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

Method and device for ultra-gravity catalytic wet oxidation of phenolic wastewater

A technology for catalyzing wet oxidation and phenolic wastewater, which is applied in chemical instruments and methods, oxidized water/sewage treatment, water pollutants, etc. , The effect of reducing equipment volume, reducing mass transfer resistance and lowering catalytic rate

Active Publication Date: 2018-07-31
ZHONGBEI UNIV
View PDF9 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a high-gravity catalytic wet oxidation method for phenol-containing wastewater in order to solve the problems of slow adsorption rate of the adsorbent on the surface of the adsorbent, slow catalytic rate, and difficult removal of the product in the existing catalytic wet oxidation treatment of phenol-containing wastewater. On the one hand, supergravity is used to strengthen the adsorption and catalytic conversion of liquid molecules on the surface of the adsorbent; on the other hand, the liquid continuously cleans the surface of the adsorbent rotating at high speed, so that the reaction products are continuously separated, thereby promoting the degradation of phenolic substances

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 device for ultra-gravity catalytic wet oxidation of phenolic wastewater
  • Method and device for ultra-gravity catalytic wet oxidation of phenolic wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Example 1: A method for catalyzing wet oxidation of phenol-containing wastewater by a high-gravity rotating packed bed. The phenol-containing wastewater is sent into the high-gravity rotating packed bed through a liquid inlet pipe, and is initially distributed under the action of a liquid distributor. Driven into the high-gravity rotating packed bed to complete the micronization of droplets, and then enter the surface of the adsorbent loaded with catalyst, and at the same time complete the degradation of phenol-containing wastewater with the oxidant under the double action of catalyst and high gravity, and finally discharge through the liquid outlet pipe into the reservoir.

[0016] The concentration is 500 mg / L phenolic wastewater, and the spray density is 0.5 m 3 / m 2 / h, enter the rotating packed bed from the liquid inlet 2.2, and carry out the initial distribution under the action of the liquid distributor 3, and then, driven by the rotor 2.1 (supergravity factor 2...

Embodiment 2

[0017] Embodiment 2: the concentration is 100 mg / L phenol-containing wastewater, and the spray density is 1 m 3 / m 2 / h, enter the rotating packed bed from the liquid inlet 2.2, carry out the initial distribution under the action of the liquid distributor 3, and then enter the packing area (Pall ring packing) driven by the rotor 2.1 (super gravity factor 5) to phenol-containing The waste water liquid is cut into tiny droplets, liquid filaments and liquid films, and then enters the surface of alumina loaded with iron. The amount of alumina is 30g, and the catalyst loading is 5.6 wt%. The catalyst loading area is a ring, and the size is supergravity rotation One-eighth of the cross-sectional area of ​​the packed bed is mixed with the oxygen generated by the gas generator 8 (oxygen partial pressure 1.2MPa), and under its action, the degradation of phenol-containing wastewater is completed, and then the liquid is discharged into the liquid storage tank 6, Loop twice. Under the s...

Embodiment 3

[0018] Embodiment 3: Concentration is 800 mg / L containing phenol wastewater (containing 5% H 2 o 2 , 5 mM / L), the spray density is 2 m 3 / m 2 / h, enter the rotating packed bed from the liquid inlet 2.2, carry out initial distribution under the action of the liquid distributor 3, and then enter the packing area (Raschig ring packing) driven by the rotor 2.1 (high gravity factor 80) to phenol-containing The wastewater liquid is cut into tiny droplets, liquid filaments and liquid films, and then enters the surface of the copper-loaded zeolite. The amount of zeolite is 45g, the catalyst loading is 8.2 wt%, and the catalyst loading area is a ring, the size of which is a high-gravity rotating packed bed One-twentieth of the inner cross-sectional area, and then complete the degradation of phenol-containing wastewater under its action, and then the liquid is discharged into the liquid storage tank 6 for three cycles. Under the strengthening effect of supergravity, phenol molecules ...

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 belongs to the technical field of phenolic wastewater treatment. In order to solve the problems of slow adsorption rate of adsorption materials on the surface of an adsorbent, slow catalytic rate, difficult removal of products and the like during the prior catalytic wet oxidation process of phenolic wastewater, the invention provides a method and device for ultra-gravity catalytic wet oxidation of the phenolic wastewater. The phenolic wastewater is fed into an ultra-gravity rotary packing bed by a liquid inlet pipe; initial distribution is carried out under the action of a liquiddistributor; then the phenolic wastewater is driven by a rotor to enter an adsorbent surface supporting a catalyst; simultaneously, the phenolic wastewater is degraded with an oxidizing agent under the dual action of the catalyst and ultra gravity; and finally the degraded wastewater is discharged into a liquid storage tank through a liquid outlet pipe. The process has the advantages of large processing capacity and small device volume, the integration of adsorption and degradation is realized, and the problems of transmission resistance, low catalytic rate and the like in a conventional wetoxidation method are greatly reduced. The method and device provided by the invention are suitable for treating various phenolic wastewater, such as coking wastewater, gasification waste water and thelike.

Description

technical field [0001] The invention belongs to the technical field of phenol-containing wastewater treatment, and in particular relates to a method and a device for supergravity catalytic wet oxidation of phenol-containing wastewater. Background technique [0002] Due to its high toxicity, phenolic wastewater is listed as one of the key hazardous wastewater to be solved. Many researchers have used activated carbon as an adsorbent to remove harmful substances in a high-gravity environment, and achieved remarkable results. However, it has the disadvantages that the adsorbent needs to be further desorbed and the process is relatively complicated. However, in the catalytic wet oxidation process under the gravity field, there are problems such as the slow adsorption rate and catalytic rate of the adsorbent on the surface of the adsorbent, and the difficult removal of the product. At present, catalytic wet oxidation in high gravity environment is still blank. Contents of the i...

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): C02F1/72C02F1/28C02F101/34
CPCC02F1/281C02F1/283C02F1/725C02F2101/345
Inventor 李伟伟刘有智祁贵生焦纬洲
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