CN112299897A - Harmless treatment of livestock and poultry manure and organic fertilizer generation method - Google Patents
Harmless treatment of livestock and poultry manure and organic fertilizer generation method Download PDFInfo
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- CN112299897A CN112299897A CN202011121866.XA CN202011121866A CN112299897A CN 112299897 A CN112299897 A CN 112299897A CN 202011121866 A CN202011121866 A CN 202011121866A CN 112299897 A CN112299897 A CN 112299897A
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- 239000010871 livestock manure Substances 0.000 title claims abstract description 68
- 210000003608 fece Anatomy 0.000 title claims abstract description 65
- 244000144972 livestock Species 0.000 title claims abstract description 51
- 244000144977 poultry Species 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000003895 organic fertilizer Substances 0.000 title claims abstract description 30
- 238000003860 storage Methods 0.000 claims abstract description 48
- 239000002361 compost Substances 0.000 claims abstract description 29
- 238000000855 fermentation Methods 0.000 claims abstract description 26
- 230000004151 fermentation Effects 0.000 claims abstract description 21
- 239000010902 straw Substances 0.000 claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 241001465754 Metazoa Species 0.000 claims abstract description 7
- 230000000903 blocking effect Effects 0.000 claims abstract description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 28
- 239000010802 sludge Substances 0.000 claims description 25
- 238000009423 ventilation Methods 0.000 claims description 25
- 239000010865 sewage Substances 0.000 claims description 20
- 238000001556 precipitation Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 210000002700 urine Anatomy 0.000 claims description 11
- 241000282414 Homo sapiens Species 0.000 claims description 10
- 230000029087 digestion Effects 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 10
- 241000237858 Gastropoda Species 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 244000052616 bacterial pathogen Species 0.000 claims description 5
- 230000001413 cellular effect Effects 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 5
- 241001233061 earthworms Species 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 241000894006 Bacteria Species 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 238000009264 composting Methods 0.000 claims description 2
- 235000013601 eggs Nutrition 0.000 claims description 2
- 239000011343 solid material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000009792 diffusion process Methods 0.000 abstract description 2
- 238000009360 aquaculture Methods 0.000 abstract 1
- 244000144974 aquaculture Species 0.000 abstract 1
- 239000002689 soil Substances 0.000 description 13
- 239000003337 fertilizer Substances 0.000 description 8
- 238000009395 breeding Methods 0.000 description 5
- 230000001488 breeding effect Effects 0.000 description 5
- 238000000354 decomposition reaction Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 4
- 238000003900 soil pollution Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 102000002322 Egg Proteins Human genes 0.000 description 3
- 108010000912 Egg Proteins Proteins 0.000 description 3
- 239000002068 microbial inoculum Substances 0.000 description 3
- 210000004681 ovum Anatomy 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 102000004190 Enzymes Human genes 0.000 description 2
- 108090000790 Enzymes Proteins 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910052785 arsenic Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000003864 humus Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F3/00—Fertilisers from human or animal excrements, e.g. manure
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/05—Treatments involving invertebrates, e.g. worms, flies or maggots
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/20—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation using specific microorganisms or substances, e.g. enzymes, for activating or stimulating the treatment
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/50—Treatments combining two or more different biological or biochemical treatments, e.g. anaerobic and aerobic treatment or vermicomposting and aerobic treatment
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M1/00—Apparatus for enzymology or microbiology
- C12M1/107—Apparatus for enzymology or microbiology with means for collecting fermentation gases, e.g. methane
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
Abstract
The invention belongs to the field of aquaculture production, and particularly relates to a method for harmless treatment of livestock and poultry manure and generation of an organic fertilizer, aiming at the problems of comprehensive harmless treatment and resource utilization of the existing livestock and poultry manure, the following solutions are proposed, and the method comprises the following generation steps: the method comprises the following steps: collecting the livestock and poultry manure, stacking the collected livestock and poultry manure in a storage chamber, wherein the storage chamber is a hardened ground, two sides of the storage chamber are provided with separating grooves, and the top of the storage chamber is provided with a transparent rain baffle plate for blocking rainwater, so that the stacked manure is ensured to have low moisture content and form compost; step two: the storage room is forced to be ventilated and the internal temperature of the storage room is monitored, and the internal temperature of the livestock and poultry manure is kept between 15 and 45 ℃. Through selecting the crop straw to smash the back and stack with the mixture of animal manure, can accelerate the fermentation speed of animal manure, can reduce the formation and the diffusion of stink simultaneously, guarantee the inside higher temperature of heap, play the effect of supplementary fermentation.
Description
Technical Field
The invention relates to the technical field of breeding industry production, in particular to a harmless treatment method of livestock and poultry manure and a method for generating an organic fertilizer.
Background
Soil is an important environment for living, living and development of organisms and human society, and the soil environment pollution of China is continuously intensified along with rapid development of industrialization and rapid promotion of urbanization process. Agricultural product quality safety problems and population events caused by soil pollution increase year by year. Soil pollution is caused by various pollutants generated by human activities entering soil through various ways, the quantity and speed of the pollutants exceed the capacity of containing and purifying the soil, the physical and chemical properties, the composition, the properties and the like of the soil are developed and changed, the natural ecological balance of the soil is damaged, and the natural function disorder of the soil and the quality reduction of the soil are caused. Soil pollution is one of the pollution problems of three environmental elements (atmosphere, water and soil) in the world. The influence and harm of soil pollution on environment and human beings are that the soil can cause the composition, structure and function of soil to change, thereby influencing the normal growth and development of plants, causing harmful substances to accumulate in the plants and enter human bodies through food chains, harming the health of the human bodies and destroying the living environment of people.
At present, according to survey results, the national soil environment is not optimistic overall, from the viewpoint of pollution types, inorganic pollution caused by industrial production is mainly used, organic pollution caused by breeding industry is secondary, the specific gravity of composite pollution is small, and the three types of pollution directly influence the quality reduction of atmosphere, water and soil.
However, the comprehensive harmless treatment and resource utilization of the livestock and poultry manure in the breeding industry are rare, the depth is far from enough, and meanwhile, the research on the method for effectively and deeply developing and treating the livestock and poultry manure is not paid attention to, so that the livestock and poultry manure generated in the breeding industry is far from reaching the effective comprehensive utilization, and therefore, the invention is necessary for the harmless treatment and organic fertilizer generation method of the livestock and poultry manure.
Disclosure of Invention
The invention provides a harmless treatment method of livestock and poultry manure and an organic fertilizer generation method, which solves the problems that the research of a mode and a method for effectively and deeply developing and treating the livestock and poultry manure is not focused enough, and the livestock and poultry manure generated in the breeding industry is far from achieving effective comprehensive utilization.
In order to achieve the purpose, the invention adopts the following technical scheme:
a harmless treatment method of livestock and poultry manure and an organic fertilizer generation method comprise the following generation steps:
the method comprises the following steps: collecting the livestock and poultry manure, stacking the collected livestock and poultry manure in a storage chamber, wherein the storage chamber is a hardened ground, two sides of the storage chamber are provided with separating grooves, and the top of the storage chamber is provided with a transparent rain baffle plate for blocking rainwater, so that the stacked manure is ensured to have low moisture content and form compost;
step two: forcibly ventilating the storage room, monitoring the internal temperature of the livestock and poultry manure, keeping the internal temperature at 15-45 ℃, continuously stacking for 5-7 days, reducing ventilation, gradually increasing the compost temperature, controlling the ventilation when the compost temperature rises to 70 ℃, ensuring that the internal temperature is maintained at 65-75 ℃, increasing the ventilation when the high temperature is maintained for 8-12 days, reducing the temperature in the storage room, controlling the ventilation when the temperature is reduced to about 40 ℃, and keeping the temperature in the storage room at 35-45 ℃;
step three: the outside of the separation tank is connected with a methane tank, urine and sewage in the material are subjected to cellular precipitation and anaerobic digestion on sludge, suspended organic matters in the sewage are removed by using the principles of precipitation and anaerobic fermentation, after the sewage is subjected to precipitation treatment for 12-24 hours, the precipitated sludge can decompose the organic matters in the sludge into stable inorganic matters through more than 3 months of anaerobic digestion, and the treated sewage is purified;
step four: excrement in the storage chamber can produce high temperature after stacking fermentation to kill worm eggs and pathogenic bacteria, so that harmless treatment is achieved, and the organic fertilizer is obtained after treated excrement solid and raw materials of required organic fertilizer are added, mixed, crushed and stirred.
Preferably, in the first step, the livestock manure is collected by using a scraper manure cleaning machine and is transferred into the storage chamber by using a human powered vehicle.
Preferably, in the first step, part of the crop straws are selected, crushed and then mixed with the livestock and poultry manure for stacking, the crushed length of the crop straws is 4-5cm, and part of the fermentation bacteria agent is added for mixing and stacking, wherein the stacking width is 2-4m, and the stacking height is 1-1.5 m.
Preferably, in the second step, the water content in the compost is controlled to be 45-65%, the pH value is controlled to be 6.5-8.5, and ventilation ensures that the oxygen content in the compost is 8-18%.
Preferably, the biogas generated in the biogas pool in the third step is used for living and part of energy production in a farm, the sludge is discharged and dried, and is added with lower animals such as maggots, earthworms, snails and the like for biological decomposition, and the decomposed sludge can be used for producing organic fertilizer raw materials.
Preferably, the water content of the excrement in the fourth step is kept below 30 percent, so that the composting fermentation treatment work is completed.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the crop straws are selected, crushed and mixed with the livestock and poultry manure for stacking, so that the fermentation speed of the livestock and poultry manure can be accelerated, the formation and diffusion of odor can be reduced, the higher temperature in the stack body is ensured, and the effect of auxiliary fermentation is achieved;
2. the moisture, temperature and humidity of the stacked compost are controlled, so that the compost is subjected to temperature rise, high temperature, temperature reduction and decomposition, a large amount of thermophilic bacteria die or enter a sleeping state when the temperature rises to 60-70 ℃ in the temperature rise process, and organic matters are still continuously decomposed under the action of various enzymes. The heat can be gradually reduced due to the death of microorganisms and the weakening of the action of enzyme, when the temperature is lower than 70 ℃, dormant thermophilic microorganisms renew and activate to generate new heat, and after repeated times of keeping at the high temperature level of 70 ℃, humus is basically formed, compost substances tend to be stable, and complete fermentation treatment work is performed;
3. by separating solid from liquid in the fermentation process and transmitting the liquid to the methane tank, the methane generated in the methane tank can be used for living and part of energy production in a farm, thereby achieving the effects of energy conservation and emission reduction.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
The first embodiment is as follows:
a harmless treatment method of livestock and poultry manure and an organic fertilizer generation method comprise the following generation steps:
the method comprises the following steps: collecting livestock and poultry manure, collecting the livestock and poultry manure by using a scraper manure cleaning machine, transferring the livestock and poultry manure into a storage chamber by using a human powered vehicle, wherein the storage chamber is a hardened ground, two sides of the storage chamber are provided with separating grooves, the top of the storage chamber is provided with a transparent rain baffle plate for blocking rainwater, so that the moisture content in the stacked manure is low, the stacked livestock and poultry manure forms compost, a part of crop straws are selected, crushed and then mixed with the livestock and poultry manure for stacking, the crushed length of the crop straws is 4-5cm, and a part of fermentation microbial inoculum is added for mixing and stacking, and the stacking width is 2-4m and the height is 1-1.5 m;
step two: forcibly ventilating the storage room, monitoring the internal temperature of the livestock and poultry manure, keeping the internal temperature at 15 ℃, continuously stacking for 5 days, reducing ventilation, gradually increasing the temperature of the compost, controlling the ventilation when the temperature is increased to 70 ℃, ensuring that the internal temperature is maintained at 65 ℃, increasing the ventilation when the temperature is maintained at 8 days, reducing the temperature in the storage room, controlling the ventilation when the temperature is reduced to about 40 ℃, keeping the temperature in the storage room at 35 ℃, controlling the water content in the compost at 45%, controlling the pH value at 6.5, and ensuring that the oxygen content in the compost is 8% through ventilation;
step three: the outside of the separation tank is connected with a methane tank, urine and sewage in the material are subjected to cellular precipitation and anaerobic digestion on sludge, suspended organic matters in the sewage are removed by using the principles of precipitation and anaerobic fermentation, the sewage is subjected to precipitation treatment for 12 hours, the precipitated sludge is subjected to anaerobic digestion for more than 3 months to decompose the organic matters in the sludge into stable inorganic matters, the treated sewage is purified, the methane generated in the methane tank is used for living and partial production energy in a farm, the sludge is discharged, dried and added with lower animals such as maggots, earthworms, snails and the like for biological decomposition, and the decomposed sludge can be used for producing organic fertilizer raw materials;
step four: excrement in the storage chamber can produce high temperature after stacking fermentation and thereby kill worm's ovum and pathogenic bacteria, accomplished innocent treatment, and the excrement and urine water content keeps accomplishing compost fermentation treatment work below 30%, adds the excrement and urine solid after will handling and the raw materials of required fertilizer and mixes and smashes the stirring and obtain the fertilizer.
Example two:
a harmless treatment method of livestock and poultry manure and an organic fertilizer generation method comprise the following generation steps:
the method comprises the following steps: collecting livestock and poultry manure, collecting the livestock and poultry manure by using a scraper manure cleaning machine, transferring the livestock and poultry manure into a storage chamber by using a human powered vehicle, wherein the storage chamber is a hardened ground, two sides of the storage chamber are provided with separating grooves, the top of the storage chamber is provided with a transparent rain baffle plate for blocking rainwater, so that the moisture content in the stacked manure is low, the stacked livestock and poultry manure forms compost, a part of crop straws are selected, crushed and then mixed with the livestock and poultry manure for stacking, the crushed length of the crop straws is 4-5cm, and a part of fermentation microbial inoculum is added for mixing and stacking, and the stacking width is 2-4m and the height is 1-1.5 m;
step two: forcibly ventilating the storage room, monitoring the internal temperature of the livestock and poultry manure, keeping the internal temperature at 45 ℃, continuously stacking for 7 days, reducing ventilation, gradually increasing the temperature of the compost, controlling the ventilation when the temperature is increased to 70 ℃, ensuring that the internal temperature is maintained at 75 ℃, increasing the ventilation when the temperature is maintained at 12 days, reducing the temperature in the storage room, controlling the ventilation when the temperature is reduced to about 40 ℃, keeping the temperature in the storage room at 45 ℃, controlling the water content in the compost at 65%, controlling the pH value at 8.5, and ensuring that the oxygen content in the compost is 18% through ventilation;
step three: the outside of the separation tank is connected with a methane tank, urine and sewage in the material are subjected to cellular precipitation and anaerobic digestion on sludge, suspended organic matters in the sewage are removed by using the principles of precipitation and anaerobic fermentation, the sewage is subjected to precipitation treatment for 24 hours, the precipitated sludge is subjected to anaerobic digestion for more than 3 months to decompose the organic matters in the sludge into stable inorganic matters, the treated sewage is purified, the methane generated in the methane tank is used for living and partial production energy in a farm, the sludge is discharged, dried and added with lower animals such as maggots, earthworms, snails and the like for biological decomposition, and the decomposed sludge can be used for producing organic fertilizer raw materials;
step four: excrement in the storage chamber can produce high temperature after stacking fermentation and thereby kill worm's ovum and pathogenic bacteria, accomplished innocent treatment, and the excrement and urine water content keeps accomplishing compost fermentation treatment work below 30%, adds the excrement and urine solid after will handling and the raw materials of required fertilizer and mixes and smashes the stirring and obtain the fertilizer.
Example three:
a harmless treatment method of livestock and poultry manure and an organic fertilizer generation method comprise the following generation steps:
the method comprises the following steps: collecting livestock and poultry manure, collecting the livestock and poultry manure by using a scraper manure cleaning machine, transferring the livestock and poultry manure into a storage chamber by using a human powered vehicle, wherein the storage chamber is a hardened ground, two sides of the storage chamber are provided with separating grooves, the top of the storage chamber is provided with a transparent rain baffle plate for blocking rainwater, so that the moisture content in the stacked manure is low, the stacked livestock and poultry manure forms compost, a part of crop straws are selected, crushed and then mixed with the livestock and poultry manure for stacking, the crushed length of the crop straws is 4-5cm, and a part of fermentation microbial inoculum is added for mixing and stacking, and the stacking width is 2-4m and the height is 1-1.5 m;
step two: forcibly ventilating the storage room, monitoring the internal temperature of the livestock and poultry manure, keeping the internal temperature at 30 ℃, continuously stacking for 6 days, reducing ventilation, gradually increasing the temperature of the compost, controlling the ventilation when the temperature is increased to 70 ℃, ensuring that the internal temperature is maintained at 70 ℃, increasing the ventilation when the temperature is maintained at 10 days, reducing the temperature in the storage room, controlling the ventilation when the temperature is reduced to about 40 ℃, keeping the temperature in the storage room at 40 ℃, controlling the water content in the compost at 55%, controlling the pH value at 7.5, and ensuring that the oxygen content in the compost is 13% through ventilation;
step three: the outside of the separation tank is connected with a methane tank, urine and sewage in the material are subjected to cellular precipitation and anaerobic digestion on sludge, suspended organic matters in the sewage are removed by using the principles of precipitation and anaerobic fermentation, the sewage is subjected to precipitation treatment for 18 hours, the precipitated sludge is subjected to anaerobic digestion for more than 3 months to decompose the organic matters in the sludge into stable inorganic matters, the treated sewage is purified, the methane generated in the methane tank is used for living and partial production energy in a farm, the sludge is discharged, dried and added with lower animals such as maggots, earthworms, snails and the like for biological decomposition, and the decomposed sludge can be used for producing organic fertilizer raw materials;
step four: excrement in the storage chamber can produce high temperature after stacking fermentation and thereby kill worm's ovum and pathogenic bacteria, accomplished innocent treatment, and the excrement and urine water content keeps accomplishing compost fermentation treatment work below 30%, adds the excrement and urine solid after will handling and the raw materials of required fertilizer and mixes and smashes the stirring and obtain the fertilizer.
Example four:
through the comparison of the organic fertilizer and the existing organic fertilizer standards respectively obtained in the above embodiments, the organic fertilizer provided by the present invention is repeatedly detected during the comparison, and an average value is obtained, and the specific data is as follows:
| item (mg/kg) | Standard of merit | The invention |
| As | ≤30 | ≤15 |
| Hg | ≤5 | ≤2 |
| Pb | ≤100 | ≤50 |
| Cd | ≤3 | ≤3 |
| Cr | ≤300 | ≤150 |
In conclusion, the organic fertilizer prepared by the harmless treatment of the livestock and poultry manure and the organic fertilizer generation method provided by the invention has the advantages that the contents of Hg, As, Pb, Cr and other substances in the organic fertilizer are obviously reduced, the organic fertilizer completely meets the standard for use, the organic fertilizer can be prepared into a high-quality organic compound fertilizer, the organic compound fertilizer can be changed into valuable, and the environmental pollution can be reduced so As to prevent the spread of diseases.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. A harmless treatment method of livestock and poultry manure and an organic fertilizer generation method are characterized by comprising the following generation steps:
the method comprises the following steps: collecting the livestock and poultry manure, stacking the collected livestock and poultry manure in a storage chamber, wherein the storage chamber is a hardened ground, two sides of the storage chamber are provided with separating grooves, and the top of the storage chamber is provided with a transparent rain baffle plate for blocking rainwater, so that the stacked manure is ensured to have low moisture content and form compost;
step two: forcibly ventilating the storage room, monitoring the internal temperature of the livestock and poultry manure, keeping the internal temperature at 15-45 ℃, continuously stacking for 5-7 days, reducing ventilation, gradually increasing the compost temperature, controlling the ventilation when the compost temperature rises to 70 ℃, ensuring that the internal temperature is maintained at 65-75 ℃, increasing the ventilation when the high temperature is maintained for 8-12 days, reducing the temperature in the storage room, controlling the ventilation when the temperature is reduced to about 40 ℃, and keeping the temperature in the storage room at 35-45 ℃;
step three: the outside of the separation tank is connected with a methane tank, urine and sewage in the material are subjected to cellular precipitation and anaerobic digestion on sludge, suspended organic matters in the sewage are removed by using the principles of precipitation and anaerobic fermentation, after the sewage is subjected to precipitation treatment for 12-24 hours, the precipitated sludge can decompose the organic matters in the sludge into stable inorganic matters through more than 3 months of anaerobic digestion, and the treated sewage is purified;
step four: excrement in the storage chamber can produce high temperature after stacking fermentation to kill worm eggs and pathogenic bacteria, so that harmless treatment is achieved, and the organic fertilizer is obtained after treated excrement solid and raw materials of required organic fertilizer are added, mixed, crushed and stirred.
2. The method as claimed in claim 1, wherein the first step comprises collecting the livestock manure with a scraper manure cleaning machine and transferring the livestock manure to a storage chamber with a human powered vehicle.
3. The method for harmless treatment of livestock and poultry manure and generation of organic fertilizer according to claim 1, wherein in the first step, part of crop straws are selected, crushed and mixed with livestock and poultry manure for stacking, the crushed length of the crop straws is 4-5cm, and part of fermentation bacteria agent is added for mixing and stacking, the stacking width is 2-4m, and the height is 1-1.5 m.
4. The method as claimed in claim 1, wherein the water content of the compost in the second step is controlled to 45-65%, the pH value is controlled to 6.5-8.5, and ventilation is performed to ensure that the oxygen content in the compost is 8-18%.
5. The method as claimed in claim 1, wherein the biogas generated in the biogas digester in the third step is used for living and partial energy production in a farm, the sludge is discharged, dried and biologically decomposed by adding lower animals such as maggots, earthworms, snails and the like, and the decomposed sludge can be used for producing organic fertilizer raw materials.
6. The method for harmless treatment of livestock and poultry manure and generation of organic fertilizer according to claim 1, wherein the water content of the manure in the fourth step is kept below 30% to complete composting and fermentation treatment.
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| CN202011121866.XA CN112299897A (en) | 2020-10-20 | 2020-10-20 | Harmless treatment of livestock and poultry manure and organic fertilizer generation method |
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| CN202011121866.XA CN112299897A (en) | 2020-10-20 | 2020-10-20 | Harmless treatment of livestock and poultry manure and organic fertilizer generation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115783562A (en) * | 2022-12-28 | 2023-03-14 | 南京六合中等专业学校 | Wisdom farm waste classification device based on internet of things |
-
2020
- 2020-10-20 CN CN202011121866.XA patent/CN112299897A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115783562A (en) * | 2022-12-28 | 2023-03-14 | 南京六合中等专业学校 | Wisdom farm waste classification device based on internet of things |
| CN115783562B (en) * | 2022-12-28 | 2024-01-23 | 南京六合中等专业学校 | Intelligent farm garbage classification device based on internet of things technology |
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