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Composite ionic adsorption material and preparation method thereof

An ion adsorption and composite technology, applied in the field of materials, can solve the problems of difficult regeneration of activated carbon, limitation of adsorption effect, increase of treatment cost, etc., and achieve the effect of abundant reserves, enhanced ion exchange capacity and good treatment effect

Active Publication Date: 2013-05-01
青岛力创星碟环境工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] 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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  • Composite ionic adsorption material and preparation method thereof
  • Composite ionic adsorption material and preparation method thereof
  • Composite ionic adsorption material and preparation method thereof

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Effect test

Embodiment 1

[0035] A method for preparing a composite ion-adsorbing material, comprising the following steps:

[0036] In the first step, natural zeolite, medical stone and diatomite are respectively processed into 180-mesh fine powder;

[0037] In the second step, the above two fine powders of zeolite and medical stone are respectively modified in a water bath with 0.8mol / L 70°C NaCl solution, and the water bath time is 2.5 hours. 25mL of NaCl solution; then wash and filter with water respectively, and dry at 110°C for 2 hours after washing and filtering; obtain modified zeolite fine powder and modified medical stone fine powder for later use;

[0038] The third step is to take 80 parts of modified zeolite fine powder, 15 parts of modified medical stone fine powder, 10 parts of diatomite fine powder, 6 parts of 200 mesh activated carbon powder, and 2 parts of soluble starch, mix well, and add a certain amount of water Blend into a puree and set aside;

[0039]The fourth step is to shot...

Embodiment 2

[0043] A method for preparing a composite ion-adsorbing material, comprising the following steps:

[0044] In the first step, natural zeolite, medical stone and diatomite are respectively processed into 190-mesh fine powder;

[0045] In the second step, the above two fine powders of zeolite and medical stone are respectively modified in a water bath with 0.9mol / L 70°C NaCl solution, and the water bath time is 2.5 hours. 25mL of the above solution; then rinse and filter with water respectively, and dry at 110°C for 2 hours after rinsing and filtration; obtain modified zeolite fine powder and modified medical stone fine powder for later use;

[0046] The third step is to take 80 parts of modified zeolite fine powder, 10 parts of modified medical stone fine powder, 15 parts of diatomite fine powder, 6 parts of 200 mesh activated carbon powder, and 2 parts of soluble starch, mix well, and add a certain amount of water Blend into a puree and set aside;

[0047] The fourth step is...

Embodiment 3

[0051] A method for preparing a composite ion-adsorbing material, comprising the following steps:

[0052] In the first step, natural zeolite, medical stone and diatomite are respectively processed into 200 mesh fine powder;

[0053] In the second step, the above two fine powders of zeolite and medical stone are respectively modified in a water bath with 1.0mol / L 75°C NaCl solution, and the water bath time is 2.5 hours. 25mL of the above solution; then rinse and filter with water respectively, and dry at 110°C for 2 hours after rinsing and filtration; obtain modified zeolite fine powder and modified medical stone fine powder for later use;

[0054] The third step is to take 85 parts of modified zeolite fine powder, 10 parts of modified medical stone fine powder, 10 parts of diatomite fine powder, 6 parts of 200 mesh activated carbon powder, and 2 parts of soluble starch, mix well, and add a certain amount of water Blend into a puree and set aside;

[0055] The fourth step is...

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Abstract

The invention discloses a composite ionic adsorption material which is a spherical particle prepared by taking 80-85 parts of zeolitefine powder subjected to water bath modification by 0.8-1.0mol / L NaCl solution, 10-20 parts of medical stone fine powder, and 10-20 parts of kieselguhr fine powder as base materials, and 6 parts of activated carbon powder as a pore former and firing, wherein the diameter of the spherical particle is 2-12mm, and the pore volume of the spherical particle is 0.645-0.650 cm<3> / g. Activated zeolite is added to medical stone and kieselguhr to prepare the novel compound ionic material, and the zeolite, the medical stone and the kieselguhr jointly exert adsorption effects. The salt modified zeolite and medical stone increase an ionic exchange space and internal surface area, so that the adsorption capacity of the prepared composite adsorption material is further improved, and a better adsorption effect is achieved.

Description

technical field [0001] The invention relates to the field of materials, in particular to adsorption materials for water treatment. Background technique [0002] At present, water treatment methods mainly include biochemical treatment technology and physical and chemical treatment technology. 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 used adsorbents are activated carbon, ion exchange resins, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/18B01J20/28B01J20/30
Inventor 孙鲁芹王力王彩奇丁鸿昌宋景新
Owner 青岛力创星碟环境工程有限公司
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