Electrochemical degradation-photocatalysis combined air purification method

A technology for air purification and electrocatalytic oxidation, applied in the field of air purification

Inactive Publication Date: 2017-12-29
HUBEI DABEIJIANG ENVIRONMENTAL TECH CO LTD
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] Photocatalytic technology also has its limitations: the main problem of photocatalytic application in the actual degradation of organic matter is the immobilization of photocatalysts and the characteristics of surface reactions, which determine that photocatalytic technology is more suitable for the degradation of low-concentration organic pollutants

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

[0032] Experimental selection: the filter device adopts two-layer filtration, the first-stage filtration adopts 20ppi fiber filter material, and the second-stage filtration adopts 5ppi fiber filter material; the flow type electrolyzer adopts Ti / PbO 2 The coated plate is the anode, the stainless steel plate is the cathode, the distance between the electrodes is 4mm, the electrode voltage is 10V, and the current density is 50mA / cm 2 , the electrolyte uses 0.1mol / L sodium sulfate; the photocatalytic reaction pool uses an ultraviolet lamp with a power of 18w and a wavelength of 253nm as the light source; the photocatalyst uses zeolite-titanium dioxide photocatalyst; The standard gas, the dilution gas uses standard purified air) mixed with 20mg of dust particles.

[0033] Reaction performance: The particle filtration rate of the filter device is 95%, and the synergistic effect of the electrolytic cell and photocatalysis improves the efficiency of photocatalytic oxidation of organic m...

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
wavelengthaaaaaaaaaa
Login to view more

Abstract

The invention discloses an air purification method combined with electrochemical degradation and photocatalysis technology, which mainly consists of a filter device, a flow electrolytic cell with Ti/PbO2 as the anode and a stainless steel plate as the cathode, and a photocatalysis based on zeolite-titanium dioxide photocatalyst The reactor is composed of air containing pollutants and dust particles firstly filtered by fibers, and then electrocatalytic oxidation reaction occurs at the anode of the flow electrolytic cell, and then enters the photocatalytic reactor for further degradation after electrolysis. The present invention improves the air filtering effect through the combination of three processes, and improves the problem of low photocatalytic reaction rate. This method greatly improves the problem of poor efficiency of individual modules, so that the air purification effect is no less than 90%.

Description

technical field [0001] The invention belongs to the field of air purification, and in particular relates to an air purification method combined with electrochemical degradation and photocatalytic technology. Background technique [0002] With the improvement of people's material living standards, modern people spend about 80%-90% of their time indoors in a day, so the quality of the indoor environment directly affects our health. Unfortunately, air-conditioning systems and various decorative materials are widely and frequently used in buildings, making indoor air pollution worse. Indoor air pollution is becoming the third pollution period marked by "soot type" and "photochemical smog type". According to the survey of relevant international organizations, nearly 3 million people die directly or indirectly from decoration pollution every year in the world, and 30% of the world's newly built and rebuilt buildings have indoor air pollution gases harmful to health. At present, ...

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 Applications(China)
IPC IPC(8): B01D53/86B01D46/00
CPCB01D53/86B01D46/00B01D2255/20707B01D2255/50B01D2255/802B01D2255/806B01D2259/804B01D2259/818
Inventor 王珊
Owner HUBEI DABEIJIANG ENVIRONMENTAL TECH CO LTD
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