CN109650956A - A kind of processing method of pig manure - Google Patents
A kind of processing method of pig manure Download PDFInfo
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- CN109650956A CN109650956A CN201910026245.4A CN201910026245A CN109650956A CN 109650956 A CN109650956 A CN 109650956A CN 201910026245 A CN201910026245 A CN 201910026245A CN 109650956 A CN109650956 A CN 109650956A
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- excrement
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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
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D9/00—Other inorganic fertilisers
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/20—Liquid fertilisers
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Fertilizers (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a kind of processing methods of pig manure, specifically comprise the following steps: 1) collecting dung: according to the scale of farm, for the suitable hermetically sealed concrete manure pit of construction volume for collecting excrement and preventing stink from leaking, concrete manure pit is equipped with pressure reducing valve；2) it is concentrated under reduced pressure: the excrement of collection is pumped into concentration tank by the pipeline of sealing, negative pressure is generated in concentration tank, and concentration tank is heated, excrement in tank boils under negative pressure, generate water vapour, ammonia, hydrogen sulfide and other escaping gas, by gas extraction into pond, stop concentration when excrement concentration is nearly completed in tank；3) processing of condensate residue: solidity object after concentration is discharged from concentration tank bottom, be added agricultural waste material and probiotics build heap fermentation, be granulated after become organic fertilizer；, to neutrality, the liquid manure of colorless and odorless will be become containing the water of ammonia and hydrogen sulfide adjustment pH value.
Description
Technical field
The present invention relates to the innoxious process for treating field of livestock-raising excreta more particularly to a kind of processing sides of pig manure
Method.
Background technique
Pork is the main non-staple food of Chinese, and China is also maximum pig-breeding country in the world, and annual delivers for sale
Amount is at 700,000,000 or so.The processing of pig manure is a very stubborn problem.The discharge of untreated pig manure to soil and water source all
It will cause great pollution.
The traditional processing mode of pig manure is: being separated by solid-liquid separation first, if the undigested fiber of solidity owner, is used as heap
Fertilizer, but the serious nitrogen stress of this compost.Liquid object is mainly pig urine, and pig urine generates biogas through anaerobic fermentation, and biogas ingredient is mainly
Methane and carbon dioxide, carbon dioxide can be directly discharged into atmosphere to the two after separation, and biogas can be used as fuel.But biogas yield
Related to temperature, summer biogas is excessive, and winter, then biogas was insufficient, can not continuously and stably provide fuel.
Therefore, it is badly in need of finding swine manure treatment method that is a kind of simple and environmentally-friendly and changing harmful to treasure.
Summary of the invention
The invention aims to provide a kind of completely new swine manure treatment method, can very simply be handled using this method
Pig manure can not only produce a large amount of organic fertilizer, but also not will cause any pollution to environment, be suitble to push away in China
Extensively.
The present invention is achieved by the following technical solution:
A kind of processing method of pig manure, specifically comprises the following steps:
1) collecting dung: according to the scale of farm, the suitable hermetically sealed concrete manure pit of volume is built for collecting excrement
Just and prevent stink from leaking, concrete manure pit is equipped with pressure reducing valve；
2) it is concentrated under reduced pressure: the excrement of collection being pumped into concentration tank by the pipeline of sealing, negative pressure is generated in concentration tank,
And concentration tank is heated, the excrement in tank boils under negative pressure, generates water vapour, ammonia, hydrogen sulfide and other volatility
Gas stops concentration when excrement concentration is nearly completed in tank by gas extraction into pond；
3) processing of condensate residue:
Solidity object after concentration is discharged from concentration tank bottom, is added agricultural waste material and after probiotics builds heap fermentation, is granulated
Become organic fertilizer；
, to neutrality, the liquid manure of colorless and odorless will be become containing the water of ammonia and hydrogen sulfide adjustment pH value.
According to the scale of farm described in step 1) of the present invention, builds the suitable hermetically sealed concrete manure pit of volume and be used for
Excrement is collected, is according to every daily excreta of live pig of growing up at 3 kilograms or so, take breeding stock as the farm of 1000 pigs
On the basis of, about 3 tons of excrement is generated daily, the hermetically sealed concrete manure pit that a volume is 5 cubic metres is built, for collecting excrement
Just and prevent stink from leaking, hermetically sealed concrete manure pit is equipped with pressure reducing valve, and not in time to prevent night soil-treatment, pressure is excessive in pond
It generates dangerous.
The excrement of collection is pumped into concentration tank by the pipeline of sealing described in step 2), is generated in concentration tank negative
Pressure, and concentration tank is heated, the excrement in tank boils under negative pressure, is that the excrement that will be collected is pumped by the pipeline of sealing
In concentration tank, negative pressure is generated in concentration tank using water circulation vavuum pump, concentration tank uses steam or electric heating, and negative pressure makes excrement
Just it boiling at 60 DEG C or so, concentration tank is furnished with blender, and main function is to guarantee excrement homogeneous heating, and prevent excrement coking,
Use reduced pressure mainly for the saving energy.
Described in step 2) by gas extraction into pond, when in tank excrement concentration be nearly completed when stop concentration, be by
Gas is directly pumped water circulation vavuum pump by water-circulating pump and provides in the pond of water, when excrement is concentrated into residue and only has in tank
Former excrement amount 20% when, i.e. concentration tank gas evaporation amount reaches 80%, stops concentration.
Agricultural waste material described in step 3) discards species adaptation to local conditions, sugarcane leaf, straw, jade of the south to crush
Based on rice stalk, based on the northern wheat stalk to crush.
Solidity object after concentration described in step 3) is discharged from concentration tank bottom, and agricultural waste material is added and probiotics builds heap
Fermentation becomes organic fertilizer after being granulated, and is that the solidity object after concentration is discharged from concentration tank bottom, farming is added by the weight ratio of 1:1
Object waste, and probiotics is added in 1L/ tons of ratio, it is uniformly mixed, builds heap and ferment, 55-65 DEG C of fermentation temperature, the time 3
Month.
The probiotics, from the market directly purchase, preferably by after cultivating bacterial strain Bacillus subtilis,
Bacillus amyloliquefaciens, Bacillus licheniformis, Lactobacillus plantarum according to
The volume ratio of 2:2:1:1 forms, and cultural method has characteristics that referring to the prior art, such composition
1. safe and non-toxic, microbial strains are taken from edaphon, plant roots leaf bacterial parasite and traditional fermentation and ferment
Food, bacterial strain itself and its tunning or dead cell, do not have pathogenic, toxicity and carcinogenic reaction, it is no added anyone
Work and chemical raw material, do not add auxin and antibiotic, are a kind of pure natural, nonhazardous products；
2. culture propagation is rapid, and stability is high；
3. when growing microorganism, high concentration comprehensive enzyme (proteolytic enzyme, lipase, starch can be released
Amylase, fiber hydrolization ferment)；It can discharge that high value is vitamin B groups natural, K, Amino acid, minerals.High concentration can be discharged
Natural antimicrobial substance lactic acid and subtilin；Because of the effect of composite thallus, have decompose, synthesis, oxidation, reduction and deodorization it
Comprehensive function；The breeding of pathogeny infectious bacteria and growth can effectively be inhibited；Various plants can be effectively inhibited to infect pathogeny bacterium, as cowpea becomes rusty
Disease, powdery mildew, anthracnose, Solanaceae fungoid stem wilt, damping-off, samping off, yellowtop.It, can when for chicken manure pig manure
It reduces organic malodor molecules such as ammonia in fecaluria, hydrogen sulfide, mercaptan, Trimethylamine, vulcanization methyl to generate, in accelerated decomposition fecaluria
The harmful substance given out assists to accelerate Composting.
PH value will be adjusted described in step 3) containing the water of ammonia and hydrogen sulfide to neutrality, is to containing ammonia and hydrogen sulfide
Water in citric acid be added adjust pH value to 7, be directly used in fruits and vegetables plantation fertilising after becoming the liquid manure of colorless and odorless.
Compared with prior art, the present invention has the advantage that
1, the entire treatment process of the present invention all carries out in the system of sealing, not will cause stink and leaks；Consolidating after concentration
Property object has been destitute of smell.
2, the entire treatment process of the present invention not will cause the loss of nitrogen, by the way that agricultural waste material and probiotics fermention is added
Afterwards, it is granulated and becomes organic fertilizer, not only take full advantage of a large amount of agricultural waste material, can also be provided for society a large amount of organic
Fertilizer.
3, the gas that concentration process generates is dissolved in after water after the liquid manure for becoming colorless and odorless by adjusting pH value to neutrality directly
It connects for fruits and vegetables plantation fertilising.
Specific embodiment
With embodiment, the invention will be further described below, but the invention is not limited to these embodiments.
Embodiment 1:
A kind of processing method of pig manure, specifically comprises the following steps:
1) collection of excrement:
On the basis of being the farm of 1000 pigs by breeding stock, about 3 tons of excrement is generated daily, needs to build a volume
Pond is sealed for 5 cubic metres of concrete, excrement is flowed into sealing pond by special pipeline from pig house and collected；
2) it is concentrated under reduced pressure:
The development of concentration tank: concentration tank uses corrosion resistant SUS304 stainless steel, and volume is 1.5 cubic metres, and top matches 3.5
Kilowatt blender, surrounding match 1 manhole and 4 peepholes, and steam heating or electric heating, heat exchange area 15 can be used in heating ring
Square metre, it is ensured that 600 kgs/hr or more of evaporation capacity, concentration tank, which is also equipped with, to connect with water circulation vavuum pump and manure pit
Connector, lower end are slag notch, for excluding excrement concentrate；
Water circulation vavuum pump:
To guarantee to save energy consumption, it is necessary to select suitable water circulation vavuum pump, be still 1000 pigs with breeding stock
On the basis of farm, vacuum pump selects power of motor for 15KW, the hydraulic ejector that sucking rate is 300 cubes ms/h；
3) concrete operations:
(1) start vacuum pump, open the pipeline valve that is connected with concentration tank；
(2) it opens concentration tank to be connected with manure pit valve, excrement is drawn into concentration tank under negative pressure of vacuum from manure pit, when dense
When excrement amount reaches the 2/3 of tank volume in contracting tank, valve is closed；
(3) turn on agitator, starting heating ring, after excrement boiling, moisture, ammonia, hydrogen sulfide and other volatilizations therein
Property gas be rapidly pumped into pond by vacuum tube, when enrichment reaches 80%, close heating ring and vacuum tube valves, open
Open cleanout door, the excrement solidity object after discharge concentration；
(4) excrement solidity object is mixed with crushing straw, and addition probiotics builds heap and ferments, and 55-65 DEG C of fermentation temperature, the time 3
A month, being granulated became organic fertilizer；
Probiotics by after cultivating bacterial strain Bacillus subtilis, Bacillus amyloliquefaciens,
Bacillus licheniformis, Lactobacillus plantarum are formed according to the volume ratio of 2:2:1:1；
(5) be added in the pond for collecting moisture, ammonia, hydrogen sulfide and other escaping gas in citric acid and pH value extremely
7, fruits and vegetables plantation fertilising is directly used in after becoming the liquid manure of colorless and odorless.
(on the basis of the farm of 1000 pigs, daily available excrement solidity object 600kg is added 600kg and crushes straw
Stalk and 1.2L probiotics are uniformly mixed, and 1.2 tons of organic fertilizers can be obtained after building heap fermentation.)
Embodiment 2:
A kind of processing method of pig manure, specifically comprises the following steps:
1) collection of excrement:
On the basis of being the farm of 1000 pigs by breeding stock, about 3 tons of excrement is generated daily, needs to build a volume
Pond is sealed for 5 cubic metres of concrete, excrement is flowed into sealing pond by special pipeline from pig house and collected；
2) it is concentrated under reduced pressure:
The development of concentration tank: concentration tank uses corrosion resistant SUS304 stainless steel, and volume is 1.5 cubic metres, and top matches 3.5
Kilowatt blender, surrounding match 1 manhole and 4 peepholes, and steam heating or electric heating, heat exchange area 15 can be used in heating ring
Square metre, it is ensured that 600 kgs/hr or more of evaporation capacity, concentration tank, which is also equipped with, to connect with water circulation vavuum pump and manure pit
Connector, lower end are slag notch, for excluding excrement concentrate；
Water circulation vavuum pump:
To guarantee to save energy consumption, it is necessary to select suitable water circulation vavuum pump, be still 1000 pigs with breeding stock
On the basis of farm, vacuum pump selects power of motor for 15KW, the hydraulic ejector that sucking rate is 300 cubes ms/h；
3) concrete operations:
(1) start vacuum pump, open the pipeline valve that is connected with concentration tank；
(2) it opens concentration tank to be connected with manure pit valve, excrement is drawn into concentration tank under negative pressure of vacuum from manure pit, when dense
When excrement amount reaches the 2/3 of tank volume in contracting tank, valve is closed；
(3) turn on agitator, starting heating ring, after excrement boiling, moisture, ammonia, hydrogen sulfide and other volatilizations therein
Property gas be rapidly pumped into pond by vacuum tube, when enrichment reaches 80%, close heating ring and vacuum tube valves, open
Open cleanout door, the excrement solidity object after discharge concentration；
(4) excrement solidity object is mixed with crushing straw, and addition probiotics builds heap and ferments, and 55-65 DEG C of fermentation temperature, the time 3
A month, being granulated became organic fertilizer；
Probiotics (Yongfeng EM activity bacterium stoste cultivate special comprehensive type probiotics) is from market purchasing；
(5) be added in the pond for collecting moisture, ammonia, hydrogen sulfide and other escaping gas in citric acid and pH value extremely
7, fruits and vegetables plantation fertilising is directly used in after becoming the liquid manure of colorless and odorless.
(on the basis of the farm of 1000 pigs, daily available excrement solidity object 600kg is added 600kg and crushes straw
Stalk and 1.8L probiotics are uniformly mixed, and 1.2 tons of organic fertilizers can be obtained after building heap fermentation.)
Comparative example:
On the basis of being the farm of 1000 pigs by breeding stock, about 3 tons of excrement is generated daily, at conventional method
Reason:
1) it is separated by solid-liquid separation, if the undigested fiber of solidity owner, is used as compost；
2) liquid object is mainly pig urine, and pig urine generates biogas, biogas ingredient is mainly methane and titanium dioxide through anaerobic fermentation
Carbon, carbon dioxide can be directly discharged into atmosphere to the two after separation, and biogas can be used as fuel.
(on the basis of the farm of 1000 pigs, daily available excrement solidity object 600kg can be obtained after building heap fermentation
To about 600Kg organic fertilizer, biogas acquisition amount is related and unstable with temperature, is only capable of doing supplement fuel.).
Claims (8)
1. a kind of processing method of pig manure, which is characterized in that specifically comprise the following steps:
1) collecting dung: according to the scale of farm, the suitable hermetically sealed concrete manure pit of volume is built for collecting excrement simultaneously
Prevent stink from leaking, concrete manure pit is equipped with pressure reducing valve；
2) it is concentrated under reduced pressure: the excrement of collection being pumped into concentration tank by the pipeline of sealing, negative pressure is generated in concentration tank, and right
Concentration tank is heated, and the excrement in tank boils under negative pressure, generates water vapour, ammonia, hydrogen sulfide and other escaping gas,
By gas extraction into pond, stop concentration when excrement concentration is nearly completed in tank；
3) processing of condensate residue:
Solidity object after concentration is discharged from concentration tank bottom, be added agricultural waste material and probiotics build heap fermentation, be granulated after become
Organic fertilizer；
, to neutrality, the liquid manure of colorless and odorless will be become containing the water of ammonia and hydrogen sulfide adjustment pH value.
2. a kind of processing method of pig manure according to claim 1, it is characterised in that: according to farm described in step 1)
Scale, the suitable hermetically sealed concrete manure pit of construction volume is according to the every daily row of live pig that grows up for collecting excrement
Object is let out at 3 kilograms, on the basis of being the farm of 1000 pigs by breeding stock, generates 3 tons of excrement daily, building a volume is
5 cubic metres of hermetically sealed concrete manure pit.
3. a kind of processing method of pig manure according to claim 1, it is characterised in that: by the excrement of collection described in step 2)
The pipeline that will pass through sealing is pumped into concentration tank, negative pressure is generated in concentration tank, and heat to concentration tank, the excrement in tank
It boils under negative pressure, is that the excrement that will be collected is pumped into concentration tank by the pipeline of sealing, is being concentrated using water circulation vavuum pump
Negative pressure is generated in tank, concentration tank uses steam or electric heating, and concentration tank is furnished with blender, and negative pressure makes excrement boil at 60 DEG C.
4. a kind of processing method of pig manure according to claim 1, it is characterised in that: by gas extraction described in step 2)
Into pond, stop concentration when excrement concentration is nearly completed in tank, is that gas is directly pumped water circulation by water-circulating pump
Vacuum pump is provided in the pond of water, when excrement is concentrated into residue and there was only the 20% of former excrement amount in tank, i.e. concentration tank gas
Evaporation capacity reaches 80%, stops concentration.
5. a kind of processing method of pig manure according to claim 1, it is characterised in that: crop waste described in step 3)
Object discards species adaptation to local conditions, and based on the sugarcane leaf, straw, cornstalk that crush, the north is with the wheat stalk crushed in south
It is main.
6. a kind of processing method of pig manure according to claim 1, it is characterised in that: consolidating after concentration described in step 3)
Property object be discharged from concentration tank bottom, be added agricultural waste material and probiotics build heap fermentation, be granulated after become organic fertilizer, after being concentration
Solidity object be discharged from concentration tank bottom, agricultural waste material is added by the weight ratio of 1:1, and beneficial by the addition of 1L/ ton of ratio
Raw bacterium is uniformly mixed, and builds heap and ferments, and 55-65 DEG C of fermentation temperature, the time 3 months.
7. a kind of processing method of pig manure according to claim 1, it is characterised in that: probiotics described in step 3), by
Bacterial strain Bacillus subtilis, Bacillus amyloliquefaciens, Bacillus after culture
Licheniformis, Lactobacillus plantarum are formed according to the volume ratio of 2:2:1:1.
8. a kind of processing method of pig manure according to claim 1, it is characterised in that: ammonia will be contained described in step 3)
PH value is adjusted to neutrality with the water of hydrogen sulfide, is that citric acid is added into the water containing ammonia and hydrogen sulfide to adjust pH value to 7, is become
It applies fertilizer at fruits and vegetables plantation is directly used in after the liquid manure of colorless and odorless.
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Application publication date: 20190419 |