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Filtering medium used for guaranteeing chemical stability and biological stability of terminal drinking water, filter element and preparation method of filtering medium

A technology of chemical stability and biological stability, applied in chemical instruments and methods, other chemical processes, adsorption water/sewage treatment, etc., can solve the problems of limited microbial inactivation, poor chemical stability, limited effect, etc., to achieve guarantee Chemical stability and biological stability, good removal effect, simple method effect

Inactive Publication Date: 2015-06-10
佛山市农业总公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During this process, the invasion and reproduction of bacteria, and even the emergence of chironomids (red worms), resulting in poor water biological stability and poor chemical stability: poor biological stability will lead to excessive bacteria and microorganisms and odor; chemical stability Poor performance will lead to "yellow water", "red water", "white turbid water", "black water" and so on
[0004] The prior art uses compressed air and water to clean the water supply pipe network and secondary water supply facilities.

Method used

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  • Filtering medium used for guaranteeing chemical stability and biological stability of terminal drinking water, filter element and preparation method of filtering medium
  • Filtering medium used for guaranteeing chemical stability and biological stability of terminal drinking water, filter element and preparation method of filtering medium
  • Filtering medium used for guaranteeing chemical stability and biological stability of terminal drinking water, filter element and preparation method of filtering medium

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preparation example Construction

[0019] The invention provides a method for preparing a filter medium that ensures the chemical stability and biological stability of terminal drinking water, comprising the following steps:

[0020] a) Ultra-high molecular weight polyethylene powder, woody medical activated carbon powder, 13X molecular sieve powder and pore-forming agent are mixed to obtain a mixture, the weight of the ultra-high molecular weight polyethylene powder, woody medical activated carbon powder, 13X molecular sieve powder and pore-forming agent The ratio is 200~300:100~150:100~150:50~120;

[0021] b) pressing, sintering and cooling the mixture obtained in step a) in a mould;

[0022] The pressing pressure is 0.4MPa-1Mpa; the sintering temperature is 200°C-300°C; the sintering time is 90-120min; the cooling temperature is 40-60°C.

[0023] The present invention first mixes ultra-high molecular weight polyethylene powder, woody medical activated carbon powder, 13X molecular sieve powder and a pore-for...

Embodiment 1

[0057] (1) Weigh 200g of ultra-high molecular weight polyethylene powder with a particle size of 92 μm to 100 μm, and a particle size of 110 μm. The ultra-high molecular weight polyethylene is the M-I product of the No. 2 Auxiliary Factory of Beijing Dongfang Petrochemical Co., Ltd., and its molecular weight is 1.5 million;

[0058] (2) Take woody medical activated carbon powder 100g, the specific surface area of ​​described medical activated carbon is 1100m 2 / g, the particle size is 95μm;

[0059] (3) Weigh 100 g of 13X molecular sieve powder with an aperture of 80 μm;

[0060] (4) Take by weighing 50g of pore forming agent;

[0061] (5) Put the above four powders into a mechanical stirrer and stir for 10 minutes to mix evenly;

[0062] (6) Fill the mixed powder into a tubular mold, press under a hydraulic pressure of 0.7 MPa, and sinter at a temperature of 230° C. for 95 minutes;

[0063] (7) Naturally cool to 50° C. and then release the mold with a silicone oil release...

Embodiment 2

[0066] (1) Weigh 250g of ultra-high molecular weight polyethylene powder with a particle size of 92 μm to 100 μm, and a particle size of 120 μm. The ultra-high molecular weight polyethylene is the M-III product of the No. 2 Auxiliary Factory of Beijing Dongfang Petrochemical Co., Ltd., which The molecular weight is 3.5 million;

[0067] (2) Take by weighing wooden medical activated carbon powder 120g, the specific surface area of ​​described medical activated carbon is 1500m 2 / g, the particle size is 100μm;

[0068] (3) Take by weighing 120 g of EDTA-modified 13X molecular sieve powder with an aperture of 80 μm;

[0069] (4) Take pore forming agent 85g;

[0070] (5) Put the above four powders into a spiral mixer and stir for 10 minutes to mix evenly;

[0071] (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 110 minutes;

[0072] (7) Naturally cool to 50° C. and then release the mold with a ...

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Abstract

The invention provides a preparation method of a filtering medium used for guaranteeing the chemical stability and the biological stability of terminal drinking water. The preparation method comprises the following steps: (a) mixing polyethylene powder with the ultra-high molecular weight, wood medical active carbon powder, 13X molecular sieve powder and a pore-forming agent to obtain a mixture, wherein the weight ratio of the ultra-high molecular weight polyethylene powder to the wood medical active carbon powder to the 13X molecular sieve powder to the pore-forming agent is (200-300) to (100-150) to (100-150) to (50-120); and (b) pressing the mixture obtained by the step (a), sintering and cooling, wherein the pressing pressure is 0.4MPa-1MPa, the sintering temperature is 200-300 DEG C, the sintering time 90-120min and the cooling temperature is 40-60 DEG C. Under the synergistic effect of the raw materials, the chemical stability and the biological stability of the terminal drinking water can be guaranteed.

Description

technical field [0001] The invention relates to a filter medium for ensuring the chemical stability and biological stability of terminal 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] The problems of chemical stability and biological stability of terminal drinking water are mostly caused by water supply network and secondary water supply. Common secondary water supply facilities include pipe networks, pools, roof tanks, water pipes, water towers, water pumps, water meters, and faucets. Most of the tap water we drink was produced by the waterworks three or four days ago. During this process, the invasion and reproduction of bacteria, and even the emergence of chironomids (red worms), resulting in poor water biological stability and poor chemical stability: poor biological stability will lead to excessive bacteria and microorganisms and odor; chem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/30C02F1/28
Inventor 栾云堂古立军
Owner 佛山市农业总公司
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