Filter material with sterilization function and preparation method of filter material

A filter material and function technology, applied in the field of non-centralized sterilization and water purification, can solve the problems of short service life and low sterilization efficiency, and achieve the effects of easy material, high production efficiency and stable structure

Active Publication Date: 2017-11-07
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a filter material with a bactericidal function and a preparation method thereof, so as to solve the problems of low bactericidal efficiency and short service life of the decentralized sterilizing water purifier in the prior art

Method used

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  • Filter material with sterilization function and preparation method of filter material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The preparation method of the filter material with bactericidal function of the present embodiment is as follows:

[0031] 1) Obtaining a filter matrix: the filter matrix is ​​fiber filter paper with a pore size of 40 μm.

[0032] 2) load sterilization layer

[0033] S1: Prepare the first mixed solution: the solvent of the first mixed solution is water, and the solute is glucose and silver nitrate, wherein the concentration of the glucose is 1 mol / L, and the concentration of the silver nitrate is 25 mmol / L.

[0034] S2: Put the filter matrix into the first mixed solution for the first soaking, and the soaking time is 30 minutes.

[0035] S3: Put the soaked filter base into an oven, react at 80° C. for 70 minutes, and then rinse, that is, load a bactericidal layer on the pore surface of the filter base to obtain an intermediate.

[0036] 3) Load fixed layer

[0037] S1: Prepare the second mixed solution: the solvent of the second mixed solution is water, and the solute ...

Embodiment 2

[0043] The preparation method of the filter material with bactericidal function of the present embodiment is as follows:

[0044] 1) Obtaining a filter matrix: the filter matrix is ​​fiber filter paper with a pore size of 40 μm.

[0045] 2) load sterilization layer

[0046] S1: Prepare the first mixed solution: the solvent of the first mixed solution is water, the solute is glucose and silver nitrate, wherein the concentration of the glucose is 1mol / L, and the concentration of the silver nitrate is 50mmol / L.

[0047] S2: Put the filter matrix into the first mixed solution for the first soaking, and the soaking time is 25 minutes.

[0048] S3: put the soaked filter base into an oven, react at 90° C. for 60 min, and then rinse, that is, load a sterilizing layer on the pore surface of the filter base to obtain an intermediate.

[0049] 3) Load fixed layer

[0050] S1: Prepare the second mixed solution: the solvent of the second mixed solution is water, and the solute is chitos...

Embodiment 3

[0056] The preparation method of the filter material with bactericidal function of the present embodiment is as follows:

[0057] 1) Obtaining a filter matrix: the filter matrix is ​​fiber filter paper with a pore size of 40 μm.

[0058] 2) load sterilization layer

[0059] S1: Prepare the first mixed solution: the solvent of the first mixed solution is water, the solute is glucose and silver nitrate, wherein the concentration of the glucose is 1mol / L, and the concentration of the silver nitrate is 75mmol / L.

[0060] S2: Put the filter matrix into the first mixed solution for the first soaking, and the soaking time is 20 minutes.

[0061] S3: put the soaked filter base into an oven, react at 95° C. for 50 min, and then rinse, that is, load a bactericidal layer on the pore surface of the filter base to obtain an intermediate.

[0062] 3) Load fixed layer

[0063] S1: Prepare the second mixed solution: the solvent of the second mixed solution is water, and the solute is chito...

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Abstract

The invention discloses a filter material with a sterilization function. The filter material comprises a porous filter matrix, a sterilization layer and a fixing layer, wherein the sterilization layer and the fixing layer are sequentially arranged on the porous surfaces of the filter matrix, and the fixing layer is used for preventing the falling of the sterilization layer; the sterilization layer contains silver particles; and the fixing layer contains chitosan and is of a porous structure. The porous surfaces include porous surfaces in the filter matrix and an outer surface. The filter material with the sterilization function is simple and stable in structure, has excellent filter performance and sterilization performance and a long service life and is not limited by special environments and geographical conditions, and materials are easily available, so that the problems of low sterilization rate and water purification speed, short service life and the like of an existing dispersion type sterilization water purifier can be effectively solved.

Description

technical field [0001] The invention relates to the technical field of non-centralized sterilization and water purification, in particular to a filter material with a sterilization function and a preparation method thereof. Background technique [0002] The traditional sterilizing water purification technology is to use strong oxidants such as chlorine to sterilize the water body on a large scale, but studies have shown that this method is prone to carcinogens during the sterilization process, and this large-scale water treatment technology cannot be applied to some Emergency water supply in remote areas and under special conditions. Decentralized sterilizing water purification technology, also known as non-centralized sterilizing water purification, is a bactericidal technology applied to remote rural areas or emergency water supply in emergency situations. The core of decentralized sterilizing water purification technology is the water purifier, but the existing The decen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/14
CPCB01D39/14
Inventor 范美坤龚正君龚林
Owner SOUTHWEST JIAOTONG UNIV
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