CN1903799A - Comprehensive treatment technology of kitchen garbage - Google Patents
Comprehensive treatment technology of kitchen garbage Download PDFInfo
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- CN1903799A CN1903799A CNA2006101096238A CN200610109623A CN1903799A CN 1903799 A CN1903799 A CN 1903799A CN A2006101096238 A CNA2006101096238 A CN A2006101096238A CN 200610109623 A CN200610109623 A CN 200610109623A CN 1903799 A CN1903799 A CN 1903799A
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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
Abstract
The present invention relates to a comprehensive treatment technique of restaurant kitchen garbage. Said technique includes the following steps: firstly, removing non-degradable components from said restaurant kitchen garbage, then breaking said garbage, making hydraulic separation to form cream liquor of organics. Said invention mainly includes three-stage high-speed centrifugal separation process, in which first stage centrifugal separation utilizes the cream liquor formed by hydraulic separator to produce solid dregs and oil-water mixture phase; second stage centrifugal separation utilizes the above-mentioned oil-water mixture phase to produce waste oil and clear water phase containing rich organics; the clear water phase and the above-mentioned cream liquor formed by blending solid dregs produced by first centrifugal separation are fed into fermentation tank, undergone the process of aerobic fermentation so as to form solid-liquid mixture, then the solid-liquid mixture is fed into third stage high-speed centrifugal machine to make solid-liquid separation to obtain heavy phase and light phase. Said heavy phase is solid fertilizer and the light phase is liquid biological organic fertilizer.
Description
Technical field
The present invention relates to handle comprehensive treatment technology of kitchen garbage.
Background technology
Changing food waste is meant swill, raffinate and the waste grease etc. that units such as hotel, restaurant, restaurant and office, army, universities and colleges, enterprise's cause produce in food-processing, catering service, unit such as serve the meals at active procedure.Comprise: the waste oil that swill (swill), sewer oil, fried Cargo Oil, food-processing industry produce.Rich in starch, protein, staple fibre, animal-plant oil etc., water ratio 50-80%, but the problem because of the process and the primary collection that produce, in depositing causes and contains a large amount of pathogeny microorganisms and foreign material.Per ten thousand day for human beings produce about 0.8～1.2 ton of changing food waste in China big and medium-sized cities.Changing food waste is the mixture of multiple refuse, and change of component is very big.Present treatment process mainly is landfill, burning and compost etc., and floor space is big, the treatment time is long, easily produces peculiar smell, pathogenic bacteria etc., and environment is caused secondary pollution.
Summary of the invention
The objective of the invention is to, overcome above-mentioned deficiency of the prior art, the integration scenario that provides a kind of changing food waste to handle, to reach when farthest reclaiming the resource of reproducible utilization in the changing food waste, minimizing takies and pollutes environmental resources, in the hope of obtaining double benefit economic and society.
The objective of the invention is to be achieved through the following technical solutions.
The main points of the technology of the present invention: utilize steam heating, crusher processing, the sorting of waterpower sorter, earlier the inorganic substance in the changing food waste are separated comparatively up hill and dale, and obtain containing the whey liquid of food particles, utilize the whey liquid that whizzer will contain food particles to be divided into grease and to contain other organic homogenates then, the further refining of grease becomes the base oil of making biofuel and other industrial chemicals.And contain other organic homogenates through after regulating materialization property, inoculate special high-temperature aerobic fermentation flora, through the primary and secondary fermenting twice, the fermentation end product is through the diagrid removal of impurities, utilize whizzer to carry out solid-liquid separation again, the solid phase that obtains is made biological compound organic fertilizer add other nutritions and oven dry, granulation, packing after chemically examining after, and remaining liquid phase is made liquid fertile after concentrating.
Treatment technology technological design of the present invention is reasonable, and controllability is strong, and is with short production cycle.The present invention simultaneously also provides a cover complete changing food waste treatment facility, comprising: material heating bath, steam boiler, crusher, waterpower sorter, supercentrifuge, damping jar, primary fermentation jar, secondary fermentation jar.
Description of drawings
Fig. 1 is a process flow sheet of the present invention;
Fig. 2 is ragging of the present invention, fragmentation, waterpower sorting, deodorizing and steam generating equipment
Fig. 3 is adjusting, oily water separation, the thick olein refining equipment of solid-liquid separation of the present invention, fermentation materials.
Fig. 4 is primary fermentation of the present invention, secondary fermentation agent fertilizer production unit.
Among Fig. 2: 1, changing food waste transfer car(buggy), 2, heating rough segmentation scavenger, 3, tooth harrow, 4, sump pump, 5, crusher, 6, the waterpower sorter, 7, steam boiler, 8, thick and stiff discarded inorganics, 9, vacuum fan, 10, tiny foreign material, 11, the material crossed of ragging, 12, the whey liquid of waterpower sorting, 13, vapour pipe, 14, foul smell pipe, 15, deodorizer, 16, the gas after handling
Among Fig. 3: 12, the whey liquid of waterpower sorting, 13, vapour pipe, 14, the foul smell pipe, 17, solid-liquid separating centrifuge, 18, the solid phase after the solid-liquid centrifugation, 19, the liquid phase after the solid-liquid centrifugation, 20, damping jar, 21, the profit separating centrifuge, 22, its external water pipe, 23, the water that obtains after the oily water separation, 24, water tank, 25, the oil phase that obtains after the oily water separation, 26, thick oily fining pot, 27, essential oil storage tank, 28, wait to ferment material
Among Fig. 4: 13, vapour pipe, 14, the foul smell pipe, 28, wait to send out cry material; 29, inoculation jar, 30, the primary fermentation jar, 31, the secondary fermentation jar; 32, Aeration stirrer, 33, aerator pump, 34, diagrid; 35, solid-liquid separating centrifuge, 36, reconcile jar, 37, dryer; 38, tablets press; 39, solid fertile wrapping machine, 40, the liquid fertilizer concentration tank, 41, the liquid fertilizer wrapping machine
Embodiment
As shown in Figure 1: its technical process comprises the following steps:
(1) ragging:, remove the thick and stiff rubbish of bulk wherein with the swill and the heating of trench wet goods changing food waste of collecting;
(2) break process: will send into crusher through the changing food waste after the elementary sorting, and be broken into pulpous state liquid;
(3) waterpower sorting: with the pulpous state liquid that step (2) produces, send into the waterpower sorter and carry out sorting, isolate wherein in thick and tiny solid particulate, obtain containing the whey liquid of fine particle;
(4) centrifugation: the whey liquid that step (3) is obtained earlier through solid-liquid, separate through profit two-stage supercentrifuge, makes whey liquid solid-liquid separation, oily water separation again;
(5) oil and fat refining: the thick grease that step (4) is obtained carries out refining, produces the base oil that is used to make biofuel and other Chemicals;
(6) solid phase that step (4) is obtained changes the damping jar over to, adds water and heats and regulate its pH value, prepares to carry out fermentative processing;
(7) primary fermentation: the material that step (6) is obtained changes the primary fermentation jar over to and carries out microbial inoculant, aeration-agitation simultaneously:
(8) secondary fermentation: will change and further carry out fermentative processing in the secondary fermentation jar aeration-agitation simultaneously over to through the material behind the primary fermentation;
(9) composting: material is through behind the secondary fermentation, filter out wherein foreign material with diagrid, nutrition is wherein chemically examined and added other nutrition, again through centrifugal, solid phase is through oven dry, granulation, operations such as packing are made solid-state composite bio-fertilizer, and liquid phase is made liquid composite bio-fertilizer after concentrating.
In step (1), the fermentative processing in grease separation for the benefit of and the following steps places steam to be heated to 100 ℃ earlier to the changing food waste of collecting, and through the changing food waste of heat treated, therefrom sorts out the thick and stiff rubbish of bulk with tooth harrow; Employed crusher in step (2) should reach the relatively large solid material that can will do not sorted out and carry out fragmentation in the material after the step (1); Waterpower sorting in the step (3) can reach stirring, throw away the thickness effect of slag, the levigate slag of strand admittedly, will be modulated into the whey liquid that only contains trickle meal kitchen food particles through the changing food waste slurries after the step (2); Earlier the whey liquid that obtains through step (3) is carried out high speed centrifugation and separate in step (4), the heavy phase that obtains changes fermentation composting flow process thereafter over to; What obtain gently is oil-water mixture mutually, it is sent into carry out the separation of secondary profit supercentrifuge, and wherein, the oil phase that obtains is through can be used as the raw material of production biofuel and other Chemicals after the refining; The aqueous phase that obtains contains water soluble protein, staple fibre, starch, VITAMIN, amino acid, trace element, sends in the damping jar.
Temperature in the step (6) is controlled at 50 ℃～60 ℃, and solid content is about 10%, and pH value scope is controlled between 6～8.In the step (7), material temperature, pH value, solid content etc. should with the damping jar in be consistent.
Shown in Fig. 2,3,4, a kind of comprehensive treatment equipment of changing food waste is made up of cracking and sorting equipment, thick olein refining equipment and fertiliser production equipment.
Cracking and sorting equipment mainly comprises: rough segmentation scavenger 2, crusher 5, waterpower sorter 6; Be provided with steam heating coil at the bottom of the pond of rough segmentation scavenger 2, the middle part is provided with the grid batten, and transfer pump 4 is connected with crusher 5 under the grid batten, and the output tube of crusher 5 is connected to waterpower sorter 6, obtains homogenate after the sorting.
Thick olein refining equipment mainly comprises: solid-liquid separating centrifuge 17, profit separating centrifuge 21, thick oily fining pot 26, essential oil storage tank 27; Be input to solid-liquid separating centrifuge 17 by the homogenate that obtains after 6 sortings of waterpower sorter, isolated liquid phase inserts profit separating centrifuge 21, water after the separation is received water tank 24, oil phase is received thick oily fining pot 26, essential oil storage tank 27 is received in output, and solid-liquid separating centrifuge 17 isolated solid phases are received damping jar 20.
Fertiliser production equipment mainly comprises: primary fermentation jar 30, secondary fermentation jar 31, aerator pump 33, solid-liquid separating centrifuge 35, dryer 37, tablets press 38, liquid fertilizer concentration tank 40; The fermentation materials for the treatment of by 20 outputs of damping jar inserts primary fermentation jar 30; secondary fermentation jar 31 is received in the output of primary fermentation jar 30; solid-liquid separating centrifuge 35 is received in the output of secondary fermentation jar 31; solid-liquid separating centrifuge 35; the one-tenth that regulates is distributed into dryer 37, sends into tablets press 38 after the oven dry: solid-liquid separating centrifuge 35 isolating liquid phases are received liquid fertilizer concentration tank 40.
Cooperate the operating process of changing food waste Processing Equipment as follows:
At first collect special-purpose vehicle 1 with changing food waste impouring heating rough segmentation scavenger 2 by changing food waste.Be provided with steam heating coil at the bottom of the pond of heating rough segmentation scavenger 2, the middle part is provided with the grid batten, it is provided with the tooth harrow 3 of automatic reciprocating motion, ceaselessly bigger foreign material is harrowed in the foreign material pond for the treatment of pond 2 one ends, and the changing food waste under the grid batten is in transfer pump 4 crushers 5.The bigger block that the blade that utilizes high speed rotating in crusher 5 is not sorted out in changing food waste is smashed, to send in the waterpower sorter 6 through broken changing food waste again, the function of waterpower sorter 6 is with removing through the thick solid particulate 10 of middle detail in the material after ragging and the fragmentation, to satisfy the isolating requirement of whizzer.
Through what obtain after the waterpower sorting is the homogenate 12 that contains tiny food particles, and homogenate 12 can be sent to carries out solid-liquid separation in the solid-liquid separating centrifuge 17.In heating ragging and fragmentation, water conservancy separating process, need to pass through pipeline 13 steam is fed with steam boiler 7, assurance helps the carrying out of steps such as follow-up fermentation to the continuous heat treated of material.Among Fig. 2 15 is foul smell treatment chambers, in whole process of production, by in 14 foul smell suction foul smell treatment chambers 15 that produce of pipeline, obtains gas 16 with off-gas pump 9 after deodorizing, is discharged.
Referring to Fig. 3, be the homogenate 12 that contains tiny food particles through what obtain after the waterpower sorting, be sent in the solid-liquid separating centrifuge 17, obtain solid phase 18 and liquid phase 19 through after the centrifugation, solid phase 18 is sent in the damping jar 20.Liquid phase 19 is sent to carries out centrifugation in the profit separating centrifuge 21, obtaining oil phase sends in the oil and fat refining jar 26, deliver in the storage tank 27 through after the refining, the water that obtains is admitted in the damping jar 20, be used to regulate the solid content of solid phase 18, when the region of rivers and lakes of separating from the profit whizzer is regulated the solid phase solid content the damping jar 20 inadequately or is not suitable for re-using, can add tap water to regulate solid content by outer filler pipe 22.Fermentation materials 28 will be sent in the primary fermentation jar ferments for treating of regulating.In carrying out oil and fat refining process, use steam-pipe 13 to feed steam, and by the fuel-displaced valve of practical situation with steaming out oil and fat refining jar, the foul smell that produces during oil and fat refining is taken away by foul smell pipe 14.
Referring to Fig. 4; the fermentation materials 28 for the treatment of that will mix up in damping jar 20 is sent in the primary fermentation jar 30; insert the high-temperature aerobic microorganism species in the enlarged culturing case 29; carry out aeration-agitation with aeration-agitation machine 32 simultaneously; material behind primary fermentation is sent into secondary fermentation jar 31 relaying supervention ferment again; in the secondary fermentation process, want aeration-agitation equally; behind secondary fermentation; available 10% fermented product is sent into the inoculation that is used for the next batch material in bunch collection fermentor tank; remaining material is sent into centrifugation in the solid-liquid whizzer 35 behind diagrid 34; the solid phase that obtains changes regulating tank 36 over to; after regulating nutrition, send in the dryer 37; send into after the drying in the tablets press 38, behind the granulating and forming, be packaged into bag by wrapping machine 39.Solid-liquid separating machine 35 isolated liquid phases are sent in the liquid fertilizer concentration tank 40, after concentrating, are packaged into bag by wrapping machine 41.In primary fermentation and secondary fermentation process, all need to purge with the steam heating insulation with to the discharging valve, the foul smell of generation is extracted out by foul smell pipe 14.
Claims (8)
1, a kind of comprehensive treatment technique of changing food waste is characterized in that: its technical process comprises the following steps:
(1) ragging:, remove the thick and stiff rubbish of bulk wherein with the swill and the heating of trench wet goods changing food waste of collecting;
(2) break process: will send into crusher through the changing food waste after the elementary sorting, and be broken into pulpous state liquid;
(3) waterpower sorting: with the pulpous state liquid that step (2) produces, send into the waterpower sorter and carry out sorting, isolate wherein in thick and tiny solid particulate, obtain containing the whey liquid of fine particle;
(4) centrifugation: the whey liquid that step (3) is obtained earlier through solid-liquid, separate through profit two-stage supercentrifuge, makes whey liquid solid-liquid separation, oily water separation again;
(5) oil and fat refining: the thick grease that step (4) is obtained carries out refining, produces the base oil that is used to make biofuel and other Chemicals;
(6) solid phase that step (4) is obtained changes the damping jar over to, adds water and heats and regulate its pH value, prepares to carry out fermentative processing;
(7) primary fermentation: the material that step (6) is obtained changes the primary fermentation jar over to and carries out microbial inoculant, aeration-agitation simultaneously;
(8) secondary fermentation: will change and further carry out fermentative processing in the secondary fermentation jar aeration-agitation simultaneously over to through the material behind the primary fermentation;
(9) composting: material is through behind the secondary fermentation, filter out wherein foreign material with diagrid, liquid phase is made liquid bio-fertilizer after concentrating, solid phase is through chemically examining nutrition wherein and requiring to add the extra-nutrition composition according to plant growth, operations such as oven dry again, granulation, packing are made solid-state composite bio-fertilizer.
2, press the comprehensive treatment technique of the described changing food waste of claim 1, it is characterized in that: in step (1), fermentative processing in grease separation for the benefit of and the following steps, place steam to be heated to 100 ℃ earlier to the changing food waste of collecting, through the changing food waste of heat treated, therefrom sort out the thick and stiff rubbish of bulk with tooth harrow.
3, by the comprehensive treatment technique of the described changing food waste of claim 1, it is characterized in that: employed crusher in step (2) should reach the relatively large solid material that can will do not sorted out and carry out fragmentation in the material after the step (1).
4, press the comprehensive treatment technique of the described changing food waste of claim 1, it is characterized in that: the waterpower sorting in the step (3), can reach stirring, throw away the thickness effect of slag, the levigate slag of strand admittedly, will be modulated into the whey liquid that only contains trickle meal kitchen food particles through the changing food waste slurries after the step (2).
5, by the comprehensive treatment technique of the described changing food waste of claim 1, it is characterized in that: earlier the whey liquid that obtains through step (3) is carried out high speed centrifugation and separate in step (4), the heavy phase that obtains changes fermentation composting flow process thereafter over to; What obtain gently is oil-water mixture mutually, it is sent into carry out the separation of secondary profit supercentrifuge, and wherein, the oil phase that obtains is through can be used as the raw material of production biofuel and other Chemicals after the refining; The aqueous phase that obtains contains water soluble protein, staple fibre, starch, VITAMIN, amino acid, trace element, sends in the damping jar.
6, by the comprehensive treatment technique of the described changing food waste of claim 1, it is characterized in that: in step (6), temperature is controlled at 50 ℃～60 ℃, and solid content is about 10%, and pH value scope is controlled between 6～8.
7, by the comprehensive treatment technique of the described changing food waste of claim 1, it is characterized in that: in step (7), material temperature, pH value, solid content etc. should with the damping jar in be consistent.
8, a kind of comprehensive treatment equipment of changing food waste is characterized in that: be made up of steam boiler (7), cracking and sorting equipment, thick olein refining equipment and fertiliser production equipment;
Cracking and sorting equipment mainly comprises: rough segmentation scavenger (2), crusher (5), waterpower sorter (6); Be provided with steam heating coil at the bottom of the pond of rough segmentation scavenger (2), the middle part is provided with the grid batten, and transfer pump under the grid batten (4) is connected with crusher (5), and the output tube of crusher (5) is connected to waterpower sorter (6), obtains homogenate after the sorting;
Thick olein refining equipment mainly comprises: solid-liquid separating centrifuge (17), profit separating centrifuge (21), thick oily fining pot (26), essential oil storage tank (27); Be input to solid-liquid separating centrifuge (17) by the homogenate that obtains after waterpower sorter (6) sorting, isolated liquid phase inserts profit separating centrifuge (21), water after the separation is received water tank (24), oil phase is received thick oily fining pot (26), essential oil storage tank (27) is received in output, and the isolated solid phase of solid-liquid separating centrifuge (17) is received damping jar (20);
Fertiliser production equipment mainly comprises: primary fermentation jar (30), secondary fermentation jar (31), aerator pump (33), solid-liquid separating centrifuge (35), dryer (37), tablets press (38), liquid fertilizer concentration tank (40); The fermentation materials for the treatment of by damping jar (20) output inserts primary fermentation jar (30), secondary fermentation jar (31) is received in the output of primary fermentation jar (30), solid-liquid separating centrifuge (35) is received in the output of secondary fermentation jar (31), solid-liquid separating centrifuge (35), the one-tenth that regulates is distributed into dryer (37), sends into tablets press (38) after the oven dry; The isolating liquid phase of solid-liquid separating centrifuge (35) is received liquid fertilizer concentration tank (40).
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| CNA2006101096238A CN1903799A (en) | 2006-08-11 | 2006-08-11 | Comprehensive treatment technology of kitchen garbage |
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| CN101850349A (en) * | 2010-04-29 | 2010-10-06 | 云南天兰环保科技开发有限公司 | Processing method of changing food waste into resources |
| CN101955382A (en) * | 2010-08-16 | 2011-01-26 | 广州农冠生物科技有限公司 | Treatment method and treatment system of food wastes |
| CN101058097B (en) * | 2007-05-31 | 2011-04-06 | 张虎明 | Resource using method for food and drink garbage |
| CN102060577A (en) * | 2009-11-18 | 2011-05-18 | 余福华 | Equipment for treating swill into organic fertilizers |
| CN102153379A (en) * | 2010-12-02 | 2011-08-17 | 北京工商大学 | Method for producing liquid organic bacterial manure by utilizing waste liquor of restaurants and kitchens |
| CN102351363A (en) * | 2011-08-30 | 2012-02-15 | 中联重科股份有限公司 | Kitchen waste treatment system |
| CN102453614A (en) * | 2011-05-23 | 2012-05-16 | 台州职业技术学院 | New method for comprehensively utilizing food wastes |
| CN102464501A (en) * | 2010-11-05 | 2012-05-23 | 华南师范大学 | Method for rapidly processing municipal food wastes |
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| CN102580977A (en) * | 2011-12-31 | 2012-07-18 | 福建广汇龙环保科技有限公司 | System for transforming kitchen waste into new energy |
| CN102601101A (en) * | 2011-01-24 | 2012-07-25 | 北京中源创能工程技术有限公司 | Method for realizing innocent treatment and comprehensive utilization of kitchen waste |
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| CN102936053A (en) * | 2011-08-15 | 2013-02-20 | 上海兰艳实业有限公司 | Novel grease separator |
| CN103013671A (en) * | 2011-09-26 | 2013-04-03 | 上海兰艳实业有限公司 | Oil-fat separation device adopting secondary standing separation |
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| CN103641519A (en) * | 2013-12-18 | 2014-03-19 | 青岛福创环境科技有限公司 | Method for producing novel fertilizer by resourcefully utilizing kitchen wastes |
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| CN101058097B (en) * | 2007-05-31 | 2011-04-06 | 张虎明 | Resource using method for food and drink garbage |
| CN102060577B (en) * | 2009-11-18 | 2013-08-14 | 余福华 | Equipment for treating swill into organic fertilizers |
| CN102060577A (en) * | 2009-11-18 | 2011-05-18 | 余福华 | Equipment for treating swill into organic fertilizers |
| CN101850349A (en) * | 2010-04-29 | 2010-10-06 | 云南天兰环保科技开发有限公司 | Processing method of changing food waste into resources |
| CN101955382A (en) * | 2010-08-16 | 2011-01-26 | 广州农冠生物科技有限公司 | Treatment method and treatment system of food wastes |
| CN101955382B (en) * | 2010-08-16 | 2012-09-19 | 广州农冠生物科技有限公司 | Treatment method and treatment system of food wastes |
| CN102464501A (en) * | 2010-11-05 | 2012-05-23 | 华南师范大学 | Method for rapidly processing municipal food wastes |
| CN102153379A (en) * | 2010-12-02 | 2011-08-17 | 北京工商大学 | Method for producing liquid organic bacterial manure by utilizing waste liquor of restaurants and kitchens |
| CN102601101B (en) * | 2011-01-24 | 2016-05-11 | 北京中源创能工程技术有限公司 | A kind of method that realizes changing food waste harmless treatment and comprehensive utilization |
| CN102601101A (en) * | 2011-01-24 | 2012-07-25 | 北京中源创能工程技术有限公司 | Method for realizing innocent treatment and comprehensive utilization of kitchen waste |
| CN102690134B (en) * | 2011-03-21 | 2014-12-24 | 焦社杰 | Processing method and processing system for kitchen garbage resourcilization |
| CN102690134A (en) * | 2011-03-21 | 2012-09-26 | 焦社杰 | Processing method and processing system for kitchen garbage resourcilization |
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