CN111205121A - Microbial treatment method for slaughter house sludge and excrement - Google Patents
Microbial treatment method for slaughter house sludge and excrement Download PDFInfo
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- CN111205121A CN111205121A CN202010032738.1A CN202010032738A CN111205121A CN 111205121 A CN111205121 A CN 111205121A CN 202010032738 A CN202010032738 A CN 202010032738A CN 111205121 A CN111205121 A CN 111205121A
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- C05—FERTILISERS; MANUFACTURE THEREOF
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Abstract
The invention discloses a microbial treatment method for slaughter house sludge and excrement, which comprises the following steps: (1) uniformly mixing 30-40 parts of slaughterhouse sludge, 30-40 parts of animal wastes, 10-20 parts of plant ash, 5-10 parts of beet pulp, 10-15 parts of bran, 20-30 parts of straw particle powder and 3-5 parts of compound bacterial liquid according to the following weight parts to obtain a mixture to be fermented; (2) composting the mixture to be fermented, covering a layer of the organic fertilizer prepared by the invention with the thickness of 2-3cm on the surface of the compost, and naturally fermenting for 10-15 days; then drying and crushing to obtain the organic fertilizer. The microbial treatment method for the slaughterhouse sludge and the excrement has the advantages of no generation of odor gas, high fermentation efficiency, capability of fully decomposing organic matters, large fat chains and protein chains in the sludge, improvement of fertility and fermentation to obtain the organic fertilizer, wherein the content of organic carbon nutrients is more than 3.5%.
Description
The technical field is as follows:
the invention relates to a method for treating slaughter house sludge and excrement, in particular to a method for treating slaughter house sludge and excrement by microorganisms.
Background art:
in recent years, with the rapid development of agriculture and livestock husbandry in China, a plurality of breeding and slaughtering enterprises emerge, and a large amount of biological excrement and organic wastewater are generated in the breeding and slaughtering process. Organic waste water produces a large amount of organic solid in the process of environmental protection purification treatment, which is called organic sludge. The organic sludge produced in the culture and slaughtering processes has the characteristics of high protein content, difficult dehydration, high oiliness, viscosity and the like, and has higher treatment difficulty. And if the treatment cannot be carried out in time, the odor is generated in a short time, which causes adverse effects on the surrounding environment.
At present, the common treatment mode of the organic sludge is composting, namely mixing the organic sludge and straw powder according to a certain proportion, and stacking the organic sludge and the straw powder into a strip stack for fermentation by adding aerobic microbial agents. This type of treatment is relatively efficient, but has certain disadvantages, such as: the raw materials have foul smell at the beginning of fermentation treatment, which affects the health of workers and influences the surrounding environment; and the complete decomposition of large fatty chains and protein chains in the sludge cannot be realized in the composting process, so the fertility is limited and the utilization rate is not high.
The invention content is as follows:
in order to overcome the defects, the invention aims to provide a microbial treatment method for slaughterhouse sludge and excrement, which has the advantages of high fermentation efficiency, no generation of odor in the treatment process and high fertility of the obtained organic fertilizer.
The purpose of the invention is implemented by the following technical scheme: a microbiological treatment method for slaughterhouse sludge and excrement comprises the following steps:
(1) uniformly mixing 30-40 parts of slaughterhouse sludge, 30-40 parts of animal wastes, 10-20 parts of plant ash, 5-10 parts of beet pulp, 10-15 parts of bran, 20-30 parts of straw particle powder and 3-5 parts of compound bacterial liquid according to the following weight parts to obtain a mixture to be fermented; the plant ash, the beet pulp, the bran and the straw particle powder are uniformly distributed in the slaughterhouse sludge and the animal manure, so that the looseness of the mixture to be fermented is increased, the oxygen content of the mixture to be fermented is improved, the aerobic fermentation process can be smoothly carried out, the fermentation efficiency is improved, and meanwhile, the odor released in part of the fermentation process can be absorbed.
(2) Composting the mixture to be fermented, covering a layer of the organic fertilizer prepared by the invention with the thickness of 2-3cm on the surface of the compost, and naturally fermenting for 10-15 days; then drying and crushing to obtain the organic fertilizer. The organic fertilizer prepared by the invention is loose and porous, and can not influence the air permeability of the internal fermentation substances when being covered on the surface of the compost, thereby ensuring the realization of aerobic fermentation, and can absorb the odor released in the fermentation process of the compost, thereby avoiding the pollution to the environment, and simultaneously, the sulfur and nitrogen compounds in the odor are retained in the fertilizer and are utilized as the fertilizer.
Further, the compound bacterial liquid comprises the following components in parts by volume: 2-3 parts of bacillus subtilis liquid, 5-7 parts of bacillus mucilaginosus liquid, 2-3 parts of azotobacter chroococcum liquid, 10-12 parts of saccharomycete liquid and 3-5 parts of bacillus licheniformis liquid. By selecting proper fermentation strains and setting reasonable proportion, organic matters, large fatty chains and protein chains in the sludge are fully decomposed in a short time, and the fertility is improved.
Further, the concentrations of the bacillus subtilis liquid, the bacillus mucilaginosus liquid, the azotobacter chroococcum liquid, the saccharomycete liquid and the bacillus licheniformis liquid are all more than 9 hundred million cfu/ml.
Further, the particle size of the straw particle powder is 3-5 mm.
Further, the water content of the mixture to be fermented is 50-60% by weight.
The invention has the advantages that:
1. the plant ash, the beet pulp, the bran and the straw particle powder are uniformly distributed in the slaughterhouse sludge and the animal manure, so that the looseness of the mixture to be fermented is increased, the oxygen content of the mixture to be fermented is improved, the aerobic fermentation process is favorably and smoothly carried out, the fermentation efficiency is improved, and meanwhile, part of odor released in the fermentation process can be absorbed;
2. the organic fertilizer prepared by the invention is loose and porous, and the air permeability of the internal fermentation materials can not be influenced when the organic fertilizer is covered on the surface of compost, so that the aerobic fermentation is ensured, on the other hand, the odor released in the fermentation process of the compost can be absorbed, the environment pollution is avoided, and meanwhile, sulfur and nitrogen compounds in the odor are reserved in the fertilizer and are utilized as the fertilizer;
3. by selecting proper fermentation strains and setting reasonable proportion, organic matters, large fatty chains and protein chains in the sludge are fully decomposed in a short time, and the fertility is improved. Fermenting to obtain the organic fertilizer, wherein the content of organic carbon nutrients is more than 3.5 percent.
4. The method of the invention not only efficiently, safely and inexpensively treats the organic sludge generated in the culture and slaughter processes, but also converts the organic sludge and the biological excrement into the biological organic fertilizer, changes waste into valuable, reduces the cost of culture and slaughter enterprises, and increases the economic benefit of the enterprises.
The specific implementation mode is as follows:
example 1: a microbiological treatment method for slaughterhouse sludge and excrement comprises the following steps:
(1) uniformly mixing 30 parts of slaughterhouse sludge, 40 parts of animal wastes, 10 parts of plant ash, 5 parts of beet pulp, 10 parts of bran, 30 parts of straw particle powder with the particle size of 3-5mm and 3 parts of composite bacterial liquid according to the following weight parts to obtain a mixture to be fermented, wherein the water content of the mixture is 50-60 percent; the composite bacterial liquid comprises the following components in parts by volume: 2 parts of bacillus subtilis liquid, 7 parts of bacillus mucilaginosus liquid, 3 parts of azotobacter chroococcum liquid, 10 parts of saccharomycete liquid and 3 parts of bacillus licheniformis liquid. The concentrations of the bacillus subtilis liquid, the bacillus mucilaginosus liquid, the azotobacter chroococcum liquid, the saccharomycete liquid and the bacillus licheniformis liquid are all more than 9 hundred million cfu/ml.
(2) Composting the mixture to be fermented, covering a layer of the organic fertilizer prepared by the invention with the thickness of 2cm on the surface of the compost, and naturally fermenting for 10 days; then drying and crushing to obtain the organic fertilizer. The organic fertilizer is obtained by detection and fermentation, the content of organic carbon nutrients is 3.8%, no odor gas is released into the air in the whole fermentation process, the wet organic fertilizer has the faint scent of soil after the fermentation is finished, the number of faecal coliform bacteria is less than or equal to 50/g, and the death rate of ascarid eggs is more than or equal to 98%.
Example 2: a microbiological treatment method for slaughterhouse sludge and excrement comprises the following steps:
(1) uniformly mixing 40 parts of slaughterhouse sludge, 30 parts of animal wastes, 20 parts of plant ash, 10 parts of beet pulp, 15 parts of bran, 20 parts of straw particle powder with the particle size of 3-5mm and 5 parts of composite bacterial liquid according to the following weight parts to obtain a mixture to be fermented, wherein the water content of the mixture is 50-60 percent; the composite bacterial liquid comprises the following components in parts by volume: 3 parts of bacillus subtilis liquid, 5 parts of bacillus mucilaginosus liquid, 2 parts of azotobacter chroococcum liquid, 12 parts of saccharomycete liquid and 5 parts of bacillus licheniformis liquid. The concentrations of the bacillus subtilis liquid, the bacillus mucilaginosus liquid, the azotobacter chroococcum liquid, the saccharomycete liquid and the bacillus licheniformis liquid are all more than 9 hundred million cfu/ml.
(2) Composting the mixture to be fermented, covering a layer of organic fertilizer with the thickness of 3cm on the surface of the compost, and naturally fermenting for 15 days; then drying and crushing to obtain the organic fertilizer. The organic fertilizer is obtained by detection and fermentation, the content of organic carbon nutrients is 4.1%, no odor gas is released into the air in the whole fermentation process, the wet organic fertilizer has the faint scent of soil after the fermentation is finished, the number of faecal coliform bacteria is less than or equal to 50/g, and the death rate of ascarid eggs is more than or equal to 98%.
Example 3: a microbiological treatment method for slaughterhouse sludge and excrement comprises the following steps:
(1) uniformly mixing 35 parts of slaughterhouse sludge, 35 parts of animal wastes, 15 parts of plant ash, 7 parts of beet pulp, 12 parts of bran, 25 parts of straw particle powder with the particle size of 3-5mm and 4 parts of composite bacterial liquid according to the following weight parts to obtain a mixture to be fermented, wherein the water content of the mixture is 50-60 percent; the composite bacterial liquid comprises the following components in parts by volume: 2 parts of bacillus subtilis liquid, 6 parts of bacillus mucilaginosus liquid, 3 parts of azotobacter chroococcum liquid, 11 parts of saccharomycete liquid and 4 parts of bacillus licheniformis liquid. The concentrations of the bacillus subtilis liquid, the bacillus mucilaginosus liquid, the azotobacter chroococcum liquid, the saccharomycete liquid and the bacillus licheniformis liquid are all more than 9 hundred million cfu/ml.
(2) Composting the mixture to be fermented, covering a layer of the organic fertilizer prepared by the invention with the thickness of 2-3cm on the surface of the compost, and naturally fermenting for 12 days; then drying and crushing to obtain the organic fertilizer. The organic fertilizer is obtained by detection and fermentation, the content of organic carbon nutrients is 3.7%, no odor is emitted into the air in the whole fermentation process, the wet organic fertilizer has the faint scent of soil after the fermentation is finished, the number of faecal coliform bacteria is less than or equal to 50/g, and the death rate of ascaris ova is more than or equal to 98%.
Comparative example 1: a microbiological treatment method for slaughterhouse sludge and excrement comprises the following steps: the organic fertilizer prepared by the invention is not covered on the surface of the compost in the step (2), and the rest steps and parameters are completely the same as those in the example 1. Slight odor was emitted into the air 3 days before fermentation, and the odor disappeared several days later. The organic fertilizer is obtained by detection and fermentation, the content of organic carbon nutrients is 3.7%, no odor gas is released into the air in the whole fermentation process, the wet organic fertilizer has the faint scent of soil after the fermentation is finished, the number of faecal coliform bacteria is less than or equal to 50/g, and the death rate of ascarid eggs is more than or equal to 98%.
Comparative example 2: a microbiological treatment method for slaughterhouse sludge and excrement comprises the following steps: in the step (1), the composite bacterial liquid comprises the following components in parts by volume: 2 parts of bacillus subtilis liquid, 2 parts of bacillus mucilaginosus liquid, 2 parts of azotobacter chroococcum liquid, 2 parts of saccharomycete liquid and 2 parts of bacillus licheniformis liquid. The concentrations of the bacillus subtilis liquid, the bacillus mucilaginosus liquid, the azotobacter chroococcum liquid, the saccharomycete liquid and the bacillus licheniformis liquid are all more than 9 hundred million cfu/ml. The rest of the steps and parameters were exactly the same as in example 1.
The organic fertilizer is obtained by detection and fermentation, the content of organic carbon nutrients is 1.2%, no odor gas is released into the air in the whole fermentation process, the looseness of the wet organic fertilizer is poor after the fermentation is finished, the number of faecal coliform groups is about 200/g, and the death rate of ascarid eggs is less than 70%. The fermentation efficiency of comparative example 2 is significantly lower than that of example 1.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. A microbiological treatment method for slaughter house sludge and excrement is characterized by comprising the following steps:
(1) uniformly mixing 30-40 parts of slaughterhouse sludge, 30-40 parts of animal wastes, 10-20 parts of plant ash, 5-10 parts of beet pulp, 10-15 parts of bran, 20-30 parts of straw particle powder and 3-5 parts of compound bacterial liquid according to the following weight parts to obtain a mixture to be fermented;
(2) composting the mixture to be fermented, covering a layer of the organic fertilizer prepared by the invention with the thickness of 2-3cm on the surface of the compost, and naturally fermenting for 10-15 days; then drying and crushing to obtain the organic fertilizer.
2. The microbial treatment method for the slaughter house sludge and the excrement according to claim 1, wherein the compound bacteria liquid comprises the following components in parts by volume: 2-3 parts of bacillus subtilis liquid, 5-7 parts of bacillus mucilaginosus liquid, 2-3 parts of azotobacter chroococcum liquid, 10-12 parts of saccharomycete liquid and 3-5 parts of bacillus licheniformis liquid.
3. The microbial treatment method for slaughter house sludge and feces according to claim 2, wherein the concentrations of the bacillus subtilis liquid, the bacillus mucilaginosus liquid, the azotobacter chroococcum liquid, the saccharomycete liquid and the bacillus licheniformis liquid are all more than 9 hundred million cfu/ml.
4. The microbial treatment method for slaughter house sludge and feces according to claim 1, wherein the particle size of the straw particle powder is 3-5 mm.
5. The microbial treatment method of slaughter house sludge and manure according to claim 1, wherein the water content of the mixture to be fermented is 50-60% by weight.
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| CN202010032738.1A CN111205121A (en) | 2020-01-13 | 2020-01-13 | Microbial treatment method for slaughter house sludge and excrement |
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| CN202010032738.1A CN111205121A (en) | 2020-01-13 | 2020-01-13 | Microbial treatment method for slaughter house sludge and excrement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115010549A (en) * | 2021-12-13 | 2022-09-06 | 九江学院 | Reduction of acid red soil N 2 O-discharged biomass charcoal material and preparation and use methods thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115010549A (en) * | 2021-12-13 | 2022-09-06 | 九江学院 | Reduction of acid red soil N 2 O-discharged biomass charcoal material and preparation and use methods thereof |
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Application publication date: 20200529 |