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Method for preparing anti-pollution membrane by utilizing silicon dioxide nano material

A technology of silica and nanomaterials, applied in chemical instruments and methods, membrane technology, semi-permeable membrane separation, etc., can solve the problems of incapable of membrane anti-fouling, easy to agglomerate, and chemical properties are not stable enough.

Inactive Publication Date: 2020-04-28
沃克福德环境科技(深圳)有限责任公司
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Problems solved by technology

[0006] Although many antibiotics and other antibacterial components that can be used for membrane fouling control have been studied, most of them are not chemically stable, such as tetracycline antibiotics or essential oil molecules; or they are difficult to disperse and easy to aggregate, such as enzymes or nano silver, which cannot Antifouling for membranes

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  • Method for preparing anti-pollution membrane by utilizing silicon dioxide nano material
  • Method for preparing anti-pollution membrane by utilizing silicon dioxide nano material
  • Method for preparing anti-pollution membrane by utilizing silicon dioxide nano material

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Embodiment Construction

[0039] The following descriptions are preferred implementations of the embodiments of the present invention. It should be pointed out that those skilled in the art can make some improvements and modifications without departing from the principles of the embodiments of the present invention. These improvements And retouching are also regarded as the scope of protection of the embodiments of the present invention.

[0040] This embodiment provides a method for preparing an anti-fouling membrane using silica nanomaterials, comprising the following steps:

[0041] S1. Obtain silica nanoparticles with various loading mesopores.

[0042] The obtained silica nanoparticles can be directly purchased from the market with the same product having multiple loading mesopores or prepared by oneself.

[0043] In this embodiment, the method of obtaining silica nanoparticles is taken as an example, and the preparation process is as follows:

[0044] Add a surfactant to the mixed solution of t...

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Abstract

The invention provides a method for preparing an anti-pollution membrane by utilizing a silicon dioxide nano material. The method comprises the following steps: S1, obtaining silicon dioxide nano particles with various load mesopores; S2, loading anti-membrane-pollution components into loading mesopores of the silicon dioxide nanoparticles to obtain the silicon dioxide nanoparticles loaded with the anti-membrane-pollution components, and taking the silicon dioxide nanoparticles as an additive for membrane preparation; and S3, adding the additive obtained in the step S2 into a membrane materialin the membrane preparation process of a membrane module to prepare the anti-pollution membrane. After the easily-prepared multi-load low-price silicon dioxide nanoparticles are used as the carrier of the anti-membrane-pollution component, the stability of the anti-membrane-pollution component can be greatly enhanced, the membrane pollution control level is enhanced, the membrane washing frequency is reduced, the service life of the membrane is prolonged, and the efficiency of a membrane bioreactor is improved.

Description

technical field [0001] The invention belongs to the technical field of membrane preparation, and relates to a method for preparing an anti-pollution membrane by using silicon dioxide nanometer material. [0002] technical background [0003] Nanomaterials refer to new materials with a size of nanometer in at least one dimension. Because of their excellent physical, chemical, surface, photoelectric and other properties, they are widely used in catalysts, environmental protection, chemical additives, biomedicine, energy storage, Electromagnetic materials, optical components and other aspects of national economic life. [0004] In the field of environmental protection, especially in the field of water treatment and reuse, membranes and membrane bioreactors have been used in industrial wastewater in recent years because of their high efficiency, high stability, refractory wastewater treatment, and universal application scenarios. It is more and more widely used in treatment and ...

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Application Information

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IPC IPC(8): B01D71/02B01D67/00C02F3/12
CPCB01D67/0044B01D71/024C02F3/1268Y02W10/10
Inventor 黄欣玥杨柯杨景亮刘翠英
Owner 沃克福德环境科技(深圳)有限责任公司
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