Method and device for enhanced ozone oxidation wastewater treatment of ozone tail gas

An ozone oxidation and treatment device technology, applied in the direction of oxidized water/sewage treatment, etc., can solve the problems of exhaust gas damage and poor effect, and achieve the effect of strengthening the treatment effect.

Active Publication Date: 2013-09-18
BEIJING CYCLE COLUMBUS ENVIRONMENTAL SCI & TECH
View PDF4 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of poor effect of existing simple ozone oxidation and the need for destruction treatment of t

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 enhanced ozone oxidation wastewater treatment of ozone tail gas
  • Method and device for enhanced ozone oxidation wastewater treatment of ozone tail gas
  • Method and device for enhanced ozone oxidation wastewater treatment of ozone tail gas

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0045] Example 1

[0046] The object of advanced treatment is coking wastewater after biological treatment, with a COD of about 150mg / L.

[0047] The wastewater 10 first enters the pre-electrolysis unit for electrolysis reaction, the electrolysis voltage is controlled to be 2V, and the ozone tail gas 12 produced by the subsequent ozone reaction is passed into the electrocatalytic reactor at the same time. The anode 2 is made of titanium-based ruthenium dioxide plate, and the cathode 3 is made of graphite felt. The aeration device 4 is a pure titanium aeration head. The wastewater 11 (containing hydrogen peroxide) after the electrolysis reaction is pumped into the ozone oxidation unit through a pump, and ozone 13 is introduced into the ozone oxidation reactor for reaction. The ozone 13 is the ozone produced by the oxygen source, and the ozone addition amount is 100mg / L. The ozone tail gas 12 generated by the ozone oxidation unit is connected to the aeration device 4 in the pre-elec...

Example Embodiment

[0048] Example 2

[0049] The object of advanced treatment is the wastewater from the linmycin production after biological treatment, and the COD is about 300mg / L.

[0050] The wastewater 10 first enters the pre-electrolysis unit for electrolysis reaction, the electrolysis voltage is controlled to 7V, and the ozone tail gas 12 produced by the subsequent ozone reaction is passed into the electrocatalytic reactor at the same time. The anode 2 is made of titanium-based titanium dioxide plate, and the cathode 3 is made of activated carbon and polytetrafluoroethylene. The powder electrode formed by bonding and pressing of ethylene emulsion, the aeration device 4 is a pure titanium aeration head. The wastewater 11 (containing hydrogen peroxide) after the electrolysis reaction is pumped into the ozone oxidation unit, and ozone 13 is passed into the ozone oxidation reactor for reaction. The ozone 13 is the ozone produced by the oxygen source, and the ozone addition amount is 200 mg / L. The...

Example Embodiment

[0051] Example 3

[0052] The advanced treatment object is the printing and dyeing wastewater after biological treatment, and the COD is about 250mg / L.

[0053] The wastewater 10 first enters the pre-electrolysis unit for electrolysis reaction, the electrolysis voltage is controlled to 4V, the ozone tail gas 12 produced by the subsequent ozone reaction is passed into the electrocatalytic reactor at the same time, the anode 2 is made of titanium-based titanium dioxide plate, the cathode 3 is made of activated carbon fiber, aeration Device 4 is a silica gel aeration head. The wastewater 11 (containing hydrogen peroxide) after the electrolysis reaction is pumped into the ozone oxidation unit through a pump, and ozone 13 is passed into the ozone oxidation reactor for reaction. The ozone 13 is the ozone produced by the oxygen source, and the amount of ozone added is 150mg / L. The ozone tail gas 12 generated by the ozone oxidation unit is connected to the aeration device 4 in the pre-ele...

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 relates to a method and a device for enhanced ozone oxidation wastewater treatment of ozone tail gas. According to the method, ozone and oxygen in ozone oxidation reaction tail gas are subjected to electrocatalytic reduction to obtain hydrogen peroxide; the hydrogen peroxide catalyzes the ozone to generate hydroxyl radicals; and organic matters in wastewater are mineralized and decomposed. The device comprises a pre-electrolysis unit and an ozone oxidation unit, wherein a tail gas outlet of the ozone oxidation unit is connected to the pre-electrolysis unit. According to the method and the device, oxygen and ozone resources in the tail gas are fully utilized; destroying treatment is not needed; and an ozone oxidation treatment effect is enhanced.

Description

technical field [0001] The invention belongs to the field of wastewater treatment, and in particular relates to a method and a device for ozone tail gas enhanced ozone oxidation wastewater treatment. Background technique [0002] After biological treatment of wastewater, the remaining organic matter is usually difficult to biodegrade. These organic substances have the "three causes" of carcinogenicity, teratogenicity and mutagenicity, which are extremely harmful and must be removed deeply. For these low-concentration refractory organics, the available technologies are mainly adsorption and oxidation. The adsorption method usually uses activated carbon as the adsorbent. The adsorption capacity of activated carbon is limited, and the regeneration cost after saturation is very high. At the same time, the waste carbon adsorbed and saturated with refractory organic matter becomes hazardous solid waste and causes secondary pollution. Oxidation technology mainly adopts advanced o...

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): C02F1/78C02F1/72
Inventor 李玉平李海波刘晨明林琳刘永胜
Owner BEIJING CYCLE COLUMBUS ENVIRONMENTAL SCI & TECH
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