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Graphyne-based municipal solid waste incineration fly ash heavy metal curing material and preparation method thereof

A technology for municipal solid waste and incineration fly ash, which is used in the field of solidifying heavy metals in solidifying municipal solid waste incineration fly ash and its preparation field, can solve problems such as few studies, and achieve simple operation, significant innovative significance and application value. Effect

Pending Publication Date: 2021-11-12
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the research on graphyne at home and abroad is mainly concentrated in the fields of energy storage materials, piezoelectric materials and catalytic reduction materials, while the solidification of graphyne nanocomposite aluminosilicate materials to treat municipal solid waste little research

Method used

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  • Graphyne-based municipal solid waste incineration fly ash heavy metal curing material and preparation method thereof
  • Graphyne-based municipal solid waste incineration fly ash heavy metal curing material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The raw materials of solidified fly ash of a municipal solid waste incineration plant are as follows:

[0033] Municipal solid waste incineration fly ash 200 parts, sodium metaaluminate 20 parts, water glass 180 parts, graphdiyne 5 parts, dispersant 25 parts, mixing water 325 parts.

[0034] The preparation steps are as follows:

[0035] Weigh dimethylformamide (DMF) as a dispersant, add mixing water into the beaker, and mechanically stir with a stirring rod. After the dispersant is completely dissolved, accurately weigh the graphyne nanomaterials in the dispersant solution and placed in an ultrasonic processor, ultrasonically treated for 30min at an ultrasonic power of 300W to obtain a uniformly dispersed graphyne dispersion, wherein the mass ratio of dimethylformamide to graphyne was 5:1.

[0036] Accurately weigh sodium metaaluminate and water glass to prepare an aluminosilicate activator, add sodium metaaluminate into water glass, and place on a magnetic stirrer to...

Embodiment 2

[0040] The raw materials of solidified fly ash of a municipal solid waste incineration plant are as follows:

[0041] Municipal solid waste incineration fly ash 275 parts, sodium metaaluminate 30 parts, water glass 250 parts, graphdiyne 3 parts, dispersant 15 parts, mixing water 380 parts.

[0042] The preparation steps are as follows:

[0043] Weigh dimethylformamide (DMF) as a dispersant, add mixing water into the beaker, and mechanically stir with a stirring rod. After the dispersant is completely dissolved, accurately weigh the graphyne nanomaterial in the dispersant solution and placed in an ultrasonic processor, ultrasonically treated for 25min at an ultrasonic power of 340W to obtain a uniformly dispersed graphyne dispersion, wherein the mass ratio of dimethylformamide to graphyne was 5:1.

[0044] Accurately weigh sodium metaaluminate and water glass to prepare an aluminosilicate activator, add sodium metaaluminate into water glass, and place on a magnetic stirrer to ...

Embodiment 3

[0048] The raw materials of solidified fly ash of a municipal solid waste incineration plant are as follows:

[0049] Municipal solid waste incineration fly ash 300 parts, sodium metaaluminate 40 parts, water glass 200 parts, graphdiyne 2 parts, dispersant 10 parts, mixing water 375 parts.

[0050] The preparation steps are as follows:

[0051] Weigh dimethylformamide (DMF) as a dispersant, add mixing water into the beaker, and mechanically stir with a stirring rod. After the dispersant is completely dissolved, accurately weigh the graphyne nanomaterials in the dispersant solution and placed in an ultrasonic processor, ultrasonically treated for 40min at an ultrasonic power of 180W to obtain a uniformly dispersed graphyne dispersion, wherein the mass ratio of dimethylformamide to graphyne was 5:1.

[0052] Accurately weigh sodium metaaluminate and water glass to prepare an aluminosilicate activator, add sodium metaaluminate into water glass, and place on a magnetic stirrer to...

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Abstract

The invention belongs to the field of solid waste treatment and ecological environment materials, and provides a graphyne-based municipal solid waste incineration fly ash heavy metal curing material and a preparation method thereof, and the graphyne-based municipal solid waste incineration fly ash heavy metal curing material comprises the following raw materials: 200-400 parts of municipal solid waste incineration fly ash, 20-40 parts of sodium metaaluminate, 70-250 parts of water glass, 2-6 parts of graphyne, 10-30 parts of dimethylformamide, and 270-380 parts of mixing water. The solid waste is adopted as the raw material, the method is green and environment-friendly, the operation process is simple, meanwhile, the three-bond characteristics of nanoscale, large specific surface area, three-dimensional porous channels and extremely high activity of graphyne are fully utilized, heavy metal ions in the municipal solid waste incineration fly ash can be effectively solidified, the leaching rate of harmful heavy metal ions is remarkably reduced, excellent mechanical properties are obtained, and utilization of the municipal solid waste incineration fly ash is facilitated.

Description

technical field [0001] The invention belongs to the field of solid waste treatment and ecological environment materials, and relates to a solidification technology of heavy metals in municipal solid waste incineration fly ash, in particular to a solidified municipal solid waste incineration fly ash based on graphyne nanocomposite aluminosilicate materials Solidification material of heavy metal and preparation method thereof. Background technique [0002] With the concentration of urban population and the improvement of people's quality of life, a large amount of domestic waste is constantly produced. There are three ways to deal with domestic waste in my country: composting, landfill and incineration. Compared with the previous two treatment methods, incineration treatment can minimize land occupation, decompose harmful organic substances during the incineration process, and avoid the impact of these substances on the environment from the source. However, after incineratio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/02
CPCC04B28/021C04B2201/50C04B2111/00767C04B22/0093C04B12/04C04B24/124C04B14/024
Inventor 王宝民李天如范程程韩笑王万里韩俊南
Owner DALIAN UNIV OF TECH
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