CN103084152A - Treatment method for effectively improving microstructures and absorption properties of attapulgite and kieselguhr - Google Patents
Treatment method for effectively improving microstructures and absorption properties of attapulgite and kieselguhr Download PDFInfo
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- CN103084152A CN103084152A CN2012105579562A CN201210557956A CN103084152A CN 103084152 A CN103084152 A CN 103084152A CN 2012105579562 A CN2012105579562 A CN 2012105579562A CN 201210557956 A CN201210557956 A CN 201210557956A CN 103084152 A CN103084152 A CN 103084152A
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- attapulgite
- diatomite
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- kieselguhr
- absorption property
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Abstract
The invention discloses a treatment method for effectively improving microstructures and absorption properties of attapulgite and kieselguhr. By using high-temperature pyrolysis, sputtering and Coulomb explosion effect generated by physical irradiation, a nanorod crystal structure inside the attapulgite is effectively decomposed and dispersed, and the specific surface area of the attapulgite is increased, and thus the absorption property of the attapulgite can be remarkably improved. Meanwhile, impurities in ducts of the kieselguhr can be removed, the porosity is increased, and thus the absorption property is improved. The modified clay can be used as a pesticide adhering assistant and an efficient absorbing agent for use.
Description
Technical field
The present invention relates to a kind of nano-material modified field, be specifically related to a kind of efficient convenient remarkable new method of improving natural clay attapulgite, diatomite microstructure and adsorptivity.
Background technology
Concave-convex clay rod refers to a kind of clay mineral take attapulgite as key component, it is a kind of hydrous magnesium aluminosilicate with fibrous crystalline structure, as a kind of natural nano structure mineral material with nanochannel structure, Concave-convex clay rod is owing to having larger specific area and certain ion exchangeable, can be used as adsorbent, be widely used on some organic dyestuff of Adsorption.Natural attapulgite rod crystal fiber easily flocks together and forms many brilliant bundles, is the rick structure, and dispersiveness is lower, and its adsorption capacity also is subject to certain limitation.Therefore, in order effectively to improve the attapulgite absorption property, need to carry out modification to it, improve its dispersive property.
Diatomite is generally to be formed by the dead later silicate remains of the unicellular alga that is referred to as diatom, and its main component is SiO
2(usually surpassing 70%), and contain a small amount of Fe
2O
3, CaO, MgO, Al
2O
3And organic impurities, usually be light yellow or light grey.Micro-nano pore passage structure due to the diatomite uniqueness has than macroporosity and specific area, is commonly used for insulation material, filtering material, filler, grinding-material, waterglass raw material, decolorizer and super-cell, catalyst carrier etc.Yet the existence of impurity is stopped up the part hole, causes its porosity and specific area to descend, and has affected its absorption property.Therefore, in order to bring into play better diatomaceous premium properties, be necessary to remove its impurity, dredge its duct, improve its porosity.
At present, domestic for attapulgite and diatomaceous method of modifying research mainly concentrate on mechanical disruption, hydrothermal treatment consists, high-temperature process, pickling, organically-modified in the middle of.Although these methods improve to a certain extent the dispersed of attapulgite or improve diatomaceous porosity, yet they often exist that energy consumption is higher, complex steps or introduce the shortcoming such as secondary pollution.For this reason, we have developed more efficient, convenient, environmental friendliness, method of modifying with low cost, namely by Physics Irradiation, attapulgite (or diatomite) are processed, to significantly improve its dispersion and absorption property.Simultaneously, we add in traditional agricultural chemicals by attapulgite and the diatomite after with radiation modification, to improve agricultural chemicals at the adhesion property of blade face and soil surface, realize that the migration in surrounding medium is controlled to pesticide molecule, thereby reduce agricultural chemicals to the pollution risk of environment.In addition, because the adsorption by clay performance after modification significantly improves, can be used as efficient waste water (heavy metal, organic pollution etc.) inorganic agent.
Summary of the invention
The invention provides a kind of efficient convenient remarkable processing method of improving attapulgite, diatomite microstructure and absorption property, its principle is: can effectively the brilliant aggregation of attapulgite rod be dissociated by sputter, high temperature pyrolysis and COULOMB EXPLOSION effect that high-energy electron beam irradiation produces, thus the dispersiveness of raising attapulgite; Impurity in the diatomite duct can be removed simultaneously, improve its aperture and pore volume and distribute, thereby improve diatomaceous porosity.Attapulgite after modification and diatomite can effectively be wrapped in more pesticide molecule in attapulgite micro-nano network and diatomite hole, the good rheological property of recycling clay is by the coarse structure retardance of plant leaf surface, thereby can strengthen the adhesion property of agricultural chemicals, improve ability to resist splash erosion, reduce agricultural chemicals and run off.In addition, attapulgite modified and diatomite can replace conventional clay, as the High-efficient Water adsorbent, processes heavy metal and organic polluting water.
The technical solution used in the present invention is:
A kind of efficient convenient remarkable processing method of improving attapulgite, diatomite microstructure and absorption property, its concrete steps are as follows:
(1) 5-30kg attapulgite or diatomaceous snakeskin bag will be housed, be respectively 20-100 second through the high-energy electron beam irradiation of 5-15MeV energy and 10-100keV dosage successively as required, get final product;
(2) clay after irradiation is added in agricultural chemicals according to the 10-20% mass ratio, make the agricultural chemicals of controlled loss, formulation contains wettable powder, emulsion, granule etc.;
(3) with the clay after irradiation as adsorbent, for the treatment of the waste water that contains heavy metal ion or organic pollution, addition is controlled in the 0.1-5g/L scope according to pollutant levels.
The integral thickness of described snakeskin bag or carton is controlled at 20-30cm.
Beneficial effect of the present invention is:
1. effectively improve the attapulgite dispersive property, reduce the diatomite impurity content, improve the diatomite porosity;
2, strengthen agricultural chemicals on the blade face or the adhesion property of soil surface, reduce its loss;
3, improve clay to the absorption property of heavy metal ion or organic pollution;
4, easy and simple to handle, but the scale processing, (100-500 yuan/ton) with low cost;
5, environmental friendliness does not produce three industrial wastes (waste water, waste gas and waste residue).
The specific embodiment
Embodiment 1
To the snakeskin bag of 20 kg attapulgites be housed, snakeskin bag integral thickness is controlled at 30cm, is that 10MeV and dosage are the high-energy electron beam irradiation of 40keV through energy successively, is respectively 30 seconds, 50 seconds.Then according to 20% mass ratio, add in the solid pesticide chlopyrifos, make wettable powder, be controlled loss agricultural chemicals.
Embodiment 2
To the snakeskin bag of 10 kg attapulgites be housed, snakeskin bag integral thickness is controlled at 30cm, is that 10MeV and dosage are the high-energy electron beam irradiation of 30keV through energy, is respectively 30 seconds, 80 seconds.Then as adsorbent, according to concentration Adsorption of Heavy Metals (chromium ion) waste water of 1g/L, be 0.1g/L through chromium ion concentration after attapulgite absorption.
Embodiment 3
The 30 diatomaceous snakeskin bags of kg will be housed, and snakeskin bag integral thickness is controlled at 30cm, is that 15MeV and dosage are the high-energy electron beam irradiation of 40keV through energy, is respectively 30 seconds, 50 seconds.Then adhere to auxiliary agent as agricultural chemicals, add in the liquid pesticidal chlopyrifos according to 10% mass ratio, make suspending agent, be controlled loss agricultural chemicals.
Embodiment 4
The 30 diatomaceous snakeskin bags of kg will be housed, and snakeskin bag integral thickness is controlled at 30cm, is that 15MeV and dosage are the 40keV high-energy electron beam irradiation through energy, is respectively 30 seconds, 50 seconds.Then as adsorbent, according to the concentration absorption wastewater containing methylene blue of 1g/L, be 0.1g/L through methylene blue concentration after kieselguhr adsorption.
Claims (2)
1. an efficient convenient remarkable processing method of improving attapulgite, diatomite microstructure and absorption property, is characterized in that, its concrete steps are as follows:
(1) 5-30kg attapulgite or diatomaceous snakeskin bag will be housed, be respectively 20-100 second through the high-energy electron beam irradiation of 5-15MeV energy and 10-100keV dosage successively as required, get final product;
(2) clay after irradiation is added in agricultural chemicals according to the 10-20% mass ratio, make the agricultural chemicals of controlled loss, formulation contains wettable powder, emulsion, granule etc.;
(3) with the clay after irradiation as adsorbent, for the treatment of the waste water that contains heavy metal ion or organic pollution, addition is controlled in the 0.1-5g/L scope according to pollutant levels.
2. a kind of efficient convenient remarkable processing method of improving attapulgite, diatomite microstructure and absorption property according to claim 1, is characterized in that, the integral thickness of described snakeskin bag or carton is controlled at 20-30cm.
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| CN201210557956.2A CN103084152B (en) | 2012-12-20 | 2012-12-20 | A kind of efficient processing method improving attapulgite, diatomite microstructure and absorption property |
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Cited By (10)
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|---|---|---|---|---|
| CN103355291A (en) * | 2013-05-10 | 2013-10-23 | 中国科学院合肥物质科学研究院 | Novel efficient method for improving adhesive capability of pesticide |
| CN104941397A (en) * | 2015-06-19 | 2015-09-30 | 辛全宏 | Diatomite drying agent and production process thereof |
| CN105165825A (en) * | 2015-09-21 | 2015-12-23 | 中国科学院合肥物质科学研究院 | Coating agent reinforcing agent and preparation method and application thereof |
| CN106538590A (en) * | 2015-09-21 | 2017-03-29 | 中国科学院微生物研究所 | A kind of seed dressing synergist and preparation method and application |
| CN106732335A (en) * | 2016-12-21 | 2017-05-31 | 佛山市因诺维生物科技有限公司 | A kind of kaolinite for the treatment of field of Environment Protection water body and preparation method thereof |
| CN107519946A (en) * | 2017-07-28 | 2017-12-29 | 河南工业大学 | A kind of method for improving aluminium dihydrogen tripolyphosphate/load sulphur tripolite composite catalyst activity |
| CN108102749A (en) * | 2017-12-29 | 2018-06-01 | 中国科学院合肥物质科学研究院 | A kind of preparation method of diesel oil nano combustion improver |
| CN109852955A (en) * | 2019-04-17 | 2019-06-07 | 西南科技大学 | A kind of method of titanium alloy surface chemical nickel plating boron lead high-hard antiwear coating |
| CN110665460A (en) * | 2019-10-10 | 2020-01-10 | 邓晖 | Irradiation modified attapulgite/activated carbon composite carbon rod and preparation method thereof |
| CN112919967A (en) * | 2021-03-02 | 2021-06-08 | 青海高原地沣肥业有限公司 | Method for preparing organic fertilizer from municipal sludge |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103355291A (en) * | 2013-05-10 | 2013-10-23 | 中国科学院合肥物质科学研究院 | Novel efficient method for improving adhesive capability of pesticide |
| CN104941397A (en) * | 2015-06-19 | 2015-09-30 | 辛全宏 | Diatomite drying agent and production process thereof |
| CN105165825A (en) * | 2015-09-21 | 2015-12-23 | 中国科学院合肥物质科学研究院 | Coating agent reinforcing agent and preparation method and application thereof |
| CN106538590A (en) * | 2015-09-21 | 2017-03-29 | 中国科学院微生物研究所 | A kind of seed dressing synergist and preparation method and application |
| CN106732335A (en) * | 2016-12-21 | 2017-05-31 | 佛山市因诺维生物科技有限公司 | A kind of kaolinite for the treatment of field of Environment Protection water body and preparation method thereof |
| CN107519946A (en) * | 2017-07-28 | 2017-12-29 | 河南工业大学 | A kind of method for improving aluminium dihydrogen tripolyphosphate/load sulphur tripolite composite catalyst activity |
| CN108102749A (en) * | 2017-12-29 | 2018-06-01 | 中国科学院合肥物质科学研究院 | A kind of preparation method of diesel oil nano combustion improver |
| CN108102749B (en) * | 2017-12-29 | 2020-02-18 | 中国科学院合肥物质科学研究院 | Preparation method of diesel nano combustion improver |
| CN109852955A (en) * | 2019-04-17 | 2019-06-07 | 西南科技大学 | A kind of method of titanium alloy surface chemical nickel plating boron lead high-hard antiwear coating |
| CN110665460A (en) * | 2019-10-10 | 2020-01-10 | 邓晖 | Irradiation modified attapulgite/activated carbon composite carbon rod and preparation method thereof |
| CN112919967A (en) * | 2021-03-02 | 2021-06-08 | 青海高原地沣肥业有限公司 | Method for preparing organic fertilizer from municipal sludge |
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| CN103084152B (en) | 2015-11-18 |
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