Method for preparing adsorbing material from astragalus membranaceus waste residues and application of adsorbing material

A technology for adsorbing materials and waste residues, which is applied in chemical instruments and methods, adsorbed water/sewage treatment, other chemical processes, etc. The effect of reduced chemical degree and strong water absorption

Pending Publication Date: 2021-08-10
ZHANG ZHOU HALTH VOCATIONAL COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a method for preparing adsorption material from astragalus waste residue and its application to solve the problems of unsatisfactory purification effect and incomplete purification of heavy metal ions in waste water purified by existing adsorption materials

Method used

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  • Method for preparing adsorbing material from astragalus membranaceus waste residues and application of adsorbing material
  • Method for preparing adsorbing material from astragalus membranaceus waste residues and application of adsorbing material
  • Method for preparing adsorbing material from astragalus membranaceus waste residues and application of adsorbing material

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Effect test

Embodiment 1

[0037] The astragalus waste residue of this embodiment is used to prepare an adsorption material, which is composed of diatomite, titanium dioxide, waste residue of astragalus, a binder and an activator after being mixed and calcined, and the parts by weight of each component of the raw material are as follows:

[0038]

[0039]

[0040] The activator is a mixed solution of magnesium nitrate and magnesium sulfate, the mass concentration of the magnesium nitrate is 15%, the mass concentration of the magnesium sulfate is 10%, and the molar ratio of the two is 1:1.

[0041] The preparation method of above-mentioned astragalus waste slag preparation adsorption material is as follows:

[0042] (1) The process of pretreatment of astragalus waste residue is as follows: Stir the waste residue of Astragalus membranaceus at 50°C and soak it in potassium hydroxide solution for at least 12 hours; filter, dry the filter residue at 110°C for 1 hour, and pulverize it into a 100-mesh pow...

Embodiment 2

[0052] The astragalus waste residue of this embodiment is used to prepare an adsorption material, which is composed of diatomite, titanium dioxide, waste residue of astragalus, a binder and an activator after being mixed and calcined, and the parts by weight of each component of the raw material are as follows:

[0053]

[0054] The activator is a mixed solution of magnesium nitrate and magnesium sulfate, the mass concentration of the magnesium nitrate is 20%, the mass concentration of the magnesium sulfate is 15%, and the molar ratio of the two is 1:1.

[0055] The preparation method of above-mentioned astragalus waste slag preparation adsorption material is as follows:

[0056] (1) The process of pretreatment of astragalus waste residues is as follows: Stir the waste residues of Astragalus membranaceus at 80°C and soak them in potassium hydroxide solution for at least 12 hours; filter, dry the filter residues at 90°C for 1 hour, and pulverize them into 150-mesh powder;

...

Embodiment 3

[0066] The astragalus waste residue of this embodiment is used to prepare an adsorption material, which is composed of diatomite, titanium dioxide, waste residue of astragalus, a binder and an activator after being mixed and calcined, and the parts by weight of each component of the raw material are as follows:

[0067]

[0068] The activator is a mixed solution of magnesium nitrate and magnesium sulfate, the mass concentration of the magnesium nitrate is 15%, the mass concentration of the magnesium sulfate is 10%, and the molar ratio of the two is 1:1.

[0069] The preparation method of above-mentioned astragalus waste slag preparation adsorption material is as follows:

[0070] (1) The process of pretreatment of astragalus waste residues is as follows: Stir the waste residues of Astragalus membranaceus at 60°C and soak them in potassium hydroxide solution for at least 12 hours; filter, dry the filter residues at 100°C for 1 hour, and pulverize them into 100-mesh powder;

...

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Abstract

The invention discloses an adsorbing material prepared from astragalus membranaceus waste residues and application of the adsorbing material. The adsorbing material is prepared from diatomite, titanium dioxide, the astragalus membranaceus waste residues, a binder and an activating agent. The preparation method comprises the steps of (1) pretreating the astragalus membranaceus waste residues to prepare powder; (2) crushing diatomite, sieving with a 100-mesh sieve, then adding a proper amount of water, continuously stirring to prepare slurry, and then mixing the slurry with the powder, nanoscale titanium dioxide and the binder to prepare a slurry ball; (3) cutting the prepared slurry ball into slices, air-drying the slices, and carbonizing the slices in a carbonization furnace; (4) cooling the carbonized material, adding the cooled carbonized material into an activator solution, and performing heating reaction, activation and modification treatment to obtain an activated material; and (5) cooling the activated material, washing, airing, and freeze-drying to obtain the adsorbing material. The problems that an existing adsorbing material is not ideal in adsorbing effect and not thorough in adsorbing effect are solved.

Description

technical field [0001] The invention relates to the technical field of water pollution purification materials, in particular to a method for preparing an adsorption material from astragalus waste residue and its application. Background technique [0002] After the traditional Chinese medicine is boiled to obtain the active ingredients, the dregs of the medicine are basically discarded and buried, which to a certain extent has caused resource waste and soil pollution. Since the dregs of traditional Chinese medicine contain a large amount of crude fiber, crude fat, starch, protein, amino acid and trace elements, etc., and have a high carbon content, they can be used as raw materials for the preparation of activated carbon. Therefore, using traditional Chinese medicine dregs as one of the raw materials for the production of activated carbon has opened up a new way for the resource utilization of traditional Chinese medicine dregs. [0003] The Chinese patent with the applicati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/14B01J20/06B01J20/30C02F1/28C02F1/72C02F101/20C02F101/22C02F101/30
CPCB01J20/20B01J20/14B01J20/06B01J20/3042B01J20/3078B01J20/3085C02F1/283C02F1/725B01J2220/485B01J2220/4887C02F2101/20C02F2101/22C02F2101/30C02F2305/10
Inventor 张刚
Owner ZHANG ZHOU HALTH VOCATIONAL COLLEGE
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