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

A kind of preparation method and application of supported activated carbon ozone catalyst

An activated carbon and supported technology, which is applied in the field of the preparation of supported activated carbon ozone catalysts, can solve the problem that it is difficult to guide the selection and design of catalysts, the technology of high-efficiency catalysts and ozone oxidation reactors is immature, and the reaction mechanism of catalytic ozone oxidation technology is not mature. Clear and other problems, to achieve the effect of low cost, high load, good stability

Active Publication Date: 2021-01-08
YANGTZE DELTA REGION INST OF TSINGHUA UNIV ZHEJIANG
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Since the reaction mechanism of catalytic ozonation technology is still unclear, it is currently in the speculative stage, so it is still difficult for those skilled in the art to guide the selection and design of catalysts; and the preparation of high-efficiency catalysts and the structure of catalysts and ozonation reactors There is also the problem of immature technology, which limits the application of catalytic ozonation technology in practical engineering, making catalytic ozonation technology rarely reported in practical projects.

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A kind of supported activated carbon ozone catalyst, its specific preparation method is as follows:

[0031] (1) The particle size is 4.5mm and the specific surface area is 1200m 2 / g of coal-based granular activated carbon, soaked and washed in pure water for 3.0h, drained, and dried; the granular activated carbon was placed in KMnO with a mass fraction of Mn of 1.5% 4 Mix and stir in the aqueous solution and soak for 8 hours, drain and dry; then place Ce(NO 3 ) 3 .6H 2 Soak in O aqueous solution for 12 hours, drain and dry; then, burn for 6 hours in an anaerobic reactor at 185°C to obtain activated carbon composite particles;

[0032] (2) Put the activated carbon composite particles prepared in step (1) into an ultrasonic cleaner equipped with a mass fraction of 0.75% dilute hydrochloric acid aqueous solution for cleaning and activation. The activation time is 1.0h, and the cleaning solution is filtered to obtain a loaded type activated carbon ozone catalyst.

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
pore sizeaaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of a supported active carbon ozone catalyst. The preparation method comprises following steps: (1) soaking active carbon particles in a KMnO4 water solution, drying, then soaking active carbon particles in a Ce(NO3)3.6H2O water solution, drying, and then burning the active carbon particles in the absence of oxygen to obtain composite active carbon particles; and (2) under the irradiation of ultrasonic waves, washing and activating the composite active carbon particles to obtain the supported active carbon ozone catalyst. According to the preparationmethod, active carbon particles are soaked in a KMnO4 water solution and a Ce(NO3)3.6H2O water solution, dried, burned, and finally washed and activated by ultrasonic waves to obtain the supported active carbon ozone catalyst, which can accelerate decomposition of ozone, and the efficiency of catalytic degradation of organic pollutant is obviously improved under the catalytic effect of ozone.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a preparation method and application of a supported activated carbon ozone catalyst. Background technique [0002] At home and abroad, the ozone oxidation system has been widely used in the field of wastewater treatment, such as: landfill leachate and textile, pharmaceutical and chemical industrial wastewater treatment; it is mainly used to remove refractory organic pollutants, such as: landfill leachate Humic substances and adsorbable organic halides, colored aromatic compounds in textile wastewater, toxic or biocidal substances from the pharmaceutical and chemical industries. [0003] Ozone is a strong oxidizing agent with strong oxidation and reduction potential of 2.07V, second only to fluorine (2.87V) in nature, and is widely used in wastewater treatment. It is currently recognized that ozone reacts with organic matter in water through two pathways: [0004] One w...

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): B01J23/34B01J37/02B01J37/06B01J37/08B01J37/34C02F1/72C02F1/78
CPCB01J23/34B01J37/024B01J37/06B01J37/08B01J37/343C02F1/725C02F1/78
Inventor 万梅范举红刘锐陈吕军
Owner YANGTZE DELTA REGION INST OF TSINGHUA UNIV ZHEJIANG
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