CN111170801A

CN111170801A - Preparation process of bio-organic fertilizer

Info

Publication number: CN111170801A
Application number: CN202010083379.2A
Authority: CN
Inventors: 董锦铭; 熊又鸣
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-09
Filing date: 2020-02-09
Publication date: 2020-05-19

Abstract

A manufacturing process of a bio-organic fertilizer comprises the following steps: s1, taking 1000 parts of piggery fermentation bed padding, 1-4 parts of strain decomposing inoculant, 20-60 parts of fluffy material, 3-8 parts of glucose solution with the mass fraction of 10-30%, 1-4 parts of aspergillus oryzae and 30-80 parts of quick lime; all are parts by weight; s2, spreading the uniformly stirred mixture of the padding, the strains and the fluffy materials on the surface of the quicklime layer, wherein the fluffy materials are kept during stacking, and the top of the materials is raised. S3, after stirring and turning the pile, isolating the pile from the outside air, introducing a certain amount of air every day, introducing 1.5-3 liters of air into each kilogram of pile mass, and stirring and turning for 5-8 days after the pile is turned for the third time; spreading the pile, and air drying; and (5) airing until the mass fraction of free water is reduced to below 20%, and finishing the preparation of the organic fertilizer. By adopting the preparation process of the bio-organic fertilizer, the compost temperature can be rapidly raised, aspergillus oryzae strains are rapidly propagated in large quantities under the action of high temperature and glucose, the decomposition efficiency of lignin in the aspergillus oryzae is improved, and the growth of other harmful bacteria is inhibited by the propagation of beneficial strains in large quantities.

Description

Preparation process of bio-organic fertilizer

Technical Field

The invention belongs to the technical field of chemical industry, relates to a bio-organic fertilizer technology, and particularly relates to a manufacturing process of a bio-organic fertilizer.

Background

The ecological fermentation bed culture technology is an ecological culture mode which comprehensively utilizes the principles of microbiology, ecology and fermentation engineering and takes active functional microorganism bacteria as substance energy 'conversion center'. The core of the technology lies in that the animal excrement and urine waste is converted into useful substances and energy continuously and stably by utilizing the microbial composite flora with strong activity and beneficial functions, and the aim of completely degrading excrement and urine of animals such as pigs without pollution and zero emission is fulfilled at the same time, so that the technology is a latest environment-friendly cultivation mode in the world at present, and the product has good economic, social and ecological benefits when being used for raising pigs.

The ecological fermentation bed culture can rapidly convert culture wastes such as the animal manure and the urine through the synergistic fermentation effect of the padding and the animal manure, eliminate the odor, inhibit pests and germs, and simultaneously, the beneficial microbial flora can synthesize the padding and the manure into nutrient substances such as sugars, proteins, organic acids, vitamins and the like which can be eaten by the livestock, thereby enhancing the disease resistance of the livestock and promoting the healthy growth of the livestock. The fermentation bed is generally prepared by diluting and spraying padding (sawmilling, rice hull, straw, etc.), strains and water uniformly, and then laying livestock, for example, a fermentation bed disclosed in chinese patent 2008101371696 is formed by taking straw as a raw material and inoculating various strains.

When the fermentation bed is used for more than 3 years, because padding required by strain propagation is obviously consumed, the strain can not effectively decompose excrement of the cultured livestock, the quantity of the strain can not be maintained, the capability of treating excrement is obviously reduced, harmful bacteria are gradually increased, and the fermentation bed can not be used any more.

Disclosure of Invention

The invention discloses a process for preparing a bio-organic fertilizer, which aims to overcome the technical defects in the prior art and further utilize a waste fermentation bed.

The preparation process of the bio-organic fertilizer comprises the following steps:

s1, taking 1000 parts of piggery fermentation bed padding, 1-4 parts of strain decomposing inoculant, 20-60 parts of fluffy material, 3-8 parts of glucose solution with the mass fraction of 10-30%, 1-4 parts of aspergillus oryzae and 30-80 parts of quick lime; all are parts by weight;

s2, uniformly stirring the padding, the strains, the fluffy material, the glucose solution and the aspergillus oryzae, and keeping the water content at about 55-65%; spreading quicklime on the surface of a fermentation platform, spreading the uniformly stirred mixture of the padding, the strains and the fluffy materials on the surface of the quicklime layer, and keeping the materials fluffy and enabling the top of the materials to be raised during stacking.

S3 .

S31 when the temperature in the pile reaches or is higher than 40 ℃; stirring and turning over again;

s32 when the temperature in the pile reaches or is higher than 50 ℃; stirring and turning over again;

s33 when the temperature in the pile reaches or is higher than 60 ℃; stirring and turning over again;

after the third stirring and turning is finished, isolating the pile from the outside air, introducing quantitative air every day, introducing 1.5-3 liters of air into each kilogram of the pile, and stirring and turning for 5-8 days after the third stirring and turning; spreading the pile, and air drying; and (5) airing until the mass fraction of free water is reduced to below 20%, and taking the mixture part above the quick lime to obtain the bio-organic fertilizer.

Specifically, the fluffy material is fine rice bran shells or sawdust.

Specifically, 5-6 parts of 15-20% of glucose solution are taken.

Specifically, the content of bacillus subtilis in the strain decomposing inoculant is 10-200, the content of bacillus coagulans is 50-500, and the unit is million CFU/g.

Specifically, the interval between the steps S31 and S32 is 2-5 days.

Specifically, the interval between the steps S32 and S33 is 3-6 days.

By adopting the preparation process of the bio-organic fertilizer, the compost temperature can be rapidly raised, aspergillus oryzae strains are rapidly propagated in large quantities under the action of high temperature and glucose, the decomposition efficiency of lignin in the aspergillus oryzae is improved, and the growth of other harmful bacteria is inhibited by the propagation of beneficial strains in large quantities.

Detailed Description

The following provides a more detailed description of the present invention.

Detailed description of the preferred embodiment 1

s1, taking 1000 parts of pigsty fermentation bed padding, 2 parts of strain decomposition agent, 30 parts of fine rice bran, 5 parts of 30% glucose solution by mass fraction, 4 parts of aspergillus oryzae and 60 parts of quicklime; all are parts by weight;

s2, uniformly stirring the padding, the strains, the fluffy material, the glucose solution and the aspergillus oryzae, and keeping the water content at about 55-65%;

according to experience, after the mixture is uniformly stirred, the mixture is kneaded into a ball by hand and does not produce water, and the ball is loosened by hand, so that the water content is generally in an interval range. HM strains are various commercially available biological organic fertilizer inoculants.

Spreading quicklime on the surface of a fermentation platform, spreading the uniformly stirred mixture of the padding, the strains and the fluffy materials on the surface of the quicklime layer, and keeping the materials fluffy and enabling the top of the materials to be raised during stacking.

The quicklime is paved at the bottom of the mixture, the heating speed of the fertilizer retting can be increased by heating the quicklime, the time for the first step to reach 40 ℃ is shortened by 0.5-1 day, and the step S31 can be carried out after 2 days;

the glucose solution is beneficial to the propagation of aspergillus oryzae and beneficial strains such as bacillus, the microbial activity of the strains is exerted, the propagation of the aspergillus oryzae has strong decomposition effect on cellulose decomposition lignin in the fermentation bed padding, the lignin degradation rate is improved, the degraded products are further used for the propagation of the beneficial strains, and the composting speed is accelerated.

s32.2 days later, when the temperature in the reactor reaches or is higher than 50 ℃; stirring and turning over again;

s33.3 days later, when the temperature in the reactor reaches or is higher than 60 ℃; stirring and turning over again;

after the third stirring and turning is finished, the pile is isolated from the outside air, a certain amount of air is introduced every day, about 2 liters of air is introduced into every kilogram of the pile, the introduction of the certain amount of air is mainly used for introducing oxygen to provide certain oxygen for the aerobic reaction process, particularly for the aerobic reaction of aspergillus oryzae on lignin decomposition, but excessive oxygen is easy to cause the propagation of other aerobic harmful bacteria such as escherichia coli.

Stirring and turning for 7 days after the third time; spreading the pile, and air drying; and (5) airing until the mass fraction of free water is reduced to below 20%, and finishing the preparation of the organic fertilizer.

In the detection of the product obtained in the whole process of the embodiment for 14 days, the lignin degradation rate is 88%, the mass fraction of organic matters (calculated on a dry basis) is 66%, the total nitrogen fraction is 2.2%, the total phosphorus fraction is 3.0%, and the total potassium fraction is 3.8%.

Specific example 2

s1, taking 1000 parts of pigsty fermentation bed padding, 2 parts of strain decomposition agent, 30 parts of fine rice bran, 5 parts of glucose solution with the mass fraction of 15%, 4 parts of aspergillus oryzae and 60 parts of quicklime; all are parts by weight;

according to experience, after the mixture is uniformly stirred, the mixture is kneaded into a ball by hand and does not produce water, and the ball is loosened by hand, so that the water content is generally in an interval range.

the content of bacillus subtilis in the strain decomposing inoculant is 10-200, the content of bacillus coagulans is 50-500, and the unit is million CFU/g.

s32.3 days later, when the temperature in the reactor reaches or is higher than 50 ℃; stirring and turning over again;

s33.4 days later, when the temperature in the reactor reaches or is higher than 60 ℃; stirring and turning over again;

after the third stirring and turning is finished, the pile is isolated from the outside air, a certain amount of air is introduced every day, about 2.5 liters of air is introduced into each kilogram of the pile, and the introduction of the certain amount of air is mainly used for providing a certain amount of oxygen for the aerobic reaction process, particularly for the aerobic reaction of aspergillus oryzae on lignin decomposition, but excessive oxygen can easily cause the propagation of other aerobic harmful bacteria such as escherichia coli.

Stirring and turning for 8 days after the third time; spreading the pile, and air drying; and (5) airing until the mass fraction of free water is reduced to below 20%, and finishing the preparation of the organic fertilizer.

The manufacturing process of the organic fertilizer is characterized in that the interval between the steps S31 and S32 is 2-5 days.

In the detection of the product obtained in the whole process of the embodiment for 18 days, the lignin degradation rate is 91%, the mass fraction of organic matters (calculated on a dry basis) is 69%, the total nitrogen fraction is 2.5%, the total phosphorus fraction is 3.2%, and the total potassium fraction is 3.6%.

The foregoing is a description of preferred embodiments of the present invention, and the preferred embodiments in each of the preferred embodiments can be combined and combined in any overlapping manner if not obviously contradictory or prerequisite to a certain preferred embodiment, and the specific parameters in the examples and the embodiments are only used for clearly illustrating the invention verification process of the inventor and are not used for limiting the patent protection scope of the present invention, which is still subject to the claims and the equivalent changes made by the content of the description of the present invention shall be included in the protection scope of the present invention.

Claims

1. A manufacturing process of a bio-organic fertilizer is characterized by comprising the following steps:

s2, uniformly stirring the padding, the strains, the fluffy material, the glucose solution and the aspergillus oryzae, and keeping the water content at about 55-65%; spreading quicklime on the surface of a fermentation platform, spreading a uniformly stirred mixture of padding, strains and fluffy materials on the surface of the quicklime layer, and keeping the materials fluffy during stacking, wherein the top of the materials is raised;

S3 .

2. The process for preparing a bio-organic fertilizer according to claim 1, wherein the fluffy material is fine rice bran shells or sawdust.

3. The process for preparing the bio-organic fertilizer as claimed in claim 1, wherein the glucose solution is 15-20% by weight, and 5-6 parts by weight are taken.

4. The process for preparing a bio-organic fertilizer according to claim 1, wherein the content of bacillus subtilis in the strain decomposing inoculant is 10-200, the content of bacillus coagulans is 50-500, and the unit is million CFU/g.

5. The process for preparing bio-organic fertilizer according to claim 1, wherein the interval between the steps S31 and S32 is 2-5 days.

6. The process for preparing bio-organic fertilizer according to claim 1, wherein the interval between the steps S32 and S33 is 3-6 days.