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 PDF

Info

Publication number
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
Authority
CN
China
Prior art keywords
excrement
pig house
new
pig
pit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811635993.4A
Other languages
Chinese (zh)
Inventor
王德汉
黄红辉
杨洁
罗子锋
曾维深
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
South China Agricultural University
Original Assignee
South China Agricultural University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by South China Agricultural University filed Critical South China Agricultural University
Priority to CN201811635993.4A priority Critical patent/CN109777842A/en
Publication of CN109777842A publication Critical patent/CN109777842A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/30Fuel from waste, e.g. synthetic alcohol or diesel

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

A kind of pig house recirculated water cleaning up excrement new method
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.
CN201811635993.4A 2018-12-29 2018-12-29 A kind of pig house recirculated water cleaning up excrement new method Pending CN109777842A (en)

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
CN201811635993.4A Pending CN109777842A (en) 2018-12-29 2018-12-29 A kind of pig house recirculated water cleaning up excrement new method

Country Status (1)

Country Link
CN (1) CN109777842A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
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

Citations (4)

* Cited by examiner, † Cited by third party
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Title
武华玉: "猪场废弃物资源化处理现状", 《畜牧与饲料科学》 *
王志荣: "能源环保型沼气工程在规模猪场排泄物治理中的应用", 《能源工程》 *

Cited By (1)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
CN106430562B (en) A kind of processing method of poultry discharged wastewater met the national standard
CN101709004B (en) Method for comprehensively treating livestock waste and utilizing resource
CN102964149B (en) Pollution abatement method for livestock and poultry farm
US8691094B2 (en) Method and system for treating domestic sewage and organic garbage
CN103172244B (en) Recycling treatment method of water-submerged manure in breeding industry
CN101475284B (en) Domestic sewage treatment process and apparatus
CN106565058A (en) Stockyard sewage treatment technology
Rao et al. Multi stage high rate biomethanation of poultry litter with self mixed anaerobic digester
CN103435154A (en) Method for recycling contaminants of large-scale livestock and poultry farm
CN101962244A (en) Livestock breeding wastewater nutrient pollution control and recycling process
CN206486407U (en) A kind of livestock breeding wastewater processing system
CN101817615A (en) Anaerobic-sequencing batch biofilm reactor-artificial wetland method for treating piggery wastewater
CN108892334A (en) A kind of centralized processing of animal waste utilizes system and method
AU2020100061A4 (en) Harmless Treatment System and Method for Livestock and Poultry Breeding Wastewater
CN104512985A (en) Piggery wastewater anaerobic digestion method for production of biogas
CN102133575A (en) Combined anaerobic pretreatment method for village-in-lake domestic sewage and organic waste
CN109777842A (en) A kind of pig house recirculated water cleaning up excrement new method
CN106007165B (en) A kind of scale fowl and livestock farm pollutant integration microbial method process flow
CN107381930A (en) Denitrification dephosphorization system of the heavy metal flocculation joint energy microalgae to biogas slurry of fermenting
CN208898709U (en) A kind of centralized processing of animal waste utilizes system
CN208440534U (en) Organic refuse treating system
CN205893016U (en) Aquaculture wastewater treatment device
CN104058558A (en) Method for recycling sewage of pig farm
CN205347142U (en) Aquaculture wastewater treatment system
CN107540160A (en) Cultivation wastewater purification handling process and its device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination