CN109777842A - A kind of pig house recirculated water cleaning up excrement new method - Google Patents
A kind of pig house recirculated water cleaning up excrement new method Download PDFInfo
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- CN109777842A CN109777842A CN201811635993.4A CN201811635993A CN109777842A CN 109777842 A CN109777842 A CN 109777842A CN 201811635993 A CN201811635993 A CN 201811635993A CN 109777842 A CN109777842 A CN 109777842A
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- excrement
- pig house
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000004140 cleaning Methods 0.000 title claims abstract description 19
- 210000003608 fece Anatomy 0.000 claims abstract description 32
- 239000010871 livestock manure Substances 0.000 claims abstract description 32
- 239000002002 slurry Substances 0.000 claims abstract description 20
- 239000006228 supernatant Substances 0.000 claims abstract description 19
- 230000020477 pH reduction Effects 0.000 claims abstract description 15
- 230000008569 process Effects 0.000 claims abstract description 12
- 230000007062 hydrolysis Effects 0.000 claims abstract description 11
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 11
- 210000002700 urine Anatomy 0.000 claims abstract description 10
- 230000029087 digestion Effects 0.000 claims abstract description 8
- 238000003860 storage Methods 0.000 claims abstract description 6
- 238000012545 processing Methods 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 241001071864 Lethrinus laticaudis Species 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 239000010802 sludge Substances 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims description 3
- 239000002699 waste material Substances 0.000 abstract description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 8
- 238000000855 fermentation Methods 0.000 description 7
- 230000004151 fermentation Effects 0.000 description 5
- 238000005273 aeration Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 241000282887 Suidae Species 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 244000144972 livestock Species 0.000 description 2
- 239000003895 organic fertilizer Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 235000015277 pork Nutrition 0.000 description 2
- 244000144977 poultry Species 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 description 1
- 239000010828 animal waste Substances 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000005446 dissolved organic matter Substances 0.000 description 1
- 238000005108 dry cleaning Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Housing For Livestock And Birds (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention belongs to Stock raising waste fields, disclose a kind of pig house recirculated water cleaning up excrement new method.Method includes the following steps: slatted floor is arranged in (1) pig house bottom surface, acidification is hydrolyzed in the bubble manure pit that the excrement and urine that pig generates are entered below pig house by slatted floor；(2) supernatant after hydrolysis acidification is discharged into black film methane-generating pit, passes through methanogen anaerobic digestion methane production；(3) black film methane-generating pit supernatant is discharged into aerobic biogas slurry pond to carry out biochemical treatment up to standard；(4) resulting water up to standard is discharged into ecological pond storage, a portion is back in bubble manure pit by water pump as process water, another part discharge.
Description
Technical field
The invention belongs to Stock raising waste fields, and in particular to a kind of pig house recirculated water cleaning up excrement new method.
Background technique
Currently, pig farm directlys adopt clear water more rinses pig house waste, therefore large amount of sewage bubble excrement can be generated.If directly using
Solid-liquid separating machine is separated by solid-liquid separation it, not only cost is higher and sewage in the still COD containing higher concentration, nitrogen phosphorus etc. cannot be abundant
It utilizes.
China is less about the patent of bubble excrement at present, is concentrated mainly on the improvement of bubble excrement device and technologic improvement.Patent
It (CN108484230A) is a kind of bubble manure fermentation tower, for being liquid fertilizer pig manure fermentation, but it is to the pig manure energy
Change；A kind of dismountable moving environment-friendly type pig house is used in patent (CN108633749A), is only applicable to peasant household of raising pigs on a small scale；Specially
Sharp (CN106746435A) is a kind of multifunctional ecological circular agriculture mode, including two pig farms, what a pig farm was taken
It is the mode of bubble excrement, what another pig farm was taken is the mode of dry cleaning up excrement, and capital cost is higher；Patent
(CN105309320A) special access hole is equipped at slatted floor, personnel convenient to overhaul, which enter in bubble manure pit, to overhaul
Or cleaning；Patent (CN103891622A) is to provide a kind of water-saving animal house drainage, and slurry scraper structure is easy to damage.
A kind of aquaculture bubble dropping source processing method is disclosed in patent (CN103172244A), by the natural pond behind natural pond processed
Liquid successively through include separation of solid and liquid, filtering, aeration stripping, fermentation processing after obtain Liquid organic fertilizer, by the sludge behind natural pond processed
Organic fertilizer successively is obtained after including filters pressing, fermentation, process flow is many and diverse；Patent (CN102690025A) need to be by animal wastes
Storage 1~2 month is impregnated in water, in long-term storage, is also easy to produce foul smell and pig is had an impact, and increase subsequent water outlet
Processing difficulty.
Traditional water rushes excrement or bubble excrement process spent water amount is larger, and the biogas slurry amount generated after anaerobic fermentation is big, if using
Biogas slurry returning to the field is handled naturally, then periphery is needed to have a large amount of farmlands to be digested.It is handled using pig house recirculated water cleaning up excrement new method
The waste that pig farm generates not only had made full use of pig manure to produce biogas, but also has saved water resource, was a kind of side easy to spread used
Method.
Summary of the invention
In order to overcome shortcoming and deficiency existing in the prior art, followed the primary purpose of the present invention is that providing a kind of pig house
Ring water cleaning up excrement new method；This method high treating effect, process conditions are simple, secondary pollution is few, high financial profit, and realize sewage
The Large-scale pig farm treatment for cow manure of zero-emission.
The object of the invention is achieved through the following technical solutions:
A kind of pig house recirculated water cleaning up excrement new method, comprising the following steps:
(1) slatted floor is arranged in pig house bottom surface, and the excrement and urine that pig generates are entered below pig house by slatted floor
Bubble manure pit acidification is hydrolyzed；
(2) supernatant after step (1) hydrolysis acidification is discharged into black film methane-generating pit, passes through methanogen anaerobic digestion
Produce biogas；
(3) the resulting black film methane-generating pit supernatant of step (2) is discharged into aerobic biogas slurry pond to carry out biochemical treatment up to standard；
(4) the resulting water up to standard of step (3) is discharged into ecological pond storage, a portion is by water pump as process water
It is back in bubble manure pit, another part discharge.
Step (1) described slatted floor is cement concrete plate, gap width 10mm, 18mm or 25mm.
When in the pig house being 7-9 kilograms of weight of piggy, the gap width of slatted floor is 10mm；When the pig house
In be 25-60 kilograms of weight of middle pig, the gap width of slatted floor is 18mm；When in the pig house being weight 61-100
Kilogram big pig, the gap width of slatted floor is 25mm.
Step (1) the bubble manure pit is to build in above the ground；Step (2) the black film methane-generating pit, step (3) are described good
Oxygen biogas slurry pond and step (4) described ecological pond are to build in below ground.
Step (1) the bubble manure pit depth is 1.5 meters, and excrement therein and urine depth are 1 meter；Excrement and urine into
Enter to after bubble manure pit, carries out aeration stirring, promote its hydrolysis acidification；Supernatant after hydrolysis acidification is with daily 0.4m2Amount
It is discharged into black film methane-generating pit.
The side of step (1) the bubble manure pit is equipped with negative pressure air exhauster, and the foul smell generated in pond is extracted to outside pig house
Processing.
Supernatant, is first drained by the mode that step (2) the black film methane-generating pit takes continuum micromeehanics to be discharged daily
Aerobic biogas slurry pond, then bubble manure pit supernatant is introduced into black film methane-generating pit and carries out anaerobic digestion.
The biogas that step (2) the black film methane-generating pit generates is for generating electricity.
Gas lift circulation activated sludge reactor is used in step (3) the aerobic biogas slurry pond, is equipped with dissolved oxygen and is monitored on-line
Device is discharged into ecological pond after water process (" Guangdong Province's livestock and poultry breeding industry pollutant emission standard ") up to standard out.
Compared with prior art, the present invention has the following advantages and beneficial effects:
(1) waste that pig farm is pre-processed by bubble excrement technique promotes the solubility in excrement to have by aeration stirring
Machine object hydrolysis acidification, enters in liquid from solid, handles convenient for subsequent anaerobic fermentation.
(2) by daily intake and drain, reduce the soaking time of bubble excrement, thus reduce pig house generation stench and
Subsequent processing difficulty.
(3) black film methane-generating pit only handles the supernatant of bubble manure pit, compares mixed fermentation, and biogas output improves 15%-
30%, and saved the anaerobic reactor volume of 50%-80%, and reduce separation of solid and liquid link, simplify operation process and
Facility reduces operation cost and cost of investment.
(4) methane-generating pit uses black film methane-generating pit, is suitble to most of terrain environments, capacity is big, and project cost is low, treatment effect
It is good, it is ensured that organic matter is by abundant anaerobic digestion, to reduce the load of subsequent Aerobic biological process.
(5) aerobic biogas slurry pond uses gas lift circulation flow reactor, and it is excellent can not only to efficiently use gas lift circulation flow reactor
Mass transfer passes oxygen performance, improves biogas slurry treatment effect, additionally it is possible to pass through the operational mode raising pair that the area Jiang Liu anoxic/up-flow area is aerobic
The adaptability of the biogas slurry treatment operating condition of different times, and provided in the same reactor for waste water and nitrification and denitrification mistake occurs
The condition of journey, to achieve the purpose that enhanced biological nitrogen removal.
(6) it after the standard water discharge of aerobic biogas slurry pond, is back in bubble manure pit as process water, not only reduces bubble manure pit
Hydraulic detention time, also reduce the secondary pollution risk to environment, have good environmental benefit.
Specific embodiment
Below with reference to embodiment, the present invention is described in further detail, and embodiments of the present invention are not limited thereto.
Embodiment 1
A kind of pig house recirculated water cleaning up excrement new method, comprising the following steps:
(1) slatted floor is arranged in pig house ground, and the excrement and urine that pig generates are entered below pig house by slatted floor
Bubble manure pit acidification is hydrolyzed；
(2) supernatant after step (1) hydrolysis acidification is discharged into black film methane-generating pit, passes through methanogen anaerobic digestion
Produce biogas；
(3) the resulting black film methane-generating pit supernatant of step (2) is discharged into aerobic biogas slurry pond to carry out biochemical treatment up to standard；
(4) the resulting water up to standard of step (3) is discharged into ecological pond storage, a portion is by water pump as process water
It is back in bubble manure pit, another part discharge.
Step (1) described slatted floor is cement concrete plate, gap width 10mm, 18mm or 25mm.Work as pig house
In be 7-9 kilograms of weight of piggy, the gap width of slatted floor is 10mm；When in pig house being 25-60 kilograms of weight
Middle pig, the gap width of slatted floor are 18mm；When in pig house being 61-100 kilograms of weight of big pig, the gap of slatted floor
Width is 25mm.
Step (1) the bubble manure pit is to build in above the ground；Step (2) the black film methane-generating pit, step (3) are described good
Oxygen biogas slurry pond and step (4) described ecological pond are to build in below ground.
Step (1) the bubble manure pit depth is 1.5 meters, and excrement therein and urine depth are 1 meter；Excrement and urine into
Enter to after bubble manure pit, carry out aeration stirring, promote its hydrolysis acidification, be transferred to dissolved organic matter in liquid phase from solid phase,
Reduce the pressure of subsequent processing；Supernatant after hydrolysis acidification is with daily 0.4m2Amount be discharged into black film methane-generating pit.
The side of step (1) the bubble manure pit is equipped with negative pressure air exhauster, and the foul smell generated in pond is extracted to outside pig house
Processing, reduces influence of the foul smell to pig growth and development and surrounding enviroment.
Supernatant, is first drained by the mode that step (2) the black film methane-generating pit takes continuum micromeehanics to be discharged daily
Aerobic biogas slurry pond, then bubble manure pit supernatant is introduced into black film methane-generating pit and carries out anaerobic digestion.Black film methane-generating pit have easily starting,
It the characteristics of at low cost, strong shock resistance, is run by continous way, it is degradable organic in the bubble excrement supernatant that can effectively degrade
Object.
The biogas that step (2) the black film methane-generating pit generates is for generating electricity.
Gas lift circulation activated sludge reactor is used in step (3) the aerobic biogas slurry pond, is equipped with dissolved oxygen and is monitored on-line
Device is discharged into ecological pond after water process (" Guangdong Province's livestock and poultry breeding industry pollutant emission standard ") up to standard out.
Using the above method to certain pork pig carry out pig house recirculated water cleaning up excrement, the pork pig has 1000 pigs, piggy (weight
7-9 kilograms) 300, middle pig (25-60 kilograms of weight) 400, big pig (61-100 kilograms of weight) 300.It is total to produce excrement amount daily
3.8t/d, collection rate 100%, amount of dry matter 0.684t/d, day dry matter input amount 0.684t/d produce biogas coefficient 300m3/ d,
Produce biogas number 205.2m daily3/ d designs yield 200m3/ d, can generate electricity 369.36kwh/d.Higher than conventional pig farm power generation 324kwh/
d。
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (9)
1. a kind of pig house recirculated water cleaning up excrement new method, it is characterised in that the following steps are included:
(1) slatted floor is arranged in pig house bottom surface, and the excrement and urine that pig generates enter the water below pig house by slatted floor
Acidification is hydrolyzed in bubble manure pit；
(2) supernatant after step (1) hydrolysis acidification is discharged into black film methane-generating pit, natural pond is produced by methanogen anaerobic digestion
Gas；
(3) the resulting black film methane-generating pit supernatant of step (2) is discharged into aerobic biogas slurry pond to carry out biochemical treatment up to standard；
(4) the resulting water up to standard of step (3) is discharged into ecological pond storage, a portion is flowed back by water pump as process water
Into bubble manure pit, another part discharge.
2. a kind of pig house recirculated water cleaning up excrement new method according to claim 1, it is characterised in that: step (1) described crack
Floor is cement concrete plate, gap width 10mm, 18mm or 25mm.
3. a kind of pig house recirculated water cleaning up excrement new method according to claim 2, it is characterised in that: when being in the pig house
7-9 kilograms of weight of piggy, the gap width of slatted floor are 10mm；When in the pig house being in 25-60 kilograms of weight
Pig, the gap width of slatted floor are 18mm；When in the pig house being 61-100 kilograms of weight of big pig, the seam of slatted floor
Gap width is 25mm.
4. a kind of pig house recirculated water cleaning up excrement new method according to claim 1, it is characterised in that: step (1) described bubble
Manure pit is to build in above the ground；Step (2) the black film methane-generating pit, step (3) the aerobic biogas slurry pond and step (4) described life
The state pool is to build in below ground.
5. a kind of pig house recirculated water cleaning up excrement new method according to claim 1, it is characterised in that: step (1) described bubble
Manure pit depth is 1.5 meters, and excrement therein and urine depth are 1 meter；After excrement and urine enter bubble manure pit, it is aerated
Stirring, promotes its hydrolysis acidification；Supernatant after hydrolysis acidification is with daily 0.4m2Amount be discharged into black film methane-generating pit.
6. a kind of pig house recirculated water cleaning up excrement new method according to claim 1, it is characterised in that: step (1) described bubble
The side of manure pit is equipped with negative pressure air exhauster, and the foul smell generated in pond is extracted to processing outside pig house.
7. a kind of pig house recirculated water cleaning up excrement new method according to claim 1, it is characterised in that: step (2) described black film
Supernatant is first drained into aerobic biogas slurry pond daily by the mode that methane-generating pit takes continuum micromeehanics to be discharged, then by bubble manure pit
Supernatant introduces black film methane-generating pit and carries out anaerobic digestion.
8. a kind of pig house recirculated water cleaning up excrement new method according to claim 1, it is characterised in that: step (2) described black film
The biogas that methane-generating pit generates is for generating electricity.
9. a kind of pig house recirculated water cleaning up excrement new method according to claim 1, it is characterised in that: step (3) is described aerobic
Gas lift circulation activated sludge reactor is used in biogas slurry pond, is equipped with dissolved oxygen on-Line Monitor Device, after water process is up to standard out, row
It is put into ecological pond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811635993.4A CN109777842A (en) | 2018-12-29 | 2018-12-29 | A kind of pig house recirculated water cleaning up excrement new method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811635993.4A CN109777842A (en) | 2018-12-29 | 2018-12-29 | A kind of pig house recirculated water cleaning up excrement new method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109777842A true CN109777842A (en) | 2019-05-21 |
Family
ID=66498827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201811635993.4A Pending CN109777842A (en) | 2018-12-29 | 2018-12-29 | A kind of pig house recirculated water cleaning up excrement new method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111268855A (en) * | 2020-01-15 | 2020-06-12 | 浙江亲水园生物科技有限公司 | Liquid fertilization treatment method for pig farm urine-soaked manure wastewater |
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| CN101709004A (en) * | 2009-12-07 | 2010-05-19 | 哈尔滨工业大学 | Method for comprehensively treating livestock waste and utilizing resource |
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| CN106565058A (en) * | 2016-11-03 | 2017-04-19 | 聊城职业技术学院 | Stockyard sewage treatment technology |
| CN107759017A (en) * | 2017-11-02 | 2018-03-06 | 荆门市齐笙养殖有限公司 | A kind for the treatment of for cow manure technique |
-
2018
- 2018-12-29 CN CN201811635993.4A patent/CN109777842A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101709004A (en) * | 2009-12-07 | 2010-05-19 | 哈尔滨工业大学 | Method for comprehensively treating livestock waste and utilizing resource |
| CN101863583A (en) * | 2010-04-21 | 2010-10-20 | 南昌大学 | Technology for treating piggery wastewater by methane tank, biofilm reactor and artificial wetland |
| CN106565058A (en) * | 2016-11-03 | 2017-04-19 | 聊城职业技术学院 | Stockyard sewage treatment technology |
| CN107759017A (en) * | 2017-11-02 | 2018-03-06 | 荆门市齐笙养殖有限公司 | A kind for the treatment of for cow manure technique |
Non-Patent Citations (2)
| Title |
|---|
| 武华玉: "猪场废弃物资源化处理现状", 《畜牧与饲料科学》 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111268855A (en) * | 2020-01-15 | 2020-06-12 | 浙江亲水园生物科技有限公司 | Liquid fertilization treatment method for pig farm urine-soaked manure wastewater |
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