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A composite ion-adsorbing carbon membrane and its preparation method

A kind of ion adsorption and composite technology, applied in the field of materials, can solve the problems of difficult regeneration of activated carbon, increase of treatment cost, limitation of adsorption effect, etc., and achieve the effect of abundant reserves, good treatment effect and strong electrostatic attraction

Active Publication Date: 2016-08-24
青岛力创星碟环境工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Activated carbon adsorbent has good adsorption effect and excellent performance, but due to the difficulty of regeneration of activated carbon and high cost, its application has great limitations; ion exchange resin has excellent ability to remove inorganic ions, has regeneration ability and simple device, but its exchange The capacity is limited, the resin will dissolve organic matter, the surface will have microbial reproduction, and the disintegrated fragments of the resin will cause the increase of particles in the water, etc.; natural mineral adsorption materials are rich in resources, large in storage, low in cost, efficient and fast, but simple Using untreated natural substances as adsorbents has limited adsorption effect; solid waste adsorbents include slag, cinder, fly ash, powder after plant straw incineration, etc. They are low in cost and have a large specific surface area. Sewage treatment has important applications, but it is not easy to regenerate, which has caused secondary pollution problems; inorganic adsorbents have better treatment effects, and are easy to use in combination with chemical methods, but require relatively high alkaline conditions. Increased processing costs in

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  • A composite ion-adsorbing carbon membrane and its preparation method
  • A composite ion-adsorbing carbon membrane and its preparation method
  • A composite ion-adsorbing carbon membrane and its preparation method

Examples

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Embodiment 1

[0037] A composite ion-adsorbing carbon membrane, which is made of 15 parts of modified zeolite fine powder, 20 parts of modified medical stone fine powder, 10 parts of diatomite fine powder as base material, and 30 parts of activated carbon fiber as pore-forming agent , 10 parts of humic acid as a modifier, 5 parts of aluminum dihydrogen phosphate as a binder, through mechanical mixing, banburying, pressing, and low-temperature firing, a network void-like film with a thickness of 0.3 mm is formed.

[0038] The preparation method of composite ion adsorption carbon film of the present invention is as follows:

[0039]The first step is to process the natural zeolite into 150-200 mesh fine powder, and then use 0.8-1.0mol / L NaCl solution for water bath modification. The amount of NaCl solution in the water bath requires 25mL of NaCl solution per 1g of fine powder. The temperature is 70-75°C, and the water bath time is 2.5 hours; then rinse and filter with clean water, and then dry...

Embodiment 2

[0051] A composite ion-adsorbing carbon membrane, which is made of 10 parts of modified zeolite fine powder, 25 parts of modified medical stone fine powder, 5 parts of diatomite fine powder as base material, and 35 parts of activated carbon fiber as pore-forming agent , 10 parts of humic acid as a modifier, 5 parts of aluminum dihydrogen phosphate as a binder, through mechanical mixing, banburying, pressing, and low-temperature firing, a network void-like film with a thickness of 0.5 mm is formed.

[0052] The preparation method of composite ion adsorption carbon film of the present invention is as follows:

[0053] The first step is to process the natural zeolite into 150-200 mesh fine powder, and then use 0.8-1.0mol / L NaCl solution for water bath modification. The amount of NaCl solution in the water bath requires 25mL of NaCl solution per 1g of fine powder. The temperature is 70-75°C, and the water bath time is 2.5 hours; then rinse and filter with clean water, and then dry...

Embodiment 3

[0065] A composite ion-adsorbing carbon membrane, which is made of 20 parts of modified zeolite fine powder, 15 parts of modified medical stone fine powder, 15 parts of diatomite fine powder as base material, and 35 parts of activated carbon fiber as pore-forming agent , 10 parts of humic acid as a modifier, 5 parts of aluminum dihydrogen phosphate as a binder, after mechanical mixing, banburying, pressing, and low-temperature firing, a network void-like film with a thickness of 0.7 mm is formed.

[0066] The preparation method of composite ion adsorption carbon film of the present invention is as follows:

[0067] The first step is to process the natural zeolite into 150-200 mesh fine powder, and then use 0.8-1.0mol / L NaCl solution for water bath modification. The amount of NaCl solution in the water bath requires 25mL of NaCl solution per 1g of fine powder. The temperature is 70-75°C, and the water bath time is 2.5 hours; then rinse and filter with clean water, and then dry ...

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Abstract

The invention discloses a composite ion-adsorption carbon membrane and a preparation method thereof, which comprises 10-20 parts of modified zeolite fine powder, 15-25 parts of modified medical stone fine powder, and 5-15 parts of diatomite fine powder. 25-35 parts of activated carbon as a pore-forming agent, 10 parts of humic acid as a modifier, and 5 parts of aluminum dihydrogen phosphate as a binder, through mechanical mixing, banburying, pressing, and low-temperature firing. The resulting thickness is a void-like film of 0.3-1.0 millimeters; the above-mentioned parts are parts by weight; the present invention makes a novel composite adsorption carbon film material with zeolite, medical stone, humic acid and diatomite activated carbon fiber, and exerts adsorption and filtration collective effect. After humic acid modification, the ion exchange space and inner surface area are increased, so that the prepared composite adsorption filter material further enhances the adsorption capacity and filtration capacity, and achieves better dual effects of adsorption and filtration.

Description

technical field [0001] The invention relates to the field of materials, in particular to adsorption and air separation membranes for water treatment. Background technique [0002] At present, water treatment methods mainly include biochemical treatment technology, physical and chemical treatment technology and membrane separation technology. [0003] In the physical and chemical treatment technology, the adsorption method occupies a pivotal position. It is a method in which one or more substances in water are adsorbed on the solid surface and removed by using porous solid substances. Because of its advantages of high efficiency, economy, simplicity, and good selectivity, it has unique application value especially in the treatment of low-concentration heavy metal wastewater that cannot be treated by traditional methods. There are many research reports on the application of adsorption method in wastewater treatment and water purification treatment. So far, the most commonly...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/24B01J20/28B01J20/30C02F1/28
CPCY02W10/37
Inventor 王彩奇周倩孙鲁芹丁鸿昌苏顺建常仁勇
Owner 青岛力创星碟环境工程有限公司
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