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

A kind of preparation method of modified airgel for sewage treatment

A technology for sewage treatment and aerogel, which is applied in aerogel preparation, water/sewage treatment, adsorbed water/sewage treatment, etc. The effect of ensuring adsorption performance and improving adsorption performance

Inactive Publication Date: 2021-01-26
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional inorganic aerogels have light density and excellent three-dimensional network structure, but their expansion properties are poor and their efficiency is not high, which is not conducive to the use of adsorption materials; while organic aerogels have excellent adsorption properties and not only have high adsorption performance, it can still be reused after adsorption, after the organic airgel is modified, its hydrophobicity, mechanical properties, and adsorption performance have been substantially improved

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
  • A kind of preparation method of modified airgel for sewage treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A modified airgel for sewage treatment, the preparation of which comprises the following steps:

[0029] (1) Soak the low-cross-linked polystyrene with a cross-linking degree of 10% in absolute ethanol for 48 hours, take out the low-cross-linked polystyrene and let it dry naturally at room temperature, and dry the air-dried low-cross-linked polystyrene Place 10 parts by weight of high-degree polystyrene and 1 part by weight of tetrabutyl titanate in a mixed solution of methylene chloride and carbon tetrachloride, heat and stir for 12 hours, and lower the temperature to room temperature after the low-crosslinking degree polystyrene is completely dissolved. , to obtain the airgel precursor; place the airgel precursor in a high-pressure airtight device, pressurize and raise the temperature to 50°C, and keep it for 10 hours. Linked polystyrene airgel;

[0030] (2) In parts by weight, uniformly mix the raw materials comprising 20 parts of silicon dioxide, 8 parts of bentoni...

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
cross-linking degreeaaaaaaaaaa
Login to View More

Abstract

The invention provides a method for preparing modified airgel for sewage treatment. The invention uses polystyrene with a low degree of crosslinking as the airgel matrix, and adds a certain amount of tetrabutyl titanate during the dissolution process. Afterwards, it was sprayed with silica, bentonite, polydopamine, vinyltriethoxysilane and benzyl alcohol, and an excellent adsorption effect was achieved. Experimental results show that, for the sewage rich in oil, the modified airgel prepared by the method of the present invention has excellent treatment capacity, and the modified airgel prepared by the present invention has remarkable adsorption effect in sewage, which promotes Application of polystyrene airgel in the field of water treatment.

Description

technical field [0001] The invention relates to the field of sewage treatment materials, in particular to a preparation method of modified airgel for sewage treatment. Background technique [0002] In recent years, a large number of organic and inorganic pollutants in the industry have been discharged into water resources. Most of the polluted water resources come from industrial and agricultural activities. With the increasing frequency of human activities, the pollution has become more and more serious. When the adsorption method is used to treat polluted water resources, since the adsorption usually utilizes intermolecular force, that is, van der Waals force, electrostatic interaction, hydrophilic or hydrophobic force, to adsorb on the surface of the adsorbent material and further diffuse into the interior, the adsorbent material itself is more It is a porous material with high porosity. It is divided into organic adsorption materials and inorganic adsorption materials. ...

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
Patent Type & Authority Patents(China)
IPC IPC(8): B01J13/00B01J20/28B01J20/30C02F1/28
CPCB01J13/0091B01J20/28047C02F1/285
Inventor 苏彩丽
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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