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Filter medium, preparation method thereof, filter element and water purification device

A filter medium and water removal technology, applied in the direction of filtration separation, separation method, gravity filter, etc., to achieve the effect of low cost, simple method and wide source of raw materials

Inactive Publication Date: 2010-12-01
周奇迪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no preparation method that can prepare a filter medium that has a good removal effect on acrylonitrile

Method used

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  • Filter medium, preparation method thereof, filter element and water purification device
  • Filter medium, preparation method thereof, filter element and water purification device
  • Filter medium, preparation method thereof, filter element and water purification device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The specific steps of this embodiment include the following steps:

[0029] (1) Weigh 200 g of ultra-high molecular weight polyethylene powder. The ultra-high molecular weight polyethylene is the M-III product of Beijing Dongfang Petrochemical Co., Ltd. Auxiliary No. 2 Factory, with a molecular weight of 3.5 million and a particle size of 89 to 104 UHMWPE powder of 89-104 microns can be obtained by screening with 140-mesh and 170-mesh sieves;

[0030] (2) Take medical active carbon powder 180g, the particle diameter of described medical active carbon is 74~89 microns, utilize 170 order and 200 order sieves to screen and can obtain the medical active carbon powder of 74~89 microns;

[0031] (3) Weighing 150 g of attapulgite powder, the particle size of the attapulgite powder is 74 to 89 microns, and the attapulgite powder of 74 to 89 microns can be obtained by screening with 170 mesh and 200 mesh sieves;

[0032] (4) take copper powder 20g, the particle diameter of descri...

Embodiment 2

[0038] The specific steps of this embodiment include the following steps:

[0039] (1) Weigh 300 g of ultra-high molecular weight polyethylene powder. The ultra-high molecular weight polyethylene is the M-II product of Beijing Dongfang Petrochemical Co., Ltd. Auxiliary No. UHMWPE powder of 89-104 microns can be obtained by screening with 140-mesh and 170-mesh sieves;

[0040] (2) Take medical active carbon powder 240g, the particle diameter of described medical active carbon is 74~89 microns, utilize 170 order and 200 order sieves to screen and can obtain the medical active carbon powder of 74~89 microns;

[0041] (3) Weigh 200 g of attapulgite powder, the particle size of which is 74 to 89 microns, and use 170 mesh and 200 mesh sieves to screen to obtain attapulgite powder of 74 to 89 microns;

[0042] (4) take copper powder 5g, the particle diameter of described copper powder is below 74 microns, utilizes 200 order sieves to screen and promptly can obtain the copper powder ...

Embodiment 3

[0048] The specific steps of this embodiment include the following steps:

[0049] (1) Weigh 280 g of ultra-high molecular weight polyethylene powder. The ultra-high molecular weight polyethylene is the M-II product of the No. 2 Auxiliary Factory of Beijing Dongfang Petrochemical Co., Ltd., with a molecular weight of 2.5 million and a particle size of 89 to 104 UHMWPE powder of 89-104 microns can be obtained by screening with 140-mesh and 170-mesh sieves;

[0050] (2) Take medical active carbon powder 120g, the particle diameter of described medical active carbon is 74~89 microns, utilize 170 order and 200 order sieves to screen and can obtain the medical active carbon powder of 74~89 microns;

[0051] (3) Weighing 100 g of attapulgite powder, the particle size of the attapulgite powder is 74 to 89 microns, and the attapulgite powder of 74 to 89 microns can be obtained by screening with 170 mesh and 200 mesh sieves;

[0052] (4) take copper powder 15g, the particle diameter o...

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Abstract

The invention discloses a preparation method of a filter medium for removing acrylonitrile in water, which comprises the following steps: a) mixing polyethylene with ultra-high molecular weight, activated carbon, attapulgite powder, copper powder and a pore-generating agent, wherein the weight ratio of the polyethylene with the ultra-high molecular weight to the activated carbon to the attapulgite powder to the copper powder to the pore-generating agent is 200-300: 90-240: 100-200: 5-20: 100-120; and b) pressing the mixture obtained in the step a) in a die, sintering and cooling. The invention further discloses the filter medium prepared by utilizing the preparation method, a filter element utilizing the filter medium and a water purification device. Compared with the prior art, the filter medium has the advantages of being capable of removing the acrylonitrile in the water, leading the removal rate to be more than 95-99% and further achieving the purpose of improving the water quality; furthermore, the method is simple, raw materials for preparing the filter medium are wide, and the cost is low.

Description

technical field [0001] The invention relates to a filter medium for removing acrylonitrile in water, a preparation method thereof, a filter element and a water purification device using the filter medium. Background technique [0002] The rapid development of industry and agriculture has led to serious damage to water resources. Industrial wastewater is discharged into rivers and lakes, pesticides, insecticides, etc. are used in large quantities, and domestic garbage and domestic wastewater are discharged indiscriminately. As a result, many harmful substances are produced in the water. Water pollution has increasingly become a serious problem affecting people's lives. [0003] Acrylonitrile is a colorless liquid with a boiling point of 78°C. The molecular structure is CH 2 =CH-C≡N. Acrylonitrile is an important raw material for organic synthesis. Acrylonitrile is widely used in coatings, adhesives, medicines, etc. It is also used in the synthesis of synthetic fibers such...

Claims

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Application Information

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IPC IPC(8): B01J20/20B01J20/30C02F1/28B01D39/14B01D29/31
Inventor 周奇迪
Owner 周奇迪
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