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Filter medium for removing beryllium in drinking water and preparation method thereof

A technology for filtering media and drinking water, applied in the fields of filtration and separation, separation methods, chemical instruments and methods, etc., can solve the problem of low removal rate of beryllium, and achieve the effect of good adsorption effect, high removal rate, and damage-free effect.

Inactive Publication Date: 2010-12-01
QIDI ELECTRIC GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The current conventional water treatment process and activated carbon adsorption filtration have a low removal rate of beryllium

Method used

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  • Filter medium for removing beryllium in drinking water and preparation method thereof
  • Filter medium for removing beryllium in drinking water and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Weigh 110g of medical activated carbon powder, the particle size of the medical activated carbon is 74-89 microns;

[0038] (2) Weigh 120g of active clinoptilolite powder, the particle size of the active clinoptilolite powder is 44-124 microns;

[0039] (3) Weigh 290g of ultra-high molecular weight polyethylene powder, said ultra-high molecular weight polyethylene is an M-II type product of Beijing Dongfang Petrochemical Co., Ltd. Auxiliary Second Factory, and its molecular weight is 2.5 million;

[0040] (4) Weigh 100 grams of food-grade ammonium bicarbonate, with a purity of over 99.99%;

[0041] (5) Put the above four powders into a mechanical mixer and stir for 10 minutes to mix evenly;

[0042] (6) Fill the mixed powder into a tubular mold, press it under a hydraulic pressure of 0.9MPa, and sinter it at 250°C for 140 minutes;

[0043] (7) Naturally cool to 50°C and demould, that is, a tubular filter element with much finer pores.

[0044] The prepared filter element has a ...

Embodiment 2

[0046] (1) Weigh 120g of medical activated carbon powder, the particle size of the medical activated carbon is 74-89 microns;

[0047] (2) Weigh 130g of activated clinoptilolite powder, the particle size of the activated clinoptilolite powder is 44-124 microns;

[0048] (3) Weigh 300g of ultra-high molecular weight polyethylene powder. The ultra-high molecular weight polyethylene is an M-III type product from the Second Auxiliary Factory of Beijing Dongfang Petrochemical Co., Ltd., and its molecular weight is 3.5 million;

[0049] (4) Weigh 110 grams of food grade ammonium bicarbonate, with a purity of over 99.99%;

[0050] (5) Put the above four powders into a mechanical mixer and stir for 10 minutes to mix evenly;

[0051] (6) Fill the mixed powder into a tubular mold, press it under 0.8MPa hydraulic pressure, and sinter it at 280°C for 130 minutes;

[0052] (7) It is naturally cooled to 60°C and then demolded, that is, a tubular filter element with much finer pores.

[0053] The prepar...

Embodiment 3

[0055] (1) Weigh 105 g of medical activated carbon powder, the particle size of the medical activated carbon is 74-89 microns;

[0056] (2) Weigh 100 g of activated clinoptilolite powder, the particle size of the activated clinoptilolite powder is 44-124 microns;

[0057] (3) Weigh 260g of ultra-high molecular weight polyethylene powder, said ultra-high molecular weight polyethylene is an M-II type product of Beijing Dongfang Petrochemical Co., Ltd. Auxiliary Second Factory, and its molecular weight is 2.5 million;

[0058] (4) Weigh 120 grams of azodicarbonamide, with a purity of over 99.99%;

[0059] (5) Put the above four powders into a mechanical mixer and stir for 10 minutes to mix evenly;

[0060] (6) Fill the mixed powder into a tubular mold, press it under a hydraulic pressure of 0.6MPa, and sinter it at 220°C for 150 minutes;

[0061] (7) Naturally cooling to 40°C and then demolding, that is, a tubular filter element with much finer pores.

[0062] The prepared filter element has...

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Abstract

The invention discloses a filter medium for removing beryllium in drinking water and a preparation method thereof, and also relates to a filter element consisting of the filter medium, a water purification device and a drinking machine. The preparation method of the filter medium comprises the following steps of: a) mixing raw materials of active carbon powder, zeolite powder, super-high molecular weight polythene powder and a gas generation agent in a weight ratio of 100-120:90-130:220-300:100-140; and b) pressing, sintering and cooling the mixture obtained in the step a) in a die. The invention has the advantages that the prepared filter medium has a high removal rate (over 95 percent) of the beryllium in water, is suitable for the drinking water polluted by the beryllium to prevent a human body from being injured by the beryllium, is simple and convenient to use and has a low cost.

Description

Technical field [0001] The invention relates to a filter medium for removing beryllium in drinking water and a preparation method thereof, and a filter element, a water purifier and a water dispenser composed of the filter medium. Background technique [0002] The rapid development of industry has caused serious damage to water resources. The discharge of industrial wastewater into rivers and lakes has caused the deterioration of groundwater and surface water quality, resulting in the production of many harmful substances in the water, including many toxic metal substances and water pollution. More and more serious problems affecting people's lives. [0003] Beryllium is a kind of steel gray rare metal. It is a light metal. It has higher hardness than that of the metal of the same group. It has active chemical properties. It is easy to form a dense protective film on the surface and does not interact with water. It is slightly soluble in hot water and soluble in dilute hydrochloric...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30C02F1/28B01D39/14B01D29/21
Inventor 周奇迪
Owner QIDI ELECTRIC GROUP