Preparation method of microporous carbon electrode for electrolytic catalytic oxidation-air floatation equipment capable of efficiently removing oil

Abstract

The invention relates to the field of environmental protection, in particular to a preparation method of a microporous carbon electrode for electrolytic catalytic oxidation air floatation equipment capable of efficiently removing oil, which comprises the following steps: by using a microporous carbon electrode as a working electrode, uniformly mixing 13.2-18.6 parts of graphite powder, 0.6-1.4 parts of silicon carbide, 52-68 parts of isopropanol, 0.3-0.6 part of polytetrafluoroethylene, 5.2-8.6 parts of acetylene black and 0.1-0.4 part of polymer microspheres into a ball mill, carrying out ball milling for 5-10 h while controlling the rotating speed at 200-300 r / min, and adding 0.8-2.3 parts of liquid paraffin and 5-8 parts of a nickel complex titanium silicalite molecular sieve into the ball mill to obtain paste; and adding the obtained paste into a polytetrafluoroethylene mold, compacting under the pressure of 5-15 MPa, carrying out vacuum drying for 5-10 h at the temperature of 60-80 DEG C, then putting the electrode into acetone, soaking for 2-5 h, and washing for 2-3 times by using acetone after soaking is finished, so as to obtain the microporous carbon electrode.

Description

technical field

[0001] The invention relates to the field of environmental protection, and relates to industrial sewage treatment equipment, in particular to a method for preparing a microporous carbon electrode for an electrolytic catalytic oxidation-air flotation equipment with high-efficiency oil removal. Background technique

[0002] Advanced Oxidation Technology (AOPs) generates hydroxyl radicals (·OH) with strong oxidation ability under the action of electricity, chemical oxidants, light, etc. Hydroxyl radicals have strong oxidative degradation ability and can mineralize organic pollutants (especially refractory organic matter) and decompose them into carbon dioxide and water.

[0003] CN202010088842.2 discloses a preparation method of a phenolic resin-based oxygen-doped microporous carbon electrode material. Stir 3-fluorophenol and hexamethylenetetramine at room temperature, then hydrothermally polymerize to obtain a fluorophenolic resin, which is washed and dried , ...

Examples

Embodiment 1

[0032] A preparation method of a microporous carbon electrode for electrolytic catalytic oxidation-air flotation equipment with high efficiency oil removal, the electrolytic catalytic oxidation-air flotation equipment includes an electrolysis device, and the electrolysis device uses an electrolysis electrode, and the electrolysis electrode is a A kind of microporous carbon electrode; Its concrete preparation scheme is as follows:

[0033] Put 13.2kg of graphite powder, 0.6kg of silicon carbide, 52kg of isopropanol, 0.3kg of polytetrafluoroethylene, 5.2kg of acetylene black, and 0.1kg of polymer microspheres into the ball mill, control the speed at 200r / min, and mill for 5 hours. Then add 0.8kg liquid paraffin and 5kg nickel complex titanium-silicon molecular sieve into the ball mill, the hole ball mill speed is 150r / min, continue ball milling for 5h, after the completion of the paste, add the obtained paste to polytetrafluoroethylene In the mold, compact under a pressure of 5 ...

Embodiment 2

[0042] A preparation method of a microporous carbon electrode for electrolytic catalytic oxidation-air flotation equipment with high efficiency oil removal, the electrolytic catalytic oxidation-air flotation equipment includes an electrolysis device, and the electrolysis device uses an electrolysis electrode, and the electrolysis electrode is a A kind of microporous carbon electrode; Its concrete preparation scheme is as follows:

[0043] Described a kind of microporous carbon electrode, its specific preparation scheme is as follows:

[0044] Put 15.2kg of graphite powder, 1kg of silicon carbide, 58kg of isopropanol, 0.4kg of polytetrafluoroethylene, 6.8kg of acetylene black, and 0.3kg of polymer microspheres into a ball mill, control the speed at 250r / min, ball mill for 8 hours, and then Add 1.3kg of liquid paraffin and 7kg of nickel complex titanium-silicon molecular sieve into the ball mill, the speed of the Confucius ball mill is 200r / min, and continue the ball milling for...

Embodiment 3

[0053] A preparation method of a microporous carbon electrode for electrolytic catalytic oxidation-air flotation equipment with high efficiency oil removal, the electrolytic catalytic oxidation-air flotation equipment includes an electrolysis device, and the electrolysis device uses an electrolysis electrode, and the electrolysis electrode is a A kind of microporous carbon electrode; Its concrete preparation scheme is as follows:

[0054] Put 18.6kg of graphite powder, 1.4kg of silicon carbide, 68kg of isopropanol, 0.6kg of polytetrafluoroethylene, 8.6kg of acetylene black, and 0.4kg of polymer microspheres into the ball mill, control the speed at 300r / min, and mill for 10 hours. Then add 2.3kg of liquid paraffin and 8kg of nickel complex titanium silicon molecular sieve into the ball mill, the speed of the Confucius ball mill is 250r / min, and continue the ball milling for 10h. After completion, a paste is obtained, and the obtained paste is added to polytetrafluoroethylene In...

technical field

[0001] The invention relates to the field of environmental protection, and relates to industrial sewage treatment equipment, in particular to a method for preparing a microporous carbon electrode for an electrolytic catalytic oxidation-air flotation equipment with high-efficiency oil removal. Background technique

[0002] Advanced Oxidation Technology (AOPs) generates hydroxyl radicals (·OH) with strong oxidation ability under the action of electricity, chemical oxidants, light, etc. Hydroxyl radicals have strong oxidative degradation ability and can mineralize organic pollutants (especially refractory organic matter) and decompose them into carbon dioxide and water.

[0003] CN202010088842.2 discloses a preparation method of a phenolic resin-based oxygen-doped microporous carbon electrode material. Stir 3-fluorophenol and hexamethylenetetramine at room temperature, then hydrothermally polymerize to obtain a fluorophenolic resin, which is washed and dried , ...

Examples

Embodiment 1

[0032] A preparation method of a microporous carbon electrode for electrolytic catalytic oxidation-air flotation equipment with high efficiency oil removal, the electrolytic catalytic oxidation-air flotation equipment includes an electrolysis device, and the electrolysis device uses an electrolysis electrode, and the electrolysis electrode is a A kind of microporous carbon electrode; Its concrete preparation scheme is as follows:

[0033] Put 13.2kg of graphite powder, 0.6kg of silicon carbide, 52kg of isopropanol, 0.3kg of polytetrafluoroethylene, 5.2kg of acetylene black, and 0.1kg of polymer microspheres into the ball mill, control the speed at 200r / min, and mill for 5 hours. Then add 0.8kg liquid paraffin and 5kg nickel complex titanium-silicon molecular sieve into the ball mill, the hole ball mill speed is 150r / min, continue ball milling for 5h, after the completion of the paste, add the obtained paste to polytetrafluoroethylene In the mold, compact under a pressure of 5 ...

Embodiment 2

[0042] A preparation method of a microporous carbon electrode for electrolytic catalytic oxidation-air flotation equipment with high efficiency oil removal, the electrolytic catalytic oxidation-air flotation equipment includes an electrolysis device, and the electrolysis device uses an electrolysis electrode, and the electrolysis electrode is a A kind of microporous carbon electrode; Its concrete preparation scheme is as follows:

[0043] Described a kind of microporous carbon electrode, its specific preparation scheme is as follows:

[0044] Put 15.2kg of graphite powder, 1kg of silicon carbide, 58kg of isopropanol, 0.4kg of polytetrafluoroethylene, 6.8kg of acetylene black, and 0.3kg of polymer microspheres into a ball mill, control the speed at 250r / min, ball mill for 8 hours, and then Add 1.3kg of liquid paraffin and 7kg of nickel complex titanium-silicon molecular sieve into the ball mill, the speed of the Confucius ball mill is 200r / min, and continue the ball milling for...

Embodiment 3

[0053] A preparation method of a microporous carbon electrode for electrolytic catalytic oxidation-air flotation equipment with high efficiency oil removal, the electrolytic catalytic oxidation-air flotation equipment includes an electrolysis device, and the electrolysis device uses an electrolysis electrode, and the electrolysis electrode is a A kind of microporous carbon electrode; Its concrete preparation scheme is as follows:

[0054] Put 18.6kg of graphite powder, 1.4kg of silicon carbide, 68kg of isopropanol, 0.6kg of polytetrafluoroethylene, 8.6kg of acetylene black, and 0.4kg of polymer microspheres into the ball mill, control the speed at 300r / min, and mill for 10 hours. Then add 2.3kg of liquid paraffin and 8kg of nickel complex titanium silicon molecular sieve into the ball mill, the speed of the Confucius ball mill is 250r / min, and continue the ball milling for 10h. After completion, a paste is obtained, and the obtained paste is added to polytetrafluoroethylene In...

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