CN105272397A - Fertilizer preparation apparatus and method - Google Patents
Fertilizer preparation apparatus and method Download PDFInfo
- Publication number
- CN105272397A CN105272397A CN201510659550.9A CN201510659550A CN105272397A CN 105272397 A CN105272397 A CN 105272397A CN 201510659550 A CN201510659550 A CN 201510659550A CN 105272397 A CN105272397 A CN 105272397A
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- fertilizer
- liquid
- natural pond
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- 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
- 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
-
- 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
Abstract
The invention discloses a fertilizer preparation apparatus and a method, and belongs to the field of ecological agriculture. The fertilizer preparation method comprises the following steps: performing settlement, homogenization processing and filtering on collected liquid dung; performing anaerobic fermentation on filtered liquid dung in a continuous stirred anaerobic digestion reactor, so as to obtain a solid-liquid mixture; and performing homogenization processing on the solid-liquid mixture, and then performing solid-liquid separation, so as to obtain a biogas slurry and a solid organic fertilizer, and performing tower type filtering on the biogas slurry and performing separation fermentation, so as to obtain a biogas-slurry fertilizer. The method is capable of preventing a drip irrigation zone from being blocked, and possesses the low-cost advantage.
Description
Technical field
The present invention relates to field of ecological agricultural, particularly relate to a kind of preparation facilities and method thereof of fertilizer.
Background technology
Containing the abundant nutritive element such as nitrogen, phosphorus, potassium, sodium, calcium in the fertilizer of natural pond.Except containing except mentioned component in the slag of natural pond, also containing organic matter, humic acids etc.Total nitrogen content in the fertilizer of natural pond is made compost than heap and is improved 40-60%, and full phosphorus makes compost high 40-50% than heap, and full potassium makes compost high 80-90% than heap, and crop utilization rate is made compost than heap and improved 10-20%.Biogas liquid manure (natural pond liquid), accounts for about 88% of fertile total amount; Two is solid residue (natural pond slags), accounts for about 12% of fertile total amount.Natural pond liquid, containing nutritive elements such as available nitrogen, phosphorus, potassium, also contains the trace element such as zinc, iron.According to surveying and determination, be 0.062%-0.11% containing full nitrogen, ammonium nitrogen is 200-600 mg/kg, rapid available phosphorus 20-90 mg/kg.Available potassium 400-1100 mg/kg.Therefore, the quick-acting of natural pond liquid is very strong, and Nutrient availability is high, the rapid utilization absorbed by crops of energy, is a kind of polynary quick-acting compound manure.
A lot of for the research of natural pond fertilizer at present, main employing anaerobically fermenting, in livestock and poultry cultivation industry dropping source processing and utilizing, applying more is full mixed anaerobic digestion reactor (CSTR), upflow solids reactor (USR) and up-flow anaerobic sludge blanket (UASB).(1) full mixed anaerobic digestion reactor (CSTR): full mixed anaerobic digestion reactor (CSTR) process characteristic is not strict with suspended substance (SS) concentration in excrement dirt, and use range is wide.It adopts in marsh-gas fermentation tank stirs and adds temperature technique, and this is the important technological breakthrough of of marsh gas fermentation process.Stir and heating, biogas fermentation speed is improved greatly, and therefore this reactor is also referred to as high speed marsh-gas fermentation tank.Be characterized in: solids concn is high, TS8% ~ 12%, swine manure wastewater can be made all to carry out biogas fermentation process.Advantage is that treatment capacity is large, and produce biogas many, be convenient to management, easily start, working cost is low.Generally be applicable to produce biogas for master, have the area using Liquid organic fertilizer custom.Because this technique suitable treatment contains the high livestock and poultry feces of suspended substance (SS) and organic waste, have the advantage that other efficient methane zymotechniques are incomparable, Europe waits the area of biogas engineering prosperity to widely use now.(2) upflow solids reactor (USR): upflow solids reactor (USR) is that a kind of structure is simple, is applicable to the reactor of higher suspension solid material.Raw material enters digestive organ from bottom water distribution system, and when relying on the lifting power of charging and aerogenesis upwards to flow through the Sludge Bed containing high density anaerobion by certain speed, organism is able to decomposing and fermenting, and produces biogas.Indigested biomass solid particle and methane fermentating microorganism rely on natural subsidence to be stranded in digestive organ, and supernatant liquor overflows from digestive organ top.Which advantage is that processing efficiency is high, and operational management is simple, and shortcoming requires high to the uniform property of charging, and need strengthening to stir in fermenting process, pre-processing device has high input.(3) up-flow anaerobic sludge blanket (UASB): pending waste water is introduced into the bottom of UASB reactor, upwards flow through the Sludge Bed be made up of cotton-shaped or particulate state anaerobic sludge, contact with mud along with sewage and anaerobic reaction occurs, producing the disturbance that biogas causes Sludge Bed.The biogas produced in Sludge Bed some be attached on mud granule, free bubble and the bubble be attached on mud granule rise to the top of reactor.Mud granule rises and strikes the bottom of triphase separator baffle plate, and this causes the bubble of attachment to discharge; Degassed mud granule precipitation gets back to the surface of sludge blanket.Biogas under free state and the gas discharged by mud granule are collected in the collection chamber of triphase separator cone top part.Comprise some remaining solidss in liquid and biological particles enters in the settling region of triphase separator, remaining solid thing and biological particles are separated and get back to sludge blanket by the cone-plate gap of triphase separator from liquid.
The feature of UASB reactor is to maintain higher sludge concentration, mud mud age (more than 30 days), and higher water inlet volumetric loading rate, improves the processing power of anaerobic reactor unit volume.But the fecal sewage very high for solid suspension content is inapplicable, and investment cost is also very large.
Liquid fertilizer current Problems existing in natural pond is the blocking causing drip irrigation zone, for the process of the higher fecal sewage of suspension content, adopt rational fermentation mode and technique to reduce its cost, and the blockage problem solving drip irrigation zone is current problem demanding prompt solution.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of preparation method of fertilizer, and main purpose is the production cost of natural pond fertilizer, solves the blockage problem of drip irrigation zone.
For achieving the above object, the present invention mainly provides following technical scheme:
A preparation method for fertilizer, comprises the steps:
The liquid dung of collection is carried out precipitate, homogenize process and filtration;
Described liquid dung after filtration is carried out anaerobically fermenting and obtains solidliquid mixture, described anaerobically fermenting carries out in full mixed anaerobic digestion reactor;
Described solidliquid mixture carries out solid-liquid separation and obtains natural pond liquid and solid organic fertilizer after homogenize process, described natural pond liquid is carried out tower filtration and carries out separate fermentation obtain natural pond liquid fertilizer.
Further, described natural pond liquid fertilizer carries out deodorizing, and described deodorizing is heating deodorizing, Heating temperature >=50 DEG C, heat-up time >=3h, multiplicity >=3.
Further, fermented feed liquid concentration: 7-9% in described anaerobically fermenting, fermentor tank feeds intake volume ratio: 85-95%; Fermenter volume factor of created gase: 1.1-1.3m
3/ (m
3.d), hydraulic retention times: 10-20d, leavening temperature: 35-40 DEG C, fermented product pH value: 7-7.5, material is suitable for carbon-nitrogen ratio: 15-25.
Further, water ratio: 60-70% in the slag of natural pond after solid-liquid separation, water ratio: 12-16% in the slag of solid organic fertilizer natural pond.
Further, in the natural pond liquid fertilizer after described deodorizing, add trace element, described trace element comprise Zn, Mn, Fe, Cu salt, can Mo.
Further, in described solid organic fertilizer, add trace element, described trace element comprise Zn, Mn, Fe, Cu salt, can Mo.
Further, the biogas that described anaerobically fermenting produces uses as gas for domestic use.
Further, the biogas that described anaerobically fermenting produces is carried out cover-floating type air storage, gas-liquid separation and desulfurization.
On the other hand, a kind of preparation facilities of fertilizer, comprises settling tank, equalizing tank, anaerobic fermentation tank, homogenize tank, the equipment for separating liquid from solid by pipeline successively UNICOM; Described anaerobic fermentation tank is full mixed anaerobic digestion reactor, described tower strainer is three layer filtration, wherein first circular diameter is 2.9-3.1 rice, and second diameter is 2.0-2.4 rice, and the 3rd is 1.0-1.4 rice, its filtering material adopts paper honeycomb, parameter is: aperture 8-12mm, unit weight 20-25kg/m, specific surface area 215-219m/m, intensity 6-9kg/cm, porosity 95-97%.
Compared with prior art, the present invention at least tool have the following advantages:
Adopt full mixed anaerobic digestion reactor to carry out anaerobically fermenting, can realize the dung dispose that solid suspension content is higher, reduce costs, treatment effect is good.
Adopt tower strainer to carry out filtering and carry out cutting polishing to particle larger in the liquid of natural pond particle is diminished not clogging drip irrigation band, solve the problem that natural pond liquid fertilizer in the past easily causes drip irrigation zone to block.
Add trace element in the fertilizer of natural pond, meet the needs to trace element in biological growth process.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.
A preparation method for fertilizer, comprises the steps:
(1) the pig manure dry matter content will collected: the liquid dung of 18% carries out precipitating, homogenize process and filtration;
The device parameter adopted is as follows
Settling tank: according to feces of farm day output, by one day six times fed batch, determines that settling tank volume is 8m
3, adopt skeleton construction, carry out anti-corrosion leak-proof process.
Pre-treatment equalizing tank: according to fermentor tank inlet amount day by day, determines that pretreatment pool volume is 64m
3, adopt skeleton construction, carry out anti-corrosion leak-proof process.At feed liquid port place, barrier is installed, plays the dual function of homogenize liquid manure and filtration suspended substance.
(2) the described liquid dung after filtration is carried out anaerobically fermenting and obtain solidliquid mixture, described anaerobically fermenting carries out in full mixed anaerobic digestion reactor;
CSTR anaerobic fermentation tank
CSTR anaerobic fermentation tank adopts enamel assembling tank, and enamel sheet is titanium alloy steel plate special, and thickness can reach 12mm. steel plate through special art breading, and inside and outside steel plate, two to three layers of enamel coating are coated on two sides.Steel plate, through heated polymerizable, makes to form very strong bonding force between enamel layer and steel plate.The protective layer that enamel coating is formed stops tank body corrosion, and have anti-strong acid, the function of highly basic, work-ing life can reach 30 years, and all components bolt is assembled, constructs convenient.
(3) described solidliquid mixture carries out solid-liquid separation and obtains natural pond liquid and solid organic fertilizer after homogenize process, described natural pond liquid is carried out tower filtration and carries out separate fermentation obtain natural pond liquid fertilizer.
For meeting the raw material of natural pond slag as SOLID ORGANIC composite fertilizer, solid-liquid separating machine being set, reacted material is fully separated.
The present embodiment need process 67m every day
3material, every day processes 7 hours, and processed in units amount is 10m
3/ h, selects 10-15m
3the solid-liquid separating machine of/h one.
Described tower strainer is three layer filtration, and wherein first circular diameter is 3 meters, and second diameter is 2.2 meters, and the 3rd is 1.2 meters, its filtering material adopts paper honeycomb, and parameter is: aperture 10mm, unit weight 20-25kg/m, specific surface area 217m/m, intensity 7.5kg/cm, porosity 95.5%
As preferably, described natural pond liquid fertilizer carries out deodorizing, and described deodorizing is heating deodorizing, Heating temperature 50 DEG C, heat-up time 3h, multiplicity 3 times.
As preferably, fermented feed liquid concentration in described anaerobically fermenting: 8%, fermentor tank feeds intake volume ratio: 90%; Fermenter volume factor of created gase: 1.2m
3/ (m
3.d), hydraulic retention times: 150d, leavening temperature: 37.5 DEG C, fermented product pH value: 7, material is suitable for carbon-nitrogen ratio: 20.
As preferably, water ratio in the slag of natural pond after solid-liquid separation: 65%, water ratio in the slag of solid organic fertilizer natural pond: 14%.
As preferably, in the natural pond liquid fertilizer after described deodorizing, add trace element, described trace element comprise Zn, Mn, Fe, Cu salt, can Mo.
As preferably, in described solid organic fertilizer, add trace element, described trace element comprise Zn, Mn, Fe, Cu salt, can Mo.
As preferably, the biogas that described anaerobically fermenting produces uses as gas for domestic use.
As preferably, the biogas produced by described anaerobically fermenting carries out cover-floating type air storage, gas-liquid separation and desulfurization;
Cover-floating type gas holder, adopts the assembled tank of full enameling sheet, doubles as second order fermentation tank.Both improve the efficiency of fecal sewage fermentative degradation, added the output of biogas, and ensured that biogas exports under stable pressure condition simultaneously, improve equipment efficiency of usage, reduce construction cost.
According to fermentor tank design biogas output, determine that gas-holder specification is as follows:
Floating cover: material: the assembled tank of enameling sheet; Volume: V=455m
3; Diameter: D=8.02m; Highly: H=9.00m;
Gas-holder: material: the assembled tank of enameling sheet; Volume: V=545m
3; Diameter: D=8.79m; Highly: H=9.00m.
Air water separator
Biogas is the mixed gas of high humidity.Biogas is when anaerobic fermentation tank enters pipeline, and temperature reduces gradually, can produce water of condensation impure in a large number in pipeline.If do not removed from system, easily blocking, destruction pipe-line equipment.Biogas pipeline is near the position of anaerobic fermentation tank, and biogas temperature drop value is maximum, and the water of condensation of generation is maximum, therefore arranges an air water separator herein, removes the water of condensation in biogas.In bionethanation system, pipeline is generally designed to the gradient of about 1% or larger, also arranges an air water separator in pipeline lower-most point.
Thionizer
Be that in the biogas produced after raw material anaerobic fermentation, H2S accounts for 0.5% ~ 1% of cumulative volume with ight soil.H2S content in general biogas utilization equipment requirements biogas, lower than 0.009%, therefore must arrange desulfurizer in methane utilizing system, and this project adopts dry-type desulfurizing tower, is positioned on cover-floating type gas-holder delivery conduit, before pressure gas tank and generating set.According to design gas production rate, adopt the dry-type desulfurizing tower one of processing power 80m3/h.
Pressure gas tank
For store enough near resident and worker's gas for domestic use, configure a 20m
3pressure gas tank, to meet longer-distance air supply requirement.
Natural pond fertilizer prepared by the embodiment of the present invention may be used for the drip irrigation of various crop, and the immersion etc. of seed, all has good effect.
Do not carry out the feature that limits and parameter thereof in the present invention and be technology conventional in this area and achievable, those skilled in the art can select suitable common technology as required.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (9)
1. a preparation method for fertilizer, is characterized in that, comprises the steps:
The liquid dung of collection is carried out precipitate, homogenize process and filtration;
Described liquid dung after filtration is carried out anaerobically fermenting and obtains solidliquid mixture, described anaerobically fermenting carries out in full mixed anaerobic digestion reactor;
Described solidliquid mixture carries out solid-liquid separation and obtains natural pond liquid and solid organic fertilizer after homogenize process, described natural pond liquid is carried out tower filtration and carries out separate fermentation obtain natural pond liquid fertilizer.
2. the preparation method of fertilizer according to claim 1, is characterized in that, described natural pond liquid fertilizer carries out deodorizing, and described deodorizing is heating deodorizing, Heating temperature >=50 DEG C, heat-up time >=3h, multiplicity >=3.
3. the preparation method of fertilizer according to claim 1, is characterized in that, fermented feed liquid concentration: 7-9% in described anaerobically fermenting, and fermentor tank feeds intake volume ratio: 85-95%; Fermenter volume factor of created gase: 1.1-1.3m
3/ (m
3.d), hydraulic retention times: 10-20d, leavening temperature: 35-40 DEG C, fermented product pH value: 7-7.5, material is suitable for carbon-nitrogen ratio: 15-25.
4. the preparation method of fertilizer according to claim 1, is characterized in that, water ratio: 60-70% in the slag of natural pond after solid-liquid separation, water ratio: 12-16% in the slag of solid organic fertilizer natural pond.
5. the preparation method of fertilizer according to claim 2, is characterized in that, adds trace element in the natural pond liquid fertilizer after described deodorizing, described trace element comprise Zn, Mn, Fe, Cu salt, can Mo.
6. the preparation method of fertilizer according to claim 1, is characterized in that, adds trace element in described solid organic fertilizer, described trace element comprise Zn, Mn, Fe, Cu salt, can Mo.
7. the preparation method of fertilizer according to claim 1, is characterized in that, the biogas that described anaerobically fermenting produces uses as gas for domestic use.
8. the preparation method of fertilizer according to claim 1, is characterized in that, the biogas produced by described anaerobically fermenting carries out cover-floating type air storage, gas-liquid separation and desulfurization.
9. a preparation facilities for fertilizer, is characterized in that, comprises settling tank, equalizing tank, anaerobic fermentation tank, homogenize tank, equipment for separating liquid from solid by pipeline successively UNICOM; Described anaerobic fermentation tank is full mixed anaerobic digestion reactor, described tower strainer is three layer filtration, wherein first circular diameter is 2.9-3.1 rice, and second diameter is 2.0-2.4 rice, and the 3rd is 1.0-1.4 rice, its filtering material adopts paper honeycomb, parameter is: aperture 8-12mm, unit weight 20-25kg/m, specific surface area 215-219m/m, intensity 6-9kg/cm, porosity 95-97%.
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| CN201510659550.9A CN105272397A (en) | 2015-10-12 | 2015-10-12 | Fertilizer preparation apparatus and method |
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|---|---|---|---|
| CN201510659550.9A CN105272397A (en) | 2015-10-12 | 2015-10-12 | Fertilizer preparation apparatus and method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107337480A (en) * | 2016-04-29 | 2017-11-10 | 扬州宇家环保科技有限公司 | A kind of poultry manure handling process |
| CN107493893A (en) * | 2017-08-31 | 2017-12-22 | 钟山佳园生态农业有限公司 | A kind of implantation methods of organic glycan |
| CN108610106A (en) * | 2018-04-13 | 2018-10-02 | 南安市创培电子科技有限公司 | A kind of method of agricultural wastes recycling |
| CN108840729A (en) * | 2018-09-14 | 2018-11-20 | 安徽养地生态科技有限公司 | The preparation process of one fowl and livestock dirt resource utilization production organic fertilizer |
| CN111233541A (en) * | 2020-02-21 | 2020-06-05 | 广西壮族自治区农业科学院 | Farmyard manure retting method suitable for drip irrigation |
| CN114031252A (en) * | 2021-11-30 | 2022-02-11 | 临沭久亿源农业生态科技有限公司 | Farm is with dirty processing system of high-efficient beasts and birds excrement |
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| CN102795725A (en) * | 2012-08-23 | 2012-11-28 | 鄂尔多斯市东胜区传祥垃圾处理有限责任公司 | Method for whole-process recycling of multiple biogas slurry components |
| CN103752591A (en) * | 2013-11-20 | 2014-04-30 | 青岛天人环境股份有限公司 | Comprehensive treatment process of waste |
| CN104496567A (en) * | 2014-12-17 | 2015-04-08 | 山东翔露农牧科技有限公司 | System and method for producing biogas manure from pig excrement and urine as chemical fertilizer |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107337480A (en) * | 2016-04-29 | 2017-11-10 | 扬州宇家环保科技有限公司 | A kind of poultry manure handling process |
| CN107493893A (en) * | 2017-08-31 | 2017-12-22 | 钟山佳园生态农业有限公司 | A kind of implantation methods of organic glycan |
| CN108610106A (en) * | 2018-04-13 | 2018-10-02 | 南安市创培电子科技有限公司 | A kind of method of agricultural wastes recycling |
| CN108840729A (en) * | 2018-09-14 | 2018-11-20 | 安徽养地生态科技有限公司 | The preparation process of one fowl and livestock dirt resource utilization production organic fertilizer |
| CN111233541A (en) * | 2020-02-21 | 2020-06-05 | 广西壮族自治区农业科学院 | Farmyard manure retting method suitable for drip irrigation |
| CN114031252A (en) * | 2021-11-30 | 2022-02-11 | 临沭久亿源农业生态科技有限公司 | Farm is with dirty processing system of high-efficient beasts and birds excrement |
| CN114031252B (en) * | 2021-11-30 | 2024-04-12 | 临沭久亿源农业生态科技有限公司 | Efficient livestock and poultry manure treatment system for farm |
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