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

A technology for filtering media and drinking water, applied in chemical instruments and methods, water pollutants, water/sewage treatment, etc., can solve the problems of low removal rate, complex manganese removal process, long processing time, etc. Low cost and fast removal effect

Inactive Publication Date: 2010-09-01
QIDI ELECTRIC GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Traditional manganese removal methods include contact filtration, biological method, oxidation method, immobilized biological activated carbon method, etc., but these manganese removal processes are complex and take a long time to process. The biological method takes 40 days only to form a film, and the removal rate is low

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Weighing 110g of 13X zeolite molecular sieve powder, the particle diameter of said 13X zeolite molecular sieve powder is 74~89 microns;

[0029] (2) Take ultra-high molecular weight polyethylene powder 250g, described ultra-high molecular weight polyethylene is the M-II type product of Beijing Dongfang Petrochemical Co., Ltd. Auxiliary No. 2 Factory, and its molecular weight is 2.5 million;

[0030] (3) Take by weighing 55g of medical activated carbon powder, the particle diameter of described medical activated carbon is 74~89 microns;

[0031] (4) Take 70 grams of food-grade ammonium bicarbonate, and the purity reaches more than 99.99%;

[0032] (5) Put the above four powders into a mechanical stirrer and stir for 10 minutes to mix evenly;

[0033] (6) Fill the mixed powder into a tubular mold, press under a hydraulic pressure of 0.9MPa, and sinter at a temperature of 250° C. for 140 minutes;

[0034] (7) Naturally cool to 50°C and then release the mold, that is,...

Embodiment 2

[0037] (1) Take 150g of 13X zeolite molecular sieve powder, the particle diameter of the 13X zeolite molecular sieve powder is 74~89 microns;

[0038] (2) Take ultra-high molecular weight polyethylene powder 300g, said ultra-high molecular weight polyethylene is the M-III type product of Beijing Dongfang Petrochemical Co., Ltd. Auxiliary No. 2 Factory, and its molecular weight is 3.5 million;

[0039] (3) Take medical active carbon powder 70g, the particle diameter of described medical active carbon is 74~89 microns;

[0040] (4) Take 115 grams of food-grade ammonium bicarbonate, and the purity reaches more than 99.99%;

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

[0042] (6) Fill the mixed powder into a tubular mold, press under a hydraulic pressure of 0.8 MPa, and sinter at a temperature of 280° C. for 130 minutes;

[0043] (7) Naturally cool to 60°C and then demold, that is, a tubular filter element with many fi...

Embodiment 3

[0046] (1) Take 200g of 13X zeolite molecular sieve powder, the particle diameter of the 13X zeolite molecular sieve powder is 74~89 microns;

[0047] (2) Take ultra-high molecular weight polyethylene powder 320g, described ultra-high molecular weight polyethylene is the M-II type product of Beijing Dongfang Petrochemical Co., Ltd. Auxiliary Second Factory, and its molecular weight is 2,500,000;

[0048] (3) Take medical active carbon powder 100g, the particle diameter of described medical active carbon is 74~89 microns;

[0049] (4) Weigh 130 grams of azodicarbonamide, with a purity of more than 99.99%;

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

[0051] (6) Fill the mixed powder into a tubular mold, press under a hydraulic pressure of 0.6MPa, and sinter at a temperature of 220° C. for 150 minutes;

[0052] (7) Natural cooling to 40°C and then demoulding, that is, a tubular filter element with many fine pores.

[...

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Abstract

The invention discloses a filter medium for removing manganese in drinking water and a preparation method thereof, and also relates to a filter core, a water purifying device and a water dispenser consisting of the filter medium. Preparation of the filter medium comprises the following steps of: a) mixing raw materials including zeolite molecular sieve powder, polyethylene powder with super-high molecular weight, active carbon powder and pore forming agent in a weight ratio of 100-300 to 200-400 to 50-150 to 50-150; and b) pressing, sintering and cooling the mixture obtained by the step a) in a mould. The filter medium provided by the invention has high removal rate of the manganese in the water, high removing speed, simple use and low cost, can prevent the manganese from causing injury to the human body without subsequent processing and is suitable for the treatment of the drinking water at the home terminal. Tests show that the filter medium has a removal rate of more than 90 percent of the manganese in the drinking water.

Description

technical field [0001] The invention relates to a filter medium for removing manganese in drinking water and a preparation method thereof, a filter element, a water purification device and a water dispenser composed of the filter medium. Background technique [0002] Manganese is an essential trace element for the human body, but excessive intake of manganese has chronic harm to the human body, which will inhibit the development of bones, damage the inner wall of the artery and the heart muscle, form atherosclerotic plaque, cause coronary artery narrowing and lead to coronary heart disease; Neuropsychiatric symptoms, dull expression, slow movement, manifested as "Parkinson's syndrome"; long-term drinking water with high manganese content may have adverse effects on children's neurobehavior, which is an important reason for neurobehavioral changes and also affects children. intelligence. [0003] In recent years, the manganese content of surface drinking water sources in man...

Claims

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Application Information

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IPC IPC(8): C02F1/64C02F1/28C02F101/20
Inventor 周奇迪栾云堂
Owner QIDI ELECTRIC GROUP
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