Humic fertilizer and preparation method thereof

A humic acid and fertilizer technology, applied in the field of organic fertilizer preparation, organic fertilizer and humic acid fertilizer, can solve problems such as restricting the obtaining efficiency of humic acid, no continuous preparation method, etc. The preparation method has a short process and the effect of improving the preparation efficiency

Inactive Publication Date: 2016-05-04
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The current method of artificially preparing humic acid by biological fermentation mostly improves the production efficiency by breeding excellent microorganisms, improving the growth environment of microorganisms, adjusting the pH value of the substrate, and adjusting the temperature, etc., but mostly ignores the process of microbial fermentation. Degradation of macromolecular substances in the matrix by microorganisms is an important reason that seriously affects the rate of humic acid production. Simply using microbial fermentation, the process of obtaining humic acid can range from 5 to 6 days to several months, thus restricting the production rate of humic acid. Acquisition efficiency of phytic acid
[0005] At the same time, according to the characteristics of the currently used biological fermentation method, that is, it needs to be placed at a certain temperature for a long time, so the preparation process is usually carried out in batches, and after one batch is completed, another batch is carried out, and there is no continuous preparation. Methods

Method used

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  • Humic fertilizer and preparation method thereof
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1) Raw material crushing

[0029] Put the mixture of rice straw and apple core and coal gangue into the three-stage screw extruder (hereinafter referred to as the screw extruder) according to the mass ratio of 8:1, and crush it by the first stage screw 21 , get base material;

[0030] 2) Mild enzymatic hydrolysis

[0031] The base material enters the second section screw rod 22 from the first section screw rod 21, and the screw extruder is heated by water to make the internal temperature corresponding to the second section screw rod 22, and water and acetic acid are added thereto to adjust the base material The pH value is 6.0, the water content is 40%, and then add laccase, exo-β-glucanase, endo-β-glucanase and β-glucoside with a total mass of about 10% of the raw material mass Enzymes, adjust the rotating speed of the second stage screw 22, so that the base material runs from the rear of the second stage screw 22 to the front of the second stage screw 22, and the ba...

Embodiment 2

[0038] 1) Raw material crushing

[0039] Putting the mixed mixture of rice straw and fallen leaves and coal gangue into the screw extruder according to the mass ratio of 9:1, and crushing it by the first screw 21 to obtain the base material;

[0040] 2) Mild enzymatic hydrolysis

[0041]The base material enters the second section screw rod 22 from the first section screw rod 21, and the screw extruder is heated by water to make the internal temperature corresponding to the second section screw rod 22, and water and acetic acid are added thereto to adjust the base material The pH value is 6.0, the water content is 30%, and then add laccase, exo-β-glucanase, endo-β-glucanase and β-glucoside with a total mass of about 10% of the raw material mass Enzyme, wherein laccase quality accounts for 60% of these several kinds of enzyme total mass, regulates the rotating speed of second section screw 22, makes base material run to the front of second section screw 22 from second section s...

Embodiment 3

[0047] 1) Raw material crushing

[0048] Put the mixed mixture of fruit stones and bamboo branches and coal gangue into the screw extruder according to the mass ratio of 10:1, and crush it by the first screw 21 to obtain the base material;

[0049] 2) Mild enzymatic hydrolysis

[0050] The base material enters the second section screw rod 22 from the first section screw rod 21, and the screw extruder is heated by water to make the internal temperature corresponding to the second section screw rod 22, and water and acetic acid are added thereto to adjust the base material The pH value is 6.0, the water content is 50%, and then add laccase, exo-β-glucanase, endo-β-glucanase and β-glucoside with a total mass of about 10% of the raw material mass Enzyme, wherein laccase quality accounts for 20% of these several kinds of enzyme total mass, regulates the rotating speed of second stage screw 22, makes base material move to second section screw rod 22 front from the second section sc...

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Abstract

The invention discloses a humic fertilizer and a preparation method thereof, relates to the field of organic fertilizers, in particular to the field of humic fertilizers, and also relates to the preparation field of humic fertilizers at the same time. According to the preparation method disclosed by the invention, by virtue of a three-stage screw extruder, plant wastes together with coal gangues are subjected to crushing, mild enzymatic hydrolysis, and microbial fermentation to realize fast, efficient and continuous preparation of the humic fertilizer, the used equipment is simple, and the used raw materials are clean and environment-friendly, so that the humic fertilizer has a good economic prospect.

Description

technical field [0001] The invention relates to the field of organic fertilizers, in particular to the field of humic acid fertilizers, and also to the field of preparation of organic fertilizers. Background technique [0002] Humic acid, also known as "humic acid", is the main component of humic substances, which is a mixture of various organic acids with different molecular weights and different types. Humic acid plays an important role in agriculture, forestry, industry, environmental protection, aquaculture, and even medicine. When used in agriculture and forestry, humic acid fertilizer, as a kind of organic fertilizer, can improve soil, Synergizing chemical fertilizers, enhancing plant stress resistance, reducing soil heavy metal pollution, and using humic acid fertilizers are important directions for sustainable agricultural development. [0003] Humic acid is mainly divided into natural humic acid and artificial humic acid. Natural humic acid includes soil humic acid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F11/02
CPCC05F11/02
Inventor 陈庆曾军堂叶任海陈兵
Owner CHENDU NEW KELI CHEM SCI CO LTD
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