Method for preparing magnetic biological carbon by utilizing traditional Chinese medicine residues, magnetic biological carbon and application thereof
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
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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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