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A high-efficiency electrospun fiber biofilm and its preparation method

A technology of electrospun fibers and biofilms, which is applied in the field of water treatment, can solve the problems of increasing the specific surface area of ​​biological fillers, increasing the hydrophilicity of biological fillers, etc., and achieve the effects of improving starting efficiency, strengthening binding, and improving overall efficiency

Active Publication Date: 2022-01-11
泉州市恒毅企业服务有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the deficiencies in the prior art above, the purpose of the present invention is to provide a high-efficiency electrospun fiber biofilm and its preparation method, which significantly increases the specific surface of the biofiller, and significantly increases the hydrophilicity of the biofiller, so that the biofiller become hydrophilic, and at the same time, the biofilm can also be used in situations where it is not possible to implant bacteria

Method used

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  • A high-efficiency electrospun fiber biofilm and its preparation method
  • A high-efficiency electrospun fiber biofilm and its preparation method
  • A high-efficiency electrospun fiber biofilm and its preparation method

Examples

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Embodiment 1

[0035] see figure 1 , the present embodiment provides a high-efficiency electrospun fiber biofilm (substrate+mixed solution+PAN electrospun membrane+mixed solution+PES electrospun membrane), including a substrate, and the substrate is used as a bottom material on which There is a PAN electrospun membrane, and the PAN electrospun membrane is covered with a PES electrospun membrane, wherein the upper surface of the substrate is sprayed with a liquid binder dissolved with composite bacteria; the upper surface of the PAN electrospun membrane is sprayed with A liquid binder in which complex bacteria are dissolved.

[0036] The preparation method of the high-efficiency electrospun fiber biofilm comprises the following steps:

[0037] (1) To prepare a 10% PAN solution, take 200g of PAN powder and 1800g of DMF (N,N-dimethylformamide) solvent. Put in DMF solvent, and use a mechanical stirrer to stir at room temperature for 6 hours at a speed of 600r / min after completion;

[0038] (2...

Embodiment 2

[0046] see figure 1 , the present embodiment provides a high-efficiency electrospun fiber biofilm (substrate+mixed solution+PAN electrospun membrane+mixed solution+PES electrospun membrane), which differs from Example 1 in that the concentration of the prepared PAN solution is 8%, the concentration of the prepared PES solution is 22%, and the mass ratio of liquid binder to composite bacteria is 35:1.

Embodiment 3

[0048] see figure 1 , the present embodiment provides a high-efficiency electrospun fiber biofilm (substrate+mixed solution+PAN electrospun membrane+mixed solution+PES electrospun membrane), which differs from Example 1 in that the concentration of the prepared PAN solution is 12%, the concentration of the prepared PES solution is 26%, and the mass ratio of liquid binder to composite bacteria is 45:1.

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Abstract

The invention discloses a high-efficiency electrospun fiber biomembrane and a preparation method thereof. The biomembrane includes a base material, and the base material is used as a bottom layer material covered with N layers of polymer nanofiber membranes, wherein 1≤ N≤4, the upper surface of at least one layer of the base material and N layers of high molecular polymer nanofiber membranes is sprayed with a liquid binder in which composite bacteria are dissolved. The present invention adopts base material + electrospun membrane to form a biofilm, the surface of the base material is covered with the electrospun membrane, the fluffiness of the base material surface and the fluffiness of the electrospun membrane are fully superimposed, providing a lot of three-dimensional small spaces for bacteria to live and It is not easy to fall off and increases the amount of biofilm hanging film. The covering of the electrospun membrane also plays a role in protecting the substrate or the underlying electrospun membrane, and at the same time, due to the water absorption of the electrospun membrane itself, it also provides a good environment for the survival of bacteria.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a high-efficiency electrospun fiber biofilm and a preparation method thereof. Background technique [0002] Slightly polluted water bodies generally refer to water bodies that contain many types of pollutants and complex properties, but relatively low concentrations. With the rapid development of industry and agriculture in our country, the pollutants discharged by people in the process of life and production pollute the source water quality more and more seriously, and the safety of drinking water supply has been widely valued. At present, water plants in most countries in the world use conventional flocculation, sedimentation, filtration, disinfection and other treatment processes, and conventional treatment processes mainly remove suspended solids, colloidal substances and bacteria in water. The removal efficiency of ammonia nitrogen and nitrate nitrogen i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/34C02F3/10
CPCC02F3/34C02F3/108Y02W10/10
Inventor 郑高峰傅刚林国晓
Owner 泉州市恒毅企业服务有限公司
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