CN103332969A - Treatment method for fermentation of kitchen waste into fertilizer - Google Patents
Treatment method for fermentation of kitchen waste into fertilizer Download PDFInfo
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- CN103332969A CN103332969A CN2013102787642A CN201310278764A CN103332969A CN 103332969 A CN103332969 A CN 103332969A CN 2013102787642 A CN2013102787642 A CN 2013102787642A CN 201310278764 A CN201310278764 A CN 201310278764A CN 103332969 A CN103332969 A CN 103332969A
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- food waste
- changing food
- treatment process
- acinetobacter calcoaceticus
- adsorption unit
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
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- Processing Of Solid Wastes (AREA)
- Fertilizers (AREA)
Abstract
The invention relates to a treatment method for fermentation of kitchen waste into a fertilizer. The method mainly improves the treatment effects of a kitchen waste treatment machine from two aspects, and ferments kitchen waste to produce a bio-fertilizer. The method includes: (1) artificially adding Acinetobacter calcoaceticus strain B40 in a kitchen waste treatment process, with the adding amount reaching over 10<5>CFU per gram of kitchen waste; and (2) employing a composite adsorbing material to adsorb pungent smell generated in the fermentation process. The composite adsorbing material is composed of rice bran, sawdust and activated carbon in a ratio of 10-20:3-5:1. The bio-fertilizer produced by the method has the characteristics of low oil content and small pungent smell during production.
Description
Technical field
The invention belongs to the microbial fermentation field, be specifically related to a kind of method of utilizing changing food waste fermentation to produce biological fertilizer.
Background technology
Changing food waste is the chief component of rubbish, and the rubbish total amount has accounted for about 30%～40% of domestic waste.Changing food waste is to produce unpleasant odor, grow mosquitos and flies, cause disease to relay, the one of the main reasons of underground water source and environmental pollution contains a large amount of leftovers soup, puke etc. and pollutes easily in refuse collection, transportation in the changing food waste, also be the main source of percolate from garbage filling field simultaneously, present changing food waste livestock and poultry such as be used for greatly feeding pigs, when animal such as being used for feeding pigs, pathology takes place in haslet easily, and then works the mischief to people are healthy.We can say that a changing food waste problem resolved, the problem of domestic waste has just solved easily.
Refuse treatment is innoxious to realize, minimizing, resource turn to ultimate aim.Life refuse processing method commonly used at present mainly contains sanitary landfill, burning and compost.The landfill operation mode is simple, invests for a short time, and running cost is low, but the water from diffusion intractability is bigger, and do not take full advantage of recyclable resource in the rubbish, and particularly more and more becoming today of precious resources in the soil, the soil of suitable construction refuse landfill is fewer and feweri.Produce steam-electric power in the waste incineration process and make rubbish become " energy ", can realize its " resource utilization " target; But the burning facility one-time investment is big, the running cost height, and the difficulty of the pollution that removes smoke is bigger.Burning can produce two uh toxic and harmfuls such as English pollution and burn after ashes soil is had huge toxic action.
Composting technology is microorganism or the commercial strain that utilizes nature extensively to exist, and controlledly promotes the Biochemical processes that biodegradable organism transforms to stable soil ulmin.Domestic waste is carried out compost treatment, at first perishable organism wherein can be converted into the acceptant organic nutrient soil of soil.Secondly the thermophilic fermentation in the composting process is killed pathogenic bacterium, parasitic ovum in the rubbish substantially.Concentrated compost treatment also exists the place demand big, problems such as transportation cost height.
Another kind of advanced changing food waste treatment process is to adopt the changing food waste dedicated processor huge numbers of families changing food waste to be processed into fertilizer, is used for vegetable fertilizers such as afforestation.Changing food waste biological treatment machine is a kind of for the treatment of those perishable meal kitchen organic wastes, as the brand-new specific equipment of food refuses such as leftovers, leftovers, pericarp, dish leaf, swill.In machine, having preset with solid-state is the microorganism of carrier, and suitable temperature, humidity and oxygen supply condition is provided.Rubbish is put in the machine, after 24 hours, just can be with these garbage decomposition more than 90%.The Guangzhou Fanyu District is after the garbage incinerating power plant project is suspended, and meal kitchen equipment such as food waste pulverizer, shunting changing food waste are used test spread in proposition.
Family expenses changing food waste handler mainly has problems to containing a large amount of salinities and grease in the rubbish at present, and the fertilizer of fermentative production has adverse influence to farm crop.The peculiar smell of changing food waste handler generation simultaneously influences the changing food waste treatment facility in the use of family.
Existing adsorption unit is contained in changing food waste handler exhaust outlet, and adopting activated carbon mostly is sorbent material, but bigger to air resistance with activated carbon separately, and gas is not easy by, existing apparatus some need be added exhaust blower gas is passed through from sorbent material.
Summary of the invention
The technical problem to be solved in the present invention, it is the above-mentioned deficiency at prior art, a kind of method of utilizing changing food waste fermentation to produce biological fertilizer is provided, can reduces the grease in the changing food waste effectively rapidly, and improve existing adsorption unit to remove the peculiar smell that the changing food waste handler produces.
In order to solve the problems of the technologies described above, technical scheme of the present invention may further comprise the steps:
A kind for the treatment of process of changing food waste fermentation fertilizer adds acinetobacter calcoaceticus and ferments in changing food waste.
Further, described acinetobacter calcoaceticus is Acinetobacter calcoaceticus strain B40.
Described leavening temperature is 54 ~ 58 ℃, and fermentation time is 1 ~ 2 day.
Described acinetobacter calcoaceticus addition is every gram changing food waste 10
5More than the CFU.
Acinetobacter calcoaceticus of the present invention prepares by the following method: at the bacterial classification Acinetobacter calcoaceticus strain B40 of slant medium inoculation preservation, cultivated 2 ~ 3 days or further in the eggplant bottle, spread cultivation for 40 ~ 50 ℃, cultivate after 2 ~ 3 days, or adopt fermentor tank on the basis, test tube slant, ventilation 0.05 ~ 0.2vvm, further after the enlarged culturing, behind the centrifugal or filtering separation thalline with the mixed of weighting agents such as bacterium mud and wood chip with 1:4 ~ 6, again 45 ~ 55 ℃ of oven dry as microbial inoculum, scrape from the inclined-plane with sterilized water again and pour into the changing food waste, the prescription of described substratum is NaCl 4.0 ~ 6.0 g, KH
2PO
40.2 ~ 0.4 g, MgSO
4.7HO
20.06 ~ 0.14 g, K
2HPO
40.2 ~ 0.4 g, (NH4)
2SO
40.8 ~ 1.2 g, sweet oil 8 ~ 10ml, adds water to 1000ml at agar 17-20g.
The present invention also comprises the step of carrying out vent gas treatment by adsorption unit, and described adsorption unit contains composite adsorbing material, and the composite adsorbing material proportioning is rice bran: wood chip: activated carbon=10～20:3 ~ 5:1.
Described adsorption unit is made up of the pipeline of the sieve plate sealing at two ends, and described composite adsorbing material is added between the sieve plate at two ends.
Described adsorption unit material is plastics or stainless material.
Particularly, the concrete treating processes of the present invention is as follows:
S1. microbiobacterial agent is prepared: at slant medium (culture medium prescription: NaCl 4.0 ~ 6.0 g, KH
2PO
40.2 ~ 0.4 g, MgSO
4.7HO
20.06 ~ 0.14 g, K
2HPO
40.2 ~ 0.4 g, (NH4)
2SO
40.8 ~ 1.2 g, sweet oil 8 ~ 10ml, adds water to 1000ml at agar 17-20g.) the last bacterial classification Acinetobacter calcoaceticus strain B40 that inoculates preservation, cultivate after 2 days to scrape from the inclined-plane with sterilized water for 40 ~ 50 ℃ and pour into the changing food waste, or further in the eggplant bottle, spread cultivation (substratum is the same), cultivate after 2 days, scrape from the inclined-plane with sterilized water and to pour into the changing food waste, also can adopt fermentor tank (the same slant medium of substratum) on the basis, test tube slant, ventilation 0.05 ~ 0.2vvm(fermented liquid volume/min), further after the enlarged culturing, behind the centrifugal or filtering separation thalline with the mixed of weighting agents such as bacterium mud and wood chip with 1:4 ~ 6, again 45 ~ 55 ℃ of oven dry as microbial inoculum.
S2., adsorption unit is installed: on the kitchen garbage disposer exhaust outlet that meals at home adsorption unit is installed, adsorption unit is made up of the pipeline of sieve plate sealing two ends, the adsorption unit material can be plastics or stainless material, the sieve plate of closed at both ends can take out, add sorbing material between the sieve plate of closed at both ends, the sorbing material proportioning is rice bran: wood chip: activated carbon=10～20:3 ~ 5:1.
S3. add acinetobacter calcoaceticus: add acinetobacter calcoaceticus Acinetobacter calcoaceticus strain B40 in the changing food waste handler, addition reaches every gram changing food waste 10
5More than the CFU.Setting treatment temp is 54 ~ 58 ℃, handles after 1 ~ 2 day, namely can be used as bio-feritlizer and uses.
Compared with prior art, the present invention has following beneficial effect:
The present invention is by adding acinetobacter calcoaceticus Acinetobacter calcoaceticus strain B40, fermentation to produce biological fertilizer to changing food waste.The bacterial classification Acinetobacter calcoaceticus strain B40 that adds can reduce the grease in the changing food waste effectively rapidly, the gained organic fertilizer can increase the activity of soil microorganisms, and it is better to the promoter action of soil microbial biomass than the chemical fertilizer of nitrogen phosphorus potassium such as applying.
Simultaneously, the sorbing material that the adsorption unit of setting adopts has added some and has obtained easily and little, the lower-cost rice bran of resistance, wood chip, and the gas that makes fermentation produce passes through easily.It is low that the bio-feritlizer that the method for the invention is produced has oleaginousness, the characteristics that production process moderate stimulation smell is little.
Embodiment
Embodiment 1:
Microbiobacterial agent is prepared, at slant medium (culture medium prescription: NaCl 5.0 g, KH
2PO
40.3 g, MgSO
4.7HO
20.1 g, K
2HPO
40.3 g, (NH4)
2SO
41.0 g, sweet oil 10ml, agar 17-20g, water 1000ml.) go up inoculation bacterial classification Acinetobacter calcoaceticus strain B40, cultivate and put refrigerator after 2 days.
The kitchen garbage disposer (Shenzhen grand duke's mechano-electronic company limited produce, treatment capacity 4kg/ days) that meals at home, venting port on adsorption unit is installed, adsorption unit interior diameter 25mm, length 10cm adds sorbent material 25 grams and (contains rice bran 18.5 grams in the sorbent material, wood chip 5 grams, activated carbon 1.5 grams).
In the changing food waste handler, add the about 2kg of changing food waste, adding tap water at slant medium washes Acinetobacter calcoaceticus strain B40 on the changing food waste, set 55 ℃ of working temperatures, work after 2 days, obtain bio-feritlizer 300g.
Embodiment 2:
Microbiobacterial agent is prepared, at slant medium (culture medium prescription: NaCl 5.0 g, KH
2PO
40.3 g, MgSO
4.7HO
20.1 g, K
2HPO
40.3 g, (NH4)
2SO
41.0 g, sweet oil 10ml, agar 17-20g, water 1000ml) go up and inoculate bacterial classification Acinetobacter calcoaceticus strain B40, cultivate after 2 days, be inoculated into the 30L fermentor tank, the canned dress substratum 20L(culture medium prescription that ferments is NaCl 100 g, KH
2PO
430 g, MgSO
4.7HO
210 g, K
2HPO
430 g, (NH4)
2SO
4100 g, sweet oil 1000ml) leavening temperature is 50 ℃, ventilation 2L/min, and the centrifugation thalline after 2 days that ferments gets bacterium mud 40g and mixes with the 200g wood chip, 50 ℃ of drying for standby.
In changing food waste handler (Shenzhen grand duke's mechano-electronic company limited produce, treatment capacity 100kg/ days), venting port on adsorption unit is installed, adsorption unit diameter 50mm, length 20cm adds sorbent material 200 grams and (contains rice bran 150 grams in the sorbent material, wood chip 40 grams, activated carbon 10 grams).
In the changing food waste handler, add the about 60kg of changing food waste, add Acinetobacter calcoaceticus strain B40 microbial inoculum 100g.Set 55 ℃ of working temperatures, work after 1 day, obtain bio-feritlizer 10kg, take out 8kg, residue 2kg can be used as fermented bacterium continuation interpolation changing food waste and produces bio-feritlizer continuously.
Claims (9)
1. the treatment process of a changing food waste fermentation fertilizer is characterized in that, adds acinetobacter calcoaceticus and ferment in changing food waste.
2. the treatment process of changing food waste fermentation fertilizer according to claim 1 is characterized in that, described acinetobacter calcoaceticus is Acinetobacter calcoaceticus strain B40.
3. the treatment process of changing food waste fermentation fertilizer according to claim 1 is characterized in that, described leavening temperature is 54 ~ 58 ℃, and fermentation time is 1 ~ 2 day.
4. the treatment process of changing food waste fermentation fertilizer according to claim 1 and 2 is characterized in that, described acinetobacter calcoaceticus addition is every gram changing food waste 10
5More than the CFU.
5. according to the treatment process of claim 1 or 2 or 3 described changing food waste fermentation fertilizers, it is characterized in that, described acinetobacter calcoaceticus prepares by the following method: at the bacterial classification Acinetobacter calcoaceticus strain B40 of slant medium inoculation preservation, cultivated 2 ~ 3 days or further in the eggplant bottle, spread cultivation for 40 ~ 50 ℃, cultivate after 2 ~ 3 days, or adopt fermentor tank on the basis, test tube slant, ventilation 0.05 ~ 0.2vvm, further after the enlarged culturing, behind the centrifugal or filtering separation thalline with the mixed of weighting agents such as bacterium mud and wood chip with 1:4 ~ 6, again 45 ~ 55 ℃ of oven dry as microbial inoculum, scrape from the inclined-plane with sterilized water again and pour into the changing food waste, the prescription of described substratum is NaCl 4.0 ~ 6.0 g, KH
2PO
40.2 ~ 0.4 g, MgSO
4.7HO
20.06 ~ 0.14 g, K
2HPO
40.2 ~ 0.4 g, (NH4)
2SO
40.8 ~ 1.2 g, sweet oil 8 ~ 10ml, adds water to 1000ml at agar 17 ~ 20g.
6. the treatment process of changing food waste fermentation fertilizer according to claim 1, it is characterized in that also comprising the step of carrying out vent gas treatment by adsorption unit, described adsorption unit contains composite adsorbing material, and the composite adsorbing material proportioning is rice bran: wood chip: activated carbon=10～20:3 ~ 5:1.
7. the treatment process of changing food waste fermentation fertilizer according to claim 6 is characterized in that described adsorption unit is made up of the pipeline of the sieve plate sealing at two ends, and described composite adsorbing material is added between the sieve plate at two ends.
8. according to the treatment process of claim 6 or 7 described changing food waste fermentation fertilizers, it is characterized in that described adsorption unit material is plastics.
9. according to the treatment process of claim 6 or 7 described changing food waste fermentation fertilizers, it is characterized in that described adsorption unit material is stainless material.
Priority Applications (1)
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|---|---|---|---|
| CN2013102787642A CN103332969A (en) | 2013-07-04 | 2013-07-04 | Treatment method for fermentation of kitchen waste into fertilizer |
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|---|---|---|---|
| CN2013102787642A CN103332969A (en) | 2013-07-04 | 2013-07-04 | Treatment method for fermentation of kitchen waste into fertilizer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105016801A (en) * | 2015-07-03 | 2015-11-04 | 上海工程技术大学 | Vegetable and fruit waste integrated treatment process |
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Cited By (2)
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Application publication date: 20131002 |