CN105906390A - Method for treating kitchen waste - Google Patents
Method for treating kitchen waste Download PDFInfo
- Publication number
- CN105906390A CN105906390A CN201610513605.XA CN201610513605A CN105906390A CN 105906390 A CN105906390 A CN 105906390A CN 201610513605 A CN201610513605 A CN 201610513605A CN 105906390 A CN105906390 A CN 105906390A
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- CN
- China
- Prior art keywords
- food waste
- black soldier
- soldier flies
- treatment method
- debirs
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- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F3/00—Fertilisers from human or animal excrements, e.g. manure
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K67/00—Rearing or breeding animals, not otherwise provided for; New breeds of animals
- A01K67/033—Rearing or breeding invertebrates; New breeds of invertebrates
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- 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
- C05F17/05—Treatments involving invertebrates, e.g. worms, flies or maggots
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/87—Re-use of by-products of food processing for fodder production
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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
- 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 relates to a method for treating kitchen waste. The method comprises the following steps: (1) removing non-organic impurities which can not be treated and are of black soldier fly larvae in the kitchen waste, and then measuring the oil content, salinity, water content and carbon nitrogen ratio of the black soldier fly larvae; (2) adding rice field straw or/and rotten fruit, vegetables and the like for adjusting the content of carbon element, and adding poultry and livestock manure such as chicken manure or/and pig manure for adjusting the content of nitrogen element; (3) crushing the obtained mixture, putting into a homogeneous pool, stirring and fermenting to obtain a mixed organic waste which is in accordance with the growth indexes of the black soldier fly larvae; (4) inoculating the black soldier fly larvae; (5) treating the mixed organic waste under the conditions that the temperature is 26-28 DEG C, the relative humidity is 40-50% and the illumination intensity is lower than 25 lx; (6) separating out treatment residue and black soldier fly bodies; (7) treating the residue by means of natural compost to obtain an organic fertilizer. After the method is used for treating the kitchen waste, the treatment efficiency of the kitchen waste is improved, and the yield of the black soldier fly bodies is increased.
Description
Technical field
The present invention relates to a kind of Food waste treatment method.
Background technology
At present, Food waste treatment method has changing food waste is carried out solid-liquid separation, and liquid fat carries out biodiesel process, and solid residue is processed by black soldier flies larva, wherein, owing to the equipment investment of biodiesel is relatively big, general changing food waste treatment plant cannot undertake, so causing its liquid fat processed in changing food waste to have bigger difficulty, furthermore, owing to oils and fats can block the spiracle of black soldier flies larva, cause larva anoxia, thus black soldier flies larva can not survive in oils and fats.Additionally, due to the salinity of changing food waste and the problem such as water content is too high and carbon-nitrogen ratio is unreasonable, it is unfavorable for black soldier flies larval feeding, activity and grows, thus affecting changing food waste treatment effeciency and black soldier flies polypide yield.
Summary of the invention
The technical problem to be solved is, for existing changing food waste due to fat content too much, salinity and water content is too high and carbon-nitrogen ratio is unreasonable etc. and be unfavorable for the situation that black soldier flies larva processes, it is provided that a kind of Food waste treatment method being conducive to black soldier flies larva process changing food waste.
The technical solution adopted for the present invention to solve the technical problems is: a kind of Food waste treatment method, comprises the following steps:
(1), after the non-organic impurity that cannot be processed by black soldier flies larva in changing food waste is rejected, its fat content, salinity, water content and carbon-nitrogen ratio are calculated;
(2) add rice field straw or/and rot fruit vegetable etc. regulate carbon element content in changing food waste, add chicken manure or/and the fowl and animal excrements such as pig manure regulate nitrogen element content in changing food waste so that it is the carbon-nitrogen ratio of mixture is between 30-31:1;
(3) after step (2) gained mixture being smashed, it is stirred in being placed in homogenizing pond, and adds fermented bacterium fermentation, obtain meeting the mixing debirs of black soldier flies larval growth index;
(4) in step (3) gained mixing debirs, black soldier flies larva is inoculated;
(5) under conditions of temperature 26-28 DEG C, relative humidity 40-55%, intensity of illumination are less than 25lx, carry out mixing debirs to process;
(6) process residue and black soldier flies polypide are separated;
(7) process residue and pass through Natural compost, obtain fertilizer.
Further, in step (2), added rice field straw is or/and rot fruit vegetable etc. and step (1) the described changing food waste preferred 1:3-5 of mass ratio, more preferably 1:4.5;Added chicken manure is or/and the preferred 1:1.5-2.0 of mass ratio, more preferably 1:1.8 of the fowl and animal excrements such as pig manure etc. and step (1) described changing food waste.
Further, in step (3), described fermented bacterium includes photosynthetic bacteria, lactic acid bacteria, yeast, actinomycetes and nitrogen-fixing bacteria etc.;The time of described fermentation is 22-36 hour, preferably 30 hours.
Further, in step (3), described in meet in the mixing debirs of black soldier flies larval growth index, fat content 0.40-0.48wt%, the preferred 0.2wt% of salinity 0.15-0.25wt%(), the preferred 30wt% of water content 25-35wt%(), carbon-nitrogen ratio 30-33:1.
Further, in step (4), in the ratio of step (3) gained mixing debirs 50000-100000 black soldier flies larva of every 100 jin of inoculations, inoculate black soldier flies larva.
Further, in step (5), process preferred 5-7 days of cycle.
Further, in step (6), use the vibrosieve of 3-5 mesh (preferably 4 mesh) specification to go out to process residue, use the vibrosieve of 5-8 mesh (preferably 6 mesh) specification to separate black soldier flies polypide.
Further, in step (7), the time of Natural compost is 9-11 days, preferably 10 days.
Research practice shows, by rice field straw or/and rot fruit vegetable etc. mix with without the changing food waste of solid-liquid separation smashes, can effectively dilute and stable grease, regulation water content and salinity, it is easy to black soldier flies larval feeding and activity.In addition, owing to the fluctuation of changing food waste carbon-nitrogen ratio is bigger, black soldier flies larva polypide is caused to grow uneven, impact eventually serves as the quality of living insects feedstuff, by adding chicken manure or/and fowl and animal excrements such as pig manures, can improve the nitrogen element content in mixing debirs, so that the more untreated changing food waste of nutrition of black soldier flies larva picked-up more equalizes, the process cycle can shorten 1-2 days.
Compared with prior art, utilize the present invention can solve the intractable problem of liquid fat during changing food waste processes, simplify processing routine, and can also other debirs such as Combined Treatment rice field straw, rot fruit vegetable, fowl and animal excrement;Utilize the present invention to process changing food waste, treatment effeciency and the yield of black soldier flies polypide of changing food waste can be improved.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described.
Embodiment
1
The Food waste treatment method of the present embodiment, comprises the following steps:
(1) the non-organic impurity that cannot be processed by black soldier flies larva in changing food waste by screening machine is rejected, and by stochastical sampling, calculates its fat content (0.83wt%), salinity (0.65wt%), water content (70wt%) and carbon-nitrogen ratio (23:1);
(2) add rice field straw (rice field straw and changing food waste mass ratio are 1:4.5) regulation carbon element content, add chicken manure (chicken manure and changing food waste mass ratio are 1:1.8) regulation nitrogen element content, come balanced nutritious with this;
(3) after the mixing of step (2) gained material being smashed, it is stirred in being placed in homogenizing pond, and add fermented bacterium (including photosynthetic strain, lactobacillus inoculation, barms, unwrapping wire strain and fixed nitrogen strain) and ferment 30 hours, obtain meeting the mixing debirs of black soldier flies larval growth index, its fat content 0.43wt%, salinity 0.2wt% and water content 30wt%, carbon-nitrogen ratio 31:1;
(4) in the ratio of mixing debirs 75000 black soldier flies larvas of every 100 jin of inoculations, inoculate black soldier flies larva, and send into process workshop;
(5) process workshop to be carried out mixing debirs processed (naturally placing) by temperature 27 DEG C, relative humidity 55%, the intensity of illumination control condition less than 25lx;
(6), after the process cycle reaches 6 days, use the vibrosieve of 4 mesh specifications to go out to process residue, use the vibrosieve of 6 mesh specifications to separate black soldier flies polypide;
(7) process residue and pass through Natural compost 10 days, obtain fertilizer.
Research practice shows, utilizes the present invention can not only solve the intractable problem of liquid fat during changing food waste processes, simplifies processing routine, and can also other debirs such as Combined Treatment rice field straw, fowl and animal excrement (chicken manure);Utilize the present invention can improve treatment effeciency and the yield of black soldier flies polypide of changing food waste.
Embodiment
2
The Food waste treatment method of the present embodiment, comprises the following steps:
(1) the non-organic impurity that cannot be processed by black soldier flies in changing food waste by screening machine is rejected, and by stochastical sampling, measuring and calculating fat content (0.98wt%), salinity (0.77wt%), water content (76wt%) and carbon-nitrogen ratio (20:1);
(2) adding the mixture regulation carbon element content of rot fruit vegetable and rice field straw, wherein rot fruit vegetable is 1:1 with the mass ratio of rice field straw, and this mixture and changing food waste mass ratio are 1:4.5;Adding the mixture regulation nitrogen element content of pig manure and chicken manure, wherein the mass ratio of pig manure and chicken manure is 1:1, and this mixture and changing food waste mass ratio are 1:1.8, comes balanced nutritious with this;
(3) after the mixing of step (2) gained material being smashed, it is stirred in being placed in homogenizing pond, and add fermented bacterium (including photosynthetic strain, lactobacillus inoculation, barms, unwrapping wire strain, fixed nitrogen strain) and ferment 30 hours, obtain meeting the mixing debirs of black soldier flies larval growth index, its fat content 0.40wt%, salinity 0.15wt% and water content 28wt%, carbon-nitrogen ratio 31:1;
(4) in the ratio of mixing debirs 100000 black soldier flies larvas of every 100 jin of inoculations, inoculate black soldier flies larva, and send into process workshop;
(5) process workshop to be carried out mixing debirs processed (naturally placing) by temperature 27 DEG C, relative humidity 50%, the intensity of illumination control condition less than 25lx;
(6), after the process cycle reaches 7 days, use the vibrosieve of 4 mesh specifications to go out to process residue, use the vibrosieve of 6 mesh specifications to separate black soldier flies polypide;
(7) process residue and pass through Natural compost 10 days, obtain fertilizer.
Research practice shows, utilizes the present invention can not only solve the intractable problem of liquid fat during changing food waste processes, and simplifies processing routine, and can also Combined Treatment rot fruit vegetable and rice field straw, other debirs such as fowl and animal excrement (pig manure, chicken manure);Utilize the present invention can improve treatment effeciency and the yield of black soldier flies polypide of changing food waste.
Embodiment
3
The Food waste treatment method of the present embodiment, comprises the following steps:
(1) the non-organic impurity that cannot be processed by black soldier flies in changing food waste by screening machine is rejected, and by stochastical sampling, measuring and calculating fat content (0.91wt%), salinity (0.71wt%), water content (74wt%) and carbon-nitrogen ratio (21:1);
(2) adding rot fruit vegetable regulation carbon element content, rot fruit vegetable and changing food waste mass ratio are 1:3, add pig manure regulation nitrogen element content, and pig manure and changing food waste mass ratio are 1:2, come balanced nutritious with this;
(3) after the mixing of step (2) gained material being smashed, it is stirred in being placed in homogenizing pond, and add fermented bacterium (including photosynthetic strain, lactobacillus inoculation, barms, unwrapping wire strain, fixed nitrogen strain) and ferment 22 hours, obtain meeting the mixing debirs of black soldier flies larval growth index, its fat content 0.47wt%, salinity 0.18wt% and water content 35wt%, carbon-nitrogen ratio 30:1;
(4) in the ratio of mixing debirs 50000 black soldier flies larvas of every 100 jin of inoculations, inoculate black soldier flies larva, and send into process workshop;
(5) process workshop to be carried out mixing debirs processed (naturally placing) by temperature 27 DEG C, relative humidity 50%, the intensity of illumination control condition less than 25lx;
(6), after the process cycle reaches 7 days, use the vibrosieve of 4 mesh specifications to go out to process residue, use the vibrosieve of 6 mesh specifications to separate black soldier flies polypide;
(7) process residue and pass through Natural compost 10 days, obtain fertilizer.
Research practice shows, utilizes the present invention can not only solve the intractable problem of liquid fat during changing food waste processes, and simplifies processing routine, and can also Combined Treatment rot fruit vegetable, other debirs such as fowl and animal excrement (pig manure);Utilize the present invention can improve treatment effeciency and the yield of black soldier flies polypide of changing food waste.
Claims (8)
1. a Food waste treatment method, it is characterised in that comprise the following steps:
(1), after the non-organic impurity that cannot be processed by black soldier flies larva in changing food waste is rejected, its fat content, salinity, water content and carbon-nitrogen ratio are calculated;
(2) add rice field straw or/and rot fruit vegetable regulates carbon element content in changing food waste, add chicken manure or/and pig manure regulates nitrogen element content in changing food waste so that it is the carbon-nitrogen ratio of mixture is between 30-31:1;
(3) after step (2) gained mixture being smashed, it is stirred in being placed in homogenizing pond, and adds fermented bacterium fermentation, obtain meeting the mixing debirs of black soldier flies larval growth index;
(4) in step (3) gained mixing debirs, black soldier flies larva is inoculated;
(5) under conditions of temperature 26-28 DEG C, relative humidity 40-55%, intensity of illumination are less than 25lx, carry out mixing debirs to process;
(6) process residue and black soldier flies polypide are separated;
(7) process residue and pass through Natural compost, obtain fertilizer.
Food waste treatment method the most according to claim 1, it is characterized in that, in step (2), added rice field straw is or/and rot fruit vegetable and step (1) described changing food waste mass ratio are 1:3-5, and added chicken manure is or/and the mass ratio of pig manure and step (1) described changing food waste is 1:1.5-2.0.
Food waste treatment method the most according to claim 1 and 2, it is characterised in that in step (3), described fermented bacterium includes photosynthetic bacteria, lactic acid bacteria, yeast, actinomycetes and nitrogen-fixing bacteria;The time of described fermentation is 22-36 hour.
Food waste treatment method the most according to claim 1 and 2, it is characterised in that in step (3), in the described mixing debirs meeting black soldier flies larval growth index, fat content 0.40-0.48wt%, salinity 0.15-0.25wt%, water content 25-35wt%, carbon-nitrogen ratio 30-33:1.
Food waste treatment method the most according to claim 1 and 2, it is characterised in that in step (4), in the ratio of step (3) gained mixing debirs 50000-100000 black soldier flies larva of every 100 jin of inoculations, inoculates black soldier flies larva.
Food waste treatment method the most according to claim 1 and 2, it is characterised in that in step (5), the process cycle is 5-7 days.
Food waste treatment method the most according to claim 1 and 2, it is characterised in that in step (6), uses the vibrosieve of 3-5 mesh specification to go out to process residue, uses the vibrosieve of 5-8 mesh specification to separate black soldier flies polypide.
Food waste treatment method the most according to claim 1 and 2, it is characterised in that in step (7), the time of Natural compost is 9-11 days.
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CN106538478A (en) * | 2016-10-27 | 2017-03-29 | 陈维权 | The method and Ecocyclic cultivation method of feces of livestock and poultry are processed using black soldier flies |
CN106540951A (en) * | 2016-09-30 | 2017-03-29 | 湖南帝星智能科技有限公司 | A kind of Food waste treatment method based on bioconversion |
CN107282590A (en) * | 2017-05-10 | 2017-10-24 | 浙江青草地环境科技有限公司 | A kind of method that utilization black soldier flies handle organic degradable garbage |
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CN107318461A (en) * | 2017-07-13 | 2017-11-07 | 浙江科技学院 | King's spherical cap bacterium implantation methods and planting unit |
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CN107410775A (en) * | 2017-05-19 | 2017-12-01 | 刘德江 | Method for processing kitchen waste |
CN107594234A (en) * | 2017-10-27 | 2018-01-19 | 银川保绿特生物技术有限公司 | It is a kind of to be used to cultivate biological composite interstitial substance of black soldier flies and preparation method thereof |
CN107986830A (en) * | 2017-12-18 | 2018-05-04 | 广东惜福环保科技有限公司 | The processing method of kitchen garbage and its organic fertilizer of preparation |
CN108041283A (en) * | 2017-12-12 | 2018-05-18 | 吉林农业大学 | Black soldier flies feed and the method for feed breeding black soldier flies prepared by organic waste |
CN108094692A (en) * | 2017-12-20 | 2018-06-01 | 北京昊业怡生科技有限公司 | Utilize the method for black soldier flies processing humified material |
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