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A method for preparing magnetic biochar from traditional Chinese medicine residue, magnetic biochar and application

A technology of traditional Chinese medicine dregs and biochar, which is applied in the field of biomass resource utilization, can solve the problems of waste of resources and a large amount of funds, and achieve the effects of simple production process, low cost, good economic value and practicability

Active Publication Date: 2020-08-11
CHINA PHARM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problem that the traditional disposal method of existing traditional Chinese medicine dregs not only needs a lot of money, but also may cause waste of resources, the present invention provides a method for preparing magnetic biochar from traditional Chinese medicine dregs, magnetic biochar and its application, so as to realize the resource recovery of traditional Chinese medicine dregs The method has the advantages of simple operation and easy-to-obtain raw materials; the magnetic biochar prepared by the method of the present invention has the characteristics of good solid-liquid separation effect, high adsorption capacity for heavy metals and antibiotic pollutants, and reusability.

Method used

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  • A method for preparing magnetic biochar from traditional Chinese medicine residue, magnetic biochar and application
  • A method for preparing magnetic biochar from traditional Chinese medicine residue, magnetic biochar and application
  • A method for preparing magnetic biochar from traditional Chinese medicine residue, magnetic biochar and application

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Embodiment 1

[0040] Such as figure 1 Shown flow chart, a kind of method of utilizing Radix Glycyrrhizae dregs to prepare magnetic biochar of the present invention, concrete steps are as follows:

[0041] (1) Glycyrrhizae dregs were washed and dried, crushed to 20 meshes, 100 g of powder was taken, and 200 mL of sodium carbonate solution with a mass concentration of 5% was added to the licorice dregs powder, stirred thoroughly, ultrasonically treated for 5 min, and then Immerse at room temperature for 2 hours, discard the residual liquid, and dry for later use;

[0042] (2) Add 200mL of ferric chloride solution with a mass concentration of 5% to the dried licorice dregs powder according to the solid-to-liquid ratio of 1:2 and mix thoroughly, then adjust the pH to 10, and soak for 6 hours at 15°C. Stir fully during the dipping process, and use it for the next step after dipping;

[0043] (3) After the dipping treatment is finished, the residual liquid is discarded, and the licorice residue...

Embodiment 2

[0049] A kind of method of the present invention utilizes isatidis dregs to prepare magnetic biochar, the specific method steps are as follows:

[0050] (1) Radix isatidis dregs were washed and dried, crushed to 40 mesh, and 500 mL of 10% sodium carbonate solution was added to 100 g of dregs powder, stirred thoroughly, ultrasonically treated for 10 min, and then soaked at room temperature for 6 h , after discarding the residual liquid, dry it for later use;

[0051] (2) 100 g of the dried Radix Radix Radix powder, according to the solid-to-liquid ratio of 1:5, fully mixed with 500 mL of ferric nitrate solution with a mass concentration of 20%, adjusted the pH to 10.5, and dipped at 25 ° C for 10 h, Stir fully during the dipping process, and use it for the next step after dipping;

[0052] (3) After the dipping treatment is finished, the residual liquid is discarded, and the dregs are dried to a moisture content of 10%;

[0053] (4) Place the above powder in the atmosphere fu...

Embodiment 3

[0058] A kind of method of the present invention utilizes traditional Chinese medicine dregs to prepare magnetic biochar, and concrete method step is as follows:

[0059] (1) Chinese medicine dregs (the dregs of traditional Chinese medicine here include most of the existing Chinese medicine dregs) after washing, drying, and pulverizing to 80 orders, adding 1000mL of mass concentration to 100g of the dregs powder is a 15% sodium carbonate solution, After fully stirring, ultrasonically treat for 15 minutes, then immerse at room temperature for 8 hours, discard the residual liquid, and dry for later use;

[0060] (2) 100g of dried traditional Chinese medicine dregs powder is fully mixed with 800mL of ferrous sulfate solution with a mass concentration of 25% according to the solid-to-liquid ratio of 1:8. Stir fully during the process, and use it for the next step after impregnation;

[0061] (3) After the dipping treatment is finished, the residual liquid is discarded, and the re...

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Abstract

The invention discloses a method for preparing magnetic biological carbon by utilizing traditional Chinese medicine residues, the magnetic biological carbon and application thereof and belongs to the field of biomass resource utilization. The method comprises the following steps: after impregnation pretreatment of the traditional Chinese medicine residues and sodium carbonate, performing ion salt impregnation and high-temperature anaerobic activation, washing, drying and the like to obtain the magnetic biological carbon. The method has the characteristics of being simple in production process, highly available in raw materials, high in product solid-liquid efficiency and the like. The method disclosed by the invention realizes the resource of the traditional Chinese medicine residues, has great significances in expanding the use of wastes extracted from the traditional Chinese medicines and expanding the source and the application scope of biological carbon adsorbents and can be widely applied to the water treatment field, thereby having good economic benefits and social benefits.

Description

technical field [0001] The invention belongs to the field of biomass resource utilization, and in particular relates to a method for preparing magnetic biochar by using traditional Chinese medicine residue, magnetic biochar and its application. Background technique [0002] my country is a big country in the production and use of traditional Chinese medicine, and a large amount of waste residue of traditional Chinese medicine is produced in the process of production of Chinese patent medicine, processing and processing of Chinese medicinal materials. According to reports, China discharges an average of 30 million tons of traditional Chinese medicine waste residue every year, which is the main solid waste of traditional Chinese medicine enterprises. Due to the high moisture content of traditional Chinese medicine residue, it is easy to rot and deteriorate, which will not only waste resources, but also pollute the environment. At present, the treatment methods of traditional ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/20B01J20/28B01J20/30C02F1/28C02F101/20C02F103/34
CPCB01J20/20B01J20/28009B01J2220/4875C02F1/283C02F2101/20C02F2103/343
Inventor 皮佳昌宗明珠商景阁何文泽孔祥蕊
Owner CHINA PHARM UNIV
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