CN109133555A - A kind of Feces of Beef Cattle resource comprehensive utilization process - Google Patents
A kind of Feces of Beef Cattle resource comprehensive utilization process Download PDFInfo
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- CN109133555A CN109133555A CN201811178263.6A CN201811178263A CN109133555A CN 109133555 A CN109133555 A CN 109133555A CN 201811178263 A CN201811178263 A CN 201811178263A CN 109133555 A CN109133555 A CN 109133555A
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- cow dung
- biogas
- feces
- cattle
- comprehensive utilization
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- 241000283690 Bos taurus Species 0.000 title claims abstract description 108
- 210000003608 fece Anatomy 0.000 title claims abstract description 103
- 238000000034 method Methods 0.000 title claims abstract description 18
- 235000015278 beef Nutrition 0.000 title claims abstract description 16
- 239000003895 organic fertilizer Substances 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 238000000926 separation method Methods 0.000 claims abstract description 12
- 239000003337 fertilizer Substances 0.000 claims abstract description 10
- 239000000446 fuel Substances 0.000 claims abstract description 5
- 238000010248 power generation Methods 0.000 claims abstract description 4
- 239000010871 livestock manure Substances 0.000 claims description 32
- 241000894006 Bacteria Species 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 244000005700 microbiome Species 0.000 claims description 13
- 239000000243 solution Substances 0.000 claims description 13
- 210000002700 urine Anatomy 0.000 claims description 12
- 238000011010 flushing procedure Methods 0.000 claims description 10
- 238000010564 aerobic fermentation Methods 0.000 claims description 8
- 238000010790 dilution Methods 0.000 claims description 8
- 239000012895 dilution Substances 0.000 claims description 8
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 8
- 240000006394 Sorghum bicolor Species 0.000 claims description 6
- 235000011684 Sorghum saccharatum Nutrition 0.000 claims description 6
- 240000008042 Zea mays Species 0.000 claims description 6
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 6
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 6
- 235000005822 corn Nutrition 0.000 claims description 6
- 239000005416 organic matter Substances 0.000 claims description 5
- 241000186046 Actinomyces Species 0.000 claims description 4
- 241000193830 Bacillus <bacterium> Species 0.000 claims description 4
- 241000196324 Embryophyta Species 0.000 claims description 4
- 241000235342 Saccharomycetes Species 0.000 claims description 4
- CKUAXEQHGKSLHN-UHFFFAOYSA-N [C].[N] Chemical compound [C].[N] CKUAXEQHGKSLHN-UHFFFAOYSA-N 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 235000014655 lactic acid Nutrition 0.000 claims description 4
- 239000004310 lactic acid Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 244000052769 pathogen Species 0.000 claims description 4
- 230000001717 pathogenic effect Effects 0.000 claims description 4
- 230000006641 stabilisation Effects 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 2
- 238000000855 fermentation Methods 0.000 claims 1
- 230000004151 fermentation Effects 0.000 claims 1
- 230000000243 photosynthetic effect Effects 0.000 claims 1
- 238000004064 recycling Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 208000028659 discharge Diseases 0.000 abstract description 5
- 235000013311 vegetables Nutrition 0.000 abstract description 5
- 244000144972 livestock Species 0.000 abstract description 4
- 244000144977 poultry Species 0.000 abstract description 4
- 239000010865 sewage Substances 0.000 abstract description 3
- 230000002550 fecal effect Effects 0.000 abstract description 2
- 239000002002 slurry Substances 0.000 abstract description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000000354 decomposition reaction Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 241000283216 Phocidae Species 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 235000003642 hunger Nutrition 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 230000037351 starvation Effects 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 241000287828 Gallus gallus Species 0.000 description 1
- 241000361919 Metaphire sieboldi Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000029142 excretion Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000007775 late Effects 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 239000002366 mineral element Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 235000021049 nutrient content Nutrition 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000031068 symbiosis, encompassing mutualism through parasitism Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
-
- 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
- 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
- C12M21/00—Bioreactors or fermenters specially adapted for specific uses
- C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
-
- 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
- C12M43/00—Combinations of bioreactors or fermenters with other apparatus
- C12M43/08—Bioreactors or fermenters combined with devices or plants for production of electricity
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Zoology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Wood Science & Technology (AREA)
- Molecular Biology (AREA)
- Genetics & Genomics (AREA)
- Biotechnology (AREA)
- Microbiology (AREA)
- Sustainable Development (AREA)
- Biomedical Technology (AREA)
- Biochemistry (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Fertilizers (AREA)
Abstract
The invention belongs to livestock and poultry cultivation technical field technical fields, and in particular to a kind of Feces of Beef Cattle resource comprehensive utilization process, comprising the following steps: (1) be separated by solid-liquid separation；(2) prepared by fertilizer；(3) biogas manufactures.The present invention can get organic fertilizer and biogas after cow dung is carried out integrated treatment, and the organic fertilizer of acquisition can be used to plant timothy, vegetables etc., while cow dung harmless treatment, reach recycling for resource；Biogas obtained can be used as fuel or power generation, while biogas residue can be used for producing organic fertilizer, and biogas slurry can be completely used for production foliar fertilizer or pouring, realize the innoxious, pollution-free of cattle farm fecal sewage, zero discharge treatment.
Description
Technical field
The invention belongs to livestock and poultry cultivation technical field technical fields, and in particular to a kind of Feces of Beef Cattle comprehensive utilization of resources work
Skill.
Background technique
At abroad, especially economically developed country, the main outlet that cow dung Fertilizer Transformed returning to the field is recycled as excrement,
And in developing country, excrement fodder is still main outlet, but there are many security risks for this mode.American-European at present, day
This grade developed country do not advocate substantially to make feed with excrement, and the country such as Eastern Europe then advocates that liquid manure separates, and solid excrement slag is used
Make feed or fermenting and producing organic fertilizer, liquid portion is for producing biogas or irrigated farmland.From the point of view of external improvement situation,
The mode for mainly taking animal husbandry and entire ecological agriculture height to combine carries out multilayer according to policies and regulations by technological guidance
Secondary various management recycle to independent process, set, follow bad symbiosis, the modern comprehensive utilization technique remotely monitored etc.
Development.
China for cow dung processing be mainly energy, Fertilizer Transformed, fodder, edible fungus culturing, at earthworm biological decomposition
Other natural ecological resource methods such as reason.
Internationally recognized offal treatment principle is " minimizing, innoxious, recycling ", how that cow dung is innoxious, money
Sourceization processing, reduces environmental pollution, and reinforces restoration of the ecosystem, and production green, non-harmful biological organic fertilizer turn waste into wealth, finally
So that vaccary is reached " no pollution discharge ", " resource utilization ", is the top priority of current scientific worker.
Cow dung itself is a kind of good biomass resource.It is the same with other feces of livestock and poultry, also containing a large amount of in cow dung
Mineral matter element and nutriment abundant, cow dung are of close texture, and water content is more, decompose slowly, and calorific value is low, belong to late effect property fertilizer
Material.From the point of view of nutrient content, the mineral element and nutriment major part content in cow dung are low compared with other feces of livestock and poultry, organic
Matter content is close with chicken manure, and only crude fibre, coarse ash and nitrogen-free extracts content are relatively high.But its yield is high, total amount
Greatly, therefore mineral matter element and nutriment total amount are also relatively more.By different processing technique and technique, can produce more
Kind innoxious, recycling, high efficiency value-added product, it is antipollution and meanwhile also can obtain good economic benefit and
Social benefit.
In recent years, with China beef cattle, milk cow production scale, intensive rapid development, vaccary excrement is concentrated
Problem of environmental pollution caused by discharge is increasingly prominent.National only cow population is just up to 12,000,000 or so within 2010.Cow dung day
Excretion is up to 20 ~ 300,000 tons, especially large-scale milch cow farms, and means are effectively treated due to lacking, what a large amount of cow dungs were piled into
Pollution is on the rise.While causing to soil, water source, atmosphere pollution, a large amount of stackings also take up vaccary itself to be had cow dung
The production place of limit affects the normal production order in vaccary, creates beef cattle with to beef cattle breeding cell and scale
The raising of environmental requirement, the outlet of cow dung and comprehensive utilization are extremely urgent.
Summary of the invention
In view of the above-mentioned problems, the object of the present invention is to provide a kind of innoxious, nothings that can be realized cattle farm fecal sewage
Pollution, zero discharge treatment and the Feces of Beef Cattle resource comprehensive utilization process for being able to achieve resource circulation utilization.
A kind of Feces of Beef Cattle resource comprehensive utilization process, comprising the following steps:
(1) it is separated by solid-liquid separation: the dry cow dung of the 85-95% in cowshed is taken out and stack to cattle manure field, recycle flushing water
Cowshed is rinsed, urine remaining in cowshed and remaining cow dung are washed away, realizes and is separated by solid-liquid separation, then will contain urine and cow dung
Flushing water collect it is spare；Preceding separation of solid and liquid of fermenting is carried out to cow dung, reduces the viscosity of material, conducive to the decomposition of microorganism,
Improve the utility value of cow dung.
(2) prepared by fertilizer: the cow dung in cattle manure field is pressed 100:(8-15 with high-efficiency fermenting microorganism, stalk): (7-
12) after ratio is mixed and made into cattle manure heap and is put into fermenting cellar progress aerobic fermentation, the pathogen in cow dung is effectively killed
And weed seed, and organic matter is made to reach stabilisation, innoxious organic fertilizer is made, the organic fertilizer of acquisition can be used to kind
Timothy, vegetables etc. are planted, while cow dung harmless treatment, reach recycling for resource；Cow dung is sent out during aerobic fermentation
At 54-68 DEG C, cattle manure heap pH value is controlled below 6.0 for the temperature control of ferment heap；The control of cattle manure heap initial humidity exists
57-62%；Cattle manure heap carbon-nitrogen ratio is controlled in 15-20；The actually required air capacity of cattle manure heap is the 5-8 of theoretical air requirement
Times；
(3) biogas manufactures: 450-500 cubic metre of methane-generating pit is built, by the rushing containing urine and cow dung of collection in step (1)
Wash water and corn, sorghum are in 100:(9-25): the ratio of (5-15) drains into methane-generating pit after mixing, seals methane-generating pit, every
Anoxybiotic gas generates biogas using anaerobic reaction, and does fuel using biogas, replaces coal, petroleum, natural gas etc. can not in various aspects
Regenerated resources may further be used to power generation etc..
Further, the amount of taken out dry cow dung is the 90% of total cow dung amount in step (1).
Further, in step (2) the dilution bacterium solution of high-efficiency fermenting microorganism by actinomyces, lactic acid bacteria, bacillus, light
Any one bacterium solution in conjunction bacterium, saccharomycete is added the water dilution that quality is 22-32 times of bacterium solution quality and obtains.
Further, the ratio of the cow dung and high-efficiency fermenting microorganism, stalk is 100:11:9.
Further, the ratio of flushing water and corn, sorghum is 100:15:7 in step (3).
The present invention, which will can get organic fertilizer and biogas, the organic fertilizer of acquisition after cow dung progress integrated treatment, to be used to
Timothy, vegetables etc. are planted, while cow dung harmless treatment, reach recycling for resource；Biogas obtained can be used as firing
Material or power generation, while biogas residue can be used for producing organic fertilizer, biogas slurry can be completely used for production foliar fertilizer or pouring, realize cattle farm excrement
The innoxious, pollution-free of sewage, zero discharge treatment.
Specific embodiment
Principles and features of the present invention are described in further detail below with reference to embodiment, example is served only for explaining
Invention, is not intended to limit the scope of the present invention.
Embodiment one:
A kind of Feces of Beef Cattle resource comprehensive utilization process, comprising the following steps:
(1) it is separated by solid-liquid separation: 90% dry cow dung in cowshed is taken out and stack to cattle manure field, flushing water is recycled to rinse
Cowshed washes away urine remaining in cowshed and remaining cow dung, realizes and is separated by solid-liquid separation, then by rushing containing urine and cow dung
Wash water is collected spare；Preceding separation of solid and liquid of fermenting is carried out to cow dung, reduces the viscosity of material, conducive to the decomposition of microorganism, is improved
The utility value of cow dung.
(2) fertilizer prepare: by cattle manure field cow dung and high-efficiency fermenting microorganism, stalk in 100:11:9 ratio
After being mixed and made into cattle manure heap and being put into fermenting cellar progress aerobic fermentation, pathogen and the ruderal species in cow dung are effectively killed
Son, and organic matter is made to reach stabilisation, is made innoxious organic fertilizer, the organic fertilizer of acquisition can be used to plant timothy,
Vegetables etc. reach recycling for resource while cow dung harmless treatment；The temperature of cattle manure heap during aerobic fermentation
At 58 DEG C, cattle manure heap pH value is controlled 5.7 for degree control；Cattle manure heap initial humidity is controlled 61%；Cattle manure heap carbon
Nitrogen is than control 16；The actually required air capacity of cattle manure heap is 6 times of theoretical air requirement；
(3) biogas manufactures: building 480 cubic metres of methane-generating pit, the flushing water containing urine and cow dung that will be collected in step (1)
Methane-generating pit is drained into after mixing in the ratio of 100:15:7 with corn, sorghum, seals methane-generating pit, starvation, using detesting
Oxygen reaction generates biogas, and does fuel using biogas, replaces the non-renewable resources such as coal, petroleum, natural gas in various aspects, may be used also
For generating electricity.
Further, in step (2) the dilution bacterium solution of high-efficiency fermenting microorganism by actinomyces, lactic acid bacteria, bacillus, light
Any one bacterium solution in conjunction bacterium, saccharomycete is added the water dilution that quality is 25 times of bacterium solution quality and obtains.
Embodiment two:
A kind of Feces of Beef Cattle resource comprehensive utilization process, comprising the following steps:
(1) it is separated by solid-liquid separation: 86% dry cow dung in cowshed is taken out and stack to cattle manure field, flushing water is recycled to rinse
Cowshed washes away urine remaining in cowshed and remaining cow dung, realizes and is separated by solid-liquid separation, then by rushing containing urine and cow dung
Wash water is collected spare；Preceding separation of solid and liquid of fermenting is carried out to cow dung, reduces the viscosity of material, conducive to the decomposition of microorganism, is improved
The utility value of cow dung.
(2) fertilizer prepare: by cattle manure field cow dung and high-efficiency fermenting microorganism, stalk by 100:13:11 ratio
After example is mixed and made into cattle manure heap and is put into fermenting cellar progress aerobic fermentation, pathogen and the ruderal species in cow dung are effectively killed
Son, and organic matter is made to reach stabilisation, is made innoxious organic fertilizer, the organic fertilizer of acquisition can be used to plant timothy,
Vegetables etc. reach recycling for resource while cow dung harmless treatment；The temperature of cattle manure heap during aerobic fermentation
At 65 DEG C, cattle manure heap pH value is controlled below 6.0 for degree control；Cattle manure heap initial humidity is controlled 58%；Cattle manure
Heap carbon-nitrogen ratio is controlled 19；The actually required air capacity of cattle manure heap is 7 times of theoretical air requirement；
(3) biogas manufactures: building 460 cubic metres of methane-generating pit, the flushing water containing urine and cow dung that will be collected in step (1)
Methane-generating pit is drained into after mixing in the ratio of 100:23:13 with corn, sorghum, seals methane-generating pit, starvation, using detesting
Oxygen reaction generates biogas, and does fuel using biogas, replaces the non-renewable resources such as coal, petroleum, natural gas in various aspects, may be used also
For generating electricity.
Further, in step (2) the dilution bacterium solution of high-efficiency fermenting microorganism by actinomyces, lactic acid bacteria, bacillus, light
Any one bacterium solution in conjunction bacterium, saccharomycete is added the water dilution that quality is 30 times of bacterium solution quality and obtains.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of Feces of Beef Cattle resource comprehensive utilization process, it is characterised in that: the following steps are included:
(1) it is separated by solid-liquid separation: the dry cow dung of the 85-95% in cowshed is taken out and stack to cattle manure field, recycle flushing water
Cowshed is rinsed, urine remaining in cowshed and remaining cow dung are washed away, realizes and is separated by solid-liquid separation, then will contain urine and cow dung
Flushing water collect it is spare；
(2) prepared by fertilizer: the dilution bacterium solution of cow dung and high-efficiency fermenting microorganism in cattle manure field, stalk are pressed 100:(8-
15): after the ratio of (7-12) is mixed and made into cattle manure heap and is put into fermenting cellar progress aerobic fermentation, effectively killing in cow dung
Pathogen and weed seed, and organic matter is made to reach stabilisation, innoxious organic fertilizer is made；Cow dung during aerobic fermentation
At 54-68 DEG C, cattle manure heap pH value is controlled below 6.0 for the temperature control of fermentation heap；The control of cattle manure heap initial humidity
In 57-62%；Cattle manure heap carbon-nitrogen ratio is controlled in 15-20；The actually required air capacity of cattle manure heap is the 5- of theoretical air requirement
8 times；
(3) biogas manufactures: 450-500 cubic metre of methane-generating pit is built, by the rushing containing urine and cow dung of collection in step (1)
Wash water and corn, sorghum are in 100:(9-25): the ratio of (5-15) drains into methane-generating pit after mixing, seals methane-generating pit, every
Anoxybiotic gas generates biogas using anaerobic reaction, and does fuel or power generation using biogas.
2. Feces of Beef Cattle resource comprehensive utilization process according to claim 1, it is characterised in that: taken out in step (1) dry
The amount of cow dung is the 90% of total cow dung amount.
3. Feces of Beef Cattle resource comprehensive utilization process according to claim 1, it is characterised in that: high-efficiency fermenting in step (2)
The dilution bacterium solution of microorganism is added by any one bacterium solution in actinomyces, lactic acid bacteria, bacillus, photosynthetic bacteria, saccharomycete
Quality is that the water of 22-32 times of bacterium solution quality is diluted and obtained.
4. Feces of Beef Cattle resource comprehensive utilization process according to claim 3, it is characterised in that: the cow dung and high-efficiency fermenting
Microorganism, stalk ratio be 100:11:9.
5. according to claim 1 to Feces of Beef Cattle resource comprehensive utilization process described in any one of 4, it is characterised in that: step
(3) ratio of flushing water and corn, sorghum is 100:15:7 in.
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| CN201811178263.6A CN109133555A (en) | 2018-10-10 | 2018-10-10 | A kind of Feces of Beef Cattle resource comprehensive utilization process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110002706A (en) * | 2019-04-23 | 2019-07-12 | 上海舒圣投资管理有限公司 | A kind of pig farm excreta method for innocent treatment |
| CN112358127A (en) * | 2020-10-27 | 2021-02-12 | 甘肃省科学院生物研究所 | Integrated concept of future health development of aquaculture and microorganism application in whole industrial chain |
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| CN106336251A (en) * | 2016-08-29 | 2017-01-18 | 山东鑫基牧业有限公司 | Method for making bio-organic fertilizer with fermentation of livestock and poultry excrement |
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