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Activated carbon composite material, preparation method and application thereof

A technology of composite materials and activated carbon, which is applied in the direction of chemical instruments and methods, alkali metal compounds, and other chemical processes, to achieve effective removal, good effect, and good mechanical strength

Active Publication Date: 2019-10-15
BEIJING NORMAL UNIVERSITY +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The method of removing refractory organic matter is mainly advanced oxidation method. The current research is mostly on the removal technology of these three pollutants, and there are few researches on the process that can remove these three pollutants at the same time.

Method used

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  • Activated carbon composite material, preparation method and application thereof
  • Activated carbon composite material, preparation method and application thereof
  • Activated carbon composite material, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0085] This embodiment provides a kind of activated carbon composite material, is prepared by the following method:

[0086] 1) 28g of columnar activated carbon was placed in 500mL of ferrous sulfate solution with a concentration of 1mol / L and stirred for two hours;

[0087] 2) After cleaning the activated carbon particles obtained in step 1), put them in about 300mL of ultrapure water and stir them, and at the same time, add 100mL of potassium borohydride solution with a concentration of 1.08mol / L dropwise, and continue to stir for 24 hours after the dripping, and then dissolve the The prepared material was freeze-dried at -80°C for 8 hours in a freeze dryer to obtain the obtained product.

[0088] Characterized as Figure 1-1 to Figure 5 Shown:

[0089] Reference attached Picture 1-1 And attached Figure 1-2 , is a scanning electron microscope image of the activated carbon composite material of the present invention, it can be seen that the surface of the activated carbo...

Embodiment 2

[0095] This embodiment provides a kind of activated carbon composite material, and the difference with embodiment 1 is:

[0096] The ratio of iron to carbon is 1:2.

Embodiment 3

[0098] This embodiment provides a kind of activated carbon composite material, and the difference with embodiment 1 is:

[0099] The ratio of iron to carbon is 3:1.

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Abstract

The invention relates to an activated carbon composite material, a preparation method and application thereof. The preparation method comprises the following steps: firstly, adding activated carbon into a ferrite solution, and stirring, so as to obtain activated carbon particles; ensuring that the mass molar ratio of activated carbon to ferrite is (20-100) g: 1mol; secondly, adding the activated carbon particles into a solvent, stirring under the existence of a reducing agent, and drying, so as to obtain the activated carbon composite material. The activated carbon composite material is good in mechanical strength and high number of reutilization, and has large advantage as a cleaning agent for sewage. The activated carbon composite material can effectively remove ammonia nitrogen, organics and total phosphorus by being applied to sewage treatment. After treatment, the content of total organic carbon is reduced by greater than 40 percent, fluorescence characteristic is obviously reduced, the content of ammonia nitrogen is reduced by greater than 70 percent, and the content of total phosphorus is reduced by greater than 80 percent.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to an activated carbon composite material and its preparation method and application. Background technique [0002] At this stage, our country is facing the severe test of water resource problem. Reusing the sewage discharged from the city as a second water source will greatly improve the current situation of water shortage in my country. The problems that need to be considered in the secondary effluent reuse are mainly refractory organic matter, ammonia nitrogen and total phosphorus. There are still a large number of toxic substances and potential carcinogenic pollutants in the secondary effluent, such as surfactants, additives and dyes, etc. Moreover, the contents of ammonia nitrogen and total phosphorus in the secondary effluent are relatively high. [0003] The current technologies for removing ammonia nitrogen mainly include steam stripping, struvite precipitation, io...

Claims

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Application Information

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IPC IPC(8): B01J20/20B01J20/28B01J20/30C02F1/28C02F1/72C02F101/10C02F101/16C02F101/30
CPCB01J20/20B01J20/28011C02F1/281C02F1/283C02F1/722C02F2101/105C02F2101/16C02F2101/30
Inventor 贾文娟丁爱中王大扬刘宝蕴梁信孙跃林
Owner BEIJING NORMAL UNIVERSITY
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