CN101274860A - Processing method for changing restaurant and kitchen garbage into resource without environmental pollution - Google Patents
Processing method for changing restaurant and kitchen garbage into resource without environmental pollution Download PDFInfo
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- CN101274860A CN101274860A CNA2008103015821A CN200810301582A CN101274860A CN 101274860 A CN101274860 A CN 101274860A CN A2008103015821 A CNA2008103015821 A CN A2008103015821A CN 200810301582 A CN200810301582 A CN 200810301582A CN 101274860 A CN101274860 A CN 101274860A
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- 238000003672 processing method Methods 0.000 title claims description 14
- 239000010813 municipal solid waste Substances 0.000 title abstract description 6
- 238000003912 environmental pollution Methods 0.000 title description 2
- 238000006243 chemical reaction Methods 0.000 claims abstract description 16
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 13
- 230000001105 regulatory effect Effects 0.000 claims abstract description 10
- 239000003337 fertilizer Substances 0.000 claims abstract description 8
- 241000411851 herbal medicine Species 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 41
- 239000010794 food waste Substances 0.000 claims description 39
- 239000000126 substance Substances 0.000 claims description 23
- 238000005273 aeration Methods 0.000 claims description 17
- 239000007787 solid Substances 0.000 claims description 15
- 239000007789 gas Substances 0.000 claims description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 9
- 229910052760 oxygen Inorganic materials 0.000 claims description 9
- 239000001301 oxygen Substances 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 7
- 241001074903 Methanobacteria Species 0.000 claims description 6
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 6
- 230000018044 dehydration Effects 0.000 claims description 5
- 238000006297 dehydration reaction Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 238000010298 pulverizing process Methods 0.000 claims description 5
- 239000010865 sewage Substances 0.000 claims description 5
- 230000001954 sterilising effect Effects 0.000 claims description 5
- 238000004659 sterilization and disinfection Methods 0.000 claims description 5
- 238000006477 desulfuration reaction Methods 0.000 claims description 4
- 230000023556 desulfurization Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 239000003921 oil Substances 0.000 claims description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- 239000005864 Sulphur Substances 0.000 claims description 3
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 claims description 3
- 235000010261 calcium sulphite Nutrition 0.000 claims description 3
- 230000015556 catabolic process Effects 0.000 claims description 3
- 238000005352 clarification Methods 0.000 claims description 3
- 238000006731 degradation reaction Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 239000003895 organic fertilizer Substances 0.000 claims description 3
- 230000035484 reaction time Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000005276 aerator Methods 0.000 claims description 2
- 230000001580 bacterial effect Effects 0.000 claims description 2
- 238000010248 power generation Methods 0.000 claims description 2
- 239000002244 precipitate Substances 0.000 claims description 2
- 238000001556 precipitation Methods 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims description 2
- 238000010790 dilution Methods 0.000 claims 1
- 239000012895 dilution Substances 0.000 claims 1
- 238000000855 fermentation Methods 0.000 abstract description 4
- 239000011344 liquid material Substances 0.000 abstract 5
- 238000011084 recovery Methods 0.000 abstract 2
- 230000008929 regeneration Effects 0.000 abstract 2
- 238000011069 regeneration method Methods 0.000 abstract 2
- 238000004062 sedimentation Methods 0.000 abstract 2
- 241000894006 Bacteria Species 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 239000011343 solid material Substances 0.000 abstract 1
- 241001148471 unidentified anaerobic bacterium Species 0.000 abstract 1
- 230000008569 process Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 102000004169 proteins and genes Human genes 0.000 description 3
- 108090000623 proteins and genes Proteins 0.000 description 3
- 241001465754 Metazoa Species 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 241000282887 Suidae Species 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000050 nutritive effect Effects 0.000 description 1
- 230000005180 public health Effects 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 238000000967 suction filtration Methods 0.000 description 1
- 235000021404 traditional food Nutrition 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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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
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/87—Re-use of by-products of food processing for fodder production
-
- 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
- Y02W30/20—Waste processing or separation
-
- 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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- Fertilizers (AREA)
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention relates to a treating method for energy regeneration, resource recovery and pollution free of restaurant garbage, which comprises the steps that separated liquid material is pumped into a swage concentrating pool; then the concentrated liquid material is discharged into a regulating and pretreating pool, in which methane bacteria are inoculated; the pretreated liquid material is discharged into an anaerobic fermentation pool, in which anaerobic bacteria groups are added so that methane gas is generated and the overflowing liquid material from the anaerobic fermentation pool is led to enter an aerobic aerated pool for aerobic reaction; the liquid material after the aerobic reaction is discharged into a sedimentation tank for sedimentation. In the comprehensive utilization of 'swill', the disposing method of the invention carries out anaerobic fermentation and aerobic aerated biochemical treatment to transform part of the energy in the swill into bio-energy which is then transformed into heat energy and finally into electrical energy that is connected with power grid for use. The separated solid material is smashed, dried, sterilized, dehydrated and then added with Chinese herbal medicine to be processed into Chinese herbal medicine compound feeds and fertilizers; meanwhile, the treatment of energy regeneration, resource recovery and pollution free of restaurant garbage for restaurant garbage is realized.
Description
(1) technical field
The present invention relates to a kind of treatment process of changing food waste.
(2) background technology
Along with improving constantly of economic level, the catering trade in each city is also in continuous development, and the changing food waste of each big city output has all reached the hundreds of ton to last kiloton, has not only caused the great wasting of resources, has also become the thorny problem in the environment protection.It is a rare tangible wealth that changing food waste is handled well, deals with improperly to become very big source of pollution., quantitative analysis qualitative through the applicant, moisture content 75～80% in the changing food waste, solid substance 20～25%, protein 17 in the solid substance～22%, fat 2.8～3.5%, fiber 2.5%.Chemical oxygen demand COD is generally more than 100,000.Containing abundant fat in the changing food waste, as causing the eutrophication of water quality in the unordered inflow rivers,lakes and seas, cause water quality to worsen on a large scale, is serious source of pollution to environmental protection.
The traditional food garbage treatment process of China is still directly goes to feed pigs.Feed animal dis in following problem without the changing food waste of harmless treatment:
(1), changing food waste is a contagium, is easy to generate public health hidden danger.
(2), changing food waste is directly fed pig " homology " disease takes place easily, bring loss to the raiser.
(3), the rubbish pig fed with changing food waste comes into the market in a large number, the harm common people's is healthy.
The Chinese government forbids feeding animal without the changing food waste of harmless treatment, but has little effect.Along with deepening continuously of reform and opening-up, governments at all levels of both the central and local governments put on agenda " changing food waste harmless treatment ".Realize economic continual and steady development, extremely urgent to the harmless treatment of changing food waste.
It all is that the changing food waste that will collect is through transportation, letter sorting that the changing food waste of newly-developed is concentrated method for innocent treatment, and water, oil, solid substance separate, solid substance in the swill is processed into protein fodder and fertilizer after treatment, this all belongs to the treatment process of " resource utilization is utilized again ", and its complementary energy that is contained in the swill is not reasonably fully utilized, and can not realize generating electricity by way of merging two or more grid systems.How changing food waste realizes simultaneously that as a kind of resource and the energy energy, resource utilization, nuisancelessization, this profitable " rich ore " resource of rational exploitation are still a technical barrier that urgency is to be solved.
(3) summary of the invention
The purpose of this invention is to provide a kind of changing food waste energy, resource utilization, non-pollution processing method, solve science, rationally utilize changing food waste, it handles the technical problem that realizes energy, resource utilization, nuisancelessization simultaneously.
For achieving the above object, the present invention adopts following technical scheme:
This changing food waste energy, resource utilization, non-pollution processing method, comprise collection, transportation, the letter sorting of changing food waste, and the separation of water, oil, solid substance, isolated solid substance becomes feed and fertilizer through pulverizing, oven dry, sterilization, dehydration post-treatment, it is characterized in that also having following steps:
A, isolated water shape thing is pumped into the sewage centralized pool earlier;
B, the water shape thing of concentrating entered regulate in the pretreatment pool;
C, pretreated water shape thing enter in the anaerobically fermenting pond, in the pond, inoculate methanobacteria, and water shape thing is diluted to the degree that is fit to the anerobe reaction, increase the anerobe group in the anaerobically fermenting pond, and stir and make itself and the new abundant contact reacts of liquid, produce methane gas, drive gas turbine power generation during the methane gas burning, generate electricity and can directly insert supply network, realize the conversion and the utilization of the energy.
The water shape thing that overflows in d, the anaerobically fermenting pond enters the aerobic aeration pond and carries out aerobic reaction, and implements aeration in the aeration tank;
E, the water shape thing behind the aerobic reaction entered in the settling tank precipitate, get methanobacteria and inoculate the anaerobically fermenting pond.
Among the above-mentioned steps a, the sewage centralized pool can be two～three grades.
Among the above-mentioned steps b, regulate that pretreatment pool can be level Four or more than the level Four;
The first step is regulated pretreatment pool and is used to get oil;
The second stage is regulated pretreatment pool and is used for acidified degradation;
The third stage is regulated pretreatment pool and is used for desulfurization, with liquor calcis, with the element sulphur reaction that water shape thing decomposites, becomes calcium sulfate, calcium sulfite precipitation;
The fourth stage is regulated pretreatment pool and is used to regulate the pH value, and the pH value of water shape thing is adjusted to 6.87.2, is slight alkalinity;
Among the above-mentioned steps c, the method for stirring is to stir the up-flow method with fluid power promptly to utilize the rising of liquid stream to play agitaion, installs the pump circulation water distributor in the anaerobically fermenting pond additional, to reach the purpose that water and bacterial classification fully contact.
Among the above-mentioned steps c, the feed control in anaerobically fermenting pond is the 1/5-1/6 of chemical oxygen demand COD total amount, and the discharging in anaerobically fermenting pond is to overflow automatically, goes out on advancing under carrying out.
Among the above-mentioned steps c, the omnidistance reaction times of water shape thing in the anaerobically fermenting pond can be 5～6 days, when the chemical oxygen demand COD of water shape thing drains into the aerobic aeration pond during less than 800mg/L.
Among the above-mentioned steps d, can in the aerobic aeration pond, implement aeration with gas blower or aerator.
Among the above-mentioned steps d,, enter in the settling tank when the chemical oxygen demand COD of water shape thing during less than 500mg/L.
Among the above-mentioned steps e, the chemical oxygen demand COD of discharging the water shape thing outside the pond after the settling tank clarification is controlled at below the 400mg/L.
Above-mentioned isolated solid substance can add herbal medicine and be processed into herbal medicine mixed feed and fertilizer or directly be processed into bio-organic fertilizer after pulverizing, oven dry, sterilization, dehydration.
Compared with prior art the present invention has following characteristics and beneficial effect:
The present invention in conjunction with biogas fermentation, utilizes flow lifting type anaerobic reactor UASB (Up-flow Anaerobic Sludge Bed) and aerobic aeration tank in the comprehensive utilization to " swill ".Carry out anaerobically fermenting and aerobic aeration biochemical and handle, surplus sludge volume is few, and the biogas of output is a kind of clean energy, and the portion of energy in the swill changes into more biogas bioenergy, again these bioenergys is changed into heat energy, finally changes into electric energy.Change into the clean energy electricity after treatment, be connected to the grid, realize the energy of changing food waste.Simultaneously, the solid substance in whole operational path in the changing food waste also is fully utilized, and the solid substance in this resource of swill is processed into protein fodder and fertilizer after treatment, realizes that the resource utilization of changing food waste is utilized again.Not only avoid the wasting of resources, also avoided environmental pollution.The waste water that the present invention discharges reaches emission standard fully through the monitoring of Wuxi City Binhu District environment measuring station.The present invention reaches the comprehensive regulation with environmental protection, the energy, agriculture each side science, organic being together in series reasonably, realizes recycling economy, has realized energy, resource utilization, nuisancelessization of changing food waste simultaneously.When obtaining economic benefit, social benefit, for recycling economy lays a solid foundation.
(4) description of drawings
The present invention is further detailed explanation below in conjunction with accompanying drawing.
Fig. 1 is a process flow diagram of the present invention.
(5) embodiment
The present invention handles the water shape thing that suction filtration comes out in the changing food waste, promptly contains the grease emulsifying waste water of high concentration COD, allows changing food waste water shape thing turn waste into wealth, and by biochemical reaction, is converted into the energy.Embodiment is referring to shown in Figure 1:
A, changing food waste is collected, transports, sorted, and the separation of water, oil, solid substance, isolated water shape thing is pumped into two～three grades of sewage centralized pool earlier.Above-mentioned isolated solid substance adds herbal medicine and is processed into herbal medicine mixed feed and fertilizer or directly is processed into bio-organic fertilizer after pulverizing, oven dry, sterilization, dehydration.
B, adjusting pretreatment pool should use multistage (more than at least four), the first step be get oil, the second stage reaches acidified degradation, desulfurization is implemented in third stage pond, make element sulphur reaction the becoming materials such as calcium sulfate, calcium sulfite that decomposite with liquor calcis, realize desulfurization, fourth stage pond from 5 left and right adjusting to 6.8-7.2, is slight alkalinity with the pH value for regulating the pH value.
C, in anaerobically fermenting pond or fermentor tank, install the pump circulation water distributor additional, adopt fluid power to stir the up-flow method, make current go out to increase the anerobe group on advancing under carrying out, in the pond, inoculate methanobacteria, and water shape thing is diluted to the degree (COD content 40000mg/L) that is fit to the anerobe reaction, make its can with the abundant contact reacts of new liquid, promoted speed of reaction and gas production rate so greatly.The COD that can make pond into or advance jar in 24 hours drops to 30005000 about from 10,000, the whole process reaction times is 5-6 days, realized energy transformation in this course, original carbohydrate is converted into methane gas, nutritive ingredient in the changing food waste is converted into bioenergy, change into heat energy again by bioenergy, change into electric energy at last and be connected to the grid.
Feed control in anaerobically fermenting pond or the fermentor tank is the 1/5-1/6 of total amount, no matter add the hogwash or the swill of underflow, total amount is meant the total amount of COD, should control well, in case meeting out of control causes cenobium death in the fermentor tank, must be from new cultivation, can desire speed on the contrary and do not reach.The discharging of fermentor tank is overflowed automatically, Yi Bian charging, the other side overflows automatically.
The COD of the water shape thing that overflows in d, anaerobically fermenting pond or the fermentor tank is about 800mg/L, enter the aeration tank aerobic reaction, in the unit time, (point to second batch of time of overflowing), under the condition of 20 ℃ of temperature, in the aeration tank, implement aeration with gas blower, make COD drop to 400-500mg/L, to reach state three grade emissioning standard.
E, enter settling tank, through the clarification of settling tank, also can fall COD100mg/L, the water shape thing of discharging settling tank can be controlled in the scope of COD300-400mg/L, gets methanobacteria and inoculates the anaerobically fermenting pond.
Claims (10)
1. a changing food waste energy, resource utilization, non-pollution processing method, comprise collection, transportation, the letter sorting of changing food waste, and the separation of water, oil, solid substance, isolated solid substance becomes feed and fertilizer through pulverizing, oven dry, sterilization, dehydration post-treatment, it is characterized in that also having following steps:
A, isolated water shape thing is pumped into the sewage centralized pool earlier;
B, the water shape thing of concentrating entered regulate in the pretreatment pool;
C, pretreated water shape thing enter in the anaerobically fermenting pond, in the pond, inoculate methanobacteria, and water shape thing dilution decomposed the degree (COD content 40000mg/L) that is fit to the anerobe reaction, increase the anerobe group in the anaerobically fermenting pond, and stir and make itself and the new abundant contact reacts of liquid, produce methane gas, drive gas turbine power generation during the methane gas burning, generate electricity and can directly insert supply network, realize the conversion and the utilization of the energy.
The water shape thing that overflows in d, the anaerobically fermenting pond enters the aerobic aeration pond and carries out aerobic reaction, and implements aeration in the aeration tank;
E, the water shape thing behind the aerobic reaction entered in the settling tank precipitate, get methanobacteria and inoculate the anaerobically fermenting pond.
2. changing food waste energy according to claim 1, resource utilization, non-pollution processing method is characterized in that: among the above-mentioned steps a, the sewage centralized pool is two～three grades.
3. changing food waste energy according to claim 1, resource utilization, non-pollution processing method is characterized in that: among the above-mentioned steps b, regulate pretreatment pool and be level Four or more than the level Four;
The first step is regulated pretreatment pool and is used to get oil;
The second stage is regulated pretreatment pool and is used for acidified degradation;
The third stage is regulated pretreatment pool and is used for desulfurization, with liquor calcis, with the element sulphur reaction that water shape thing decomposites, becomes calcium sulfate, calcium sulfite precipitation;
The fourth stage is regulated pretreatment pool and is used to regulate the pH value, and the pH value of water shape thing is adjusted to 6.8-7.2, is slight alkalinity.
4. changing food waste energy according to claim 1, resource utilization, non-pollution processing method, it is characterized in that: among the above-mentioned steps c, the method of stirring is to stir the up-flow method with fluid power promptly to utilize the rising of liquid stream to play agitaion, in the anaerobically fermenting pond, install the pump circulation water distributor additional, to reach the purpose that water and bacterial classification fully contact.
5. changing food waste energy according to claim 1, resource utilization, non-pollution processing method, it is characterized in that: among the above-mentioned steps c, the feed control in anaerobically fermenting pond is the 1/5-1/6 of chemical oxygen demand COD total amount, and the discharging in anaerobically fermenting pond is to overflow automatically, goes out on advancing under carrying out.
6. changing food waste energy according to claim 1, resource utilization, non-pollution processing method, it is characterized in that: among the above-mentioned steps c, the omnidistance reaction times of water shape thing in the anaerobically fermenting pond is 5～6 days, when the chemical oxygen demand COD of water shape thing drains into the aerobic aeration pond during less than 800mg/L.
7. changing food waste energy according to claim 1, resource utilization, non-pollution processing method is characterized in that: among the above-mentioned steps d, implement aeration with gas blower or aerator in the aerobic aeration pond.
8. changing food waste energy according to claim 1, resource utilization, non-pollution processing method is characterized in that: among the above-mentioned steps d, when the chemical oxygen demand COD of water shape thing during less than 500mg/L, enter in the settling tank.
9. changing food waste energy according to claim 1, resource utilization, non-pollution processing method is characterized in that: among the above-mentioned steps e, the chemical oxygen demand COD of discharging the water shape thing outside the pond after the settling tank clarification is controlled at below the 400mg/L.
10. changing food waste energy according to claim 1, resource utilization, non-pollution processing method is characterized in that: above-mentioned isolated solid substance adds herbal medicine and is processed into herbal medicine mixed feed and fertilizer or directly is processed into bio-organic fertilizer after pulverizing, oven dry, sterilization, dehydration.
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844144A (en) * | 2009-03-26 | 2010-09-29 | 邱泽国 | Method and apparatus for totally-closed garbage emission and transmission atomization and comprehensive utilization |
| 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 |
| CN102093099A (en) * | 2010-12-16 | 2011-06-15 | 雪合来提 | Device for preparing organic liquid fertilizer by using restaurant kitchen garbage |
| CN102172604A (en) * | 2011-02-24 | 2011-09-07 | 北京瑞杰灵通环境工程技术有限公司 | Kitchen organic waste completely-recycling biological treatment technology |
| CN102464501A (en) * | 2010-11-05 | 2012-05-23 | 华南师范大学 | A method for rapidly processing urban kitchen waste |
| CN101624300B (en) * | 2009-08-03 | 2012-06-13 | 安徽莱姆佳肥业有限公司 | Method for removing heavy metal in solid organic waste compost |
| CN102603117A (en) * | 2012-03-07 | 2012-07-25 | 江苏兆盛环保集团有限公司 | Treatment method of secondary wastewater of kitchen waste |
| CN102747108A (en) * | 2012-07-23 | 2012-10-24 | 潍坊金丝达环境工程股份有限公司 | Method for recycling kitchen waste |
| CN102951934A (en) * | 2011-08-24 | 2013-03-06 | 江苏洁净环境科技有限公司 | Treating process for kitchen waste |
| CN103043845A (en) * | 2011-10-11 | 2013-04-17 | 中国环境科学研究院 | Treatment method and device for kitchen waste sewage |
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