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Low-cost composite magnetic microsphere material for sewage treatment and preparation method of low-cost composite magnetic microsphere material

A composite magnetic and sewage treatment technology, applied in water/sewage treatment, adsorbed water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of difficulty in large-scale production, low preparation efficiency, low adsorption efficiency, etc. Achieve the effects of easy large-scale production, simple preparation process and improved adsorption efficiency

Inactive Publication Date: 2019-01-18
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] It can be seen that the adsorption efficiency of hydrogel and magnetic microspheres used in sewage treatment in the prior art is low. Although the traditional magnetic hydrogel composite material has improved the adsorption capacity to a certain extent, it also has low preparation efficiency, high cost, and difficulty issues of mass production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Grind long oyster shells into a porous powder with an average particle size of 280nm, then disperse 26kg of oyster shell powder in 57kg of deionized water, and disperse ultrasonically to obtain a dispersion of oyster shell powder, then mix 17kg of Fe with an average particle size of 160nm 3 o 4 The powder is added to the oyster shell powder dispersion liquid, ultrasonically dispersed and stirred evenly, and the oyster shell powder and nano Fe 3 o 4 The mixed solution; then 24kg polyacrylamide is dissolved in 57kg deionized water, then add 2kg diethylene glycol, 17kg oyster shell powder and nano-Fe 3 o 4 The mixed solution is ultrasonically dispersed and stirred evenly, and then passed into the spray dryer, and the magnetic hydrogel microspheres are obtained by spraying through a spray disc with a pore size of 30 μm under a spray pressure of 2.5 MPa, which is a low-cost solution for sewage treatment. Composite magnetic microsphere material.

[0030] Test Methods:

...

Embodiment 2

[0034] Grind dense scale oyster shells into a porous powder with an average particle size of 200nm, then disperse 20kg of oyster shell powder in 65kg of deionized water, and disperse ultrasonically to obtain a dispersion of oyster shell powder, then mix 15kg of Fe with an average particle size of 100nm 3 o 4 The powder is added to the oyster shell powder dispersion liquid, ultrasonically dispersed and stirred evenly, and the oyster shell powder and nano Fe 3 o 4 The mixed solution; then 20kg polyvinylpyrrolidone is dissolved in 64kg deionized water, then add 1kg diethylene glycol, 15kg oyster shell powder and nano Fe 3 o4 The mixed solution is ultrasonically dispersed and stirred evenly, and then passed into a spray dryer, and sprayed through a spray disc with a pore size of 20 μm under a spray pressure of 2 MPa to prepare magnetic hydrogel microspheres, which are low-cost composites for sewage treatment. Magnetic microsphere material.

[0035] The test method is consistent...

Embodiment 3

[0037] Grind Dalian Bay oyster shells into a porous powder with an average particle size of 400nm, then disperse 30kg of oyster shell powder in 50kg of deionized water, and disperse ultrasonically to obtain a dispersion of oyster shell powder, then mix 20kg of Fe with an average particle size of 200nm 3 o 4 The powder is added to the oyster shell powder dispersion liquid, ultrasonically dispersed and stirred evenly, and the oyster shell powder and nano Fe 3 o 4 The mixed solution; then 30k polyvinyl alcohol is dissolved in 48kg deionized water, then add 2kg pentaerythritol, 20kg oyster shell powder and nano Fe 3 o 4 The mixed solution is ultrasonically dispersed and stirred evenly, and then passed into a spray dryer, and sprayed through a spray disc with a pore size of 40 μm under a spray pressure of 3 MPa to prepare magnetic hydrogel microspheres, which are low-cost composites for sewage treatment. Magnetic microsphere material.

[0038] The test method is consistent with...

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PUM

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Abstract

The invention belongs to the technical field of sewage treatment and provides a low-cost composite magnetic microsphere material for sewage treatment and a preparation method of the low-cost compositemagnetic microsphere material. The preparation method comprises the following steps of preparing a mixed solution, in which oyster shell powder and nanometer Fe3O4 are dispersed, firstly, then mixingthe mixed solution with water-soluble macromolecules and an aqueous crosslinking agent solution, and performing spray drying to prepare magnetic hydrogel microspheres, i.e. the low-cost composite magnetic microsphere material for sewage treatment. Compared with the traditional method, in the preparation method, for the prepared composite magnetic microsphere material, the magnetic hydrogel microspheres are compounded with the oyster shell powder and a magnetic material, the adsorption ability of a composite to pollutants in water is greatly improved, and sewage is high in treatment efficiencyand convenient to recover; and meanwhile, the preparation technology is simple, is low in cost and liable in scale production and can be widely used in the field of sewage treatment.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment and provides a low-cost composite magnetic microsphere material and a preparation method for sewage treatment. Background technique [0002] Industrial wastewater contains a large number of pollutants such as heavy metal ions and organic dyes, and its treatment has become a research hotspot in recent years. Compared with traditional treatment methods such as electrodeposition and filtration, physical adsorption has the advantages of low cost, simple operation, and no secondary pollution. However, traditional adsorption materials including activated carbon, wood chips, coal cinders, and volcanic ash generally have the disadvantages of low adsorption efficiency, poor selective adsorption, and difficulty in recycling. Therefore, the research and application of new adsorption materials for sewage treatment are widely favored. [0003] The porous structure inside the hydrogel endows it with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/28B01J20/30C02F1/28
CPCB01J20/06B01J20/24B01J20/267B01J20/28009B01J20/28021B01J20/28047C02F1/288
Inventor 陈庆司文彬
Owner CHENDU NEW KELI CHEM SCI CO LTD