Preparation method of high-adsorption-performance biochar fertilizer
A biochar, high adsorption technology, applied in fertilization devices, fertilizer mixtures, applications, etc., can solve the problems of less microporous structure, small specific surface area, increased cost and labor, etc., to increase micropores, increase specific surface area, The effect of improving specific surface area and oxygen-containing group content
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Embodiment 1
[0035] A preparation method of biochar fertilizer with high adsorption performance, the steps are as follows:
[0036] (1) Selection and preparation of biomass raw materials: Sun-dried or dried corn stalks, crushed into powder, and mixed evenly, wherein the water content of corn stalks was controlled below 8%;
[0037] (2) Selection and preparation of human and animal manure: dry or dry human and animal manure, pulverize it into powder, and mix well. Among them, the water content of human and animal manure should be controlled below 16%;
[0038] (3) Weighing and mixing: Weigh and mix the corn stalks, human and animal manure and the catalyst after the treatment in steps (1) and (2) at a mass ratio of 3:2:1, wherein the catalyst is obtained after burning cypress After the plant ash was dissolved in water, the pH was adjusted to 8.2 with ammonia water, and then filtered with a 0.45 μm filter membrane, and the obtained substance was freeze-dried;
[0039](4) Impregnation treatme...
Embodiment 2
[0043] A preparation method of biochar fertilizer with high adsorption performance, the steps are as follows:
[0044] (1) Selection and preparation of biomass raw materials: Sun-dry or dry the wood chips, crush them into powder, and mix them evenly. Among them, the water content of the wood chips is controlled below 6%;
[0045] (2) Selection and preparation of human and animal manure: dry or dry human and animal manure, pulverize it into powder, and mix it evenly. Among them, the water content of human and animal manure should be controlled below 15%;
[0046] (3) Weighing and mixing: Weigh and mix the sawdust, human and animal manure and catalyst after steps (1) and (2) at a mass ratio of 3:2:1, where the catalyst is plant ash obtained after burning cypress After dissolving in water, adjust the pH to 8.2 with ammonia water, then filter, and use a 0.45 μm filter membrane to filter, and freeze-dry the obtained substance;
[0047] (4) Impregnation treatment: Weigh 100g of the...
Embodiment 3
[0051] A preparation method of biochar fertilizer with high adsorption performance, the steps are as follows:
[0052] (1) Selection and preparation of biomass raw materials: sun-dried or dried wheat straw, crushed into powder, and mixed evenly, wherein the water content of wheat straw was controlled below 9%;
[0053] (2) Selection and preparation of human and animal manure: dry or dry human and animal manure, pulverize it into powder, and mix well. Among them, the water content of human and animal manure should be controlled below 18%;
[0054] (3) Weighing and mixing: Weigh and mix the wheat straw, human and animal manure and the catalyst after the treatment in steps (1) and (2) at a mass ratio of 3:2:1, wherein the catalyst is obtained after burning cypress After the plant ash was dissolved in water, the pH was adjusted to 8.2 with ammonia water, and then filtered with a 0.45 μm filter membrane, and the obtained substance was freeze-dried;
[0055] (4) Impregnation treatm...
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