CN105713928A - Kitchen waste treating technology - Google Patents
Kitchen waste treating technology Download PDFInfo
- Publication number
- CN105713928A CN105713928A CN201610050383.2A CN201610050383A CN105713928A CN 105713928 A CN105713928 A CN 105713928A CN 201610050383 A CN201610050383 A CN 201610050383A CN 105713928 A CN105713928 A CN 105713928A
- Authority
- CN
- China
- Prior art keywords
- fermentation
- biogas
- food waste
- changing food
- delivered
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P5/00—Preparation of hydrocarbons or halogenated hydrocarbons
- C12P5/02—Preparation of hydrocarbons or halogenated hydrocarbons acyclic
- C12P5/023—Methane
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F5/00—Fertilisers from distillery wastes, molasses, vinasses, sugar plant or similar wastes or residues, e.g. from waste originating from industrial processing of raw material of agricultural origin or derived products thereof
- C05F5/006—Waste from chemical processing of material, e.g. diestillation, roasting, cooking
- C05F5/008—Waste from biochemical processing of material, e.g. fermentation, breweries
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biotechnology (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Zoology (AREA)
- Molecular Biology (AREA)
- Environmental & Geological Engineering (AREA)
- Botany (AREA)
- Bioinformatics & Cheminformatics (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Processing Of Solid Wastes (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a kitchen waste treating technology, relating to the technical field of waste treatment. The kitchen waste treating technology comprises the steps of preliminary separation, unwetting separation, macrofiber organic matter composting treatment, oil-water separation, anaerobic fermentation, and anaerobic fermentation product treatment, wherein the anaerobic fermentation product treatment comprises the follow-up treatment of biogas desulphurizing and biogas residue composting. With the adoption of the technical scheme, the kitchen waste treating technology has the advantages that the floor area of the project is small, the operating cost is low, the technical scheme is high in reliability, the treatment process is high in harmless degree, volume reduction degree and technical safety, and a product obtained after treatment is good in quality and wide in application range.
Description
Technical field
The present invention relates to technical field of waste treatment.
Background technology
At present, the major technique that changing food waste processes includes pulverizing in line, landfill disposal, burning, Fertilizer Transformed processes, fodder processes, biochemical processor and anaerobic fermentation treatment technology.Changing food waste treatment technology more advanced abroad is mainly distributed on European countries, Korea S, Japan kitchen technology of garbage disposal also relatively advanced, but China's changing food waste from composition or degree of sorting all with abroad have bigger difference, external treatment technology is not necessarily suitable for the changing food waste of China and processes, moreover foreign technology major part key equipment not yet realizes production domesticization, equipment cost is very high, and external changing food waste treatment technology there is no the precedent of successful Application at home.It is thus desirable to for the practical situation of domestic changing food waste, explore that safety is good and the processing scheme of environmental protection.
Summary of the invention
The technical problem to be solved in the present invention is for above-mentioned the deficiencies in the prior art, it is provided that a kind of changing food waste processes technique, and its innoxious degree, minimizing degree and technical security are high, and operation cost and energy consumption are low, good product quality, applied range.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
A kind of changing food waste processes technique, comprises the steps:
A, tentatively sorting: use discharging screening installation that the changing food waste after discharging is tentatively sorted, the bulk foreign substances transhipment sorted out carries out burning or filling；
B, wet solution sort: changing food waste is carried out wet solution process by the wet screening installation that solves of use, is subsequently isolated out major diameter impurity, long fibre organic matter and liquid mixture, and the transhipment of major diameter impurity carries out burning or filling；
C, long fibre organic matter compost treatment: the long fibre organic matter wet solution sorted out is delivered to compositing system and carries out microorganism quick aerobic fermentation, and the solid matter after fermentation manufactures Nutrition Soil；
D, oil-water separation: the liquid mixture that wet solution sorts out is delivered to oil-water separation system and is easily separated, the oil phase separated is delivered to thick grease storage tank, and isolated aqueous phase and slag are delivered to mixing pit mutually and are sufficiently mixed；
E, anaerobic fermentation: mixed aqueous phase and slag are delivered to anaerobic fermentation system by anaerobic system feed pump and carry out high-temperature anaerobic fermentation；
F, anaerobic fermentation product process:
1), producing biogas and biogas residue after anaerobic fermentation, biogas treatment stores；
2), biogas residue composting.
As further technical scheme, in described step B, changing food waste, at 110～140 DEG C, carries out wet solution and processes when 0.5～0.7Mpa；In described step C, fermentation temperature is 25～70 DEG C, and fermentation time is 8～10d；In described step E, during high-temperature anaerobic fermentation, feeding temperature≤80 DEG C, first stop 24h in mud homogenizing pond, then be transported to high-temperature anaerobic fermentation tank, fermentation temperature is 55 ± 3 DEG C, and fermentation time is 29.4d, stops 24h at sludge storage pool after digestion.
As further technical scheme, in described step F, biogas desulfurization: produce biogas and biogas residue after anaerobic fermentation, biogas is delivered to biogas desulfurization process device and carries out desulfurization process, and the biogas after desulfurization is delivered to biogas cabinet and stores；Biogas residue compost: biogas residue is delivered to compositing system after dehydration and carries out microorganism quick aerobic fermentation, fermentation temperature is 25～70 DEG C, and fermentation time is 8～10d, and the solid matter after fermentation manufactures Nutrition Soil.
As further technical scheme, described microorganism quick aerobic fermentation technique includes:
A, biogas residue and long fibre organic matter are pulverized respectively；
B, cutted straw quasi-microorganism carrier, microorganism are laid in process storehouse and biogas residue or long fibre organic matter mix, pile high to 1.5 meters, add adjuvant subsequently；
C, DY aerobic fermentation: from putting into mixture, in 72 hours, fermentation temperature reaches 55～60 DEG C, continues 2～3d, and temperature declines naturally subsequently, completes fermentation when dropping to 35～40 DEG C；
D, stack air-dry, until stack thing be down to room temperature.
As further technical scheme, also include granulation of fertilizer step, manure use Granulation Equipments by stack air-dry after compost principal product carry out head-on collision pelletize.
As further technical scheme, in described step E, in mud homogenizing pond, put into ferrous chloride carry out desulfurization, reduce high-temperature anaerobic fermentation and produce the hydrogen sulfide content in biogas.
As further technical scheme, also include sewage treatment step, utilize the liquid debris produced during sewage disposal system purified treatment rubbish.
As further technical scheme, the biogas produced in described step F obtains compressed natural gas after being respectively used to purification, and burning methane boiler is warming for equipment and provides plant area's heating, and the opposing steam flow of generation solves screening installation to wet.
All it is connected with positive/negative-pressure combination deodoration system as further technical scheme, described discharging screening installation and the wet screening installation that solves；Positive/negative-pressure combination deodoration system includes the blower fan group and the comprehensive deodorization tower that are interconnected, blower fan group is connected by malleation collection conduit between screening installation with discharging screening installation and wet solution, comprehensive deodorization tower is connected by negative-pressure collecting tube road between screening installation with discharging screening installation and wet solution, and blower fan group is also associated with discharge tube.
Adopt and have the beneficial effects that produced by technique scheme:
Project occupation of land area is little, and operation cost is low, and technical scheme reliability is high, and the innoxious degree of processing procedure, minimizing degree and technical security are high, and energy consumption is low, the good product quality obtained after process, applied range.
Accompanying drawing explanation
Fig. 1 is the operation principle schematic diagram of the present invention；
Fig. 2 is the structural representation of positive/negative-pressure combination deodoration system.
In figure: 1, blower fan group；2, comprehensive deodorization tower；3, malleation collection conduit；4, negative-pressure collecting tube road；5, discharge tube；6, wet solution tank；7, pressure surge tank；8, thick squeezer；9, pressure-sizing crusher；10, gravitational sand settling groove.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
As shown in Figure 1-2, process an embodiment of technique for a kind of changing food waste of the present invention, including:
A, tentatively sorting: use discharging screening installation that the changing food waste after discharging is tentatively sorted, the bulk foreign substances transhipment sorted out carries out burning or filling.
Its discharging platform includes blowpit, separator, and blowpit is arranged in discharging, adopts the mode of two-layer platform discharging, it is simple to the direct discharging of dumper.Separate unit blowpit dischargeable capacity is 15m3, blowpit adopts stainless steel structure with material contact portion, and corrosion resistance is strong.Arranging two set shaftless screw discharge device and water treatment plants bottom blowpit, shaftless screw is delivered to separator for being promoted by changing food waste, and material is carried out preliminary drainage by water treatment plant, and Leachate site is collected through pipeline and entered in leachate collecting tank.Often set shaftless screw discharge device discharge end is equipped with bag-breaking device, for breaking packed changing food waste, simultaneously works as to the effect of separator uniform feeding.Being provided with foul smell gas skirt on blowpit top, cover body is arranged over deodorization air entry, and the negative-pressure collecting tube road 4 that air entry combines deodoration system with positive/negative-pressure is connected, and keeps tiny structure to run in blowpit, and the foul smell effectively reduced in blowpit is excessive.
Separator is the preliminary sorting unit of changing food waste pretreatment and oil-water separation system, and its Main Function is to sub-elect the different miscellaneous material of bulk.Being separated at the foreign material of more than 50mm by particle diameter in material by mechanical sorting mode, foreign material are mainly bulk ceramics, vial and plastic bag etc., and effectively protection subsequent delivery and the equipment of process is properly functioning.It is 50 × 50mm that separator effectively sorts aperture, also sets up flusher, adopts the liquid phase part of follow-up three-phase separator as flushing water, primary changing food waste to be rinsed in assorting room, improves the efficiency of separation of system.
B, wet solution sort.Wet solution refers to that rubbish is decomposed into little molecule legibility wants thing at high temperature, high pressure part difficult degradation macromolecule organic, and the soluble Organic substance of part enters in the middle of Leachate site, and part produces the material of abnormal smells from the patient and is added agent absorption or chemical reaction occurs.Wet solution technology often as the preconditioning technique of other technology of garbage disposal, seldom independently from.
Use wet solution screening installation by changing food waste at 110～140 DEG C, carry out wet solution when 0.5～0.7Mpa and process, be subsequently isolated out major diameter impurity, long fibre organic matter and liquid mixture.The transhipment of major diameter impurity carries out burning or filling.
Preferably, at 125 DEG C, wet solution should be carried out when 0.6Mpa and processes.
The oversize that separator sub-elects adopts Shaftless screw conveyor to be delivered between foreign material accumulating and stores transhipment, siftage enters changing food waste scraper conveyor special after being discharged by Shaftless screw conveyor, promotes conveying through drag conveyor and is put into wet accordingly solution in tank by tripper.
The vegetable and animals oils that changing food waste is incorporated in material under wet solution effect is sufficiently separated out, reducing material viscosity, the inorganic matter making density bigger is easier to sedimentation, separates, and the organic matter in material is dissolved, fiber is refined simultaneously, material viscosity coefficient reduces, and possesses good mobility.
C, long fibre organic matter compost treatment: the long fibre organic matter wet solution sorted out is delivered to compositing system and carries out microorganism quick aerobic fermentation, and fermentation temperature is 25～70 DEG C, and fermentation time is 8～10d, and the solid matter after fermentation manufactures Nutrition Soil.
Microorganism quick aerobic fermentation treatment technology is in organic biogas residue, with the addition of the microbial product through screening artificially, and by adjusting temperature, the parameter such as humidity and oxygen-supplying amount, the best environment of an activation is provided for these microorganisms, microorganism, with the Organic substance in biogas residue for nutrient, by the vital movement of microorganism, reaches the purpose of decomposition, digestion of organic matter.Its metabolite, except release water outlet, gas, still has the low molecular organic matter of part, inanimate matter and microorganism to retain on a small quantity with the residue form of solid-state.Residue is used as fertilizer.
When the quantity of microorganism is more than 1,000,000,000/gram, the degradation capability of microorganism is maximum, and being typically in 24 hours can degrade the organic principle of biogas residue 95%.When temperature, humidity and oxygen are suitable, microorganism needs the time of 6 to 7 days in biogas residue, can grow into 1,000,000,000/gram.So, microorganism aerobic ferments the minimum needs time of 7 days.Research proves, after the organic biogas residue when more than 95% is decomposed, the carbon-nitrogen ratio processed in product can reach 25:1 level below, it was shown that sweat is complete, and has reached the degree become thoroughly decomposed.So, effective process time of organic biogas residue should at about 7 days.The resolution of velocity of decades of times faster than Natural compost.
In the process of microbial degradation, starch based can produce monosaccharide and disaccharide and small dextrins by decomposition, can provide nutrition for other microbial growth, breeding in processing procedure, and carbohydrate may finally be decomposed into carbon dioxide and water.Saccharide, cellulose, pectin and lignin etc., decompose through specific thalline, and a portion generates carbon dioxide, and another part is utilized by Institute of Micro-biology and becomes thalline constituent, the remaining humus being combined into black with tropina.Protein and fat, be broken down into polypeptide amino acid, fatty acid, carbon dioxide and ammonia by specific mushroom.A portion is utilized by Institute of Micro-biology and forms tropina, and remainder becomes the humus of black.Microorganism can discharge substantial amounts of decomposition of protein (also referred to as enzyme) in the reaction, and larger molecular organics is decomposed into sugar, the low molecule organic matter such as fatty acid and aminoacid, these Organic substances again as the nutrient of microorganism, metabolism water outlet simultaneously, gas and biological heat energy.Microorganism self is bred with the speed of geometrical progression again, constantly organic biogas residue is decomposed so again and again.
Microorganism quick aerobic fermentation technique includes:
A, biogas residue and long fibre organic matter are pulverized respectively.
B, cutted straw quasi-microorganism carrier, microorganism are laid in process storehouse and biogas residue or long fibre organic matter mix, pile high to 1.5 meters, add adjuvant subsequently；The interpolation weight ratio of first time adjuvant (straw etc.) controls at 20-30%, and back-mixing material will be used as a part of adjuvant later.The ratio of back-mixing material is 20%, new adjuvant 10%.
C, DY aerobic fermentation: by stirring turner, the biogas residue processed in storehouse is stirred.Through the time of 7-9 days, the organic principle in biogas residue under the effect of microorganism, rapid fermentation.From putting into mixture, in 72 hours, the temperature of fermentation is up to 55～60 DEG C, and continues 2～3d.Temperature declines naturally subsequently, completes fermentation when dropping to 35～40 DEG C.
D, stack air-dry, until stack thing be down to room temperature.
D, oil-water separation: the liquid mixture that wet solution sorts out is delivered to oil-water separation system and is easily separated, the oil phase separated is delivered to thick grease storage tank, and isolated aqueous phase and slag are delivered to mixing pit mutually and are sufficiently mixed.
The major function of oil-water separation system is that organic slurry carries out oil, water, slag three phase separation, and oil-water separation system is made up of mixed liquor agitator tank, three-phase separator and attached tank body.
First material stirs in mixed liquor agitator tank, is then sent into three-phase separator by impeller pump uniformly and carries out oil-water separation.Impeller pump adopts VFC, it is ensured that the inlet amount of three-phase separator is stable.
Feed separation is become oil, water, slag three part by three-phase separator, and wherein oil phase (industrial crude oils and fats) flows into oils and fats baffle-box certainly, is delivered to oils and fats temporary storage tank by oil pump, regularly transports outward sale；Aqueous phase is entered liquid phase storage tank by pipeline self；Isolated slag charge is put into liquid phase storage tank by conveying worm conveying；In liquid phase storage tank, it is provided with agitator, three-phase separator is deviate from slag charge and aqueous phase is sufficiently mixed, anaerobic system feed pump be delivered to anaerobic fermentation system
E, mixed aqueous phase and slag are delivered to anaerobic fermentation system by anaerobic system feed pump carry out high-temperature anaerobic fermentation, feeding temperature≤80 DEG C, first 24h is stopped in mud homogenizing pond, it is transported to high-temperature anaerobic fermentation tank again, fermentation temperature is 55 ± 3 DEG C, fermentation time is 29.4d, stops 24h at sludge storage pool after digestion.
Before carrying out high-temperature anaerobic fermentation, it is possible to suitably put into ferrous chloride in the homogeneous pond of mud and carry out desulfurization, reduce anaerobic fermentation and produce the hydrogen sulfide content in biogas
This technique can process 298.33 tons of anaerobism slurry every day, and day inlet amount fluctuation≤120%, TS scope 8-12%, grain diameter≤10mm, biogas output is about 17688Nm3/d。
What adopt thermophilic digestion has the advantages of the following aspects:
Can making full use of temperature≤80 DEG C of rubbish after oil recovery system, it is to avoid the waste of heat, the efficiency of utilization of system is high；
Digested sludge decomposition rate is fast, and aerogenesis speed is high；
The required digestion time of digestion is short, and digester volume is little；
Digestion can improve dewatering performance of sludge；
Digestion can kill parasitic ovum and pathogenic bacterium；
It is combined with oil removing process can be greatly saved energy consumption, reduces operating cost than mesophilic digestion.
It is especially suitable for and tolerates the anaerobic technique of the changing food waste of oil-containing.
F, anaerobic fermentation product process:
1), biogas desulfurization: producing biogas and biogas residue after anaerobic fermentation, biogas is delivered to biogas desulfurization process device and carries out desulfurization process, and the biogas after desulfurization is delivered to biogas cabinet and stores.
Using FeOOH desulfurizer SDS-100, reaction mechanism is as follows:
FeOOH+2H 2 S→FeSSH+2H 2 O+21.7KJ/mol
FeSSH+O 2 →FeOOH+2S+196.5KJ/mol
SDS-100 desulfurizing agent is with " amorphous FeOOH " for main component, the spherical desulfurization product that interpolation special auxiliary agent and molecular architecture material are refined, and has the advantages such as rate of sulphur expulsion is fast, Sulfur capacity is big, precision is high, diffusion is good, resistance to water is strong.This agent is mainly used in biogas H2The elimination of S, can effectively protect the equipment such as Biogas Generator Set, boiler and pipeline.Compared with ordinary solid desulfurizing agent, SDS-100 desulfurizing agent not only Sulfur capacity is higher, and desulfurization without oxygenating when all can high-efficiency desulfurization, also can be suitably used for any concentration C O2Raw material.
2), biogas residue compost: biogas residue is delivered to compositing system after dehydration and carries out microorganism quick aerobic fermentation, and fermentation temperature is 25～70 DEG C, and fermentation time is 8～10d, and the solid matter after fermentation manufactures Nutrition Soil.Anaerobic fermentation system and biogas desulfurization process and are additionally provided with torch on the pipeline of device UNICOM, in order to combustion parts biogas, improve the safety of later period maintenance.
Discharging screening installation and the wet screening installation that solves all are connected with positive/negative-pressure combination deodoration system；Positive/negative-pressure combination deodoration system includes the blower fan group 1 and the comprehensive deodorization tower 2 that are interconnected, blower fan group 1 is connected by malleation collection conduit 3 between screening installation with discharging screening installation and wet solution, comprehensive deodorization tower 2 is connected by negative-pressure collecting tube road 4 between screening installation with discharging screening installation and wet solution, and blower fan group 1 is also associated with discharge tube 5.
Wet solution screening installation includes the wet solution tank, pressure surge tank, thick squeezer and the pressure-sizing crusher that are sequentially connected with.Through material buffer memory, pressure release in pressure surge tank of overly moist solution, subsequent discharging into and carry out squeezing sorting in thick squeezer, sub-elect the impurity more than 12mm in material, and carry out mechanical expression dehydration, the squeezing of long fibre Organic substance is deviate from by fine squeezer.
The wet tank design pressure 0.6MPa that solves, employing steam direct heating.Temperature in course of reaction, pressure, liquid level and heat time heating time are automatically controlled by automatic control system.
Pressure surge tank design pressure 0.4MPa, volume 20m3.After the wet solution of material, by wet solution tank by pressure-feed mode discharge to pressure surge tank, material is buffer memory, pressure release in pressure surge tank, subsequent discharges into and carries out squeezing sorting in thick squeezer.
The function of thick squeezer is to sub-elect in material the impurity more than 12mm, and impurity carries out mechanical expression dehydration, reduces the loss of organic materials.Impurity after press dewatering is delivered between foreign material accumulating by enclosed belt conveyor and stores transhipment.
Containing a large amount of long fibre Organic substances in filtrate after wet solution, by fine squeezer, the squeezing of this part long fibre Organic substance is deviate from, after collection, together carry out composting with anaerobism biogas residue.Filtrate after finely squeezing is imported in mixed liquor agitator tank by pipeline, carries out oil, water, slag three phase separation after homogenizing.
Also include granulation of fertilizer step, manure use Granulation Equipments by stack air-dry after compost principal product carry out head-on collision pelletize.
Also include sewage treatment step, utilize sewage disposal system to purify liquid and other production, the sanitary sewage of generation during biogas residue dehydration.
The biogas produced in step F obtains compressed natural gas after being respectively used to purification, and burning methane boiler is warming for equipment and provides plant area's heating, and the opposing steam flow of generation solves tank to wet.
After adopting technique scheme, project occupation of land area is little, and operation cost is low, and technical scheme reliability is high, and the innoxious degree of processing procedure, minimizing degree and technical security are high, and energy consumption is low, the good product quality obtained after process, applied range.
Claims (9)
1. a changing food waste processes technique, it is characterised in that comprise the steps:
A, tentatively sorting: use discharging screening installation that the changing food waste after discharging is tentatively sorted, the bulk foreign substances transhipment sorted out carries out burning or filling；
B, wet solution sort: changing food waste is carried out wet solution process by the wet screening installation that solves of use, is subsequently isolated out major diameter impurity, long fibre organic matter and liquid mixture, and the transhipment of major diameter impurity carries out burning or filling；
C, long fibre organic matter compost treatment: the long fibre organic matter wet solution sorted out is delivered to compositing system and carries out microorganism quick aerobic fermentation, and the solid matter after fermentation manufactures Nutrition Soil；
D, oil-water separation: the liquid mixture that wet solution sorts out is delivered to oil-water separation system and is easily separated, the oil phase separated is delivered to thick grease storage tank and stores, and isolated aqueous phase and slag are delivered to mixing pit mutually and are sufficiently mixed；
E, anaerobic fermentation: mixed aqueous phase and slag are delivered to anaerobic fermentation system by anaerobic system feed pump and carry out high-temperature anaerobic fermentation；
F, anaerobic fermentation product process:
1), producing biogas and biogas residue after anaerobic fermentation, biogas treatment stores；
2), biogas residue composting.
2. a kind of changing food waste according to claim 1 processes technique, it is characterised in that: in described step B, changing food waste, at 110～140 DEG C, carries out wet solution and processes when 0.5～0.7Mpa；In described step C, fermentation temperature is 25～70 DEG C, and fermentation time is 8～10d；In described step E, during high-temperature anaerobic fermentation, feeding temperature≤80 DEG C, first stop 24h in mud homogenizing pond, then be transported to high-temperature anaerobic fermentation tank, fermentation temperature is 55 ± 3 DEG C, and fermentation time is 29.4d, stops 24h at sludge storage pool after digestion.
3. a kind of changing food waste according to claim 1 processes technique, it is characterized in that: in described step F, biogas desulfurization: produce biogas and biogas residue after anaerobic fermentation, biogas is delivered to biogas desulfurization process device and carries out desulfurization process, and the biogas after desulfurization is delivered to biogas cabinet and stores；Biogas residue compost: biogas residue is delivered to compositing system after dehydration and carries out microorganism quick aerobic fermentation, fermentation temperature is 25～70 DEG C, and fermentation time is 8～10d, and the solid matter after fermentation manufactures Nutrition Soil.
4. a kind of changing food waste according to claim 3 processes technique, it is characterised in that: described microorganism quick aerobic fermentation technique includes:
A, biogas residue and long fibre organic matter are pulverized respectively；
B, cutted straw quasi-microorganism carrier, microorganism are laid in process storehouse and biogas residue or long fibre organic matter mix, pile high to 1.5 meters, add adjuvant subsequently；
C, DY aerobic fermentation: from putting into mixture, in 72 hours, fermentation temperature reaches 55～60 DEG C, continues 2～3d, and temperature declines naturally subsequently, completes fermentation when dropping to 35～40 DEG C；
D, stack air-dry, until stack thing be down to room temperature.
5. a kind of changing food waste according to claim 4 processes technique, it is characterised in that: also include granulation of fertilizer step, manure use Granulation Equipments by stack air-dry after compost principal product carry out head-on collision pelletize.
6. a kind of changing food waste according to claim 2 processes technique, it is characterised in that: in described step E, in mud homogenizing pond, put into ferrous chloride carry out desulfurization, reduce high-temperature anaerobic fermentation and produce the hydrogen sulfide content in biogas.
7. a kind of changing food waste according to claim 1 processes technique, it is characterised in that: also include sewage treatment step, utilize the liquid debris produced during sewage disposal system purified treatment rubbish.
8. a kind of changing food waste according to claim 3 processes technique, it is characterized in that: the biogas produced in described step F obtains compressed natural gas after being respectively used to purification, and burning methane boiler is warming for equipment and provides plant area's heating, the opposing steam flow of generation solves screening installation to wet.
9. a kind of changing food waste according to claim 1 processes technique, it is characterised in that: described discharging screening installation and the wet screening installation that solves all are connected with positive/negative-pressure combination deodoration system；Positive/negative-pressure combination deodoration system includes the blower fan group (1) and the comprehensive deodorization tower (2) that are interconnected, blower fan group (1) is connected by malleation collection conduit (3) between screening installation with discharging screening installation and wet solution, comprehensive deodorization tower (2) is connected by negative-pressure collecting tube road (4) between screening installation with discharging screening installation and wet solution, and blower fan group (1) is also associated with discharge tube (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610050383.2A CN105713928A (en) | 2016-01-26 | 2016-01-26 | Kitchen waste treating technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610050383.2A CN105713928A (en) | 2016-01-26 | 2016-01-26 | Kitchen waste treating technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105713928A true CN105713928A (en) | 2016-06-29 |
Family
ID=56154009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610050383.2A Pending CN105713928A (en) | 2016-01-26 | 2016-01-26 | Kitchen waste treating technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105713928A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106518333A (en) * | 2016-10-31 | 2017-03-22 | 河北绿碳生物科技有限公司 | Preparation method of anticorrosive granular organic fertilizer by using kitchen waste as raw material |
| CN106966767A (en) * | 2017-03-30 | 2017-07-21 | 张共敏 | Kitchen garbage energy, Fertilizer Transformed and fodder fusion treatment technique |
| CN107083403A (en) * | 2017-07-04 | 2017-08-22 | 合肥择浚电气设备有限公司 | A kind of technique of use house refuse fermentation and biogas production |
| CN110092676A (en) * | 2019-05-14 | 2019-08-06 | 连云港金驰生物科技有限公司 | A method of biological organic fertilizer is prepared with kitchen garbage |
| CN111392861A (en) * | 2020-04-01 | 2020-07-10 | 莱西市鑫喆工程技术服务中心 | Method for treating kitchen garbage and sewage |
| CN111515220A (en) * | 2020-04-28 | 2020-08-11 | 上海忠朗环保科技有限公司 | Kitchen waste treatment method and system |
| CN112403527A (en) * | 2020-11-27 | 2021-02-26 | 广东嘉荣环保新能源科技有限公司 | Catalyst for degrading kitchen waste and preparation method and application thereof |
| CN112851051A (en) * | 2021-03-16 | 2021-05-28 | 四川嘉博文生物科技有限公司 | Method for treating solid-liquid separation leachate of dining table residues |
| CN113500080A (en) * | 2021-05-23 | 2021-10-15 | 华北理工大学 | Biomass multi-element coupling gasification system |
| CN113717834A (en) * | 2021-09-03 | 2021-11-30 | 北京嘉博文生物科技有限公司 | Organic garbage treatment process and organic garbage treatment equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151683A (en) * | 2010-12-02 | 2011-08-17 | 北京工商大学 | Damp and heat fermentation comprehensive harmless and resource processing system for kitchen waste |
| CN102921704A (en) * | 2012-11-12 | 2013-02-13 | 都市高科（北京）环境科技有限公司 | Harmless disposal method of kitchen garbage |
| CN103074381A (en) * | 2013-01-14 | 2013-05-01 | 桑德环境资源股份有限公司 | Efficient resourceful treatment method through separation and anaerobic fermentation for kitchen waste |
| CN103848698A (en) * | 2014-03-27 | 2014-06-11 | 青岛福瑞斯生物能源科技开发有限公司 | Biological organic fertilizer prepared by aerobic fermentation of biogas residue and preparation method thereof |
| CN104646390A (en) * | 2013-11-19 | 2015-05-27 | 深圳德瑞新能科技有限公司 | High-efficiency low-energy-consumption kitchen garbage comprehensive treatment method |
| CN105057311A (en) * | 2015-08-11 | 2015-11-18 | 陈丹 | Comprehensive treatment device and method for kitchen waste |
-
2016
- 2016-01-26 CN CN201610050383.2A patent/CN105713928A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151683A (en) * | 2010-12-02 | 2011-08-17 | 北京工商大学 | Damp and heat fermentation comprehensive harmless and resource processing system for kitchen waste |
| CN102921704A (en) * | 2012-11-12 | 2013-02-13 | 都市高科（北京）环境科技有限公司 | Harmless disposal method of kitchen garbage |
| CN103074381A (en) * | 2013-01-14 | 2013-05-01 | 桑德环境资源股份有限公司 | Efficient resourceful treatment method through separation and anaerobic fermentation for kitchen waste |
| CN104646390A (en) * | 2013-11-19 | 2015-05-27 | 深圳德瑞新能科技有限公司 | High-efficiency low-energy-consumption kitchen garbage comprehensive treatment method |
| CN103848698A (en) * | 2014-03-27 | 2014-06-11 | 青岛福瑞斯生物能源科技开发有限公司 | Biological organic fertilizer prepared by aerobic fermentation of biogas residue and preparation method thereof |
| CN105057311A (en) * | 2015-08-11 | 2015-11-18 | 陈丹 | Comprehensive treatment device and method for kitchen waste |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106518333A (en) * | 2016-10-31 | 2017-03-22 | 河北绿碳生物科技有限公司 | Preparation method of anticorrosive granular organic fertilizer by using kitchen waste as raw material |
| CN106966767A (en) * | 2017-03-30 | 2017-07-21 | 张共敏 | Kitchen garbage energy, Fertilizer Transformed and fodder fusion treatment technique |
| CN107083403A (en) * | 2017-07-04 | 2017-08-22 | 合肥择浚电气设备有限公司 | A kind of technique of use house refuse fermentation and biogas production |
| CN110092676A (en) * | 2019-05-14 | 2019-08-06 | 连云港金驰生物科技有限公司 | A method of biological organic fertilizer is prepared with kitchen garbage |
| CN111392861A (en) * | 2020-04-01 | 2020-07-10 | 莱西市鑫喆工程技术服务中心 | Method for treating kitchen garbage and sewage |
| CN111392861B (en) * | 2020-04-01 | 2021-05-11 | 广西兰池环保科技有限公司 | Method for treating kitchen garbage and sewage |
| CN111515220A (en) * | 2020-04-28 | 2020-08-11 | 上海忠朗环保科技有限公司 | Kitchen waste treatment method and system |
| CN112403527A (en) * | 2020-11-27 | 2021-02-26 | 广东嘉荣环保新能源科技有限公司 | Catalyst for degrading kitchen waste and preparation method and application thereof |
| CN112403527B (en) * | 2020-11-27 | 2023-08-01 | 广东嘉荣环保新能源科技有限公司 | Catalyst for degrading kitchen waste and preparation method and application thereof |
| CN112851051A (en) * | 2021-03-16 | 2021-05-28 | 四川嘉博文生物科技有限公司 | Method for treating solid-liquid separation leachate of dining table residues |
| CN113500080A (en) * | 2021-05-23 | 2021-10-15 | 华北理工大学 | Biomass multi-element coupling gasification system |
| CN113717834A (en) * | 2021-09-03 | 2021-11-30 | 北京嘉博文生物科技有限公司 | Organic garbage treatment process and organic garbage treatment equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105713928A (en) | Kitchen waste treating technology | |
| CN101337838B (en) | Combined anaerobic fermentation process for organic solid wastes | |
| CN101555087B (en) | Combined anaerobic process apparatus for treating organic wastes | |
| CN102173507B (en) | Method for comprehensively recycling fecal sewage of large-scale livestock and poultry farms and farmland crop straws | |
| CN102227382B (en) | Method and apparatus for integratedly treating domestic wastewater and organic garbage | |
| CN102703514B (en) | Kitchen waste disposal method and anaerobic fermentation reaction device | |
| CN107117786A (en) | Plant's dejecta treatment method and system | |
| CN102286541A (en) | Method for preparing biogas through food waste, urban sludge and urban excrement | |
| CN101913747B (en) | Method for producing methane by combination fermentation of paper mill sludge and food waste | |
| CN107473549A (en) | A kind of agricultural wastes cyclic utilization system | |
| CN112588788B (en) | Short-flow resourceful treatment process for kitchen waste | |
| CN104692847B (en) | A kind of high a great number of elements liquid organic fertilizer production method | |
| CN112191665B (en) | System and method for preparing biological natural gas through synergistic treatment of kitchen waste and livestock and poultry manure | |
| WO2012018908A2 (en) | Digester for high solids waste | |
| CN107583933B (en) | Ecological circulating system for harmless treatment and resource utilization of wastes | |
| CN114058482A (en) | Anaerobic digestion system for improving biogas production efficiency | |
| CN102500608A (en) | Anaerobic treatment process for high-concentration kitchen waste | |
| CN209740874U (en) | Biogas slurry treatment device | |
| CN205856282U (en) | A kind of feces disposal equipment | |
| CN105164061A (en) | Waste processing method and apparatus | |
| CN211847929U (en) | Straw and high ammonia nitrogen material combined dry anaerobic fermentation system | |
| CN106282245B (en) | Novel organic garbage recycling method and system | |
| CN105180171A (en) | Garbage treatment method and garbage treatment equipment | |
| CN104846019A (en) | Gas making method by mixing and fermenting cow dung separating medium and kitchen garbage | |
| CN215403931U (en) | Regional organic waste coprocessing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160629 |