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

Inorganic micro filtering membrane vacuum emulsion breaking method and equipment

A microfiltration membrane and inorganic technology, applied in the field of microfiltration membrane vacuum demulsification, can solve the problems of easy clogging of membrane pores, high energy consumption, low membrane flux, etc., and achieve the effect of reducing the degree of membrane fouling

Inactive Publication Date: 2006-08-30
ZHONGBEI UNIV
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method and its process device overcome the shortcomings of using external pressure as the permeation pressure in the existing inorganic microfiltration membrane demulsification method, such as large pressure difference, high energy consumption, easy blockage of membrane pores, and low membrane flux.

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
  • Inorganic micro filtering membrane vacuum emulsion breaking method and equipment
  • Inorganic micro filtering membrane vacuum emulsion breaking method and equipment
  • Inorganic micro filtering membrane vacuum emulsion breaking method and equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1 Liquid Membrane Separation Technology Treatment of Phenol-Containing Wastewater

[0035] Emulsion breaking after liquid membrane extraction of phenol-containing wastewater - the average droplet diameter of the emulsion is about 3.5 times the average pore diameter of the membrane.

[0036] The mass percentage composition of emulsion film is as follows:

[0037] The content of surfactant span-80 (Span-80) in the oil phase is 4%, the content of kerosene in the oil phase is 93%, the content of liquid paraffin in the oil phase is 3%, and the NaOH concentration in the water phase For 5%, the oil phase in the emulsion is compared with the water R oi 1:1 to 1:1.5.

[0038] The conditions for making milk are as follows: the rotation speed of the mixer is 10000 rpm, and the emulsification time is 3 minutes to prepare an emulsion, which is mixed and stirred with wastewater containing phenol, left to stand for separation, and the extracted emulsion is obtained. It was ...

Embodiment 2

[0042] Emulsion demulsification after liquid membrane extraction of phenol-containing wastewater - the average droplet diameter is 4.5-5 times the average pore diameter of the membrane

[0043] The mass percent composition of the emulsion liquid film and the milk-making conditions are the same as in Example 1.

[0044] The demulsification process is the same as in Example 1, and the demulsification conditions are different from those in Example 1: the degree of vacuum is (75-85) kPa, the average membrane pore size is about 2.5 μm, and the membrane pore size distribution is mainly concentrated at (1.2-4.5) μm Between, other demulsification conditions are identical with embodiment 1. The demulsification rate is over 96%, and the membrane flux is up to (1350-1450) L / m 2 .h. And compared with the conventional demulsification of the external permeation membrane method without disturbance elements (other operating conditions are the same), it is concluded that the best operating e...

Embodiment 3

[0046] Emulsion demulsification after liquid membrane extraction of ammonia nitrogen wastewater - the average droplet diameter of the emulsion is about 3.5 times the average pore diameter of the membrane

[0047] The mass percentage composition of emulsion film is as follows:

[0048] The content of surfactant span-80 (Span-80) in the oil phase is 4%, the content of kerosene in the oil phase is 89%, the content of liquid paraffin in the oil phase is 7%, in the water phase H 2 SO 4 The concentration is 18%, the oil phase in the emulsion is compared with water R oi 1:1 to 1:1.5.

[0049] Milking conditions and demulsification conditions are the same as in Example 1. The particle size and distribution of the extracted emulsion are basically the same as in Example 1, mainly because the material ratio and operating conditions of the two are basically the same or nearly the same. The demulsification rate reaches about 95%, and the membrane flux reaches (1600-1700) L / m 2 .h.

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
Outer diameteraaaaaaaaaa
The inside diameter ofaaaaaaaaaa
Average membrane pore diameteraaaaaaaaaa
Login to View More

Abstract

The present invention relates to an inorganic microfiltration membrane vacuum emulsion-breaking method, said method is applicable to W / O type emulsion. The vacuum degree of membrane tube through which the emulsion is passed is 50-90kPa, and the average drop diameter of emulsion drop is 3-5 times average pore size of membrane. Under the action of vacuum degree the emulsion is passed through membrane pores and is broken so as to form emulsion-broken solution. Said invention also provides an emulsion-breaking equipment, said equipment includes the following several portions: emulsion tank, transfer pump, inorganic microfiltration membrane device, tube pass inlet, tube pass outlet, return pipeline, vacuum pump and liquid-collecting tank.

Description

technical field [0001] The invention relates to a method for microfiltration membrane vacuum demulsification and a device for realizing the method, which is suitable for demulsification of W / O emulsion. Background technique [0002] Traditional demulsification methods mainly include: chemical demulsification, electric demulsification and physical demulsification. There are certain deficiencies in these demulsification methods, such as: the chemical demulsification method needs to add a demulsifier in the system, which may have some adverse effects on the processed system, and the application is greatly restricted; The method requires an external high-voltage electric field, which consumes a lot of energy, and it is difficult to achieve a good demulsification effect for emulsions with a large water content; the polymerization of physical demulsification droplets is slow, the gravity settling equipment is huge, and the centrifugal demulsification consumes a lot of energy, whic...

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): B01D17/04
Inventor 刘有智章德玉
Owner ZHONGBEI UNIV
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