Biochar fertilizer with soil heavy metal passivation and fertilizer efficiency functions

A biochar and heavy metal technology, applied in fertilizer mixtures, fertilization devices, applications, etc., can solve the problem of ignoring the role of the market, and achieve the effect of reducing nutrient loss, high nutrient, and high specific surface area

Inactive Publication Date: 2014-04-30
广东巴斯德环境科技有限公司
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Problems solved by technology

While researching the above patents, they ignored the role of the market: many farmers can and are willing to conduct soil heavy metal passivation treatment under the guidance of the government, but they are

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] Soy sauce factory leftover bean dregs with organic matter ≥ 40% and total nutrients ≥ 4% are dried in the sun until the water content is 30-40%, and then enter the carbonization furnace for carbonization after extrusion and granulation.

[0023] The carbonization of the carbonization furnace is set at about 500°C, and the carbonized carbon particles are to be processed in the next stage, but the next stage of work must be prepared before the temperature of the carbon particles is still at 100°C.

[0024] In order to produce 1000Kg of biochar fertilizer, 50Kg of urea, 50Kg of waste molasses, and 2Kg of Bacillus subtilis, which are crushed into 80 meshes, are mixed and stirred evenly, and the urea does not need to be completely melted.

[0025] When the carbon particles were still at 100°C, the mixture of the three evenly stirred was added to 898Kg of biochar particles and then stirred.

[0026] After the biochar granules, urea, waste molasses, and Bacillus subtilis are e...

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Abstract

The invention relates to a fertilizer technology, a soil improvement technology and an environmental protection technology which solve the problems that the general soil heavy metal passivation treatment agent is very short of a fertilizer nutrient effect and a biological bacterium effect. A biochar fertilizer is prepared by pelleting and charring residues of a food product plant, obtaining biological carbon granules, mixing probiotics, urea and waste molasses of a sugar refinery, adding to the biological carbon granules, and performing final stirring and mixing, wherein the final stirring and mixing process is performed when the temperature of the biological carbon granules is 50-150 DEG C. The biochar fertilizer with soil heavy metal passivation and fertilizer functions can be obtained by the preparation process.

Description

technical field [0001] The invention relates to fertilizer technology, soil improvement technology and environmental protection technology, in particular to prepare a biochar fertilizer that can not only passivate soil heavy metals, but also have fertilizer effect. Background technique [0002] The copper, lead, and zinc in the organic fertilizer made of chicken manure as the main material are obviously high, which is related to the fact that part of the feed protein comes from leather, and it is also related to the treatment of manure, such as disinfection with copper sulfate solution; The practice of making fertilizer from sludge often contains excessive levels of chromium, lead, and mercury. Under the condition of weak supervision, farmers will use this kind of fertilizer for farming and pollute the soil; the industrialization process implements pollution first and then treatment , heavy metal pollution has occurred in a large number of arable land, which is specifically ...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04C05G3/80
Inventor 梁敏锐刘付东曾凡强
Owner 广东巴斯德环境科技有限公司
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