CN102943094B - Food waste treating method - Google Patents
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- CN102943094B CN102943094B CN201210459526.7A CN201210459526A CN102943094B CN 102943094 B CN102943094 B CN 102943094B CN 201210459526 A CN201210459526 A CN 201210459526A CN 102943094 B CN102943094 B CN 102943094B
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Abstract
The invention relates to the technical field of waste recycling, in particular to a food waste treating method. The method comprises the following steps of: I, fermenting on site; II, transferring; III, fermenting in a centralized way; and IV, performing subsequent treatment. A treating process is started just after the production of food waste, and an enclosed fermentation state is always kept in the collecting, transferring and centralized treatment process of food waste, so that the breeding of putrefactive bacteria is restrained, secondary pollution is prevented, collected food waste is completed treated on the basis of reclamation, the problems of collection, transportation and treatment of food waste in a certain region in cities are favorably solved in a regional and systematic mode, dry and wet classified recycling of life waste is facilitated, and convenience is brought to management and monitoring.
Description
Technical field
The present invention relates to refuse reclamation processing technology field, relate in particular to a kind of changing food waste treatment process.
Background technology
Changing food waste mainly refers to catering trade, dining room and the family cooking organic waste producing in process of having dinner, and generally comprises leftovers, meal kitchen raw material tankage, melon skin fruit bits etc.Group wants composition to comprise the organic compositions such as starch, protein, grease, foodstuff fibre, has water ratio high, and grease, salinity are high, the perishable feature such as smelly.
Along with raising and the improvement of living standards of the people, the generating capacity of changing food waste has increasing trend.
Collection, transhipment and the processing of the changing food waste that at present most of family in China city produces is to adopt with domestic waste mixed collection, mix transhipment, the method for combination treatment.On the one hand, the multiple nutrients material being rich in rubbish is not utilized, on the other hand, changing food waste is because water content is high, calorific value is low, brings disadvantageous effect to garbage loading embeading or burning, causes evaporating, emitting, dripping or leaking of liquid or gas in consumer waste transferring process because water content is high simultaneously, cause serious secondary pollution, become a difficult problem for Domestic Waste Collection and processing.
Developed many technology of changing food waste being carried out to comprehensive treating process, as patent CN 101955382 A disclose a kind of changing food waste reason method and treatment system thereof, patent CN 10192809 A disclose a kind for the treatment of process of changing food waste.The disclosed changing food waste of above-mentioned patent recycling processing method processed, its treatment scheme is all transported into changing food waste centralized treatment plant from changing food waste and begins, and first changing food waste is sorted to removal of impurities, pulverizes, and just starts afterwards to separate, the treatment process such as fermentation.But because the raw material obtaining is generally to produce the changing food waste of latter about 12 ~ 24 hours, rot, very easily contaminated equipment and environment, causes processing plant to become new source of pollution.
Owing to having evaporating, emitting, dripping or leaking of liquid or gas in the collection of changing food waste, transport, processing journey, cause secondary pollution, make changing food waste treatment industry become citizen's detest type industry, increase the difficulty of changing food waste and garbage treatment.
Summary of the invention
The technical problem that the present invention solves is to overcome the deficiencies in the prior art, provides a kind of and start changing food waste treatment process continuing fermentation processing, that can avoid causing secondary pollution after changing food waste produces.After changing food waste produces, collect at generation scene immediately exactly and start liquid lactic acid fermentative processing, then the changing food waste in fermentation is transported to and focuses on factory and carry out Concentrated fermentation processing under the state of airtight constant temperature continuing fermentation, in realizing resource utilization, eliminate the secondary pollution in changing food waste collection and transport process.For solving the problems of the technologies described above, the technical solution used in the present invention is as follows:
A kind of changing food waste treatment process, comprises the following steps:
Further, the on-the-spot fermentation unit of changing food waste in described step 1 is automated fluid fermentor tank, and described automated fluid fermentor tank comprises:
For splendid attire raw-material fermentor tank to be fermented,
For the temperature controlling system of temperature in controlled fermentation tank,
For adjusting the pH value adjustment System of fermentor tank pH value,
For the airing system of air feed in fermentor tank,
With the stirring mechanism for stirred fermentor content.
Further, the actual generation of changing food waste that the volume of the on-the-spot fermentation unit of changing food waste in described step 1 produces some same day by the residing changing food waste of this device determines, its quantity equals the quantity of changing food waste generation in the region of be responsible for Collecting and dealing.
Further, described step 1 to the fermentation in step 3 is lactic fermentation mode, adopts anaerobically fermenting or aerobic fermentation, and fermentation condition is set according to the difference adjustment of adopted bacterial classification, and temperature range is 25～60 DEG C, and pH value scope is 6.5 ~ 7.5.
The milk-acid bacteria that fermentation mode of the present invention both can utilize rubbish from cooking self to produce is fermented, and also can ferment by the mode of extra interpolation bacterial classification, is specially:
The first, described step 1 to the fermentation in step 3 is to adopt extra mode of adding bacterial classification to realize, and adopts lactic fermentation mode, is specially: while fermentation first, to 1/30～1/15 the lactic-acid-bacterium fermentation seed liquid that drops into its volume in fermentation unit, changing food waste is unsterilised; When after the normal operation of fermentation unit, do not need each extra fermentation seed liquid that adds, but at each remaining ferment liquid that remains 1/30～1/15 volume after fermented liquid of drawing as seed liquor, leavening temperature is 25～60 DEG C.
Preferably, described lactic-acid-bacterium is middle temperature lactic-acid-bacterium or thermophilic lactic bacteria, and in wherein using, leavening temperature is 30 ~ 50 DEG C when the fermentation of warm lactic-acid-bacterium, and while using the fermentation of thermophilic lactic bacteria, leavening temperature is 50 ~ 60 DEG C.And the preferred bacterial classification of thermophilic lactic bacteria is product Pfansteihl Bacillus coagulans, the leavening temperature that produces Pfansteihl Bacillus coagulans is 50 ~ 55 DEG C.Producing Pfansteihl Bacillus coagulans is fermented bacterium optimum in technical solution of the present invention, and its leavening temperature is higher, and high temperature can suppress the growth of other miscellaneous bacteria.In addition, its product L lactic acid optical purity is high, and economic worth is high.The second, described step 1 is not added bacterial classification to the fermentation in step 3, and changing food waste is unsterilised, relies on the milk-acid bacteria nature anaerobically fermenting naturally existing in changing food waste, 30 ~ 50 DEG C of leavening temperatures, the remaining ferment liquid that remains 1/30～1/15 volume after each absorption fermented liquid is as seed liquor.
Further, described step 2 Chinese meal kitchen garbage fermentation liquid constant temperature transport trolley comprises chassis and upper dress two portions, and described upper dress part, comprises
For the fermentation liquid bath tank of splendid attire fermented liquid and
Be located on fermentation liquid bath tank for gutter tank inner air pressure and airfiltering respiratory organ,
For maintain homo(io)thermism in groove tank heating system,
For to carry in groove tank sterile air airing system,
Charging pumping system and discharge system;
The liquid bath tank internal surface that wherein ferments is corrosion resistant material, and outside surface is lagging material, inside establishes wave cutter, and the operating temperature range of fermentation liquid bath tank is 25～60 DEG C; Heating system comprises liquid-heater and radiator coil tube; Airing system is made up of gas distribution pipe in strainer, air pump and tank; Charging pumping system comprises the pipeline, pump and the vacuum breaker that are connected successively with fermentation liquid bath tank; Discharge system comprises discharge valve and is connected the pipeline of discharge valve with fermentation liquid bath tank.
The described main major function of changing food waste fermented liquid transport trolley is transport and preservation changing food waste fermented liquid under air-tight state, in the process of transport, keep leavening temperature and aerobic-anaerobic state constant simultaneously, in keeping bacterial classification continued growth, suppress varied bacteria growing, make fermented liquid arrival changing food waste focus on factory and be convenient to continue fermentation later or carry out other processing.The timed interval of drawing and transporting fermented liquid is 12 ~ 24 hours, controls temperature in changing food waste fermented liquid ferment at constant temperature transport recessing tank identical with the fermentation jar temperature of on-the-spot fermentation unit when transhipment.
Further, in described step 3, in order to accelerate fermenting speed, improve raw material availability or reach certain and be scheduled to the needs of fermentation target, can be as required to adding ferment required nutritive substance and promote the enzyme of fermentation of microorganism in Concentrated fermentation tank, the addition of enzyme is lived according to the ratio enzyme of used enzyme and fermentating liquid volume is determined.Changing food waste fermented liquid is determined according to the requirement of different tunnings in the time of Concentrated fermentation tank relaying supervention ferment, is generally 12 ~ 24 hours.
In described step 4, subsequent processes is selected suitable product separation extracting method and the treatment process of fermented liquid according to the characteristic of the product of carried out fermentation and fermented liquid, specifically has two kinds:
The first, is for lactic acid producing fermentation mode, first fermented liquid is carried out to solid-liquid separation, and clear liquor is for lactic acid extraction; Extract waste water qualified discharge or utilization after purifying treatment after lactic acid; And isolated fermentation residue through sterilizing, dry after as feed;
The second, is for producing gemma fermentation mode, first fermented liquid is carried out to centrifugation and obtains gemma, gemma is mixed to oven dry with dry starch, adds batching, makes probiotics after mixing; Clear liquor qualified discharge or utilization after purification of waste water is processed.
Compared with prior art, the beneficial effect of technical solution of the present invention is: changing food waste treatment process of the present invention, in the time that just producing, changing food waste starts the treating processes of changing food waste, reduce existing changing food waste and focused on the operations such as sorting in technique, screening, pulverizing, reduced meal kitchen and focus on the floor space of factory.In the whole process that treatment process of the present invention is transported, focused in collection, the transfer of changing food waste, remain sealed fermenting state, suppress growing of putrefactive bacterium, prevent secondary pollution, finally make the changing food waste of collecting be dissolved completely on the basis of resource utilization.The collection, transport and the processing problem that are conducive to the changing food waste that solves in flakes a certain region, city, be conducive to promote the categorised collection processing of dry wet refuse, is also convenient to measuring control and monitoring.
Brief description of the drawings
Fig. 1 is the FB(flow block) of changing food waste treatment process of the present invention;
Fig. 2 is the schema of changing food waste treatment process embodiment 1 of the present invention;
Fig. 3 is the schema of changing food waste treatment process embodiment 2 of the present invention;
Fig. 4 is the schema of changing food waste treatment process embodiment 3 of the present invention;
Fig. 5 is the schematic diagram of the changing food waste fermented liquid transport trolley that adopts in changing food waste treatment process of the present invention.
Embodiment
Below in conjunction with drawings and Examples, technical scheme of the present invention is described further.
As shown in Figure 1, be changing food waste process flow figure of the present invention, specifically comprise the following steps:
As shown in Figure 2, the concrete processing mode of its each step is concrete treatment scheme in the present embodiment:
The on-the-spot fermentation unit of changing food waste in step 1 is automated fluid fermentor tank, produces point at least place one at each changing food waste.Described automated fluid fermentor tank comprises: for splendid attire raw-material fermentor tank to be fermented, for the temperature controlling system of temperature in controlled fermentation tank, for adjusting the pH value adjustment System of fermentor tank pH value, for the airing system to air feed in fermentor tank, and for the stirring mechanism of stirred fermentor content.The volume of fermentor tank is 150 ~ 500 liters, 300 liters of average volume, and quantity is 200.
In step 1, in the time fermenting first, in fermentor tank, drop into the product Pfansteihl Bacillus coagulans fermentation seed liquid that accounts for fermentor tank volume 1/15, when after the normal operation of system, do not need each extra fermentation seed liquid that adds, but the remaining ferment liquid that remains 1/15 volume after each absorption fermented liquid is as seed liquor.Leavening temperature is 55 DEG C, and anaerobically fermenting is controlled pH value between 6.5 ~ 7.5, uses sodium hydroxide or calcium carbonate to regulate fermented liquid pH value.
The structure of step 2 Chinese meal kitchen garbage fermentation liquid constant temperature transport trolley as shown in Figure 5, comprises chassis 1 and upper dress two portions.Described upper dress part, comprise for the fermentation liquid bath tank 4 of splendid attire fermented liquid and be located on fermentation liquid bath tank 4 for gutter tank inner air pressure and airfiltering respiratory organ 3, for maintaining the heating system 7 of homo(io)thermism in groove tank, for carry sterile air airing system 2, charging pumping system 5 and discharge system 6 in groove tank.Described chassis can be diesel oil fuel car, Fuel Petroleum car, gas fuel car, liquefied gas as fuel car or electric vehicle, and described upper dress partial fixing is on the vehicle frame on chassis.
The flexible suction tube in the time that changing food waste produces on-the-spot pump and gets changing food waste fermented liquid, changing food waste fermented liquid transport trolley being carried is connected with the fermentor tank liquid outlet of on-the-spot rubbish fermentation treatment unit, the pump that starts charging pumping system pumps into the changing food waste fermented liquid in on-the-spot fermentation unit in the fermentation liquid bath tank 4 of kitchen garbage transport vehicle, closes afterwards the fermentor tank liquid-outlet valve of on-the-spot fermentation processing unit.Draw fermented liquid cycle of transporting and be every 24 hours once, temperature when transhipment in the groove tank of changing food waste fermented liquid constant temperature transport trolley is identical with the temperature of fermentor tank in on-the-spot fermentation unit, is in the present embodiment 55 DEG C, anaerobically fermenting.After finishing, daily work needs rinse bath tank.
In step 2, changing food waste fermented liquid constant temperature transporting vehicle-mounted freight volume is 3 tons, and every round trip can be transported 10 place's changing food wastes generations and select produced fermented liquid.
In step 3, by the discharge system of changing food waste fermented liquid constant temperature transport trolley, the fermented liquid of delivery is transferred in Concentrated fermentation tank.Concentrated fermentation tank quantity is 2, and tank body volume is 60 cubic metres.The changing food wastes that the amount of the handled changing food waste of each Concentrated fermentation tank can meet 200 liters of changing food waste fermented liquids of 200 average daily outputs of day processing produce whole changing food wastes that point produces.
Fermentation condition in step 3 is with step 1 and step 2,55 DEG C of leavening temperatures, and anaerobically fermenting, controls pH value between 6.5 ~ 7.5, uses sodium hydroxide or calcium carbonate adjusting fermentating liquid PH value.
In step 3, for accelerating fermenting speed, improve raw material availability, can in Concentrated fermentation tank, add amylase, the amount of interpolation is lived according to the ratio enzyme of purchased enzyme and fermentating liquid volume is determined.In the present embodiment, add the saccharifying enzyme of every gram of 50,000 units, enzyme dosage is by 100 ~ 300 units/gram raw materials, and the addition of enzyme is 12.8 kilograms.
In step 3, changing food waste fermented liquid ferments after 24 hours in Concentrated fermentation tank, puts tank and enters the fermented liquid subsequent disposal operation in step 4.
Owing to being the rubbish from cooking of lactic acid producing fermentation mode processing adopting, so the subsequent disposal operation in step 4 is specially, first fermented liquid is carried out to solid-liquid separation, clear liquor, for lactic acid extraction, extracts waste water qualified discharge or utilization after purifying treatment after lactic acid.Isolated fermentation residue through sterilizing, dry after as feed.
As shown in Figure 3, its base conditioning flow process is with four steps described in embodiment 1 for changing food waste treatment scheme in the present embodiment, but the treatment condition of each step are slightly different, are specially:
In step 1, do not add bacterial classification, changing food waste is unsterilised, relies on the lactic-acid-bacterium nature anaerobically fermenting naturally existing in changing food waste, 37 ~ 38 DEG C of leavening temperatures.In fermenting process, the pH value to fermented liquid is not adjusted.
In step 1, the volume of the fermentor tank in on-the-spot fermentation processing unit is 150 ~ 500 liters, 300 liters of average volume, and quantity is 300.
In step 2, changing food waste constant temperature transporting vehicle-mounted freight volume is 4 tons, and the every round trip of every chassis can be transported 13 place's changing food wastes generations and select produced fermented liquid.
The remaining ferment liquid that remains 1/20 volume after each absorption fermented liquid is as fermentation seed liquid.
In step 2, changing food waste fermented liquid constant temperature transport trolley keeps in groove tank 37 ~ 38 DEG C of temperature, anaerobic state in transportation.Draw fermented liquid cycle of transporting and be every 24 hours once, temperature when transhipment in the groove tank of changing food waste constant temperature transport trolley is identical with leavening temperature.
In step 3, the quantity of Concentrated fermentation tank is 2, and Concentrated fermentation tank volume is 90 cubic metres, and the changing food wastes that each Concentrated fermentation tank can meet 200 liters of changing food waste fermented liquids of 300 average daily outputs of day processing produce whole changing food wastes that point produces.
In step 3, the fermentation condition in step 3 is with step 1 and step 2,37 ~ 38 DEG C of leavening temperatures, and anaerobically fermenting, controls pH value between 6.5 ~ 7.5, uses sodium hydroxide or calcium carbonate adjusting fermentating liquid PH value.
In step 3, for accelerating fermenting speed, improve raw material availability, can in Concentrated fermentation tank, add amylase, the amount of interpolation is lived according to the ratio enzyme of purchased enzyme and fermentating liquid volume is determined.In the present embodiment, add the saccharifying enzyme of every gram of 50,000 units, enzyme dosage is by 100 ~ 300 units/gram raw materials, and the addition of enzyme is 19.2 kilograms.
In step 3, changing food waste fermented liquid ferments after 24 hours in Concentrated fermentation tank, puts tank and enters the fermented liquid subsequent disposal operation in step 4.
The present embodiment is due to the same with embodiment 1, and the lactic acid producing fermentation mode all adopting, so the fermented liquid subsequent disposal mode in step 4 is with embodiment 1.
As shown in Figure 4, its base conditioning flow process is with four steps described in embodiment 1 for changing food waste treatment scheme in the present embodiment, but the treatment condition of each step are slightly different, are specially:
In step 1, in step 1, in the time fermenting first, in fermentor tank, drop into the product Pfansteihl Bacillus coagulans fermentation seed liquid that accounts for fermentor tank volume 1/30, when after the normal operation of system, do not need each extra fermentation seed liquid that adds, but the remaining ferment liquid that remains 1/30 volume after each absorption fermented liquid is as seed liquor.Aerobic fermentation, 55 DEG C of leavening temperatures.Changing food waste is unsterilised, and in fermenting process, the pH value to fermented liquid is not adjusted.
In step 1, the volume of the fermentor tank in on-the-spot fermentation processing unit is 150 ~ 500 liters, 300 liters of average volume, and quantity is 400.
In step 2, changing food waste fermented liquid constant temperature transport trolley keeps in groove tank 55 DEG C of temperature, good oxygen condition in transportation.
In step 2, draw fermented liquid timed interval of transporting and be every 12 hours once, the temperature while shifting transport in the groove tank of changing food waste constant temperature transport trolley is identical with the leavening temperature of on-the-spot fermentation unit.
In step 2, changing food waste fermented liquid constant temperature transporting vehicle-mounted freight volume is 6 tons, and every round trip can be transported 20 place's changing food wastes generations and select produced fermented liquid.
In step 3, Concentrated fermentation tank volume is 120 cubic metres, and the changing food wastes that can meet 200 liters of changing food waste fermented liquids of 400 average daily outputs of day processing produce whole changing food wastes that point produces.The quantity of Concentrated fermentation tank is 2.
In step 3, the fermentation condition in step 3 is with step 1 and step 2,55 DEG C of leavening temperatures, and aerobic fermentation, controls pH value between 6.5 ~ 7.5, uses sodium hydroxide or calcium carbonate adjusting fermented liquid pH value.
In step 3, for accelerating cultivation speed, improve raw material availability, can in Concentrated fermentation tank, add amylase, the amount of interpolation is lived according to the ratio enzyme of purchased enzyme and fermentating liquid volume is determined.In the present embodiment, add the saccharifying enzyme of every gram of 50,000 units, enzyme dosage is by 100 ~ 300 units/gram raw materials, and the addition of enzyme is 25.6 kilograms.
In step 3, changing food waste fermented liquid ferments after 24 hours in Concentrated fermentation tank, puts tank and enters the fermented liquid subsequent disposal operation in step 4.
For the fermented liquid that produces gemma fermentation generation, the subsequent treatment process in step 4 is different from step 1, is specially, and first fermented liquid is carried out to centrifugation and obtains gemma, gemma is mixed to oven dry with dry starch, adds batching, makes probiotics after mixing.Clear liquor qualified discharge or utilization after purification of waste water is processed.
The above is preferred embodiment of the present invention, is not limited to the present invention, within the spirit and principles in the present invention all, any amendment of making, is equal to and replaces and improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. a changing food waste treatment process, is characterized in that, comprises the following steps:
Step 1, on-the-spot fermentation: produce the on-the-spot changing food waste just having produced is put at changing food waste and be arranged in on-the-spot automated fluid fermentor tank, in automated fluid fermentor tank, add bacterial classification or rely on bacterial classification in rubbish to add bacterial classification outside not, fermented bacterium produces Pfansteihl Bacillus coagulans, according to the difference of bacterial classification, under the fermentation condition of setting, carry out lactic fermentation;
Step 2, transhipment: changing food waste is 12 ~ 24 hours in the time of automated fluid fermentation cylinder for fermentation processing, after setting-up time, fermented liquid is transferred on fermented liquid constant temperature transport trolley, keep the fermentation condition in step 1 constant, in the fermenting container of fermented liquid constant temperature transport trolley, continue lactic fermentation; Transport fermented liquid to centralized treatment plant by fermented liquid constant temperature transport trolley;
Step 3, Concentrated fermentation: changing food waste fermented liquid is transported to after centralized treatment plant through changing food waste fermented liquid constant temperature transport trolley, the fermented liquid of carrying is pumped into and in Concentrated fermentation tank, concentrates lactic fermentation processing, to adding and promote the enzyme of fermentation or do not add in Concentrated fermentation tank, under the condition identical with step 1, step 2, continue fermentative processing;
Step 4, subsequent disposal: after fermentation ends, fermented liquid is carried out to follow-up product and extract and fermentation residue processing.
2. changing food waste treatment process according to claim 1, is characterized in that, the on-the-spot fermentation unit of changing food waste in described step 1 is automated fluid fermentor tank, and described automated fluid fermentor tank comprises:
For splendid attire raw-material fermentor tank to be fermented,
For the temperature controlling system of temperature in controlled fermentation tank,
For adjusting the pH value adjustment System of fermentor tank pH value,
For the airing system of air feed in fermentor tank,
With the stirring mechanism for stirred fermentor content.
3. changing food waste treatment process according to claim 1, is characterized in that, described step 2 Chinese meal kitchen garbage fermentation liquid constant temperature transport trolley comprises chassis and upper dress two portions, and described upper dress part, comprises
For the fermentation liquid bath tank of splendid attire fermented liquid and
Be located on fermentation liquid bath tank for gutter tank inner air pressure and carry out airfiltering respiratory organ,
For maintain homo(io)thermism in groove tank heating system,
For to carry in groove tank sterile air airing system,
Charging pumping system and discharge system.
4. changing food waste treatment process according to claim 3, is characterized in that, described fermentation liquid bath tank internal surface is corrosion resistant material, and outside surface is lagging material, inside establishes wave cutter, and the operating temperature range of fermentation liquid bath tank is 50～55 DEG C; Heating system comprises liquid-heater and radiator coil tube; Airing system is made up of gas distribution pipe in strainer, air pump and tank; Charging pumping system comprises the pipeline, pump and the vacuum breaker that are connected successively with fermentation liquid bath tank; Discharge system comprises discharge valve and is connected the pipeline of discharge valve with fermentation liquid bath tank.
5. changing food waste treatment process according to claim 1, it is characterized in that, described step 1 to the fermentation in step 3 is lactic fermentation mode, adopt anaerobically fermenting or aerobic fermentation, fermentation condition is set according to the difference adjustment of adopted bacterial classification, temperature range is 25～60 DEG C, and pH value scope is 6.5 ~ 7.5.
6. changing food waste treatment process according to claim 1, it is characterized in that, described step 1 to the fermentation in step 3 is to adopt extra mode of adding bacterial classification to realize, be specially: while fermentation first, to 1/30～1/15 the lactic-acid-bacterium fermentation seed liquid that drops into its volume in fermentation unit, changing food waste is unsterilised; When after the normal operation of fermentation unit, do not need each extra fermentation seed liquid that adds, but at each remaining ferment liquid that remains 1/30～1/15 volume after fermented liquid of drawing as seed liquor, leavening temperature scope is 25～60 DEG C.
7. changing food waste treatment process according to claim 1, it is characterized in that, described step 1 is not added bacterial classification to the fermentation in step 3, and changing food waste is unsterilised, rely on the milk-acid bacteria nature anaerobically fermenting naturally existing in changing food waste, 30 ~ 50 DEG C of leavening temperatures; The remaining ferment liquid that remains 1/30～1/15 volume after each absorption fermented liquid is as seed liquor.
8. changing food waste treatment process according to claim 1, is characterized in that, in described step 3, to adding ferment required nutritive substance and promote the enzyme of fermentation of microorganism in Concentrated fermentation tank.
9. changing food waste treatment process according to claim 1, is characterized in that, in described step 4, subsequent processes has two kinds:
The first, is for lactic acid producing fermentation mode, first fermented liquid is carried out to solid-liquid separation, and clear liquor is for lactic acid extraction; Extract waste water qualified discharge or utilization after purifying treatment after lactic acid; And isolated fermentation residue through sterilizing, dry after as feed;
The second, is for producing gemma fermentation mode, first fermented liquid is carried out to centrifugation and obtains gemma, gemma is mixed to oven dry with dry starch, adds batching, makes probiotics after mixing; Clear liquor qualified discharge or utilization after purification of waste water is processed.
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| CN103920697B (en) * | 2014-05-04 | 2016-01-20 | 千智伟 | A kind of castoff recycling treatment facility and processing method |
| CN106241017B (en) * | 2016-07-27 | 2019-12-10 | 叶志徐 | Manufacturing method of garbage bag with beneficial bacteria and garbage bag |
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