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Three-dimensional electro-catalytic reaction equipment system based on multifunctional catalytic particle electrode

A multi-functional catalytic and granular electrode technology, which is applied in the field of water treatment, can solve the problems of ignoring the catalytic reduction ability of granular electrodes to inorganic pollutants, and achieve excellent electrocatalytic denitrification performance, increased reaction area, and large specific surface area.

Pending Publication Date: 2022-08-02
QINGDAO TECHNOLOGICAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Most of the traditional three-dimensional electrode / electro-Fenton technology systems are dedicated to catalyzing the generation of active species (hydroxyl radicals, etc.) for the degradation of organic matter, while ignoring the catalytic reduction ability of particle electrodes to inorganic pollutants. The three-dimensional electrocatalytic reaction equipment system of functional catalytic granular electrodes provides a granular electrode capable of synchronous oxidation and reduction multifunctional catalysis, which is used for synchronous electrocatalytic oxidation and degradation of organic pollutants in wastewater and catalytic reduction of nitrate radicals in inorganic pollutants

Method used

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  • Three-dimensional electro-catalytic reaction equipment system based on multifunctional catalytic particle electrode
  • Three-dimensional electro-catalytic reaction equipment system based on multifunctional catalytic particle electrode
  • Three-dimensional electro-catalytic reaction equipment system based on multifunctional catalytic particle electrode

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Embodiment 1

[0029] A preparation method of Fe-Cu-C particle electrode, comprising the following steps:

[0030]Pour 2g of carbon black, 8g of coconut shell activated carbon and 30g of anhydrous ethanol into a ball milling jar, make it ball-milled and mix evenly to obtain mixed carbon powder, and then place it in a constant temperature drying oven at 100°C to dry to constant weight; accurately weigh 1.80 g (2.5wt%) ferric nitrate nonahydrate and 0.95g (2.5wt%) copper nitrate trihydrate were dissolved in 4.0g absolute ethanol, and then 25g phenolic resin was added to obtain a mixed solution, which was mixed with 10g prepared in the previous step The mixed carbon powder is mixed to form mud blocks, which are formed into small balls with a particle size of 3-5 mm; the small balls prepared above are placed in a constant temperature drying oven for drying at 100 ° C for 12 hours, and the above-mentioned dried small balls are placed in In a tube furnace, the Fe-Cu-C particle electrode of Example...

Embodiment 2

[0032] A preparation method of Fe-Cu-C particle electrode, comprising the following steps:

[0033] Pour 2g of carbon black, 8g of coconut shell activated carbon and 30g of anhydrous ethanol into a ball mill jar, make it ball-milled and mix evenly to obtain a mixed carbon powder, and then place it in a constant temperature drying oven at 100°C to dry to constant weight; accurately weigh 0.72 g (1.0wt%) ferric nitrate nonahydrate and 0.38g (1.0wt%) copper nitrate trihydrate were dissolved in 4.0g absolute ethanol, and then 25g phenolic resin was added to obtain a mixed solution, which was mixed with 10g prepared in the previous step The mixed carbon powder is mixed to form mud blocks, which are formed into small balls with a particle size of 3-5 mm; the small balls prepared above are placed in a constant temperature drying oven for drying at 100 ° C for 12 hours, and the above-mentioned dried small balls are placed in In a tube furnace, the Fe-Cu-C particle electrode of Example...

Embodiment 3

[0035] A preparation method of Fe-Cu-C particle electrode, comprising the following steps:

[0036] Pour 2g of carbon black, 8g of coconut shell activated carbon and 30g of anhydrous ethanol into a ball milling jar, make it ball mill and mix evenly to obtain mixed carbon powder, and then place it in a constant temperature drying oven at 100°C to dry to constant weight; accurately weigh 3.60 g (5.0wt%) ferric nitrate nonahydrate and 1.90g (5.0wt%) copper nitrate trihydrate were dissolved in 4.0g absolute ethanol, and then 25g phenolic resin was added to obtain a mixed solution, which was mixed with 10g prepared in the previous step The mixed carbon powder is mixed to form mud blocks, which are formed into small balls with a particle size of 3-5 mm; the small balls prepared above are placed in a constant temperature drying oven for drying at 100 ° C for 12 hours, and the above-mentioned dried small balls are placed in In a tube furnace, the Fe-Cu-C particle electrode of Example ...

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Abstract

The invention discloses a three-dimensional electro-catalytic reaction equipment system based on a multifunctional catalytic particle electrode. The multifunctional catalytic particle electrode is formed by compounding Fe, Cu, carbon black, cocoanut active charcoal and phenolic resin, and the particle electrode is Fe-Cu-C particles with multifunctional catalytic activity. The Fe-Cu-C particle electrode synthesized in the three-dimensional electro-catalysis reaction equipment system is filled between the cathode and the anode, and the water flow direction is from the anode to the cathode, so that the water body in the particle filling bed is acidic, the reacted water body flows through the cathode area, and the effluent is automatically adjusted to be neutral. The invention also discloses a preparation method of the particle electrode and an application method of the three-dimensional electro-catalysis reaction equipment system in synchronous electro-catalysis of oxidative degradation of organic pollutants and catalytic reduction of inorganic pollutant nitrate radicals in wastewater.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a three-dimensional electrocatalytic reaction equipment system based on multifunctional catalytic particle electrodes. Background technique [0002] Phenolic compounds are widely found in coking, gas, oil refining and other industrial wastewater, and have the characteristics of high biotoxicity and refractory degradation. At present, the traditional chemical wastewater is illustrated by taking phenol-containing wastewater as an example: phenol-containing wastewater mainly comes from coking, gas, oil refining, and chemical and pharmaceutical production processes using phenol or phenolic as raw materials. It is one of the toxic and harmful wastewater that is listed as a key solution in the water pollution control of various countries. At present, the traditional chemical wastewater treatment methods include physical treatment methods, such as adsorption and coa...

Claims

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Application Information

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IPC IPC(8): C02F1/461C02F1/72C02F1/70C02F101/30C02F101/16
CPCC02F1/4672C02F1/4676C02F1/46109C02F2001/46133C02F2305/026C02F2101/163C02F2101/30Y02W10/10
Inventor 江波李凯赵泽坤陈菁华耿梦楠吴静丽郝永杰刘奕捷杨启鹏
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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