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Charcoal fertilizer capable of reducing heavy metal pollution

A biochar and heavy metal technology, applied in nitrogen fertilizers, organic fertilizers, fertilization devices, etc., can solve the problems of low specific surface area, less microporous structure, and less nutrient elements, and achieve large specific surface area, high adsorption performance, and increased organic matter content. Effect

Inactive Publication Date: 2017-01-04
刘建伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although biochar can be used as a fertilizer, it has less microporous structure, lower specific surface area, and retains less nutrients including trace elements, so it is generally necessary to add other fertilizers when using it

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A biochar fertilizer capable of alleviating heavy metal pollution is made from the following raw materials in parts by weight:

[0021] 60kg of biochar, 10kg of compound fertilizer, 10kg of fermentation broth, and 6kg of additives.

[0022] The biochar is obtained by mixing corn stalks, wheat straws and rice straws in a mass ratio of 2:2:1, drying in the sun until the moisture content is 20%, extruding granulation and carbonizing in a carbonization furnace. become.

[0023] The compound fertilizer is prepared by mixing potassium fertilizer, nitrogen fertilizer, urea, and calcium hydrogen phosphate according to a mass ratio of 1.5:1:1:1.

[0024] The fermented liquid is made from the following raw materials by weight: 80 kg of fresh enteromorpha, 20 kg of peat, 10 kg of rice bran, and 8 kg of banana peel powder; , rice bran, and banana peel powder, put into the fermentation tank and add water to adjust the water content to 42%, then inoculate the complex microbial agen...

Embodiment 2

[0031] A biochar fertilizer capable of alleviating heavy metal pollution is made from the following raw materials in parts by weight:

[0032] Biochar 70kg, compound fertilizer 11kg, fermentation broth 11kg, additives 8kg.

[0033] The biochar is obtained by mixing corn stalks, wheat straws and rice straws in a mass ratio of 2:2:1, drying in the sun until the moisture content is 22%, extruding granulation and carbonizing in a carbonization furnace. become.

[0034] The compound fertilizer is prepared by mixing potassium fertilizer, nitrogen fertilizer, urea, and calcium hydrogen phosphate according to a mass ratio of 1.5:1:1:1.

[0035] The fermented liquid is made from the following raw materials by weight: 90 kg of fresh enteromorpha, 25 kg of peat, 15 kg of rice bran, and 9 kg of banana peel powder; , rice bran, and banana peel powder are mixed, put into the fermentation tank and add water to adjust the water content to 43%, and then inoculate the complex microbial agent ...

Embodiment 3

[0042] A biochar fertilizer capable of alleviating heavy metal pollution is made from the following raw materials in parts by weight:

[0043] Biochar 80kg, compound fertilizer 12kg, fermentation broth 12kg, additives 10kg.

[0044] The biochar is obtained by mixing corn stalks, wheat straws and rice straws in a mass ratio of 2:2:1, drying in the sun until the moisture content reaches 25%, and then extruding and granulating and carbonizing in a carbonization furnace. become.

[0045] The compound fertilizer is prepared by mixing potassium fertilizer, nitrogen fertilizer, urea, and calcium hydrogen phosphate according to a mass ratio of 1.5:1:1:1.

[0046]The fermented liquid is made from the following raw materials in parts by weight: 100kg of fresh enteromorpha, 30kg of peat, 20kg of rice bran, and 10kg of banana peel powder; , rice bran, and banana peel powder, put into the fermentation tank and add water to adjust the water content to 44%, then inoculate the complex micro...

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Abstract

The invention discloses a charcoal fertilizer capable of reducing heavy metal pollution. The charcoal fertilizer is prepared from the following raw materials in parts by weight: 60-80 parts of charcoal, 10-12 parts of a composite fertilizer, 10-12 parts of fermentation broth and 6-10 parts of additives. The charcoal fertilizer disclosed by the invention adopts crop straw as a raw material component, and the raw material straw is low in cost and easy to obtain, is subjected to dehydration deoxygenation treatment, and is crushed into charcoal powder in a high-temperature carbonization mode, so that a good carbonization effect can be achieved, the carbon content is greater than 25%, the carbonization rate of the straw is effectively increased, the charcoal fertilizer is high in finished product rate and good in application effect, heavy metals in soil can be passivated, and the activity of microorganisms of the soil can be improved. In addition, the charcoal fertilizer is relatively large in specific surface area, and the content of organic matters in the soil can be increased; as a low-cost non-chemical fertilizer, the charcoal fertilizer disclosed by the invention is capable of ensuring the yield of organic agriculture and green agriculture, and is simple in preparation method, good in controllability and easy to apply.

Description

technical field [0001] The invention relates to the fields of high-value comprehensive utilization of biomass resources and environmental pollution control, in particular to a biochar fertilizer capable of reducing heavy metal pollution. Background technique [0002] No matter in the fields of food crops or commercial crops, fertilization has been used for a long time to improve crop yield and quality. From the earliest application of farm organic fertilizers to the application of inorganic fertilizers, and then to the application of organic-inorganic compound fertilizers. Fertilizer type, fertilization amount and ratio have a great impact on the yield and quality of food crops or economic crops. Although traditional fertilizers, especially organic-inorganic compound fertilizers, have played a good role in increasing crop yields. However, traditional fertilizers have an unreasonable ratio of ingredients and nutrients, which can hardly restore soil fertility, improve soil s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05G3/80
CPCC05C9/00C05G3/80C05F9/04C05G1/00
Inventor 刘建伟
Owner 刘建伟
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