Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Composite reverse osmosis membrane with antibacterial function

A reverse osmosis composite membrane and functional technology, applied in the field of polymer composite membranes for water treatment, can solve the problems of membrane surface biochemical pollution, membrane fouling, and restrictions on the application of reverse osmosis technology, and achieve improved hydrophilicity, simple preparation methods, Improve the effect of antibacterial and anti-biofouling properties

Active Publication Date: 2013-11-13
北创清源(北京)科技有限公司
View PDF1 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, one of the bottlenecks in the application of reverse osmosis membrane separation technology is membrane fouling, especially biochemical pollution on the membrane surface, which has seriously restricted the application of reverse osmosis technology in the fields of highly polluted water treatment, water reuse, and chemical separation.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Composite reverse osmosis membrane with antibacterial function
  • Composite reverse osmosis membrane with antibacterial function
  • Composite reverse osmosis membrane with antibacterial function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-8

[0053] Table 1: Performance of reverse osmosis composite membranes with different desalination layer materials

[0054]

[0055]

[0056] The above examples show that the reverse osmosis composite membrane with antibacterial function can be obtained by depositing silver chloride coating on the surface of the reverse osmosis composite membrane containing different polymer desalination layers through the solution alternate impregnation technique, and the separation performance is obviously better than that of ordinary reverse osmosis composite membrane. Permeate the composite membrane.

Embodiment 9-14

[0058] Table 2: Performance of reverse osmosis composite membranes with different inorganic antibacterial coating materials

[0059]

[0060] The above examples show that the reverse osmosis composite membrane with antibacterial function can be obtained by coating the surface of the reverse osmosis composite membrane with fully aromatic polyamide as the desalination layer by alternate solution impregnation technology, and the separation performance is better than Ordinary fully aromatic polyamide reverse osmosis composite membrane.

Embodiment 15-20

[0062] Table 3: Performance of reverse osmosis composite membranes with different thicknesses of inorganic antibacterial material layers

[0063]

[0064]

[0065] The above examples show that the reverse osmosis composite membrane with antibacterial function can be obtained by coating the surface of the reverse osmosis composite membrane with fully aromatic polyamide as the desalination layer by alternately impregnating the solution with different thicknesses of silver carbonate inorganic antibacterial materials. Membranes with coating material thickness less than 200nm have better separation performance.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention relates to a macromolecular composite membrane for water treatment and in particular relates to a composite reverse osmosis membrane with an antibacterial function. The composite reverse osmosis membrane is characterized by compositing a polyamide macromolecular desalination layer on a porous support membrane through interfacial polycondensation between polyamine and poly-acyl chloride and coating an inorganic material layer with an antibacterial function on the macromolecular desalination layer through the technology of compositing by alternate impregnation in solutions. The composite reverse osmosis membrane has the advantages that the hydrophilicity and antibacterial property of the composite reverse osmosis membrane are greatly improved and the composite reverse osmosis membrane has good biological pollution resistance by depositing the inorganic material with the antibacterial function on the surface of the existing polyamide composite reverse osmosis membrane; and the composite reverse osmosis membrane with the antibacterial function also has the characteristics that the composite reverse osmosis membrane is easy to prepare, and the desalination rate and the water flux are not lower than the desalination rates and the water fluxes of the existing composite reverse osmosis membranes. The composite reverse osmosis membrane has a wide range of application.

Description

technical field [0001] The invention relates to a polymer composite membrane for water treatment, in particular to a reverse osmosis composite membrane with antibacterial function. technical background [0002] Reverse osmosis technology is a new green separation technology with high efficiency and energy saving. It has the outstanding characteristics of simple equipment, mild operating conditions, large processing capacity and high separation efficiency. Separation, environmental engineering, food, medicine and other fields have been widely used, and have achieved good economic and social benefits; in recent years, with the increasing shortage of global water resources and increasing water pollution, reverse osmosis technology has The field of water reuse has been more widely used and valued. However, one of the bottlenecks in the application of reverse osmosis membrane separation technology is membrane fouling, especially biochemical pollution on the membrane surface, whi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B01D69/12B01D69/02B01D69/10B01D71/56B01D67/00
Inventor 俞三传刘梅红
Owner 北创清源(北京)科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com