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Separation type Venturi tube hybrid electrocatalysis ozonizing method and device

A technology of tubular mixing and Venturi tube, applied in chemical instruments and methods, oxidized water/sewage treatment, special compound water treatment, etc., can solve the problems of pollution, inability to effectively treat various specific pollutants in water, etc., and achieve elimination Effects of pollution, life extension, and ecological safety protection

Active Publication Date: 2017-09-15
南京南开伊沃环境研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] Water pollution has been an indisputable fact, but the prior art cannot effectively deal with a variety of specific pollutants in water, and the present invention is dedicated to researching and solving this key technical problem

Method used

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  • Separation type Venturi tube hybrid electrocatalysis ozonizing method and device
  • Separation type Venturi tube hybrid electrocatalysis ozonizing method and device
  • Separation type Venturi tube hybrid electrocatalysis ozonizing method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Prepare 500ml of sewage containing bisphenol A (BPA) 10mg / l, self-made nitrogen-doped carbon nanotube membrane electrode as cathode, counter electrode as titanium sheet, DC voltage 3V, reaction initial pH 10.2, initial current 15mA, ozone generation concentration 8 %, flow 0.5L / min. use figure 1 reaction device. Determination of the removal rate of effluent TOC:

[0041] time (min)

Embodiment 2

[0043] Prepare 500ml of sewage containing bisphenol A (BPA) 10mg / l, self-made nitrogen-doped carbon nanotube membrane electrode as anode, counter electrode as titanium sheet, DC voltage 3V, reaction initial pH 10.2, initial current 15mA, ozone generation concentration 8 %, flow 0.5L / min. use figure 1 reaction device. Determination of the removal rate of effluent TOC:

[0044] time (min)

Embodiment 3

[0046] Prepare 500ml of sewage containing bisphenol A (BPA) 10mg / l, self-made multi-walled carbon nanotube membrane electrode as cathode, counter electrode as titanium sheet, DC voltage 3V, reaction initial pH 10.2, initial current 15mA, ozone generation concentration 8 %, flow 0.5L / min. use figure 1 reaction device. Determination of the removal rate of effluent TOC:

[0047] time (min)

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Abstract

The invention provides a separation type Venturi tube hybrid electrocatalysis ozonizing method and device, and belongs to the technical fields of water treatment and environmental friendliness. The method is a novel pollutant removing process combining efficient dissolution of ozone and a carbon material three-dimensional transmission electrode, is economical and efficient, has a relatively high capability for removing insoluble novel pollutants (medicines and personal-care supply pollutants PPCPs, such as antibiotics, endocrine disrupting chemicals (EDCs), drinking-water disinfection by-products (DBPs), perfluoro organic compounds representative compounds perfluorooctane sulfonate (PFOS) and perfluorooctanic acid (PFOA), brominated flame retardant polybrominated diphenyl ethers (PBDEs) and the like), and has complete removing effect. In the effluent treated by the method, a target pollutant mineralization removal rate is higher than 90 percent, and the water quality safety can be guaranteed.

Description

technical field [0001] The invention belongs to the technical field of water treatment and environmental protection, in particular to a separate Venturi tube type hybrid electrocatalytic ozonation method and device. Background technique [0002] Advanced oxidation processes (Advanced oxidation processes, referred to as AOPs), was proposed by Glaze in 1987, it is defined as a method to achieve the purpose of removing organic matter by destroying the structure of macromolecular organic matter through the oxidation of a large number of hydroxyl radicals (OH). class method. Currently commonly used methods are: Fenton method, O 3 and its combined oxidation method (such as O 3 / catalyst method, O 3 / UV method, O 3 / UV / catalyst method, O 3 / H 2 o 2 Law, O 3 / UV / H 2 o 2 method, etc.), photochemical oxidation method (such as UV method, UV / catalyst method, UV / H 2 o 2 Method, UV / H 2 o 2 / catalyst method, etc.), electrochemical oxidation method and other advanced oxidati...

Claims

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Application Information

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IPC IPC(8): C02F1/78C02F1/461
CPCC02F1/4672C02F2305/02
Inventor 华涛陈红辉周启星李凤祥
Owner 南京南开伊沃环境研究院有限公司
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