CN110116125A - A kind of Food waste treatment method - Google Patents
A kind of Food waste treatment method Download PDFInfo
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- CN110116125A CN110116125A CN201910406940.3A CN201910406940A CN110116125A CN 110116125 A CN110116125 A CN 110116125A CN 201910406940 A CN201910406940 A CN 201910406940A CN 110116125 A CN110116125 A CN 110116125A
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- food waste
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- 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
- Y02W30/20—Waste processing or separation
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention proposes a kind of Food waste treatment methods, specifically include following nine steps: draining, garbage sorting, slurrying screening, sand setting, filters pressing, three phase separation, anaerobic fermentation processing, fodder processing and domestic fungus cultivating.Food waste treatment method of the present invention is simple, and residue is few after processing, and kitchen garbage rate of recovery rate height mitigates environmental pollution, protects environment, and the crude oil of generation can be can be used for burning and generating electricity with secondary use, the biogas of generation, be increased operation rate；Fodder protein additive can be made simultaneously, improve the nutritional ingredient of poultry feed, so that poultry growth is rapidly, as the matrix of edible mushroom, the economic value of kitchen garbage can be improved, therefore, this method has broad application prospects.
Description
Technical field
The present invention relates to technical field of waste treatment, and in particular to a kind of Food waste treatment method.
Background technique
As urban economy, society and people's lives are fast-developing, kitchen garbage pacifies the pollution and public health of environment
Full harm increasingly shows, and the harm of kitchen garbage has caused the great attention of people and government.It builds kitchen garbage and handles work
Journey is the needs of rapid urban, meets the sustainable development of kitchen garbage processing, improves that kitchen garbage is innoxious, subtracts
Quantization and recycling are horizontal, and can improve the transportation of kitchen garbage.
The major technique of kitchen garbage processing at present includes landfill, burning, anaerobic fermentation, aerobic compost, directly drying work
Feed and microbiological treatment technology.There is the features such as land occupation is big, and percolate is more, environmental risk is big in Landfill；Since calorific value is low,
Energy consumption is high, and generates the pernicious gases such as dioxin, limits the development of incineration technology；There is homologous for fodder and Fertilizer Transformed
The risk of contact scar, efficiency are also very low；Anaerobic fermentation process is higher to kitchen garbage material requirement, if pretreated through front end
The requirement of anaerobic digestion is not achieved in material, is easy for causing anaerobic digester system production gas unstable or is difficult to the problems such as producing gas；
Aerobic compost processing technique, but the high fat content and high salinity in kitchen garbage are unfavorable for the growth of microorganism, also make
The about effect of high-temperature aerobic composting treatment process.Simultaneously high temperature aerobic composting processing technique because its occupied area it is very big.
China Patent No. 2013107144907 discloses a kind of restaurant garbage treating system, after kitchen garbage pulverizing, into
Then row solid-liquid separation treatment carries out canteen digestion to solid kitchen garbage by biological larva.But it was actually using
It is found in journey, after being separated by solid-liquid separation, needs step by step to be respectively processed solid-state and liquid rubbish, the treatment effeciency of rubbish
It is lower, also, importantly, for handling large batch of kitchen garbage, after being pulverized, kitchen garbage cannot handle in time according to
So meeting self-fermentation is rotten generates toxic gas, and additionally increases refrigerator and will increase manufacturing cost and operating cost.
Chinese patent 201010203400.4 discloses a kind of method and object using black soldier flies larva processing kitchen garbage
Material formula.Auxiliary material will be added after kitchen garbage coarse crushing, obtains black soldier flies larva compost, then on black soldier flies larva compost surface
Black soldier flies ovum is accessed, the larva of black soldier flies egg hatching takes black soldier flies larva compost, rubbish is made to be handled and be removed.In Heisui River
Before horsefly larva is aging, one polypide collection vessel of external connection in region is stacked in black soldier flies larva compost, which collects
Container is provided with dry bran powder, collects aging black soldier flies larva to guide.Remaining processed black soldier flies larva
Biological organic fertilizer is made in compost after drying.
The rubbish from cooking classified can be effectively treated in this method, however, at present China garbage classification executive condition compared with
Difference, most areas do not classify to rubbish effectively, kitchen garbage complicated component, form polyisocyanate in impurity, before not passing through
The rubbish from cooking of phase processing, high-moisture, floorboard with high oil content and high salinity and excessive useless tableware, plastics, paper handkerchief, pericarp,
The sundries such as fruit stone are the principal elements restricted using black soldier flies larva processing kitchen garbage industrial application.
How to design a kind of Food waste treatment method that garbage treatment efficiency is high is that technology to be solved by this invention is asked
Topic.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of Food waste treatment method, after anaerobic fermentation
Residue by inoculation screwworm high speed breed, generate a large amount of fly maggot, in time kill fly maggot after crush obtain high-protein feeding
Feed additives, for the additive as poultry feed, to improve the feed nutrient of poultry, so that poultry growth is rapid.
The present invention provides a kind of Food waste treatment method, successively the following steps are included: draining, garbage sorting, slurrying sieve
Divide, sand setting, filters pressing, three phase separation, anaerobic fermentation processing, fodder handles and domestic fungus cultivating.
As further improvement of the invention, specifically includes the following steps:
S1. it draining: is put into kitchen garbage as treating material in material-receiving device, is delivered to sorter, transmission process
The most of free water of middle bleeding, collects the water that drip removes, discharges after sewage treatment；
S2. garbage sorting: sorter carries out size screening to material, sorts out the coarse sundries of size 50mm or more, on sieve
Sundries is delivered to solids hopper by conveyer, sieves after lower fines falls into fines delivery pump and is pumped into crusher；
S3. slurrying sieve: crusher to fines carry out high speed smash at random, slurrying, while be added water dilution size mixing, formed
Slurries, then slurries are screened out to be not easy to smash, the lower tiny sundries of utility value, it is carefully miscellaneous to be slowly conveyed into admittedly by conveyer
Body silo, slurries are conveyed into sand settling machine by conveyer；
S4. sand setting: sand settling machine gravity is settled out the larger substance of specific gravity, and sediment is sent into solids hopper by conveyer, is removed
Material overflow after sand enters the pond 1#；
S5. filters pressing: heating slurries in the pond 1#, lifts temperature to 40 DEG C or so, and filters pressing processing is press-filtered out size and is greater than
The solid sundries of 1mm, Gu sundries is sent into solids hopper by conveyer, filtrate flows into combination heater certainly；
S6. three phase separation: filtrate is pumped into three-phase separator after being heated to 55 DEG C or more in combination heater, flow by
Valve control, carries out decompression low temperature and extracts, and respectively obtains crude oil rouge, oil-poor waste water, organic solid slag three from the outlet of seperator difference
Phase product, organic solid slag are sent into solids hopper by conveyer；Crude oil rouge is pumped into settling tank after entering transfer fuel tank, by about
Sedimentation in 4 hours, obtains that quality is preferable, the low crude oil of percentage of impurity；Sediment flows back into the pond 1#；Oil-poor waste water enters 2# water
Pond, wherein 1/3 reflux is as spray water for cleaning, remaining is pumped into anaerobic system；
S7. anaerobic fermentation is handled: the solids in solids hopper is sent into anaerobic system by conveyer, and by 2# pond pump
The oil-poor waste water mixing entered, is added anaerobic activated sludge, carries out anaerobic fermentation under certain condition, generates biogas, hydrogen and residual
Slag；
S8. fodder is handled: the residue that step S7 is obtained is inoculated with first-instar young, and it is primary that every 36h turns over pile, to polypide by white
Turn Huang, and occur part pupate phenomenon when with high temperature and high pressure steam kill fly maggot, sift out fly maggot, high speed chopping stirring is raised
Expect protein additive and residual residue, continues to employ；
The residual residue of step S8: being added nutrient solution needed for cultivating edible mushroom by S9. domestic fungus cultivating, and compacting is used as base
Body, which is placed under suitable condition, is inoculated with edible mushroom, cultivates 15-30 days, cuts off after edible mushroom is mature, and matrix is added to cultivate and eat
It can be recycled after nutrient solution needed for bacterium.
As further improvement of the invention, the revolving speed that high speed is smashed at random described in step S3 is 10000-15000r/
min。
It is improved as of the invention further, the condition that decompression body temperature described in step S6 is extracted is -0.08MPa, 70 DEG C,
Extract 2-5h.
Improved as of the invention further, anaerobic fermentation conditions described in step S7 be temperature be 37 DEG C, pH 6.0,
Dilution rate is 1.0-4.0d-1。
As further improvement of the invention, high temperature and high pressure steam described in step S8 is that temperature is 100 DEG C, and pressure is
The water vapour of 2MPa；The high temperature and high pressure steam processing time is 15-30min.
As further improvement of the invention, larva described in step S8 is fly, black soldier flies, aphis lion, white moth and ladybug
One or more of.
As further improvement of the invention, fodder protein additive described in step S8 can be used as protein and poultry be added
In feed.
As further improvement of the invention, the revolving speed shredded at a high speed described in step S8 is 7000-10000r/min.
Improved as of the invention further, edible mushroom described in step S9 include Cordyceps militaris, needle mushroom, mushroom, agaric,
Hericium erinaceus, coprinus comatus, hickory chick, saddle fungus, ferfas, straw mushroom, oyster mushroom, elegant precious mushroom, Pleurotus eryngii, agrocybe, tremella, bolete,
One or more of russule, dictyophora phalloidea, dried mushroom, Trichotoma matsutake and ganoderma lucidum.
The invention has the following beneficial effects:
The present invention is removed moisture most in kitchen garbage drip by draining, mitigates the quality and volume of kitchen garbage,
It is readily transported, while the waste water in kitchen garbage discharges after processing, improves the utilization of water resource, protect environment；By that will eat
Kitchen rubbish is sorted, and obtained rubbish can be used for recycling, and obtains biogas, hydrogen and feed addictive, improves the benefit of rubbish
With rate and degradation rate；It is extracted by decompression low temperature, most grease is extracted to the crude oil for being made more pure, improve kitchen
The recovery utilization rate of rubbish reduces its pollution on the environment, while depressurizing low temperature extraction and advantageously reducing energy consumption, protection ring
Border；It is by being mechanically pulverized that bulk rubbish is comminuted, convenient for mixing with flyash, bentonite, active anaerobic sludge is added, wherein
Anaerobic bacteria highly effective methane-producing, hydrogen under suitable conditions, it is stable and efficiently to produce gas, must add after improving kitchen garbage processing
Value, biogas, the hydrogen of generation can be used as energy heat production or power generation；It is high by inoculation screwworm by the residue after anaerobic fermentation
Speed breeding, generates a large amount of fly maggot, and crushing obtains high-protein feed additive after killing fly maggot in time, for being used as poultry feed
Additive, to improve the feed nutrient of poultry, so that poultry growth is rapid；Edible mushroom institute is cultivated by the way that residue to be added
The matrix obtained after the nutrient solution mixing needed is for being inoculated with edible mushroom, using its nutrition abundant for cultivating edible mushroom, so that
Edible fungi growth is rapid, improves the economic value of kitchen garbage；
Food waste treatment method of the present invention is simple, and residue is few after processing, and kitchen garbage rate of recovery rate height mitigates environment
Pollution, protects environment, and the crude oil of generation can be can be used for burning and generating electricity with secondary use, the biogas of generation, be increased operation rate；
Fodder protein additive can be made simultaneously, improve the nutritional ingredient of poultry feed, so that poultry growth is rapidly, as edible mushroom
Matrix, the economic value of kitchen garbage can be improved, therefore, this method has broad application prospects.
Detailed description of the invention
Fig. 1 is the treatment process figure of kitchen garbage of the present invention.
Specific embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, the embodiment described is the embodiment of part of representative of the invention, rather than whole embodiments, this field are general
Other all embodiments obtained belong to protection of the invention to logical technical staff without making creative work
Range.
Embodiment 1
A kind of Food waste treatment method, specifically includes the following steps:
S1. it draining: is put into kitchen garbage as treating material in material-receiving device, is delivered to sorter, transmission process
The most of free water of middle bleeding, collects the water that drip removes, discharges after sewage treatment is up to standard, mitigate environmental pollution, to protection environment
It is of great significance；
S2. garbage sorting: sorter carries out size screening to material, sorts out the coarse sundries of size 50mm or more, on sieve
Sundries is delivered to solids hopper by conveyer, sieves after lower fines falls into fines delivery pump and is pumped into crusher, step sorting is picked up
Large scale rubbish out enormously simplifies the processing difficulty of subsequent step；
S3. slurrying is sieved: crusher carries out high speed to fines and smashes at random, and revolving speed 10000r/min, slurrying adds simultaneously
Enter water dilution to size mixing, slurries is formed, then be not easy to smash, the lower tiny sundries of utility value is screened out using sieve, on sieve
Tiny sundries solids hopper is slowly conveyed by conveyer, slurries are conveyed into sand settling machine by conveyer；Sieve herein is
10 mesh；
S4. sand setting: sand settling machine gravity is settled out the substance that specific gravity is greater than 2.5, and sediment is sent into solid material by conveyer
Bucket, the material overflow after desanding enter the pond 1#, obtain slurries；
S5. filters pressing: heating the slurries in the pond 1#, lifts temperature to 40 DEG C or so, and it is big to be press-filtered out size for filters pressing processing
In the solid sundries of 1mm, Gu sundries is sent into solids hopper by conveyer, for filtrate from combination heater is flowed into, which will
The biggish garbage truck of density obtains solid sundries, further separates solid-liquid two-phase, simplifies subsequent processing steps；
S6. three phase separation: filtrate is pumped into three-phase separator after being heated to 55 DEG C or more in combination heater, flow by
Valve control, progress -0.08MPa, 70 DEG C of decompression low temperature extract 2h, export from seperator difference and respectively obtain crude oil rouge, oil-poor
Waste water, organic solid slag three-phase product, organic solid slag are sent into solids hopper by conveyer；Crude oil rouge is pumped into after entering transfer fuel tank
In settling tank, by sedimentation in about 4 hours, obtain that quality is preferable, the low crude oil of percentage of impurity, percentage of impurity 5.7%；In settling tank
Obtained flowable sediment flows back into the pond 1#；Oil-poor waste water enters the pond 2#, wherein 1/3 reflux is used as spray cleaning
Water, can be used for the cleaning of the equipment such as material-receiving device, crusher, sand settling machine, three-phase separator, remaining is pumped into anaerobic system；
S7. anaerobic fermentation is handled: the solids in solids hopper is sent into anaerobic system by conveyer, and by 2# pond pump
The oil-poor waste water mixing entered, is added anaerobic activated sludge, carries out anaerobic fermentation under certain condition, temperature is 37 DEG C, pH is
6.0, dilution rate 1.0d-1, generate biogas, hydrogen and residue；
S8. fodder is handled: the residue that step S7 is obtained is inoculated with screwworm on the 1st, concrete operations: with electronic separate type
Residue is crushed to partial size less than 4mm by meat grinder, is 6.67g/ by the amount that per kilogram residue is inoculated with screwworm inoculum on the 1st
Kg is laid in the incubator marked, and thickness is about 6cm, and it is primary that every 36h turns over pile, to polypide by Bai Zhuanhuang, and partization occurs
Temperature is 100 DEG C when pupa phenomenon, and the water vapour that pressure is 2MPa kills fly maggot, handles 15min, sifts out fly using 10 meshes
Maggot, high speed chopping stirring, revolving speed 7000r/min obtain fodder protein additive, and testing its protein content is 76.5%,
It is residual residue under sieve, continues to employ；
S9. the residual residue of step S8 domestic fungus cultivating: is added to nutrient solution needed for cultivating Cordyceps militaris, the nutrient solution
Formula are as follows: glucose 5g/L, soya bean 8g/L, milk powder 5g/L, Triammonium citrate 1.0g/L, potassium dihydrogen phosphate 1.0g/L, magnesium sulfate
1.0g/L, vitamin B11 0mg/L, compacting are inoculated with Cordyceps militaris as matrix, and 20-25 DEG C, humidity 65% is cultivated 30 days, to pupa
It is cut off after cordyceps sinensis is mature, it is 7-15cm that detection, which obtains mycelium height, and disease incidence 1.2%, matrix, which is added, cultivates Cordyceps militaris institute
It can be recycled after the nutrient solution needed.
Embodiment 2
A kind of Food waste treatment method, specifically includes the following steps:
S1. it draining: is put into kitchen garbage as treating material in material-receiving device, is delivered to sorter, transmission process
The most of free water of middle bleeding, collects the water that drip removes, discharges after sewage treatment is up to standard, mitigate environmental pollution, to protection environment
It is of great significance；
S2. garbage sorting: sorter carries out size screening to material, sorts out the coarse sundries of size 50mm or more, on sieve
Sundries is delivered to solids hopper by conveyer, sieves after lower fines falls into fines delivery pump and is pumped into crusher, step sorting is picked up
Large scale rubbish out enormously simplifies the processing difficulty of subsequent step；
S3. slurrying is sieved: crusher carries out high speed to fines and smashes at random, and revolving speed 15000r/min, slurrying adds simultaneously
Enter water dilution to size mixing, slurries is formed, then be not easy to smash, the lower tiny sundries of utility value is screened out using sieve, on sieve
Tiny sundries solids hopper is slowly conveyed by conveyer, slurries are conveyed into sand settling machine by conveyer；Sieve herein is
10 mesh；
S4. sand setting: sand settling machine gravity is settled out the larger substance of specific gravity, and sediment is sent into solids hopper by conveyer, is removed
Material overflow after sand enters the pond 1#；
S5. filters pressing: heating slurries in the pond 1#, lifts temperature to 40 DEG C or so, and filters pressing processing is press-filtered out size and is greater than
The solid sundries of 1mm, Gu sundries is sent into solids hopper by conveyer, filtrate further separates solid-liquid from combination heater is flowed into
Two-phase simplifies subsequent processing steps；
S6. three phase separation: filtrate is pumped into three-phase separator after being heated to 55 DEG C or more in combination heater, flow by
Valve control, progress -0.08MPa, 70 DEG C of decompression low temperature extract 5h, export from seperator difference and respectively obtain crude oil rouge, oil-poor
Waste water, organic solid slag three-phase product, organic solid slag are sent into solids hopper by conveyer；Crude oil rouge is pumped into after entering transfer fuel tank
In settling tank, by sedimentation in about 4 hours, obtain that quality is preferable, the low crude oil of percentage of impurity, percentage of impurity 3.5%；Sediment returns
It flows in the pond 1#；Oil-poor waste water enters the pond 2#, and 1/3 reflux can be used for material-receiving device, break as spray water for cleaning
The cleaning of the equipment such as broken machine, sand settling machine, three-phase separator, remaining is pumped into anaerobic system；
S7. anaerobic fermentation is handled: the solids in solids hopper is sent into anaerobic system by conveyer, and by 2# pond pump
The oil-poor waste water mixing entered, is added anaerobic activated sludge, carries out anaerobic fermentation under certain condition, temperature is 37 DEG C, pH is
6.0, dilution rate 4.0d-1, generate biogas, hydrogen and residue；
S8. fodder is handled: the residue that step S7 is obtained is inoculated with black soldier flies larva on the 1st, concrete operations: with electronic separation
Residue is crushed to partial size less than 4mm by formula meat grinder, is by the amount that per kilogram residue is inoculated with black soldier flies larva inoculum on the 1st
12.5g/kg is laid in the incubator marked, and thickness is about 6cm, and it is primary that every 36h turns over pile, to polypide by Bai Zhuanhuang, and occurs
Temperature is 100 DEG C when phenomenon of partially pupating, and the water vapour that pressure is 2MPa kills Mang maggot, handles 30min, sifts out Mang maggot, height
Speed chopping stirring, revolving speed 10000r/min obtain fodder protein additive, and testing its protein content is 90.7%, under sieve
It is residual residue, continues to employ；
The residual residue of step S8: being added nutrient solution needed for cultivating mushroom by S9. domestic fungus cultivating, and the nutrient solution is matched
Side are as follows: oat bran 15g/L, sawdust 10g/L, wheat-straw 5g/L, glucose 2.0g/L, potassium dihydrogen phosphate 1.0g/L, magnesium sulfate
1.0g/L, vitamin B11 0mg/L, compacting are inoculated with mushroom as matrix, and 20-25 DEG C, humidity 85% is cultivated 10 days, to pupa worm
It is cut off after careless maturation, it is 5-7cm that detection, which obtains mycelium height, and the diameter average value of umbrella body is 5.67cm, and disease incidence is
0.5%, matrix is added needed for cultivating mushroom and can be recycled after nutrient solution.
Embodiment 3
A kind of Food waste treatment method, specifically includes the following steps:
S1. it draining: is put into kitchen garbage as treating material in material-receiving device, is delivered to sorter, transmission process
The most of free water of middle bleeding, collects the water that drip removes, discharges after sewage treatment is up to standard, mitigate environmental pollution, to protection environment
It is of great significance；
S2. garbage sorting: sorter carries out size screening to material, sorts out the coarse sundries of size 50mm or more, on sieve
Sundries is delivered to solids hopper by conveyer, sieves after lower fines falls into fines delivery pump and is pumped into crusher, step sorting is picked up
Large scale rubbish out enormously simplifies the processing difficulty of subsequent step；
S3. slurrying is sieved: slurrying screening: crusher carries out high speed to fines and smashes at random, revolving speed 12500r/min, system
Slurry, while water dilution is added and sizes mixing, slurries are formed, then screen out that being not easy to smash, utility value is lower tiny using sieve
Sundries, the tiny sundries on sieve are slowly conveyed into solids hopper by conveyer, and slurries are conveyed into sand settling machine by conveyer；Herein
Sieve be 10 mesh；
S4. sand setting: sand settling machine gravity is settled out the larger substance of specific gravity, and sediment is sent into solids hopper by conveyer, is removed
Material overflow after sand enters the pond 1#；
S5. filters pressing: heating slurries in the pond 1#, lifts temperature to 40 DEG C or so, and filters pressing processing is press-filtered out size and is greater than
The solid sundries of 1mm, Gu sundries is sent into solids hopper by conveyer, filtrate further separates solid-liquid from combination heater is flowed into
Two-phase simplifies subsequent processing steps；
S6. three phase separation: filtrate is pumped into three-phase separator after being heated to 55 DEG C or more in combination heater, flow by
Valve control, progress -0.08MPa, 70 DEG C of decompression low temperature extract 3.5h, export from seperator difference and respectively obtain crude oil rouge, poor
Oily waste water, organic solid slag three-phase product, organic solid slag are sent into solids hopper by conveyer；Crude oil rouge pumps after entering transfer fuel tank
Enter in settling tank, by sedimentation in about 4 hours, obtains that quality is preferable, the low crude oil of percentage of impurity, percentage of impurity 4.2%；Sediment
It flows back into the pond 1#；Oil-poor waste water enters the pond 2#, 1/3 reflux as spray water for cleaning, can be used for material-receiving device,
The cleaning of the equipment such as crusher, sand settling machine, three-phase separator, remaining is pumped into anaerobic system；
S7. anaerobic fermentation is handled: the solids in solids hopper is sent into anaerobic system by conveyer, and by 2# pond pump
The oil-poor waste water mixing entered, is added anaerobic activated sludge, carries out anaerobic fermentation under certain condition, temperature is 37 DEG C, pH is
6.0, dilution rate 2.0d-1, generate biogas, hydrogen and residue；
S8. fodder is handled: the residue that step S7 is obtained is inoculated with white moth larvae on the 1st, concrete operations: with electronic separate type
Residue is crushed to partial size less than 4mm by meat grinder, is 8.72g/ by the amount that per kilogram residue is inoculated with white moth larvae inoculum on the 1st
Kg is laid in the incubator marked, and thickness is about 6cm, and it is primary that every 36h turns over pile, to polypide by Bai Zhuanhuang, and partization occurs
Temperature is 100 DEG C when pupa phenomenon, and the water vapour that pressure is 2MPa kills moth maggot, handles 25min, sifts out moth maggot, and high speed is shredded
Stirring, revolving speed 8500r/min obtain fodder protein additive, and it is residue under sieving that testing its protein content, which is 88.6%,
Residue is continued to employ；
S9. the residual residue of step S8 domestic fungus cultivating: is added to nutrient solution needed for cultivating needle mushroom, the nutrient solution
Formula are as follows: glucose 10g/L, brown sugar 13g/L, soybean powder 5g/L, potassium dihydrogen phosphate 1.0g/L, magnesium sulfate 1.0g/L, vitamin
B110mg/L, compacting are inoculated with needle mushroom as matrix, and 20-25 DEG C, humidity 75% is cultivated 10 days, is cut after Cordyceps militaris is mature
It removes, it is 10-15cm that detection, which obtains mycelium height, and the diameter average value of umbrella body is 1.52cm, and disease incidence 0.72%, matrix adds
It can be recycled after nutrient solution needed for entering to cultivate needle mushroom.
Comparative example 1
In a kind of method proof before the applicant as comparative example, its step are as follows:
1, needle mushroom dreg powder, dried poultrymanure, vinasse are mixed, EM bacterium stoste and fish meal is added, adds water, mixed
Afterwards, fly maggot culture substrate is made in heap fermentation；Then fly blow is accessed on the fly maggot culture medium again, after 4 days, by fly maggot culture medium
Matter and fly maggot are integrally dried, are ground, and high protein edible bacterium culture medium matrix is made into；Then by high protein edible bacterium culture medium base
Matter, cotton seed hull, wood sawdust, sucrose, land plaster are made into culture medium of edible fungus in the ratio of 45:38:25:2:1.Be inoculated with Cordyceps militaris into
Row culture, the temperature humidity and cultivated days of culture are consistent with embodiment.
It is cut off after Cordyceps militaris is mature, it is 8-10cm that detection, which obtains mycelium height, and the diameter average value of umbrella body is
1.31cm, disease incidence 5.22%, the growing way situation of Cordyceps militaris is than solid culture moth after using kitchen garbage to handle in embodiment 3
The needle mushroom that residual residue after maggot is cultivated is poor, and the cost in the embodiment is apparently higher than the application.
Test example 1
Kitchen garbage processing is carried out using the method for the embodiment of the present invention 3.
Treatment scale: 50 ton/days of 350 ton/days+gutter oil of kitchen garbage
Treatment effect: the project passed through national kitchen castoff resource utilization and harmless treatment pilot city in 2017
City checks and accepts, 140,000 tons of total amount of disposition kitchen garbage in 2016, accumulative production 6,300,000 side of biogas in 2016,2,000,000 side of hydrogen, and 2016
70,000 tons of sewage after year accumulative emission treatment；Accumulative 5000 tons of grease of extraction in 2016, the accumulative protein feed that generates adds within 2016
100 tons of agent, accumulative 200 tons of needle mushroom of production in 2016 realizes the innoxious of kitchen garbage, minimizing and recycling, the technique
Feasibility to sufficiently verifying.
Test example 2
Kitchen garbage processing is carried out using the method for the embodiment of the present invention 2.
Treatment scale: kitchen garbage 200t/d
Treatment effect: the project passed through national kitchen castoff resource utilization and harmless treatment pilot city in 2018
City checks and accepts, and under the influence of African swine fever epidemic situation in 2018, the super Design cooling load operation of the project, the daily kitchen garbage that handles reaches
400 tons, run 2018 140000 tons of total amount of disposition kitchen garbage, 2018 accumulative to produce 6,300,000 side of biogas, 2,000,000 side of hydrogen,
70,000 tons of sewage after accumulative emission treatments in 2018；Accumulative 5000 tons of grease of extraction in 2018, accumulative generation protein feed in 2018
100 tons of additive, the innoxious of kitchen garbage, minimizing and recycling are realized in accumulative 500 tons of mushroom of production in 2016.
Compared with prior art, the present invention is removed moisture most in kitchen garbage drip by draining, mitigates kitchen rubbish
The quality and volume of rubbish, are readily transported, while the waste water in kitchen garbage discharges after processing, improve the utilization of water resource, protect
Retaining ring border；By sorting kitchen garbage, obtained rubbish can be used for recycling, and obtain biogas, hydrogen and feed addition
Agent improves the utilization rate and degradation rate of rubbish；It is extracted by decompression low temperature, most grease is extracted and is made more pure
Crude oil, improve the recovery utilization rate of kitchen garbage, reduce its pollution on the environment, at the same depressurize low temperature extraction be conducive to
Energy consumption is reduced, environment is protected；It is by being mechanically pulverized that bulk rubbish is comminuted, convenient for being mixed with flyash, bentonite, it is added and lives
Property anaerobic sludge, anaerobic bacteria therein highly effective methane-producing, hydrogen under suitable conditions, it is stable and efficiently to produce gas, improves kitchen
Added value is obtained after garbage disposal, biogas, the hydrogen of generation can be used as energy heat production or power generation；It is logical by the residue after anaerobic fermentation
It crosses inoculation screwworm high speed to breed, generates a large amount of fly maggot, crushing obtains high-protein feed additive after killing fly maggot in time,
For the additive as poultry feed, to improve the feed nutrient of poultry, so that poultry growth is rapid；By by residue
The matrix obtained after the mixing of nutrient solution needed for cultivating edible mushroom is added for being inoculated with edible mushroom, is used for using its nutrition abundant
It cultivates edible mushroom and improves the economic value of kitchen garbage so that edible fungi growth is rapid；
Food waste treatment method of the present invention is simple, and residue is few after processing, and kitchen garbage rate of recovery rate height mitigates environment
Pollution, protects environment, and the crude oil of generation can be can be used for burning and generating electricity with secondary use, the biogas of generation, be increased operation rate；
Fodder protein additive can be made simultaneously, improve the nutritional ingredient of poultry feed, so that poultry growth is rapidly, as edible mushroom
Matrix, the economic value of kitchen garbage can be improved, therefore, this method has broad application prospects.
Those skilled in the art is not under conditions of departing from the spirit and scope of the present invention that claims determine, also
Various modifications can be carried out to the above content.Therefore the scope of the present invention is not limited in above explanation, but by
The range of claims determines.
Claims (10)
1. a kind of Food waste treatment method, which is characterized in that successively the following steps are included: draining, garbage sorting, slurrying sieve
Divide, sand setting, filters pressing, three phase separation, anaerobic fermentation processing, fodder handles and domestic fungus cultivating.
2. a kind of Food waste treatment method according to claim 1, which is characterized in that specifically includes the following steps:
S1. it draining: is put into kitchen garbage as treating material in material-receiving device, is delivered to sorter, is dripped in transmission process
Most of free water out is collected the water that drip removes, is discharged after sewage treatment；
S2. garbage sorting: sorter carries out size screening to material, sorts out the coarse sundries of size 50mm or more, sundries on sieve
Solids hopper is delivered to by conveyer, sieves after lower fines falls into fines delivery pump and is pumped into crusher；
S3. slurrying sieve: crusher to fines carry out high speed smash at random, slurrying, while be added water dilution size mixing, formed slurry
Liquid, then slurries are screened out to be not easy to smash, the lower tiny sundries of utility value, it is carefully miscellaneous that solid is slowly conveyed by conveyer
Silo, slurries are conveyed into sand settling machine by conveyer；
S4. sand setting: sand settling machine gravity is settled out the larger substance of specific gravity, and sediment is sent into solids hopper by conveyer, after desanding
Material overflow enter the pond 1#；
S5. filters pressing: heating slurries in the pond 1#, lifts temperature to 40 DEG C or so, and filters pressing processing is press-filtered out size greater than 1mm
Solid sundries, Gu sundries is sent into solids hopper by conveyer, filtrate is from flowing into combination heater；
S6. three phase separation: filtrate is pumped into three-phase separator after being heated to 55 DEG C or more in combination heater, flow is by valve
Control carries out decompression low temperature and extracts, and respectively obtains crude oil rouge, oil-poor waste water, organic solid slag three-phase from the outlet of seperator difference and produces
Object, organic solid slag are sent into solids hopper by conveyer；Crude oil rouge is pumped into settling tank after entering transfer fuel tank, small by about 4
When sedimentation, obtain that quality is preferable, the low crude oil of percentage of impurity；Sediment flows back into the pond 1#；Oil-poor waste water enters the pond 2#,
Wherein as spray water for cleaning, remaining is pumped into anaerobic system for 1/3 reflux；
S7. anaerobic fermentation is handled: the solids in solids hopper is sent into anaerobic system by conveyer, and is pumped by the pond 2#
Oil-poor waste water mixing, is added anaerobic activated sludge, carries out anaerobic fermentation under certain condition, generate biogas, hydrogen and residue；
S8. fodder is handled: the residue that step S7 is obtained is inoculated with first-instar young, and it is primary that every 36h turns over pile, to polypide by white turn
Huang, and occur part pupate phenomenon when with high temperature and high pressure steam kill fly maggot, sift out fly maggot, high speed chopping stirring obtains feed
Protein additive and residual residue, continue to employ；
The residual residue of step S8: being added nutrient solution needed for cultivating edible mushroom by S9. domestic fungus cultivating, and compacting is put as matrix
It is placed under suitable condition and is inoculated with edible mushroom, cultivate 15-30 days, cut off after edible mushroom is mature, matrix, which is added, cultivates edible mushroom institute
It can be recycled after the nutrient solution needed.
3. a kind of Food waste treatment method according to claim 2, which is characterized in that high speed described in step S3 is beaten at random
Broken revolving speed is 10000-15000r/min.
4. a kind of Food waste treatment method according to claim 2, which is characterized in that decompression body temperature described in step S6 mentions
The condition taken is -0.08MPa, 70 DEG C, extracts 2-5h.
5. a kind of Food waste treatment method according to claim 2, which is characterized in that anaerobic fermentation item described in step S7
Part be temperature be 37 DEG C, pH 6.0, dilution rate 1.0-4.0d-1。
6. a kind of Food waste treatment method according to claim 2, which is characterized in that high temperature and pressure described in step S8 is steamed
Vapour is that temperature is 100 DEG C, and pressure is the water vapour of 2MPa；The high temperature and high pressure steam processing time is 15-30min.
7. a kind of Food waste treatment method according to claim 2, which is characterized in that larva described in step S8 is grey
One or more of fly, black soldier flies, aphis lion, white moth and ladybug, preferably black soldier flies.
8. a kind of Food waste treatment method according to claim 2, which is characterized in that forage protein described in step S8 adds
Add agent to can be used as protein to be added in poultry feed.
9. a kind of Food waste treatment method according to claim 2, which is characterized in that shredded at a high speed described in step S8
Revolving speed is 7000-10000r/min.
10. a kind of Food waste treatment method according to claim 2, which is characterized in that eat bacterium bag described in step S9
Include Cordyceps militaris, needle mushroom, mushroom, agaric, Hericium erinaceus, coprinus comatus, hickory chick, saddle fungus, ferfas, straw mushroom, oyster mushroom, elegant precious mushroom,
One or more of Pleurotus eryngii, agrocybe, tremella, bolete, russule, dictyophora phalloidea, dried mushroom, Trichotoma matsutake and ganoderma lucidum.
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| CN110616154A (en) * | 2019-09-27 | 2019-12-27 | 江西省农业科学院农产品质量安全与标准研究所 | Cordyceps militaris cultured by taking hermetia illucens pupae as host and culturing method thereof |
| CN111085526A (en) * | 2019-12-31 | 2020-05-01 | 宁波开诚生态技术有限公司 | Method for treating small-scale kitchen waste in cities and towns |
| CN112251331A (en) * | 2020-10-19 | 2021-01-22 | 中国天楹股份有限公司 | Dry anaerobic fermentation system for dry and wet sorting pretreatment of kitchen waste and treatment method thereof |
| CN112690252A (en) * | 2021-01-05 | 2021-04-23 | 江苏中车环保设备有限公司 | System and method for treating sterile kitchen waste and feeding hermetia illucens in cooperation |
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