 | Metal chromium contaminated soil remediation agent and preparation method thereof |
| CN105368461A (en) * | 2015-12-08 | 2016-03-02 | 江苏盖亚环境工程有限公司 | Heavy metal ion polluted soil repairing material, and preparation method thereof |
| CN106076285A (en) * | 2016-06-16 | 2016-11-09 | 马鞍山市顺达环保设备有限公司 | The flue gas adsorbent that a kind of cost performance is high |
| CN106087874A (en) * | 2016-08-05 | 2016-11-09 | 东北师范大学 | A kind of ecological revetment and manufacture method thereof |
| CN106087874B (en) * | 2016-08-05 | 2018-07-03 | 东北师范大学 | A kind of ecological revetment and its manufacturing method |
| CN106391691A (en) * | 2016-08-31 | 2017-02-15 | 云南能投生态环境科技有限公司 | Method for efficiently remedying heavy-metal-contaminated soil |
| CN106623379A (en) * | 2016-11-04 | 2017-05-10 | 上海立昌环境工程股份有限公司 | Resource recycling method of construction waste and repairing agent for heavy-metal-polluted soil |
| CN107236546A (en) * | 2017-06-23 | 2017-10-10 | 河北麦森钛白粉有限公司 | With the preparation method of soil remediation accelerator associated with plant and/or microorganism |
| CN107236546B (en) * | 2017-06-23 | 2019-07-23 | 河北麦森钛白粉有限公司 | With plant and/or microorganism associated with soil remediation promotor preparation method |
| CN107511126A (en) * | 2017-08-23 | 2017-12-26 | 欧诗漫生物股份有限公司 | Shell powder is used to prepare the application in heavy metal absorbent |
| CN111470598A (en) * | 2020-04-14 | 2020-07-31 | 广东旷野生态环境科技有限公司 | In-situ treatment material for polluted bottom mud of river and lake and preparation method thereof |
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Application publication date: 20150909 |
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