CN103964902A - Food waste treatment method - Google Patents
Food waste treatment method Download PDFInfo
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- CN103964902A CN103964902A CN201310030482.0A CN201310030482A CN103964902A CN 103964902 A CN103964902 A CN 103964902A CN 201310030482 A CN201310030482 A CN 201310030482A CN 103964902 A CN103964902 A CN 103964902A
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- solid refuse
- storehouse
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- waste
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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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- 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
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- Processing Of Solid Wastes (AREA)
Abstract
The present invention provides a food waste in situ treatment method, which comprises: A, carrying out solid-liquid separation on food waste; B, carrying out a biochemical treatment on the separated solid waste in a treatment bin to form an organic fertilizer master batch; C, carrying out a composting treatment on the organic fertilizer master batch to form an organic fertilizer; and D, screening the organic fertilizer. According to the present invention, the food waste treatment equipment is placed on restaurants, party and government organs, enterprises and institutions, university sites and other waste generation places, the organic domestic food waste is regularly or irregularly treated before rotting so as to reduce the waste transfer link, and the harmless in situ treatment is performed to convert the food waste into the organic fertilizer master batch so as to achieve control of the food waste from the source, such that the waste transportation cost and the landfill burning cost are reduced, and the odor generation during the waste fermentation process is reduced, wherein the whole treatment process is completely sealed.
Description
Technical field
The present invention relates to technology of garbage disposal field, a kind of method that particularly changing food waste is processed.
Background technology
The promptness of refuse treatment is extremely important, and the past is passed through the processing modes such as anaerobically fermenting and aerobic fermentation after employing landfill, mixed burning, directly fodder processing, first sorting fragmentation conventionally again.
For adopting land-fill method treating refuse, not only need to take very large storage capacity, and waste gas grease produces secondary pollution to soil and groundwater, also can increase the load of landfill yard, and along with the increase of amount of landfill, difficulty also can increase.
Adopt mixed burning treating refuse, because liquid in composting causes burning difficulty, and the calorific value producing is low, not only causes the waste of the energy, but also pollutes the environment.
For direct fodder processing treatment rubbish, although can produce higher economic worth, because its product enters food chain again, be difficult to avoid the problems such as homology of albumen, there is food safety hidden danger.
And the processing of anaerobically fermenting, because Zha He natural pond, the natural pond liquid producing is dealt with improperly and can be caused secondary pollution.
When simple aerobic fermentation technology opening moves, taste is large, contaminate environment, and exist the incomplete problem of organic matter decomposition.
How making garbage processing procedure safety, environmental protection, is a problem demanding prompt solution.
Summary of the invention
In view of this, a kind of method that provides changing food waste to process is provided main purpose of the present invention, and the peculiar smell that reduces garbage processing procedure produces and produce the problems such as stench.
The invention provides a kind of method that changing food waste is processed, comprise the steps: that A. carries out solid-liquid separation by changing food waste; B. isolated solid refuse is formed to fertilizer masterbatch in processing storehouse by biochemical treatment; C. described fertilizer masterbatch is become thoroughly decomposed to process and form organic fertilizer; D. described organic fertilizer is sieved.
By food waste treatment equipment is placed in to hotel, restaurant, hospital, community, Party and government offices, enterprises and institutions, the on-the-spot rubbish that waits of universities and colleges produces ground, timing or not timing ground are put into domestic organic food rubbish wherein and are processed, organic waste is processed before not rotting, treating processes has reduced waste flow swivel link, changing food waste is carried out to innoxious processing on the spot, and changing food waste is converted to fertilizer masterbatch, thereby realize, from source, changing food waste is controlled, the transportation cost of rubbish and the expense that landfill burns have not only been reduced, and the peculiar smell that has reduced rubbish fermentation process produces.
Wherein, after steps A, also comprise: isolated liquid is carried out to oily water separation.By the liquid of separating is carried out to oily water separation processing, improved the efficiency that changing food waste is processed.
Wherein, described in step B, biochemical treatment comprises: in described solid refuse, drop into mushroom microorganism; Interim detection solid refuse weight, the air capacity that interim adjustment passes into the processing storehouse of solid refuse accordingly.
By stage, detect the weight of solid refuse, in isolated solid refuse, pass into air, by microbial growth, breed to consume solid refuse, formed a kind of fertilizer masterbatch.And along with the minimizing of solid refuse amount, adjust in real time the air capacity passing into solid refuse, thereby get final product so that solid refuse is more suitable for microbial growth breeding, thereby form sooner fertilizer masterbatch, and make treating processes more save the energy.
Wherein, also comprise: the solid refuse weight detecting according to stage, the temperature in the processing storehouse of the interim described solid refuse of adjustment.
By stage, detect the weight of solid refuse, control the temperature of heat solid rubbish, improved the efficiency of refuse treatment.Make isolated solid refuse form quickly the fertile masterbatch of machine.
Wherein, also comprise: the solid refuse weight detecting according to stage, the heat-up time that described solid refuse is heated in interim adjustment.
By stage, detect the weight of solid refuse, control the time of heat solid rubbish, improved the efficiency of refuse treatment.Make isolated solid refuse form quickly the fertile masterbatch of machine.
Wherein, also comprise: the solid refuse weight detecting according to stage, the stirring stall ratio of interim adjustment to described solid refuse.
By stage, detect the weight of solid refuse, control the stirring stall ratio to described solid refuse, improved the efficiency of refuse treatment.Make isolated solid refuse form quickly the fertile masterbatch of machine.
Wherein, described mushroom microorganism comprises cellulose-degrading bacteria, starch degradation bacterium, microbial composite bacteria, protein degradation bacterium, grease degrading strain, subtilis and/or Pseudomonas aeruginosa, and the proportioning ratio of its weight is 15:15:20:20:11:9.
By add the composite bacteria that the proportioning ratio of weight is 15:15:20:20:11:9 in solid refuse, utilize the growth of composite bacteria, breeding to carry out disaggregating treatment solid refuse, make more environmental protection of garbage processing procedure.
Wherein, the stage of 0-8 hour, the air capacity passing into processing storehouse was 400m
3/ h, processing temperature in storehouse is 60 ℃, described stirring stall is than being 1:1; The stage of 8-16 hour, the air capacity passing into processing storehouse was 900m
3/ h, processing temperature in storehouse is 60 ℃, described stirring stall is than being 2:1; The stage of 16-24 hour: the air capacity passing into processing storehouse is 300m
3/ h, processing temperature in storehouse is 60 ℃, described stirring stall is than being 4:1.
By periodically adjusting air capacity, Heating temperature and stirring stall ratio, thereby make composite bacteria more easily grow, breed, be more conducive to disaggregating treatment solid refuse, make more environmental protection of garbage processing procedure.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of a kind of changing food waste treatment process provided by the invention.
Embodiment
Below in conjunction with accompanying drawing, the embodiment of the present invention is described in detail.Referring to Fig. 1, the changing food waste treatment process that the embodiment of the present invention provides, comprises the following steps:
A. directly changing food waste is carried out to solid-liquid separation on the spot;
The composition of changing food waste contains solid part and liquid portion conventionally, by directly changing food waste being put into equipment for separating liquid from solid, carry out solid-liquid separation, do not need rubbish to classify in advance and break process, after solid-liquid separation, the liquid component of changing food waste and solid part are recycled respectively.For example, can carry out solid-liquid separation by the sleeve of rotation, the inner tube wall in sleeve is provided with mesh, and urceolus bottom arranges water port.By rotating centrifugal effect, the liquid component of changing food waste enters urceolus by the mesh of inner core barrel, by the water port of urceolus, discharges.The solid part of changing food waste is discharged through solid discharge port.In addition, also can carry out purifying treatment to isolated liquid, for example, add deodovization agent or add additive to change its smell.Also can in isolated liquid, add microorganism, for example, Bacillus subtilus.
B. isolated liquid is carried out to oily water separation;
Changing food waste is by after solid-liquid separation, and its liquid portion is mainly to be become to be grouped into two kinds, water by oil, by oily-water seperating equipment, the oil in liquid and water is reclaimed respectively, and the oil after separation can reclaim through Notified body, the unified processing of carrying out.And isolated sewage can be further processed, for example, in sewage, throw in mushroom microorganism or process through specific equipment.
C. separated solid refuse is formed to fertilizer masterbatch by biochemical treatment;
In isolated solid refuse, drop into microorganism, by microbial growth, breed to consume solid refuse, after this biochemical treatment, formed a kind of fertilizer masterbatch.Can pass through the default time, fertilizer masterbatch is reclaimed.
In this treating processes, can first determine the weight of processing storehouse domestic demand solid refuse to be processed, and according to the weight of determined solid refuse, true directional process storehouse, to the air capacity and the heat-up time that pass in solid refuse, after the microorganism growth that the air capacity in processing storehouse and temperature are applicable to throwing in, breeding, the microorganism that will throw in is dropped into and processes in storehouse, along with processing microbial growth, breeding in storehouse, the solid refuse of processing in storehouse progressively forms fertilizer masterbatch.
Biological metabolism, dead and breeding will consume the organism in rubbish, the compositions such as the moisture producing and carbonic acid gas are discharged with ventilation opening, moisture is discharged and is processed storehouse by evaporation, thereby caused the minimizing of solid refuse material gross weight, in this treating processes, rubbish residuum in processing storehouse and the fertilizer master batch weight of production are along with the time constantly changes, by the residuals weight that drops into rubbish in Check processing storehouse at any time, the air capacity of adjusting at any time heat-up time and/or passing into, for example, within just having dropped into first 8 hours after rubbish, the heating of machine, ventilate, stir intermittent work, second within 8 hours or when solid refuse weight of material reduction reaches 50%, heating, ventilate, stirring is according to processing solid refuse material gross weight selectivity work in storehouse, last 8 hours or process in storehouse when solid refuse material gross weight reduction reaches 80%, processing storehouse is heated and made temperature maintain 40 degrees Celsius of left and right, the solid refuse material of processing in storehouse is carried out to intermittence stirring, the stall ratio of stirring is controlled to 11:1 left and right.
Can be according to the residuals weight that drops into rubbish in the processing storehouse of real-time detection, needed air capacity in computing biochemical bin, according to determined air capacity, controls to processing the time that in storehouse, solid refuse ventilates.
Can, according to the weight of residual refuse in the processing storehouse of real-time detection, determine that heating unit is to processing heat-up time or the Heating temperature of solid refuse in storehouse.For example, while just dropping into solid refuse material, solid refuse temperature of charge will be warmed up to 40---80 degree Celsius, keep temperature after 8 hours or when solid refuse weight of material reduction reaches 50%, to proceed to subordinate phase, temperature-resistant, last 8 hours or process in storehouse when solid refuse material gross weight reduction reaches 80% and enter the 3rd energy-conservation stage of dormancy, that is, temperature is controlled at 30---70 degree Celsius.
In this treating processes, also can pass through whipping appts, the rubbish residuum in processing storehouse and the fertilizer masterbatch of production are stirred, so that its environment is more suitable for input microorganism growth, breeding.
Also can be in treating processes, rubbish residuals weight in temperature in Check processing storehouse, humidity and processing storehouse is controlled the heat-up time of rubbish residuum, Heating temperature and ventilation time in real time, makes the environment of solid refuse be more suitable for microbial growth, breeding.
The inventor adopts and comprises cellulose-degrading bacteria, starch degradation bacterium, microbial composite bacteria, protein degradation bacterium, grease degrading strain, the microbial composite bacteria of subtilis and Pseudomonas aeruginosa, through repeatedly test (test number (TN) under every kind of condition is more than 100 times) repeatedly, through after a period of time, the situation of processing the reduction of solid refuse in storehouse (can be described as " reduction rate ", in " reduction rate " test, the solid refuse of processing in storehouse due to expectation changes the fertilizer masterbatch that weight is lighter into after carrying out a biological disposal upon, therefore reduction rate is larger more expects), found that:
When microbial composite bacteria proportioning ratio is by weight 15:15:20:20:11:9, in processing storehouse, temperature of charge is 60 ℃, in 0-8 hour of system operation, to processing storehouse, passes into 400m
3/ h(cube m/h), and control the intermittence stirring of processing in storehouse, stir stall ratio for 1:1(is by second calculating), in 8-16 hour, to processing storehouse, pass into 900m
3/ h air quantity, stirring stall ratio is 2:1, and in 16-24 hour: to processing storehouse, pass into 300m
3/ h air quantity, stir stall and compare 4:1, after 8 hours, the reduction rate of processing solid refuse weight in storehouse is 50%, after 16 hours, the reduction rate of processing solid refuse weight in storehouse is 61%, and after 24 hours, the reduction rate of processing solid refuse weight in storehouse reaches 91%, and material, for dry loose form (this is also the optimum regime of the fertilizer of expectation), as can be seen here, is drawn by repetition test data, when the compositely proportional of the composite bacteria of processing for changing food waste is 15:15:20:20:11:9, component (by weight) meter:
Now, process temperature in storehouse and maintain 60 ℃, within first 8 hours, turn and stop than being 1:1, air quantity 400m
3/ h; Middle turning for 8 hours stops than 2:1, air quantity 900m
3/ h; Within last 8 hours, turn and stop than 4:1, air quantity 300m
3/ h, now, treatment effect is best, can reach more than 90%.Concrete various experimental data is referring to the table 1 being positioned at after specification sheets.
D. described fertilizer masterbatch is become thoroughly decomposed to process and form organic fertilizer;
Can adopt the common technique of becoming thoroughly decomposed to form organic fertilizer.
To form fertilizer masterbatch by biochemical treatment, reclaim, for example, in solid refuse, throw in microorganism after 24 hours, can reclaim the fertilizer masterbatch forming.
In the fertilizer masterbatch reclaiming, add: moisture, rice husk, agricultural crop straw, feces of livestock and poultry etc. form compost.Regulate the moisture content of fertilizer masterbatch to make it can keep good aeration status, contain again enough moisture for the various microbial activities needs in compost.Microorganism, under aerobic condition, produces heat by decomposing organic matter matter and promotes compost maturity and moisture to evaporate, and finally forms organic fertilizer.
E. described organic fertilizer is sieved.
Due to provided by the invention in changing food waste treatment process, do not need the changing food waste pulverizing of classifying, but changing food waste is carried out to solid-liquid separation on the spot, isolated solid refuse is directly carried out to biochemical treatment and form fertilizer masterbatch, and described fertilizer masterbatch is become thoroughly decomposed and processes formation organic fertilizer.And in changing food waste, easily sneak into the solid refuse of the comparatively large vols such as bottle, due to changing food waste is not sorted, pulverization process, these sneak into the solid refuse of the comparatively large vol in changing food waste, after to changing food waste, processing forms the organic fertilizer becoming thoroughly decomposed, by sifted, divide away.The comparatively large vol that these sift out or the solid refuse of more difficult decomposition can be used as expendable rubbish and process.
It should be noted that, because being just sieves after process forming organic fertilizer, now do not contained that garbage raw material distributes poisonous or have the gas of intense stimulus peculiar smell, protects and all benefits to environment protection or to staff.
Above each step of the method, or the step before step e can be to carry out in airtight environment, more environmental protection.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, any modification based on doing within the spirit and principles in the present invention, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Be table 1 below: wherein, the unit of temperature is ℃, the h of following table 1 represents hour, and 8h represents 0-8 hour stage, and 16h represents 8-16 hour stage, and 24h represents 16-24 hour stage.Wherein, bottom plate heating temperature refers to be arranged at processes the temperature that the heating unit of base plate below, storehouse heats, and processes temperature in storehouse and be the temperature in the processing storehouse of measurement.
Claims (8)
1. the method that changing food waste is processed, is characterized in that: comprise the steps:
A. changing food waste is carried out to solid-liquid separation;
B. isolated solid refuse is formed to fertilizer masterbatch in processing storehouse by biochemical treatment;
C. described fertilizer masterbatch is become thoroughly decomposed to process and form organic fertilizer;
D. described organic fertilizer is sieved.
2. method according to claim 1, is characterized in that, also comprises: isolated liquid is carried out to oily water separation after steps A.
3. method according to claim 1, is characterized in that, biochemical treatment comprises described in step B:
In described solid refuse, drop into mushroom microorganism;
Interim detection solid refuse weight, the air capacity that interim adjustment passes into the processing storehouse of solid refuse accordingly.
4. method according to claim 3, is characterized in that, also comprises:
The solid refuse weight detecting according to stage, the temperature in the processing storehouse of the interim described solid refuse of adjustment.
5. method according to claim 4, is characterized in that, also comprises:
The solid refuse weight detecting according to stage, the heat-up time that described solid refuse is heated in interim adjustment.
6. according to the method described in claim 4 or 5, it is characterized in that, also comprise:
The solid refuse weight detecting according to stage, the stirring stall ratio of interim adjustment to described solid refuse.
7. method according to claim 6, it is characterized in that, described mushroom microorganism comprises cellulose-degrading bacteria, starch degradation bacterium, microbial composite bacteria, protein degradation bacterium, grease degrading strain, subtilis and/or Pseudomonas aeruginosa, the proportioning ratio of its weight is 15:15:20:20:11:9.
8. method according to claim 7, is characterized in that,
The stage of 0-8 hour, the air capacity passing into processing storehouse was 400m
3/ h, processing temperature in storehouse is 60 ℃, described stirring stall is than being 1:1;
The stage of 8-16 hour, the air capacity passing into processing storehouse was 900m
3/ h, processing temperature in storehouse is 60 ℃, described stirring stall is than being 2:1;
The stage of 16-24 hour: the air capacity passing into processing storehouse is 300m
3/ h, processing temperature in storehouse is 60 ℃, described stirring stall is than being 4:1.
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| CN201310030482.0A CN103964902A (en) | 2013-01-25 | 2013-01-25 | Food waste treatment method |
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| CN201310030482.0A CN103964902A (en) | 2013-01-25 | 2013-01-25 | Food waste treatment method |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104892039A (en) * | 2015-05-11 | 2015-09-09 | 徐州达蒙生物科技有限公司 | Method used for converting kitchen solid residue into biologic bacterium preparations |
| CN106391676A (en) * | 2016-12-15 | 2017-02-15 | 江苏禾杰生物环境科技有限公司 | Kitchen waste drying and stabilization rapid processing method and related processing equipment |
| CN106513414A (en) * | 2016-10-31 | 2017-03-22 | 南开大学 | Process technology for fully recycling municipal domestic waste and producing engineering raw materials from municipal domestic waste and application |
| CN107266132A (en) * | 2017-07-07 | 2017-10-20 | 河北诚润环保工程有限公司 | A kind of reclaiming organic waste circulation utilization method |
| CN108393337A (en) * | 2018-05-03 | 2018-08-14 | 北京京海创能科技有限公司 | A kind of on-site processing equipment and method of perishable rubbish |
| CN111170773A (en) * | 2020-01-08 | 2020-05-19 | 浙江华庆元生物科技有限公司 | Perishable garbage microbial degradation technology |
| CN111662853A (en) * | 2020-07-17 | 2020-09-15 | 中国科学院成都生物研究所 | Kitchen waste biological drying stabilizing microbial agent and preparation method and application thereof |
| CN111961610A (en) * | 2020-07-21 | 2020-11-20 | 昆山理清生物科技有限公司 | Enzyme for treating kitchen waste and method for treating kitchen waste |
| CN112058854A (en) * | 2020-08-04 | 2020-12-11 | 北京环境工程技术有限公司 | Kitchen waste dehydration composting process and system |
| CN113979792A (en) * | 2020-07-27 | 2022-01-28 | 上海谆龙智能科技有限公司 | Biological treatment method for kitchen garbage |
| CN114951238A (en) * | 2022-05-13 | 2022-08-30 | 美都生态环境科技(天津)有限公司 | Kitchen waste treatment process with high reduction rate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104892039A (en) * | 2015-05-11 | 2015-09-09 | 徐州达蒙生物科技有限公司 | Method used for converting kitchen solid residue into biologic bacterium preparations |
| CN106513414A (en) * | 2016-10-31 | 2017-03-22 | 南开大学 | Process technology for fully recycling municipal domestic waste and producing engineering raw materials from municipal domestic waste and application |
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| CN106391676A (en) * | 2016-12-15 | 2017-02-15 | 江苏禾杰生物环境科技有限公司 | Kitchen waste drying and stabilization rapid processing method and related processing equipment |
| CN107266132A (en) * | 2017-07-07 | 2017-10-20 | 河北诚润环保工程有限公司 | A kind of reclaiming organic waste circulation utilization method |
| CN108393337A (en) * | 2018-05-03 | 2018-08-14 | 北京京海创能科技有限公司 | A kind of on-site processing equipment and method of perishable rubbish |
| CN111170773A (en) * | 2020-01-08 | 2020-05-19 | 浙江华庆元生物科技有限公司 | Perishable garbage microbial degradation technology |
| CN111662853A (en) * | 2020-07-17 | 2020-09-15 | 中国科学院成都生物研究所 | Kitchen waste biological drying stabilizing microbial agent and preparation method and application thereof |
| CN111961610A (en) * | 2020-07-21 | 2020-11-20 | 昆山理清生物科技有限公司 | Enzyme for treating kitchen waste and method for treating kitchen waste |
| CN113979792A (en) * | 2020-07-27 | 2022-01-28 | 上海谆龙智能科技有限公司 | Biological treatment method for kitchen garbage |
| CN112058854A (en) * | 2020-08-04 | 2020-12-11 | 北京环境工程技术有限公司 | Kitchen waste dehydration composting process and system |
| CN114951238A (en) * | 2022-05-13 | 2022-08-30 | 美都生态环境科技(天津)有限公司 | Kitchen waste treatment process with high reduction rate |
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Application publication date: 20140806 |