Method and testing device for reducing membrane pollution through alternate inhomogeneous field

A non-uniform electric field and experimental device technology, applied in chemical instruments and methods, electrodialysis, membrane technology, etc., can solve the problems of imperfection, unadjustable high-voltage pulse size and frequency, inconvenient use, etc. The effect of membrane fouling

Inactive Publication Date: 2015-09-30
JIANGSU UNIV
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the upper and lower conductive plates of the device are fixed, and the distance from the flat film cannot be adjusted in real time according to specific conditions; secondly, the size and frequency of the high-voltage pulse are not adjustable, and cannot be adjusted on site; thirdly, the patent

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
  • Method and testing device for reducing membrane pollution through alternate inhomogeneous field
  • Method and testing device for reducing membrane pollution through alternate inhomogeneous field
  • Method and testing device for reducing membrane pollution through alternate inhomogeneous field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] See figure 1 The main part of the alternate non-uniform electric field mitigation membrane fouling device of the present invention is a vertical symmetric structure with the flat microfiltration membrane 29 as the center of symmetry. The external protection device 12 is located outside the main body of the entire device for protection and fixation. The flat microfiltration membrane 29 is horizontally located in the middle part of the entire device, and the device is equally divided into two parts in volume. The flat microfiltration membrane 29 is composed of a membrane layer and a membrane pad 15, a filter plate 16, and a water intake 5. The filter plate 16 supports the membrane layer and membrane pad 15 attached to its upper and lower surfaces. There are many grooves on the filter plate 16. The trough can lead the material liquid filtered through the membrane layer and the membrane pad 15 to the water intake 5 and flow out from the water intake 5 under the action of hyd...

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

No PUM Login to view more

Abstract

The invention discloses a method and testing device for reducing membrane pollution through an alternate inhomogeneous field. A lower filter cavity and an upper filter cavity are vertically symmetric about a flat plate micro-filtration membrane as a symmetric center, a needle point electrode device is arranged in the upper filter cavity, and a plate electrode is arranged in the lower filter cavity. The needle point electrode device is provided with array type needle point electrodes which are arranged in m rows from left to right and arranged in n lines from front to back, each needle point electrode is connected with a conductor wire, m conductor wires in each line of needle point electrodes pass through hollow pipes to be connected with a wire diverter, and the n wire diverters are connected to a MCU control box. A membrane hole is scoured by different angles through the alternately-changing field, foreign particles are made to move between the surface of the membrane and the electrodes, and the situation that the foreign particles are centralized on the surfaces of the electrodes or the surface of the membrane to cause pollution to the surfaces of the electrodes or the surface of the membrane can be avoided.

Description

Technical field [0001] The invention relates to a technology for mitigating membrane pollution and concentration polarization, which applies alternating non-uniform electric fields to alleviate pollution occurring during device operation. Background technique [0002] Membrane is a material with a selective separation function. The selective separation of the membrane can realize the separation, purification and concentration of different components in the feed liquid. It has high efficiency, energy saving, environmental protection, molecular level filtration and simple filtration process and easy control Therefore, it is widely used in food, medicine, biology, environmental protection, chemical industry, energy, water treatment, bionics and other fields, and has become one of the most important means in separation science. However, while membrane separation technology is widely used, it is accompanied by membrane fouling. Membrane fouling is caused by particles, colloidal partic...

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): B01D61/52B01D61/14B01D69/06B01D65/08
Inventor 张荣标张凤吕明葵
Owner JIANGSU UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap