CN102757271A - Forced-aeration composting system and method for synchronously storing nitrogen and phosphorous in livestock manure compost and reducing emission of greenhouse gas N2O - Google Patents
Forced-aeration composting system and method for synchronously storing nitrogen and phosphorous in livestock manure compost and reducing emission of greenhouse gas N2O Download PDFInfo
- Publication number
- CN102757271A CN102757271A CN2011101106936A CN201110110693A CN102757271A CN 102757271 A CN102757271 A CN 102757271A CN 2011101106936 A CN2011101106936 A CN 2011101106936A CN 201110110693 A CN201110110693 A CN 201110110693A CN 102757271 A CN102757271 A CN 102757271A
- Authority
- CN
- China
- Prior art keywords
- livestock
- composting
- temperature
- plenum
- compost reactor
- 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
Links
Images
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
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
Landscapes
- Fertilizers (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a forced-aeration livestock manure composting system and a method for synchronously storing nitrogen and phosphorous in livestock manure compost and reducing emission of greenhouse gas N2O. A forced-aeration composting reactor and a detachable gas static collecting cover are assembled to form the forced-aeration livestock manure composting system, and the gas static collecting cover is hermetically connected with the compost reactor. The purpose of synchronously integrating effects of nitrogen storage, phosphorous fixation and reduction of emission of the greenhouse gas N2O is achieved by means of adding modified industrial waste rich in metal salt in a livestock manure composting process in the method. The method includes modifying the industrial waste rich in the metal salt so as to increase usable metal ion content in the industrial waste. The forced-aeration livestock manure composting system and the method for treating livestock manure have the advantages that effects of nitrogen storage and phosphorous fixation can be achieved in the composting process, the quality of compost products is improved, the efficacy of reducing emission of the greenhouse gas N2O is realized, environmental hazards are reduced, and reutilization of the livestock manure is promoted.
Description
Technical field
The invention belongs to disposition of solid waste and resource technology field, particularly feces of livestock and poultry plenum compositing system and be used for realizing synchronously that livestock excrement composting nitrogen phosphorus is preserved and greenhouse gases N
2The O emission reduction method.
Background technology
Along with Economic development, growth in the living standard, China becomes maximum in the world meat, egg producing country.In recent years, China's intensification livestock and poultry farm rises in a large number, and by 2002,60% of the whole industry output value was the creation of intensive culture field.Simultaneously, a series of environmental problems such as atmosphere, water body and soil pollution of causing of intensive culture field discharging bulky stool toilet are also following.The aerobic compostization technology is soil ulmin as utilizing mikrobe to decompose organic solid castoff under certain condition; Make it to reach innoxious, resource utilization and method of stabilizing, the resource utilization that is widely used in nitrogen phosphorus nutrition element in the feces of livestock and poultry is recycled, and composting production also field can improve soil fertility (Wei Y.S.; Fan Y.B.; Wang M.J., et al.Composting and compost application in China.Resources, Conservation and Recycling; 2000,30 (4): 277～300).Yet the contained organonitrogen of feces of livestock and poultry is easy to be converted into ammonia by microbiological degradation in the composting process, in the nitration denitrification process, produces greenhouse gases N simultaneously
2(report of IPCC, N are organized in the international climate change of certificate to O
2The potentiality that heats of O is CO
2296 times, be one of six big greenhouse gases of controlling of regulation in the Kyoto Protocol), cause the nitrogen loss amount big, and the composting production farmland exists the phosphorus loss situation that causes because of storm runoff, initiation environmental problem when using.Along with the increase of feces of livestock and poultry quantity discharged (to 2007; Livestock and poultry breeding industry ight soil generation reaches 2.43 hundred million tons); The problem that nitrogen phosphorus is preserved in the compost treatment process receives extensive concern, mainly comprises the interpolation of use, chemicaladditives and microbiobacterial agent of regulation and control (like ventilation and mode, initial C/N, water ratio etc.), the amendment of various processing parameters.
Existing research to the water-soluble attitude phosphorus content of nitrogen preservation the reduction simultaneously is less.Usually carry out nitrogen phosphorus through the chemical reagent that adds magnesium salts or microcosmic salt and preserve, but do not consider greenhouse gases (N
2O) discharging.Therefore, from the organic useless admittedly recycling of minimizing environmental pollution and realization, the equivalent material of seeking chemical reagent, exploiting economy has triple effect unification (guarantor's nitrogen, solid phosphorus and greenhouse gases (N efficiently
2O) reduce discharging) the livestock excrement composting technology, for innoxious, the minimizing and the resource utilization of China's feces of livestock and poultry are explored a new way.
Summary of the invention
One of the object of the invention is to improve and improves organic solid castoff processing and resource technologies such as current feces of livestock and poultry, thereby preservation of nitrogen phosphorus and greenhouse gases N in the synchronous realization livestock excrement composting of having of a kind of economical and efficient are provided
2The plenum compositing system that O reduces discharging.
Two of the object of the invention is to adopt the use of the trade waste instead of chemical reagent that is rich in metal-salt, and utilizes the plenum compositing system of purpose one, thereby preservation of nitrogen phosphorus and greenhouse gases N in a kind of synchronous realization livestock excrement composting are provided
2The O emission reduction method.
The present invention is used for realizing synchronously that nitrogen phosphorus is preserved and greenhouse gases N in the livestock excrement composting
2The plenum compositing system that O reduces discharging is as shown in Figure 1; Form first plenum compost reactor by two independent parts; It two is and the static cover of gathering of the airtight dismountable gas that is connected of compost reactor; Comprise plenum compost reactor, air jacket, static cover, the NH of gathering of gas
3Thief hatch, N
2O thief hatch, temperature and humidity inspection appearance, humidity sensor, TP, the time relay, air boost pump, under meter, air compartment, first point for measuring temperature and second point for measuring temperature.
One perforation plate is divided into a container and is described compost reactor (being used to place mixture), is described air compartment down; Described air jacket (air jacket is used for the heat insulation effect of enhancing reactor) is installed in the outside of described compost reactor, has venting port at the top of described compost reactor; In described compost reactor, be provided with described first point for measuring temperature, described second point for measuring temperature and described humidity sensor; The temperature regulator of the built-in temperature sensor that is provided with at described first point for measuring temperature and the described second point for measuring temperature place all is connected with described temperature and humidity inspection appearance through lead with described humidity sensor.
The airtight static cover of gathering of a described gas that is equipped with on described compost reactor; Gas in the described compost reactor gets into the static cover of gathering of described airtight good gas through described venting port, and the static cover of gathering of gas is provided with described NH
3Thief hatch and described N
2The O thief hatch; Described gas is static gathers cover detachably.
One side of the described air compartment below described perforation plate is equipped with vent-pipe, and this vent-pipe is connected with the air outlet of described air boost pump via described under meter; In the bottom of described air compartment the percolate delivery line is installed.
The trip switch of described air boost pump is connected with the described time relay through lead; Air boost pump is by the state and the time of time relay control opening and closing, by the size of under meter control air flow, by the homogeneity of perforation plate control ventilation.
Ventilating pit on the described perforation plate is even laying; Described ventilating pit is equilateral triangle evenly to be laid, and porosity is 6%.Described perforation plate is mounted on the prop on the wall of container.
Described humidity sensor is arranged on the top of described first point for measuring temperature, measures the atmospheric moisture of compost material top in the said reactor drum, does not have directly with described compost material to contact.
Of the present inventionly utilize above-mentioned plenum compositing system, employing can realize synchronously that nitrogen phosphorus is preserved and greenhouse gases N in the livestock excrement composting
2The O emission reduction method:
In feces of livestock and poultry, add amendment; With the mass ratio that regulate to add C element and N element in the feces of livestock and poultry after the amendment (preferably making C element and the quality ratio of N element in the feces of livestock and poultry after the adding amendment is 20～30); And to make the water ratio that adds the compost material after the amendment be 55～65% (mass percents); Add the trade waste that is rich in metal-salt after modification is handled then, the material that mixes is delivered to preservation of nitrogen phosphorus and greenhouse gases N in the said synchronous realization livestock excrement composting through material-transporting system
2(said system is as shown in Figure 1) carries out composting in the compost reactor in the plenum compositing system that O reduces discharging; The heap body that is formed by above-mentioned windrow in compost reactor inner (being respectively the center and the above 10cm place, distance heap body bottom of heap body) is placed with the hygrosensor of built-in temperature sensor; And above the heap body, place humidity sensor, through the changing conditions of humidity in whole composting process of temperature and humidity inspection controller monitoring heap temperature and heap body top; The plenum mode of composting process employing time feedback is carried out intermittent aeration to air compartment, and the air that the gets into air compartment orifice plate that wears long evenly passes through windrow; The N that composting process produces
2O and NH
3Venting port through the compost reactor top gets into airtight static the collection in the cover of gas that is installed in above the compost reactor, and through the static N that gathers on the cover of gas
2O thief hatch and NH
3Thief hatch is collected.The method of sampling is the static chamber null readings.
It is to be that the trade waste (comprising bauxite waste material red mud and/or refractory materials forsterite etc.) that being rich in of 0.15～1mm is mainly metals ions such as magnesium, iron, aluminium and calcium is soaked in and carries out acidification (sulphuric acid soln or other acidic solution) in the acidic solution with particle diameter that the modification of the described trade waste that is rich in metal-salt is handled; The general span of control of pH value that obtains soaking the suspension liquid that the trade waste that is rich in magnesium, iron, aluminium and calcium metals ion is arranged after the processing is confirmed according to the composting process demand between 5～7.
The trade waste that be rich in metal-salt of described adding after modification is handled preferably accounts for 15～30% amount adding of total nitrogen (mole) in the feces of livestock and poultry with the integral molar quantity that adds the major metal ion (metals ions such as magnesium, iron, aluminium and calcium) in the described metal-salt.
Described heap temperature is forced control, and the temperature of composting process is passed through nature intensification, high temperature, cooling (afterwards becoming thoroughly decomposed) stage successively, and the pliotherm period temperature reaches more than 50 ℃.
The plenum mode of described employing time feedback is carried out intermittent aeration to air compartment, is by the time of the time relay through the open and close of lead control air topping-up pump, controls thus to windrow and ventilates and oxygen supply.
The volume ratio of described feces of livestock and poultry and amendment is 1: 1～1: 3.
Described feces of livestock and poultry is the solid feces of livestock and poultry, comprises pig manure, chicken manure, cow dung, sheep excrement or any mixture between them etc.
Described amendment is agricultural crop straw, the litter after pulverizing after pulverizing, corn cob, rice husk, wood chip, mushroom residue, furfural dregs or any mixture between them etc. after pulverizing.
The present invention is in livestock excrement composting; Through adding the trade waste of handling through modification that is rich in metal-salt; Utilize nitrogen in metals ion such as magnesium, iron, aluminium and calcium in the trade waste and the windrow, phosphorus generation chemical reaction, physical adsorption etc. and biological action simultaneously, the form that preserve nitrogen element in the feces of livestock and poultry, changes phosphorus also reduces N
2The discharging of O.Adopt the trade waste instead of pure chemical agent metal-salt that is rich in metals ion in the method for the invention, not only realized the utilization again of trade waste, and can reduce the use of chemical agent, thereby reduced Financial cost.After method of the present invention is handled, both preserved the nitrogen phosphorus nutrition element in the livestock excrement composting, reduced greenhouse gases (N simultaneously again
2O) discharging has improved the quality of livestock excrement composting product.The static cap assembly of gathering of the gas of the compost reactor among the present invention is easy to realize the centralized collection processing to institute's emission gases (comprising greenhouse gases, foul smell etc.), reduces the environmental hazard risk.System and method of the present invention satisfies multinomial requirements such as floor space is little, the treatment time is short, environmental influence is little, can improve that organic solid castoff such as feces of livestock and poultry is handled and resource technology in the deficiency that exists, have economy, environmental friendliness, multi-purpose advantage.
Description of drawings
Fig. 1. preservation and the N that realizes nitrogen phosphoric in the livestock excrement composting simultaneously of the present invention
2The compositing system synoptic diagram that O reduces discharging.
Fig. 2. the variation of heap temperature and envrionment temperature in the pig manure process of the embodiment of the invention 1.
Fig. 3. the variation of water ratio in the pig manure process of the embodiment of the invention 1.
Fig. 4. N in the pig manure process of the embodiment of the invention 1
2O accumulative total quantity discharged reaches with N
2The shared per-cent of N of O form loss.
Fig. 5. NH in the pig manure process of the embodiment of the invention 1
3The accumulative total quantity discharged reaches with NH
3The shared per-cent of N of form loss.
Fig. 6. the variation of total phosphorus and orthophosphoric acid salt in the pig manure process of the embodiment of the invention 1.
Reference numeral
1. static collection of compost reactor 2. air jackets 3. gases covered
4-1.NH
3Thief hatch 4-2.N
2O thief hatch 5. temperature and humidity inspection appearance
6. humidity sensor 7. TPs 8. time relays
9. air boost pump 10. under meters 11. air compartments
A. point for measuring temperature b. point for measuring temperature
Embodiment
See also the plenum compost reactor that pig manure adopted of Fig. 1, comprise compost reactor 1, air jacket 2, static cover 3, the NH of gathering of gas
3Thief hatch 4-1, N
2O thief hatch 4-2, temperature and humidity inspection appearance 5, humidity sensor 6, TP 7, the time relay 8, air boost pump 9, under meter 10, air compartment 11, point for measuring temperature a and point for measuring temperature b;
One evenly is laid with the perforation plate of ventilating pit, and (ventilating pit on the described perforation plate is equilateral triangle and evenly lays; Porosity is 6%) right cylinder is described that it is described compost reactor 1 (useful volume 31.8L that device is divided into; Tubular aspect ratio is 1.17); Be down described air compartment 11, and described perforation plate is mounted on the prop on the wall of container; In the outside of described compost reactor described air jacket 2 is installed, the top has venting port; In described compost reactor, be provided with described point for measuring temperature a and described point for measuring temperature b, and also be provided with humidity sensor 6 (JSL-6ATD) in the described reactor drum above point for measuring temperature a; The temperature regulator 7 of the built-in temperature sensor (JWB/P/C) that is provided with at point for measuring temperature a and point for measuring temperature b place and described humidity sensor 6 are all through lead and described temperature and humidity inspection appearance 5 (KSL/D-04RP2V0B1; The Kunlun, Beijing seashore company) is connected, is used for measuring the windrow temperature that forms by feces of livestock and poultry and amendment and the humidity of heap body top in the compost reactor;
The airtight described gas static state collection cover 3 (volume 30L, detachable) that is equipped with on described compost reactor 1, the static collection of gas is covered 3 and is provided with described NH
3Thief hatch 4-1 and described N
2O thief hatch 4-2;
One side of the described air compartment below described perforation plate is equipped with vent-pipe, and this vent-pipe is connected with the air outlet of described air boost pump via described under meter 10; In the bottom of described air compartment the percolate delivery line is installed;
The trip switch of described air boost pump 9 is connected with the described time relay 8 through lead; Air boost pump is by the state and the time of time relay control opening and closing, by the size of under meter 10 control air flows, by the homogeneity of perforation plate control ventilation.
Utilize above-mentioned plenum compositing system, employing can realize synchronously that nitrogen phosphorus is preserved and greenhouse gases N in the livestock excrement composting
2The O emission reduction method is carried out pig manure, is used for preserving the nitrogen phosphoric and the GHG emissions mitigation N of pig manure process
2O.In the pig manure process, the plenum mode of compost reactor employing time feedback is carried out intermittent aeration to air compartment, by the state and the time of the opening and closing of the time relay 8 control air topping-up pumps; Size by under meter 10 control ventilations.
Used pig manure is from the Beijing suburb pig farm, and amendment adopts the wood chip of Beijing suburb wood-working factory.In pig manure, adding above-mentioned wood chip is 20～30 with the C element of regulating in the pig manure that adds behind the wood chip with the quality ratio of N element, and to make the water ratio of the pig manure behind the adding wood chip be 55～65% (mass percents); With being divided into 3 heaps after wood chip and the pig manure mixing (volume ratio of pig manure and wood chip is 1: 1～1: 3) evenly; Add (the described modification: be to be that the bauxite waste material red mud that is rich in metals ions such as magnesium, iron, aluminium and calcium of 0.15～1mm is soaked in and carries out acidification in the sulphuric acid soln of modified bauxite waste material red mud in a copy of it windrow with particle diameter; PH value until the suspension liquid of the bauxite waste material red mud that soaks with sulfuric acid reduces to 5.0), place the R1 compost reactor then; Add (the described modification: be to be that the refractory materials forsterite that is rich in metals ions such as magnesium, iron, aluminium and calcium of 0.15～1mm is soaked in and carries out acidification in the sulphuric acid soln of modification refractory materials forsterite in a windrow with particle diameter; PH value until the suspension liquid of the refractory materials forsterite that soaks with sulfuric acid reduces to 7.0), place the R2 compost reactor then; The 3rd part of windrow do not add any metal-salt and places the R3 compost reactor as control group.
The bauxite waste material red mud after the modification and the metallic cation content of the refractory materials forsterite after the modification content before the modification.The trade waste that be rich in metal-salt of described adding after modification is handled preferably accounts for 20% amount adding of total nitrogen (mole) in the feces of livestock and poultry with the integral molar quantity that adds the major metal ion (metals ions such as magnesium, iron, aluminium and calcium) in the described metal-salt.
3 reaction systems of pig manure process are the plenum mode of employing time feedback all, and the time that ventilation/closing condition is set is 15s (ventilation)/10min (closing), and ventilation is set at 0.5L min
-1Kg
-1OM, according to organic content in the windrow, the native system ventilation is set at 1.77L.min
-1Composting process divides two stages, be respectively 21 days intensification+During High-Temperature Composting phases with after become thoroughly decomposed 30 days phases.
Composting process carries out the record (probe of 2 TPs is surveyed the temperature at the heap body center that formed by above-mentioned windrow and above 10cm place, distance heap body bottom respectively) of temperature and piles record, every interval 2 hours or 4 hour records, 1 secondary data of humidity above the body.
The N that composting process produces
2O and NH
3Venting port through the compost reactor top gets into airtight static the collection in the cover of gas that is installed in above the compost reactor, utilizes the static cover of gathering of gas, adopts the static chamber null readings regularly through the static N that gathers on the cover of gas
2O thief hatch and NH
3Thief hatch is gathered the NH of composting process discharging
3And N
2The O sample is also analyzed.
Result of study shows, the modification forsterite that adopts this compositing system and add pH=7.0 carries out pig manure to be handled, and helps preserving nitrogen and GHG emissions mitigation, N
2N that O causes loss is merely 0.65%, obviously be superior to adding the pH=5.0 changed red mud 8.92% with 11.22% of contrast.Add the RI compositing system of changed red mud, the ammonia emission amount is less than the R2 compositing system and contrast R3 compositing system that adds forsterite.Temperature (Fig. 2) influences the discharging of ammonia, and this is presented as compost hot stage ammonia emission amount high (Fig. 5).And N
2The early stage that the remarkable discharging of O mainly appears at composting process with after become thoroughly decomposed the phase (Fig. 4), and after the stage Yin Wendu that becomes thoroughly decomposed lower, quantity discharged is particularly evident, shows as the surge of quantity discharged.In the R1 compositing system that adds changed red mud and the R2 compositing system that adds the modification forsterite with NH
3And N
2The loss of O gas form is all compared according to the R3 compositing system few, accounts for 11.07% and 6.38% of TKN respectively.In addition, the interpolation of these 2 kinds of modified metal salt all helps reducing the content of water-soluble orthophosphoric acid salt.The result sees Fig. 2～6.
The corresponding compositing system that adds changed red mud of R1 among Fig. 2～Fig. 6, the corresponding compositing system that adds the modification forsterite of R2, the contrast compositing system that the R3 correspondence is not added.
Claims (10)
1. realize that synchronously nitrogen phosphorus is preserved and greenhouse gases N in the livestock excrement composting for one kind
2The plenum compositing system that O reduces discharging comprises plenum compost reactor, air jacket, static cover, the NH of gathering of gas
3Thief hatch, N
2O thief hatch, temperature and humidity inspection appearance, humidity sensor, TP, the time relay, air boost pump, under meter, air compartment, first point for measuring temperature and second point for measuring temperature; It is characterized in that:
One perforation plate is divided into a container and is described compost reactor, is described air compartment down; In the outside of described compost reactor described air jacket is installed, has venting port at the top of described compost reactor; In described compost reactor, be provided with described first point for measuring temperature, described second point for measuring temperature and described humidity sensor; The temperature regulator of the built-in temperature sensor that is provided with at described first point for measuring temperature and the described second point for measuring temperature place all is connected with described temperature and humidity inspection appearance through lead with described humidity sensor;
The airtight static cover of gathering of a described gas that is equipped with on described compost reactor, the static cover of gathering of gas is provided with described NH
3Thief hatch and described N
2The O thief hatch;
One side of the described air compartment below described perforation plate is equipped with vent-pipe, and this vent-pipe is connected with the air outlet of described air boost pump via described under meter;
The trip switch of described air boost pump is connected with the described time relay through lead.
2. nitrogen phosphorus is preserved and greenhouse gases N in the synchronous realization livestock excrement composting according to claim 1
2The plenum compositing system that O reduces discharging, it is characterized in that: the ventilating pit on the described perforation plate is equilateral triangle evenly to be laid, and porosity is 6%.
3. nitrogen phosphorus is preserved and greenhouse gases N in the synchronous realization livestock excrement composting according to claim 1
2The plenum compositing system that O reduces discharging is characterized in that: described gas is static gathers cover detachably.
4. nitrogen phosphorus is preserved and greenhouse gases N in the synchronous realization livestock excrement composting according to claim 1
2The plenum compositing system that O reduces discharging, it is characterized in that: the bottom of described air compartment is equipped with the percolate delivery line.
5. nitrogen phosphorus is preserved and greenhouse gases N in the synchronous realization livestock excrement composting according to claim 1
2The plenum compositing system that O reduces discharging, it is characterized in that: described humidity sensor is arranged on the top of described first point for measuring temperature.
6. one kind is utilized preservation of nitrogen phosphorus and greenhouse gases N in any described synchronous realization livestock excrement composting of claim 1～5
2The O emission reduction method is characterized in that:
In feces of livestock and poultry, add amendment, regulate adding the C element and the mass ratio of N element in the feces of livestock and poultry after the amendment, and to make the water ratio of the feces of livestock and poultry after the adding amendment be 55～65% (mass percents); Add the trade waste that is rich in metal-salt after modification is handled then, the material that mixes is delivered to preservation of nitrogen phosphorus and greenhouse gases N in the said synchronous realization livestock excrement composting through material-transporting system
2Carry out composting in the compost reactor in the plenum compositing system that O reduces discharging; The heap body inside that is formed by above-mentioned windrow in compost reactor is placed with the hygrosensor of built-in temperature sensor; And above the heap body, place humidity sensor, through the changing conditions of humidity in whole composting process of temperature and humidity inspection controller monitoring heap temperature and heap body top; The plenum mode of composting process employing time feedback, the opening and closing through the control air topping-up pump make air ventilate to windrow through perforation plate; The N that composting process produces
2O and NH
3Venting port through the compost reactor top gets into airtight static the collection in the cover of gas that is installed in above the compost reactor, and through the static N that gathers on the cover of gas
2O thief hatch and NH
3Thief hatch is collected;
The trade waste that be rich in metal-salt of described adding after modification is handled is 15～30% the amount adding that accounts for total nitrogen (mole) in the feces of livestock and poultry with the integral molar quantity that adds magnesium, iron, aluminium and calcium metals ion in the described metal-salt.
7. method according to claim 6; It is characterized in that: it is to be that the trade waste that is rich in magnesium, iron, aluminium and calcium metals ion of 0.15～1mm is soaked in and carries out acidification in the acidic solution with particle diameter that the modification of the described trade waste that is rich in metal-salt is handled, handle to the pH value span of control of soaking the suspension liquid that the trade waste that is rich in magnesium, iron, aluminium and calcium metals ion is arranged between 5～7.
8. according to claim 6 or 7 described methods, it is characterized in that: the described trade waste that is rich in metal-salt is bauxite waste material red mud and/or refractory materials forsterite.
9. method according to claim 6 is characterized in that: the C element in the feces of livestock and poultry after the described adding amendment and the quality ratio of N element are 20～30.
10. according to claim 6 or 7 described methods, it is characterized in that: described feces of livestock and poultry comprises pig manure, chicken manure, cow dung, sheep excrement, horsehit or any mixture between them;
Described amendment is agricultural crop straw, the litter after pulverizing after pulverizing, corn cob, rice husk, wood chip, mushroom residue, furfural dregs or any mixture between them after pulverizing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101106936A CN102757271A (en) | 2011-04-29 | 2011-04-29 | Forced-aeration composting system and method for synchronously storing nitrogen and phosphorous in livestock manure compost and reducing emission of greenhouse gas N2O |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101106936A CN102757271A (en) | 2011-04-29 | 2011-04-29 | Forced-aeration composting system and method for synchronously storing nitrogen and phosphorous in livestock manure compost and reducing emission of greenhouse gas N2O |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102757271A true CN102757271A (en) | 2012-10-31 |
Family
ID=47051956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101106936A Pending CN102757271A (en) | 2011-04-29 | 2011-04-29 | Forced-aeration composting system and method for synchronously storing nitrogen and phosphorous in livestock manure compost and reducing emission of greenhouse gas N2O |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102757271A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103708868A (en) * | 2014-01-09 | 2014-04-09 | 中国科学院生态环境研究中心 | Aerobic composting device |
| CN104261909A (en) * | 2014-09-04 | 2015-01-07 | 林文罗 | Preparation method of bio-organic fertilizer |
| CN105037006A (en) * | 2015-08-30 | 2015-11-11 | 常州思宇环保材料科技有限公司 | Method for preparing efficient compound fertilizer for fruit tree by means of red mud |
| CN106699464A (en) * | 2017-01-11 | 2017-05-24 | 广东省农业科学院农业资源与环境研究所 | Bioorganic fertilizer of magnesium process desulphurization slag, and preparation method thereof |
| CN109400269A (en) * | 2018-12-31 | 2019-03-01 | 福建省农业科学院土壤肥料研究所 | A method of organic fertilizer is produced using fowl and animal excrement |
| CN109682714A (en) * | 2019-02-02 | 2019-04-26 | 农业部规划设计研究院 | A kind of heap body measure of resistance device and resistance coefficient acquisition methods |
| CN110981579A (en) * | 2019-12-24 | 2020-04-10 | 泉州南京大学环保产业研究院 | Method for preparing organic fertilizer by combining anaerobic fermentation of red mud |
| CN111362755A (en) * | 2020-05-09 | 2020-07-03 | 胡玉青 | Manure composition containing red mud |
| CN111410585A (en) * | 2020-05-21 | 2020-07-14 | 齐鲁工业大学 | Livestock and poultry manure composite phosphate furfural residue organic fertilizer and preparation method thereof |
| CN114149279A (en) * | 2021-11-16 | 2022-03-08 | 泉州南京大学环保产业研究院 | Method for comprehensively treating oyster shells based on anaerobic digestion |
| CN115057735A (en) * | 2022-06-16 | 2022-09-16 | 西安智同天地环境工程有限公司 | Nitrogen-preserving and phosphorus-fixing composting method and equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101565333A (en) * | 2008-04-23 | 2009-10-28 | 中国科学院生态环境研究中心 | System and method for preserving nitrogen and phosphorous and reducing emission of ammonia gas during composting of livestock and poultry manure |
| CN101928163A (en) * | 2009-06-19 | 2010-12-29 | 中国科学院生态环境研究中心 | Controlled composting system for removing teracycline antibiotic residues from livestock manures |
-
2011
- 2011-04-29 CN CN2011101106936A patent/CN102757271A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101565333A (en) * | 2008-04-23 | 2009-10-28 | 中国科学院生态环境研究中心 | System and method for preserving nitrogen and phosphorous and reducing emission of ammonia gas during composting of livestock and poultry manure |
| CN101928163A (en) * | 2009-06-19 | 2010-12-29 | 中国科学院生态环境研究中心 | Controlled composting system for removing teracycline antibiotic residues from livestock manures |
Non-Patent Citations (2)
| Title |
|---|
| 曾小岚等: "不同改性金属盐对猪粪堆肥过程氮磷保存的影响", 《环境科学》, vol. 31, no. 8, 15 August 2010 (2010-08-15), pages 1959 - 1965 * |
| 郑嘉熹等: "猪粪好氧堆肥过程的氮磷保存与温室气体（N2O）减排", 《中国生态学会微生物生态专业委员会2010年年会暨国际研讨会》, 1 August 2010 (2010-08-01), pages 187 - 194 * |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103708868A (en) * | 2014-01-09 | 2014-04-09 | 中国科学院生态环境研究中心 | Aerobic composting device |
| CN104261909A (en) * | 2014-09-04 | 2015-01-07 | 林文罗 | Preparation method of bio-organic fertilizer |
| CN105037006A (en) * | 2015-08-30 | 2015-11-11 | 常州思宇环保材料科技有限公司 | Method for preparing efficient compound fertilizer for fruit tree by means of red mud |
| CN105037006B (en) * | 2015-08-30 | 2018-07-24 | 安徽儒商生物科技有限公司 | A method of preparing fruit tree efficient compound fertilizer using red mud |
| CN106699464B (en) * | 2017-01-11 | 2020-03-31 | 广东省农业科学院农业资源与环境研究所 | Bio-organic fertilizer containing magnesium-method desulfurization slag and preparation method thereof |
| CN106699464A (en) * | 2017-01-11 | 2017-05-24 | 广东省农业科学院农业资源与环境研究所 | Bioorganic fertilizer of magnesium process desulphurization slag, and preparation method thereof |
| CN109400269A (en) * | 2018-12-31 | 2019-03-01 | 福建省农业科学院土壤肥料研究所 | A method of organic fertilizer is produced using fowl and animal excrement |
| CN109682714A (en) * | 2019-02-02 | 2019-04-26 | 农业部规划设计研究院 | A kind of heap body measure of resistance device and resistance coefficient acquisition methods |
| CN109682714B (en) * | 2019-02-02 | 2023-11-10 | 农业部规划设计研究院 | Pile body resistance measuring device and resistance coefficient obtaining method |
| CN110981579A (en) * | 2019-12-24 | 2020-04-10 | 泉州南京大学环保产业研究院 | Method for preparing organic fertilizer by combining anaerobic fermentation of red mud |
| CN111362755A (en) * | 2020-05-09 | 2020-07-03 | 胡玉青 | Manure composition containing red mud |
| CN111410585A (en) * | 2020-05-21 | 2020-07-14 | 齐鲁工业大学 | Livestock and poultry manure composite phosphate furfural residue organic fertilizer and preparation method thereof |
| CN114149279A (en) * | 2021-11-16 | 2022-03-08 | 泉州南京大学环保产业研究院 | Method for comprehensively treating oyster shells based on anaerobic digestion |
| CN115057735A (en) * | 2022-06-16 | 2022-09-16 | 西安智同天地环境工程有限公司 | Nitrogen-preserving and phosphorus-fixing composting method and equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102757271A (en) | Forced-aeration composting system and method for synchronously storing nitrogen and phosphorous in livestock manure compost and reducing emission of greenhouse gas N2O | |
| Petersen et al. | Manure management for greenhouse gas mitigation | |
| CN101565333B (en) | System and method for preserving nitrogen and phosphorous and reducing emission of ammonia gas during composting of livestock and poultry manure | |
| Michel et al. | The effect of biogas digestion on the environmental impact and energy balances in organic cropping systems using the life-cycle assessment methodology | |
| CN101928163B (en) | Controlled composting system for removing teracycline antibiotic residues from livestock manures | |
| Ma et al. | Effects of oxygen levels on maturity, humification, and odor emissions during chicken manure composting | |
| CN103641524A (en) | Method for treating garbage, sludge or excrement by earthworms and biological organic fertilizer | |
| CN103304281A (en) | Fast organic waste recycling hot enzyme aerobic treatment technology | |
| Misselbrook et al. | Opportunities for reducing environmental emissions from forage-based dairy farms | |
| Hong et al. | High rapid composting of dairy cattle manure with crop and forest residues | |
| CN102617206A (en) | Setting method for organic fertilizer production workshops and production method for organic fertilizer | |
| CN105104742A (en) | Method for integrated utilization of agricultural waste resources | |
| KR20150001552A (en) | Method for composting of organic wastes | |
| CN108794113A (en) | A kind of reed fermentation organic fertilizer and preparation method thereof | |
| Kuznetsov et al. | Operator model to control process of obtaining vermicompost | |
| Ekinci et al. | Effects of initial C/N ratio on organic matter degradation of composting of rose oil processing solid wastes | |
| CN206751677U (en) | A kind of biodynamic agriculture compost fermentation pond | |
| RU2423826C2 (en) | Complex of waste-free poultry farming and swine breeding with own production of fodders and energy | |
| Liao et al. | Research progress on resource utilization of livestock and poultry manure | |
| Ratnawati et al. | Slaughter house solid waste management in Indonesia | |
| Kowalczyk-Juśko et al. | Reduction of greenhouse gas emissions by replacing fertilizers with digestate | |
| Mohan et al. | Addressing the challenges of ammonia loss from poultry droppings through indigenous carbon wastes | |
| CN103193530A (en) | Method for producing labile phosphorus organic fertilizer by using pig manure | |
| CN105622189A (en) | Method for carrying out compost deodorization and producing high nitrogen content organic fertilizer by using composting reactor | |
| WO2012141429A2 (en) | Method and facility for producing electricity and compost by fermenting livestock excrement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121031 |