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Nano zero-valent metal light porous spherical functional material prepared based on meteorite as well as preparation method and application of nanometer zero-valent metal light porous spherical functional material

A porous spherical, nano-zero-valent technology, applied in the field of composite materials, can solve the problems of low biological load, inability to realize simultaneous denitrification and recovery, and low porosity, and achieve large specific surface area, which is conducive to ion exchange adsorption and high The effect of porosity

Active Publication Date: 2020-01-31
HEFEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The problem solved by the present invention is that the fillers of the existing biological aerated filter have low porosity, low biological load, and cannot realize simultaneous denitrification and phosphorus recovery.

Method used

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  • Nano zero-valent metal light porous spherical functional material prepared based on meteorite as well as preparation method and application of nanometer zero-valent metal light porous spherical functional material
  • Nano zero-valent metal light porous spherical functional material prepared based on meteorite as well as preparation method and application of nanometer zero-valent metal light porous spherical functional material
  • Nano zero-valent metal light porous spherical functional material prepared based on meteorite as well as preparation method and application of nanometer zero-valent metal light porous spherical functional material

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Effect test

Embodiment 1

[0067] In this embodiment, the preparation method of nanometer zero-valent metal lightweight porous spherical functional material comprises the following steps:

[0068] 1.1 Crush the meteorite to less than 0.0374mm, mix and disperse it with alcohol, and then dry it. The dried meteorite powder is reduced and calcined in a hydrogen atmosphere at a calcination temperature of 600°C for 3 hours to obtain a nano-zero-valent metal composite material;

[0069] 1.2 The mass ratio of ordinary Portland cement, natural zeolite powder, quicklime, gypsum and aluminum powder is: ordinary Portland cement 10-30%, zeolite 50-60%, quicklime 1-15%, gypsum 1-13% %, aluminum powder 0.1-2% mixed to prepare the mixture;

[0070] 1.3 Put the polyethylene porous spherical plastic particles into a mechanical drum, and evenly sprinkle the mixture on the polyethylene porous spherical plastic particles to obtain a porous functional material; wherein, the polyethylene porous spherical plastic particles hav...

Embodiment 2

[0077] In this embodiment, the preparation method of nanometer zero-valent metal lightweight porous spherical functional material comprises the following steps:

[0078] 2.1 Crush the meteorite to less than 0.0374mm, mix and disperse it with alcohol, and then dry it. Calcinate the dried meteorite powder in a hydrogen atmosphere at a temperature of 900°C for 2 hours to prepare a nano-zero-valent metal composite material;

[0079] 2.2 The mass ratio of ordinary Portland cement, natural zeolite powder, quicklime, gypsum and aluminum powder is: ordinary Portland cement 10-30%, zeolite 50-60%, quicklime 1-15%, gypsum 1-13% %, aluminum powder 0.1-2% mixed to prepare the mixture;

[0080] 2.3 Put polyethylene porous spherical plastic particles into a mechanical drum, and evenly sprinkle the mixture on the polyethylene porous spherical plastic particles to obtain a porous functional material, and evenly spray some water, so that the porous functional material becomes spherical under ...

Embodiment 3

[0086] In this embodiment, the preparation method of nanometer zero-valent metal lightweight porous spherical functional material comprises the following steps:

[0087] 3.1 Crush the meteorite to less than 0.0374mm, mix it with alcohol and disperse it, then dry it, and calcinate the dried meteorite powder in a hydrogen atmosphere at a temperature of 400°C for 5 hours to obtain a nano-zero-valent metal composite material;

[0088] 3.2 The mass ratio of ordinary Portland cement, natural zeolite powder, quicklime, gypsum and aluminum powder is: ordinary Portland cement 10-30%, zeolite 50-60%, quicklime 1-15%, gypsum 1-13% %, aluminum powder 0.1-2% mixed to prepare the mixture;

[0089] 3.3 Put polyethylene porous spherical plastic particles into a mechanical drum, and evenly sprinkle the mixture on the polyethylene porous spherical plastic particles to obtain a porous functional material, and evenly spray some water, so that the porous functional material becomes spherical unde...

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Abstract

The invention provides a nano zero-valent metal light porous spherical functional material prepared on the basis of meteorite as well as a preparation method and application of the nano zero-valent metal light porous spherical functional material. The preparation method of the nano zero-valent metal light porous spherical functional material comprises the following steps: S1, taking meteorite powder as a raw material, and carrying out reduction calcination to obtain a nanometer zero-valent metal composite material; s2, mixing zeolite, cement, quick lime, aluminum powder, gypsum and a surfactant to obtain a mixture; and S3, taking polyethylene porous spherical plastic particles as a skeleton, and uniformly adhering the mixture to the skeleton to prepare a zeolite-based light porous spherical functional material; and S4, uniformly spraying the nano zero-valent metal composite material on the zeolite-based light porous spherical functional material to obtain the nano zero-valent metal light porous spherical functional material. The porous carbon material has the advantages of multi-level pores, higher porosity, larger specific surface area, regular shape and light weight.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a nanometer zero-valent metal light porous spherical functional material prepared based on meteorite, its preparation method and application. Background technique [0002] Phosphorus is one of the indispensable nutrients for human survival. It is mainly stored in the earth's crust in the form of phosphate rock, which is a non-metallic mineral resource that is difficult to regenerate. Phosphorus flows in a straight line of "land → ocean" on the earth. More than 80% of the phosphorus mined from phosphate rocks is used for the production of phosphate fertilizers. More than 50% of the phosphorus in the phosphate fertilizers that has not been absorbed by crops will form surface runoff due to the erosion of rainwater. In the case of treatment, it enters the surface water body with the excrement; finally, phosphorus enters the ocean according to the natural law of "all rive...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/10C02F3/28C02F3/34C02F101/10C02F101/16C02F101/30
CPCC02F3/105C02F3/109C02F1/288C02F1/58C02F1/42C02F3/2806C02F3/342C02F1/72C02F2101/16C02F2101/30C02F2101/105Y02W10/10
Inventor 鲍腾金杰吴克王晓飞卫新来张勇
Owner HEFEI UNIV
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