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Preparation method of functionalized multi-wall carbon nanotube aqueous oxygen production material

A technology of multi-walled carbon nanotubes and functionalization, applied in chemical instruments and methods, water pollutants, biological water/sewage treatment, etc., can solve the problems of reducing water transparency, difficult biodegradation, industrial wastewater, etc., and achieve wastewater Good treatment effect, simple preparation process and simple preparation method

Pending Publication Date: 2019-11-05
NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current industrial wastewater has the characteristics of large discharge, strong pollution and difficult biodegradation
At present, the treatment of industrial wastewater is developing in the direction of anti-photolysis, anti-oxidation, and anti-biodegradation, making it more and more difficult for these industrial wastewater to be treated by general water treatment systems
The discharge of industrial wastewater into the environmental water body will reduce the transparency of the water body, consume a large amount of oxygen in the water, cause the water body to be hypoxic, affect the growth of aquatic organisms and microorganisms, destroy the self-purification of the water body, and have certain biological toxicity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A preparation method of functionalized multi-walled carbon nanotube water oxygen-generating material, comprising the following steps:

[0028] (1) Wash the sludge cultivated in the SBR reactor with UP water for 3 to 5 times, then dry at 102 to 105°C, grind, and sieve with 80 to 100 mesh to obtain dry sludge powder;

[0029] (2) the black iron oxide that will make is washed repeatedly until neutrality with UP water, for subsequent use;

[0030] (3) Mix thrush and gray manganese oxide, add concentrated sulfuric acid and phosphoric acid, put the three-neck flask in an oil bath at 45-50°C for 11-13 hours, pour the solution on ice after the reaction, and slowly carry out magnetic stirring , add hydrogen peroxide, and react for 25 to 35 minutes. The obtained mixture is centrifuged at a speed of 7000 to 8000 r / min. The obtained mixture is washed with hydrochloric acid, alcohol and ethoxyethane, and the finally obtained solid sample is placed in a vacuum drying oven for 40 Dry...

Embodiment 2

[0040] A preparation method of functionalized multi-walled carbon nanotube water oxygen-generating material, comprising the following steps:

[0041] (1) Wash the sludge cultivated in the SBR reactor with UP water for 3 to 5 times, then dry at 102 to 105°C, grind, and sieve through 80 to 100 mesh to obtain dry sludge powder;

[0042](2) the black iron oxide that will make is washed repeatedly until neutrality with UP water, for subsequent use;

[0043] (3) Mix thrush and gray manganese oxide, add concentrated sulfuric acid and phosphoric acid, put the three-neck flask in an oil bath at 45-50°C for 11-13 hours, pour the solution on ice after the reaction, and slowly carry out magnetic stirring , add hydrogen peroxide, and react for 25 to 35 minutes. The obtained mixture is centrifuged at a speed of 7000 to 8000 r / min. The obtained mixture is washed with hydrochloric acid, alcohol and ethoxyethane, and the finally obtained solid sample is placed in a vacuum drying oven for 40 D...

Embodiment 3

[0064] A preparation method of functionalized multi-walled carbon nanotube water oxygen-generating material, comprising the following steps:

[0065] (1) Wash the sludge cultivated in the SBR reactor with UP water for 3 to 5 times, then dry at 102 to 105°C, grind, and sieve through 80 to 100 mesh to obtain dry sludge powder;

[0066] (2) the black iron oxide that will make is washed repeatedly until neutrality with UP water, for subsequent use;

[0067] (3) Mix thrush and gray manganese oxide, add concentrated sulfuric acid and phosphoric acid, put the three-neck flask in an oil bath at 45-50°C for 11-13 hours, pour the solution on ice after the reaction, and slowly carry out magnetic stirring , add hydrogen peroxide, and react for 25 to 35 minutes. The obtained mixture is centrifuged at a speed of 7000 to 8000 r / min. The obtained mixture is washed with hydrochloric acid, alcohol and ethoxyethane, and the finally obtained solid sample is placed in a vacuum drying oven for 40 ...

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Abstract

A preparation method of a functionalized multi-wall carbon nanotube aqueous oxygen production material comprises the following steps: (1) preparing dry sludge powder; (2) repeatedly cleaning preparedblack iron oxide with UP water until the black iron oxide is neutral for later use; (3) mixing graphite with potassium permanganate, and adding concentrated sulfuric acid and phosphoric acid to obtaina solid sample; (4) respectively dispersing the solid sample in the step (3) and multi-wall carbon nanotube into water to obtain dispersion liquid; and (5) dissolving the product prepared in the step(4) in acetic acid, adding the black iron oxide prepared in the step (2) into the mixed solution, and adding the dry sludge powder prepared in the step (1) into the mixed solution to obtain the functionalized multi-wall carbon nanotube aqueous oxygen production material finally. According to the preparation method, the sludge is recycled, furthermore, wastewater is efficiently treated, a preparation process is simple, and the application prospect is large.

Description

technical field [0001] The invention relates to the field of environmental protection of wastewater treatment, in particular to a preparation method of functionalized multi-walled carbon nanotube water-based oxygen-generating material. Background technique [0002] my country's water environment is seriously polluted, and rivers and lakes are generally polluted. For example, 75% of lakes have experienced eutrophication to varying degrees; 90% of urban waters are seriously polluted, which further aggravates the shortage of water resources and has great impact on the improvement of residents' lives and economic sustainability. The implementation of the development has had serious negative effects. [0003] In recent years, the rapid development of industrialization has caused many environmental pollution problems, coupled with serious water pollution, exacerbated the shortage of water resources. The current industrial wastewater has the characteristics of large discharge, stro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/12C02F101/16C02F101/30
CPCC02F3/12C02F2101/16C02F2101/30Y02W10/10
Inventor 张亚冯艳红王国庆孔令雅郑丽萍李敏
Owner NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA