Soil remediation agent and preparation method thereof

A soil remediation agent and mineral soil technology, applied in the field of soil remediation, can solve problems that are difficult to solve comprehensively and systematically, and achieve the effects of improving immunity and resistance to diseases and insect pests, promoting microbial reproduction, and increasing production

Pending Publication Date: 2022-02-18
炎黄先农(宁波)智慧科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Organic fertilizers, trace element fertilizers, enzyme fertilizers, microbial fertilizers and other technologies have solved soil quality problems to a certain extent, but it is difficult to solve the problems comprehensively and systematically

Method used

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  • Soil remediation agent and preparation method thereof
  • Soil remediation agent and preparation method thereof

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preparation example Construction

[0021] The invention provides a kind of preparation method of soil remediation agent, comprises the following steps:

[0022] 1) react after mixing coal ash, ore soil and acid solution to obtain slurry;

[0023] 2) After mixing the slurry, organic waste and microorganisms, they are stacked and fermented in sequence to obtain a soil remediation agent.

[0024] The mass ratio of coal ash and ore soil in step 1) of the present invention is preferably 1 to 2:2 to 4, more preferably 1:2; the ore soil is preferably an ore soil mixture composed of various ore soils, ore soil In the mixture, each ore soil is preferably mixed in an equal mass ratio; the acid solution is preferably a sulfuric acid solution or a nitric acid solution.

[0025] The sulfuric acid solution of the present invention is preferably an aqueous solution of concentrated sulfuric acid, and the mass concentration of the concentrated sulfuric acid is preferably 95-98%; in the aqueous solution of concentrated sulfuric...

Embodiment 1

[0044]The ore soil 4, ore soil 6 and coal ash in Table 1 are mixed according to the mass ratio of 1:1:1, and the obtained mixture is called mine coal ash. Mix 50L of concentrated sulfuric acid (mass concentration: 97%) and 550L of water to obtain a sulfuric acid solution, gradually add coal ash to the sulfuric acid solution at room temperature until the pH value reaches 5, stir for 5 hours to fully react, and obtain a slurry. Mix the slurry, corn stalks and microorganisms evenly to obtain a mixture. The slurry accounts for 30% of the mass of the mixture. The mass ratio of corn stalks and microorganisms is 5000:1. The soil remediation agent was obtained by natural fermentation at ℃ for 30 days (the temperature was raised to 65 ℃ during the fermentation process).

Embodiment 2

[0046] The ore soil 7, ore soil 8 and coal ash in Table 2 are mixed according to the mass ratio of 2:1:1, and the obtained mixture is called mine coal ash. Mix 49L of concentrated nitric acid (67% in mass concentration) with 500L of water to obtain a nitric acid solution, gradually add coal ash to the nitric acid solution at room temperature until the pH value reaches 6, stir for 4 hours to fully react, and obtain a slurry. Mix the slurry, corn stalks, pig manure, forest leaves and microorganisms evenly to obtain a mixture. The slurry accounts for 27% of the mass of the mixture, and the mass ratio of the total amount of corn stalks, pig manure and forest leaves to the microorganisms is 10000:1. The mixture was stacked with a height of 1.2m and a width of 2.5m, and then fermented naturally at 32°C (the temperature rose to 70°C during the fermentation process) for 35 days to obtain a soil remediation agent.

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Abstract

The invention belongs to the technical field of soil remediation. The invention provides a soil remediation agent and a preparation method thereof. The preparation method comprises the following steps: mixing coal ash, mineral soil and an acid solution and then reacting, and obtaining slurry; and mixing the slurry, organic wastes and microorganisms, and sequentially stacking and fermenting to obtain the soil remediation agent. The soil remediation agent disclosed by the invention contains rich organic matters, mineral elements and trace elements, also contains rich microbial flora, and is relatively high in nitrogen, phosphorus and potassium contents; thesoil remediation agent can effectively improve the contents of soil mineral elements and trace elements and the nitrogen-phosphorus-potassium fertilizer power, also can improve the content of soil organic matters, and promotes microbial reproduction. The soil remediation agent can be used for remarkably improving the crop yield, improving the taste of crops and improving the immunity and disease and pest resistance of the crops.

Description

technical field [0001] The invention relates to the technical field of soil restoration, in particular to a soil restoration agent and a preparation method thereof. Background technique [0002] The acyclic agricultural production method leads to the continuous loss of soil mineral elements, trace elements and organic matter, which will easily cause serious loss in the long run. This serious consequence has led to a continuous decline in crop yields, the appearance of dead fields, more and more unpalatable products, and more and more serious pests and diseases. Chemical fertilizer is the mainstream technology of agricultural production, mainly used to improve soil fertility. However, with the continuous improvement of soil fertility, soil mineral elements, trace elements and organic matter are constantly being lost, which accelerates the compaction of the soil, making soil fertility no longer a short board control factor for agricultural production. The continuous increase...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/80C09K17/40C09K101/00
CPCC05G3/80C05F3/00C09K17/40C09K2101/00C05F3/04C05F11/00C05F11/08C05F17/70C05G1/00
Inventor 李迎新郑冬冰王孝洪
Owner 炎黄先农(宁波)智慧科技有限公司
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