Filtering medium for removing micro radioactive substances in water and preparation method thereof

A technology of radioactive substances and filter media, which is applied in the field of filter media and its preparation for removing trace radioactive substances in water, and achieves the effects of simple method, improvement of water quality, and wide source of raw materials

Inactive Publication Date: 2010-01-20
蒋永锋 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there is no method that can efficiently remove trace amounts of radioactive substances in drinking water

Method used

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  • Filtering medium for removing micro radioactive substances in water and preparation method thereof
  • Filtering medium for removing micro radioactive substances in water and preparation method thereof
  • Filtering medium for removing micro radioactive substances in water and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The specific steps of this embodiment include the following steps:

[0037] (1) Take ultra-high molecular weight polyethylene powder 250g (gram), and described ultra-high molecular weight polyethylene is the M-III type product of Beijing Dongfang Petrochemical Co., Ltd. auxiliary agent two factory, and its molecular weight is 3,500,000, and particle diameter is 74-89 microns;

[0038] (2) Take medical active carbon powder 100g, the particle diameter of described medical active carbon is 74~89 microns;

[0039] (3) Weigh 10 g of modified zeolite powder, which is obtained through the following method: the natural zeolite of 74 to 89 microns is cleaned with deionized water, dried, and soaked in 0.05 HCl 6 hours, then neutralized with alkali, cleaned with deionized water, and dried;

[0040] (4) Weigh 20 g of diatom concentrate, which is produced in Shengzhou City, Zhejiang Province, and has a particle size of 74 to 89 microns;

[0041] (5) Take by weighing modified atta...

Embodiment 2

[0049] The specific steps of this embodiment include the following steps:

[0050] (1) Weigh 350 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. Micron;

[0051] (2) Take medical activated carbon powder 10g, the particle diameter of described medical activated carbon is 74~89 microns;

[0052] (3) Weigh 100 g of modified zeolite powder, which is obtained through the following method: the natural zeolite of 74 to 89 microns is cleaned with deionized water, dried, and soaked in 0.05 HCl 8 hours, then neutralized with alkali, cleaned with deionized water, and dried;

[0053] (4) Weigh 100 g of diatom concentrate, which is produced in Shengzhou City, Zhejiang Province, and has a particle size of 74 to 89 microns;

[0054] (5) Take modified attapulgite powder 20g, described modified attapulgite powder obtains through following method processing:

[0...

Embodiment 3

[0062] The specific steps of this embodiment include the following steps:

[0063] (1) Weigh 300 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. Micron;

[0064] (2) Take medical activated carbon powder 50g, the particle diameter of described medical activated carbon is 74~89 microns;

[0065] (3) Weigh 35g of modified zeolite powder, which is obtained through the following method: the natural zeolite of 74 to 89 microns is cleaned with deionized water, dried, and soaked in 0.05 HCl 8 hours, then neutralized with alkali, cleaned with deionized water, and dried;

[0066] (4) Weigh 40g of diatom concentrate, which is produced in Shengzhou City, Zhejiang Province, and has a particle size of 74 to 89 microns;

[0067] (5) Take modified attapulgite powder 35g, described modified attapulgite powder obtains through following method processing:

[0068]...

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Abstract

The invention discloses a preparation method of a filtering medium for removing micro radioactive substances in water, comprising the following steps: a. mixing raw materials containing ultra-high molecular weight polyethylene, active carbon, zeolite powder, diatomite powder, attapulgite powder, magnesium hydroxide powder and a gas generation agent according to the weight ratio of 250-350 to 20-100 to 10-100 to 20-110 to 20-100 to 20-100 to 70-150; and b. pressing, sintering and cooling a mixture obtained in the step a in a mould. The invention also discloses a filtering medium prepared by using the preparation method. The invention has the advantage that the disclosed technical scheme can remove the micro radioactive substances in the water, and the removing rate can reach more than 96 percent.

Description

technical field [0001] The invention relates to a filter medium for removing trace radioactive substances in water and a preparation method thereof. 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] Natural radioactive substances and artificial radioactive substances include uranium, cesium, plutonium, iodine, thorium, radon and actinium, etc. These radioactive substances are easy to enter groundwater and surface water, are highly toxic, have a long half-life, are difficult to degrade, and are likely to induce various diseases. Such as aberration, mu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30B01D39/20C02F1/28C02F1/58
Inventor 蒋永锋王林双浦坚栾云堂
Owner 蒋永锋
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