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Heavy metal adsorption gel material and environment embattling treatment method

A gel material and heavy metal technology, applied in the field of environmental governance, can solve problems such as unsatisfactory adsorption effect, difficult to be widely used, complex adsorbent components, etc., to prevent secondary pollution hidden dangers, excellent adsorption performance, and preparation time short effect

Active Publication Date: 2015-11-18
ZHUHAI GUOJIA NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, activated carbon can be used to remove most heavy metals, and has strong adsorption capacity, but it has the disadvantages of high cost and complicated process operation, so it is difficult to be widely used.
[0004] Chinese patent application 200910223493.4 discloses a method for extracting heavy metal ions from soil. The heavy metal adsorption gel materials used include: carbon nanofibers, activated carbon, cationic surfactants, acrylamide, potassium acrylate, sludge particles and potassium sulfide. Acrylamide and potassium acrylate are used as water-absorbing agents, and activated carbon, carbon nanofibers and cationic surfactants are used as adsorbents. The composition of adsorbents is complex and the cost is high.
The gel capsule material has good heavy metal adsorption capacity, but the preparation reaction temperature is high and the time is long, so the adsorption effect on some heavy metal ions (such as cadmium ions) is not very ideal

Method used

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  • Heavy metal adsorption gel material and environment embattling treatment method
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  • Heavy metal adsorption gel material and environment embattling treatment method

Examples

Experimental program
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Effect test

Embodiment 1

[0030] Embodiment one heavy metal adsorption gel material

[0031] Weigh 5 parts by weight of sodium hydroxide and 1 part by weight of triethanolamine in a reactor, add magnetized water to prepare an alkali solution with a sodium hydroxide concentration of 3 mol / L, and add 20 parts by weight of acrylic acid, stirred, to obtain a neutralization solution; in the neutralization solution, sequentially add 38 parts by weight of bisacrylamide, 25 parts by weight of chitosan and ammonium persulfate of 70 parts by weight, stir, to obtain a solution to be polymerized ; The polymerization solution was polymerized at 55° C. for 2 hours, washed with deionized water, and dried to obtain a heavy metal adsorption gel material. The magnetized water is obtained by magnetizing deionized water through NdFeB magnets, and the magnetic induction of the NdFeB magnets is 5000 Gauss.

Embodiment 2

[0032] Example double metal adsorption gel material

[0033] Weigh 10 parts by weight of sodium hydroxide and 2 parts by weight of triethanolamine in a reactor, add magnetized water to prepare an alkali solution with a sodium hydroxide concentration of 3 mol / L, and add 38 parts by weight of acrylic acid, stirred, to obtain a neutralization solution; in the neutralization solution, successively add 55 parts by weight of water-soluble phenolic resin, 45 parts by weight of chitosan and ammonium persulfate of 90 parts by weight, stir, to obtain solution; the polymerization solution undergoes a polymerization reaction at 60° C. for 2 hours, washed with deionized water, and dried to obtain a heavy metal adsorption gel material. The magnetized water is obtained by magnetizing deionized water through NdFeB magnets, and the magnetic induction of the NdFeB magnets is 3000 Gauss.

Embodiment 3

[0034] Example Triple Metal Adsorbent Gel Material

[0035] Weigh 6 parts by weight of sodium hydroxide in the reactor, add magnetized water to prepare 3mol / L lye, add 20 parts by weight of acrylic acid in a water bath at 4°C, and stir to obtain a neutralization solution; Add 38 parts by weight of bisacrylamide, 25 parts by weight of chitosan and 70 parts by weight of sodium persulfate in sequence, stir to obtain the solution to be polymerized; Washing with ion water and drying to obtain heavy metal adsorption gel material. The magnetized water is obtained by magnetizing deionized water through NdFeB magnets, and the magnetic induction of the NdFeB magnets is 5000 Gauss.

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Abstract

The invention provides heavy metal adsorption gel material. A preparation method of the heavy metal adsorption gel material comprises A, weighing an alkali, putting the alkali into a reactor, adding magnetized water into the reactor to obtain an alkali solution, adding acrylic acid into the alkali solution in a water bath, and carrying out stirring to obtain a neutral solution, B, orderly adding a cross-linking agent, chitosan and an initiator into the neutral solution, and carrying out stirring to obtain a solution to be subjected to polymerization, and C, carrying out a polymerization process on the solution obtained by the step B at a temperature of 50-65 DEG C, and carrying out washing and drying to obtain the heavy metal adsorption gel material. The heavy metal adsorption gel material belongs to the technical field of environment treatment and has the advantages of excellent adsorption performances, large adsorption capacity, mild preparation reaction conditions, short preparation time and low cost.

Description

technical field [0001] The invention belongs to the technical field of environmental treatment, and in particular relates to a heavy metal adsorption gel material and an environmental array treatment method thereof. Background technique [0002] Heavy metals generally refer to metals with a density greater than 4.5 grams per cubic centimeter, such as lead (Pb), cadmium (Cd), chromium (Cr), mercury (Hg) and copper (Cu). With the rapid development of global economy, pollutants containing heavy metals enter the atmosphere, water and soil through various channels, causing serious environmental pollution. Heavy metals have significant biological toxicity and cannot be degraded by microorganisms in soil and water, but can only undergo mutual transformation, dispersion or migration of various forms. Heavy metal pollution in soil and water can affect the yield and quality of crops, and can endanger human health through the food chain, so it has attracted widespread attention from a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/28B01J20/30C02F1/28C02F1/62C02F11/00B09C1/00C08F251/00C08F220/06
Inventor 王海波王中元秦晓娟
Owner ZHUHAI GUOJIA NEW MATERIAL