Filter medium for removing endosulfan from water as well as filter element and preparation method of filter medium

A filter medium and drinking water technology, applied to chemical instruments and methods, water pollutants, other chemical processes, etc., can solve problems such as high cost, secondary pollution, water and electricity consumption, and achieve simple methods, avoid harm, Easy to use effects

Inactive Publication Date: 2015-05-06
CIXI TIANQUAN ELECTRICAL APPLIANCE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional water treatment process has a poor treatment effect on endosulfan, and cannot effectively remove endosulfan; biological methods, oxidation methods, catalytic methods, and ion exchange methods are cumbersome; The concentrated solution is not easy to handle, and it is easy to cause secondary pollution

Method used

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  • Filter medium for removing endosulfan from water as well as filter element and preparation method of filter medium

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preparation example Construction

[0021] The invention provides a kind of preparation method of the filter medium that removes endosulfan in drinking water, it is characterized in that, comprises the following steps:

[0022] a) mixing ultra-high molecular weight polyethylene powder, activated carbon powder, zeolite molecular sieve powder, attapulgite powder and pore-forming agent to obtain a mixture, the ultra-high molecular weight polyethylene powder, activated carbon powder, zeolite molecular sieve powder, attapulgite powder and foaming agent The weight ratio of the pore agent is 100~300:50~100:100~150:100~150:50~100;

[0023] b) pressing, sintering and cooling the mixture obtained in step a) in a mould.

[0024] The present invention first mixes ultra-high molecular weight polyethylene powder, activated carbon powder, zeolite molecular sieve powder, attapulgite powder and pore-forming agent to obtain a mixture, the ultra-high molecular weight polyethylene powder, activated carbon powder, zeolite molecular ...

Embodiment 1

[0054] (1) Take ultra-high molecular weight polyethylene powder 100g, described ultra-high molecular weight polyethylene is the M-I type product of Beijing Dongfang Petrochemical Co., Ltd. Auxiliary No. 2 Factory, and its molecular weight is 1.5 million;

[0055] (2) Take by weighing medical active carbon powder 50g, the specific surface area of ​​described medical active carbon is 800m 2 / g;

[0056] (3) Take by weighing 100 g of 13X zeolite molecular sieve powder with a particle diameter of 75 μm;

[0057] (4) Weigh 100g of attapulgite powder, impregnate it with hydrochloric acid with a concentration of 10wt% for 15 hours, filter and extrude into flakes, activate at 300°C for 40 minutes with a drum drier, and pulverize into 100 μm with a decolorizing power of 250. Attapulgite powder;

[0058] (5) Take 50g of pore forming agent;

[0059] (6) Put the above five kinds of powders into a mechanical stirrer and stir for 10 minutes to mix evenly;

[0060] (7) Fill the mixed pow...

Embodiment 2

[0064] (1) Take ultra-high molecular weight polyethylene powder 200g, described 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;

[0065] (2) Take by weighing medical active carbon powder 75g, the specific surface area of ​​described medical active carbon is 1500m 2 / g;

[0066] (3) Take by weighing 125g of zeolite molecular sieve powder with a particle diameter of 80 μm;

[0067] (4) Weigh 125g of attapulgite powder, impregnate it with hydrochloric acid with a concentration of 10wt% for 15 hours, filter and extrude it into pieces, activate it at 300°C for 40 minutes with a drum drier, and pulverize it into an activity of 100 μm with a decolorizing power of 250 Attapulgite powder;

[0068] (5) Take 75g of pore forming agent;

[0069] (6) Put the above five kinds of powders into a spiral agitator and stir for 10 minutes to mix evenly;

[0070] (7) ...

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Abstract

The invention provides a preparation method of a filter medium for removing endosulfan from drinking water. The preparation method is characterized by comprising the following steps: (a) mixing ultra-high molecular weight polyethylene powder, activated carbon powder, zeolite molecular sieve powder, attapulgite powder and a pore-forming agent to obtain a mixture, wherein the ultra-high molecular weight polyethylene powder, the activated carbon powder, the zeolite molecular sieve powder, the attapulgite powder and the pore-forming agent are mixed in a weight ratio of (100-300) to (50-100) to (100-150) to (100-150) to (50-100); and (b) pressing, sintering and cooling the mixture obtained in step (a) in a mould. According to the preparation method, the filter medium prepared under synergistic reaction of the raw materials has a high removal rate to endosulfan in water, the method is simple, the filter medium is suitable for drinking water polluted by endosulfan so as to avoid harms of elemental endosulfan to a human body. Through the detection, the removal rate of the filter medium to endosulfan in drinking water is higher than 99.0%.

Description

technical field [0001] The invention relates to a filter medium for removing endosulfan in drinking water and a preparation method thereof, a filter element, a water purification device and a water dispenser made of the filter medium. Background technique [0002] Endosulfan, an organic compound, namely 1,2,3,4,7,7-hexachlorobicyclo2.2.1hept-2-ene-5,6-bishydroxymethylsulfite. Brown crystals. Endosulfan is toxic and has a transient irritating effect on the eyes and upper respiratory tract. May cause damage to the central nervous system. Mainly used as agricultural pesticides. Due to its acute toxicity, bioaccumulation and endocrine disruptor effects, its use has been banned in more than 50 countries, including the European Union, some Asian and West African countries. But it is still widely used in many other countries, including India, Brazil and Australia. Due to the threat of endosulfan to the environment, in 2011, 127 countries including China agreed to list the high...

Claims

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Application Information

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IPC IPC(8): B01J20/20B01J20/30C02F1/28C02F1/58
CPCB01J20/26B01J20/045B01J20/12B01J20/14B01J20/18B01J20/20C02F1/281C02F1/288C02F2101/101
Inventor 岑占波栾云堂
Owner CIXI TIANQUAN ELECTRICAL APPLIANCE TECH
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