CN105798050B - Kitchen castoff cooperates with treatment process with domestic garbage burning electricity generation - Google Patents
Kitchen castoff cooperates with treatment process with domestic garbage burning electricity generation Download PDFInfo
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- CN105798050B CN105798050B CN201610164888.1A CN201610164888A CN105798050B CN 105798050 B CN105798050 B CN 105798050B CN 201610164888 A CN201610164888 A CN 201610164888A CN 105798050 B CN105798050 B CN 105798050B
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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
- Y02W30/20—Waste processing or separation
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Abstract
Kitchen castoff cooperates with treatment process with domestic garbage burning electricity generation, including step in detail below：（1）, kitchen garbage is collected；（2）, to after collection kitchen garbage carry out foreign substances sorting, the combustible sorted out be transported to MSW Incineration Plant carry out combustion power generation；（3）, to foreign substances sort after material crush processing；（4）, to after crushing material carry out homogenization；（5）, the material after homogenization is carried out dehydrating, the liquid material that dehydration obtains is kept in；（6）, grease first separation processing is carried out to liquid material, the moisture content that grease first separation is handled is collected into anaerobic fermentation tank, and biogas residue, biogas slurry and biogas are generated after anaerobic fermentation, and biogas residue, biogas slurry are detached.Present invention process is advanced, fully rationally cooperates with processing advantage with what kitchen garbage fermented using MSW Incineration Plant, realizes the innoxious of garbage disposal, minimizing, recycling.
Description
Technical field
The invention belongs to technical field of waste treatment more particularly to a kind of kitchen castoff to assist with domestic garbage burning electricity generation
Same treatment process.
Background technology
Kitchen garbage（Kitchen castoff）It is most important one kind in food refuse, including family, school, dining room and food and drink
The food process leftover bits and pieces (food waste) of the generations such as industry and edible remnants (hogwash).Its complicated component, mainly oil, water, pericarp,
The mixture of many kinds of substance such as vegetables, rice and flour, fish, meat, bone and useless tableware, plastics, paper handkerchief, chemically on composition, there is shallow lake
Powder, cellulose, protein, lipid and inorganic salts.China's kitchen garbage quantity is very huge, and in rapid increase trend.
Kitchen garbage has the dual character of significant harm and resource, and feature can be summarized as：Moisture content height, reachable 80%
- 95%；Salt content is high, some areas are high containing capsicum, acetic acid；High organic content, protein, cellulose, starch, fat
Deng；Rich in nitrogen, phosphorus, potassium, calcium and various trace elements；There are pathogen, pathogenic microorganisms；Perishable, rotten, smelly, taste
Raw mosquito.
In terms of waste of resource, calculate according to Ministry of Agriculture relevant expert, kitchen garbage includes a large amount of nutriment, mainly into
It is that grease and protein, alternative corn, fish meal, dregs of beans etc. are processed into high energy protein high-quality feed and produce biological bavin to divide
The suitable raw material of oil.Expert interpretation is calculated by dry matter content, and 50,000,000 tons of kitchen garbages are equivalent to 5,000,000 tons of high-quality feeding
Material, the energy included are equivalent to the energy quantum of output in annual 10000000 mu of arable lands, and the protein included is equivalent to annual 20000000
The protein quantum of output of mu soybean.That is, if the kitchen garbage of the 1 year output in China is all utilized, it is equivalent to section
About 10,000,000 mus arable lands.In face of Chinese arable land anxiety, food shortage, the present situation of a large amount of food import feeds is needed every year, is closed
Reason is increase resource utilization, the effective way for solving China's food problem to a certain extent using kitchen garbage.Also, this
Kind utilizes, and meets minimizing, recycling, recycling feature, is the lively case developed a circular economy.
Mainly there is the following for kitchen garbage harmfulness：
（1）It pollutes environment, influence the appearance of the city.Because kitchen garbage contains higher organic matter and moisture, easily by microorganism
Effect, and the phenomenon that rots；And discarded standing time is more long, putrid and deteriorated phenomenon is just more serious.In particular to
Summer, temperature is higher, rot also faster, at this time easily generates a large amount of leakage water and foul gas, grows mosquito
Worm makes a very bad impression to environmental sanitation.
（2）It is detrimental to health.The lipoid material of meat proteins and animality in kitchen garbage, mostlys come from
There is provided those livestock poultry of meat product, livestock easily occurs " same after direct food is without the kitchen garbage that is effectively treated
Class is mutually eaten " homologous contact scar, and cause the cross infection of epidemic disease between people and animals, be detrimental to health, and may promote certain
The propagation of fatal disease.Such as the infectious disease of large-scale outbreak in history.It says for another example, the bird flu propagated at present in many places
Deng cause, it may be possible to since infected cattle, sick sheep or the corpse of sick pig have been made into animal feed, so as to cause the extensive of disease
It infects.
（3）It spreads the disease.The outdoor storage of kitchen garbage can incur the amount reproduction of mosquitos and flies mouse worm, be that disease is spread
Main media.
（4）The lower sepage generated when being stacked in kitchen garbage enters sewage disposal system, can cause content of organics
Increase, so as to aggravate the burden of sewage treatment plant, increase operating cost.
At present, generally it is using aerobic compost or anaerobic digestion producing methane technique, idiographic flow to kitchen garbage：Unify back
After takeing in process for producing line, by sorting, magnetic separation, the inorganic matters such as chopsticks, polybag, metal are sifted out, remaining kitchen is given up
Gurry after broken, water-oil separating, dehydration, is sent into aerobic fermentation equipment, and treated, and kitchen castoff becomes industrial grease
And Nutrition Soil.Anaerobic digestion process, pre-treatment and aerobic compost pre-treatment are basically identical, and slurrying feeding is detested after carrying commercial grease
Oxygen tank carries out anaerobic fermentation, generates biogas, carries out biogas residue, biogas slurry separation, biogas residue conduct by centrifugation to mixture later
The raw material of organic fertilizer processed, biogas slurry are further processed qualified discharge.The existing biogas residue to after anaerobic digestion of kitchen wastes is generally adopted
Take plus flocculant precipitation add in caliche after, plate compression, be dehydrated to 55% hereinafter, landfill disposal.First, cause organic resources unrestrained
Take, second is that equipment investment is big, processing cost is high, third, landfill land occupation resource.
Domestic garbage burning electricity generation is the carry out high temperature incineration higher to fuel value after domestic waste collection（Also thoroughly
Having eliminated pathogenic organisms and corrosivity has confidential object）, in high temperature incineration（The smog of generation is by processing）The thermal energy of middle generation
High-temperature vapour is converted into, rotating turbine is pushed, produces electricl energy generator.
China is waste resources big country in the world.If China can substantially effectively generate electricity rubbish, can incite somebody to action
Coal is saved, " economy of resources " is extremely considerable.Although the garbage power of China is at the early-stage, have very promising prospects.China is abundant
Waste resources, there is great potential benefits.National urban is huge because of recrementitious loss every year, and is integrated profit
With can but create more benefits, the market space is huge.With each link technology such as garbage reclamation, processing, transport, comprehensive utilization
It continues to develop, technique increasingly section emulates the advanced, and waste incineration and generating electricity is the most effective minimizing of urban garbage disposal, resource
Change, innoxious mode.
Invention content
The present invention provides that a kind of profound processing intensity is big, resource product to solve shortcoming of the prior art
The kitchen castoff that wide in variety, resource product recycles effect good cooperates with treatment process with domestic garbage burning electricity generation, can
Processing cost is reduced, improves treatment effect.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：Kitchen castoff is sent out with consumer waste incineration
Electricity collaboration treatment process, including step in detail below,
（1）, kitchen garbage is collected；
（2）, foreign substances sorting is carried out to the kitchen garbage after collection, the combustible sorted out is transported to house refuse and burns
It burns power plant and carries out combustion power generation；
（3）, to foreign substances sort after material crush processing；
（4）, to after crushing material carry out homogenization；
（5）, the material after homogenization is carried out dehydrating, the liquid material that dehydration is obtained carries out temporary
It deposits, the solid material that dehydration obtains is transported to MSW Incineration Plant carries out combustion power generation or will be at dehydration
Obtained solid material is managed to be handled by aerobic fermentation process；
（6）, to liquid material carry out grease first separation processing, the moisture content that grease first separation is handled, which is collected into, to be detested
In aerobe fermentation tank, biogas residue, biogas slurry and biogas are generated after anaerobic fermentation, biogas residue, biogas slurry are detached.
The step（5）In aerobic fermentation process specifically include following steps,
（1）, first the solid material addition auxiliary material that obtains dehydration adjust moisture to 60%-67%, be then delivered to close
It closes and main fermentation is carried out in horizontal double-layer barrel aerobic fermentation tank, while into closed horizontal double-layer barrel aerobic fermentation tank
Gas supply, the temperature of main fermentation is 65 ° -75 °；
（2）, then solid material be transported in horizontal type airtight aerobiotic fermentation tank carry out secondary aerobic fermentation, while to close
It closes in horizontal aerobic fermentation tank and supplies, secondary aerobic fermentation temperature is 50 ° -60 °, after the completion of secondary aerobic fermentation, mixture
Moisture content is down to 30% hereinafter, producing organic fertilizer.
By the step（6）The oil content that middle grease first separation is handled carries out grease secondary separation, secondary point of grease
Oil content is obtained from after for making commercial grease, the dehydration that moisture content is transported in step (5) is obtained after grease secondary separation
Obtained liquid material carries out temporary process.
Landfill leachate in MSW Incineration Plant is transported to step（6）In anaerobic fermentation process.
Biogas residue is transported to MSW Incineration Plant progress combustion power generation process or is transported to step（5）In it is good
Aerobe fermentation process.
Methane purification is compressed into CNG sale or is transported to MSW Incineration Plant and carries out combustion power generation.
Biogas slurry is carried out handling to reach after municipal sewage pipe network is discharged into standard to be drained into municipal sewage pipe network.
The step（4）In to after crushing material carry out homogenization while, to after crushing material carry out
Heat treatment, the heat treatment are heated using the generating waste-heat of MSW Incineration Plant；The step（5）It is middle to incite somebody to action
While the liquid material that dehydration obtains carries out temporary, the liquid material that dehydration obtains is heated, institute
Heat treatment is stated to be heated using the generating waste-heat of MSW Incineration Plant.
Beneficial effects of the present invention：
Present invention process is advanced, reasonable, and treating capacity is big and resource product is more, quality is good, and profound processing intensity is big, resource
Change product recycling effect is good, and processing cost is relatively low, fully rationally utilizes MSW Incineration Plant and kitchen garbage fermentation
Collaboration processing advantage, the landfill leachate of MSW Incineration Plant can carry out anaerobic fermentation, using generating waste-heat plus
Hot kitchen garbage, can reduce processing cost, the combustible in kitchen garbage processing procedure and the biogas residue after fermentation can send to
MSW Incineration Plant carries out combustion power generation, produces resource product and electric energy with market value, so as to fulfill
The innoxious of garbage disposal, minimizing, recycling play an important role to improving increasingly serious resource and energy crisis.
Description of the drawings
Fig. 1 is the process flow chart of the present invention.
Specific embodiment
As shown in Figure 1, the kitchen castoff of the present invention cooperates with treatment process with domestic garbage burning electricity generation, including following tool
Body step,
（1）, kitchen garbage is collected；
（2）, foreign substances sorting is carried out to the kitchen garbage after collection, the combustible sorted out is transported to house refuse and burns
It burns power plant and carries out combustion power generation；
（3）, to foreign substances sort after material crush processing；
（4）, to after crushing material carry out homogenization；
（5）, the material after homogenization is carried out dehydrating, the liquid material that dehydration is obtained carries out temporary
It deposits, the solid material that dehydration obtains is transported to MSW Incineration Plant carries out combustion power generation or will be at dehydration
Obtained solid material is managed to be handled by aerobic fermentation process；
（6）, to liquid material carry out grease first separation processing, the moisture content that grease first separation is handled, which is collected into, to be detested
In aerobe fermentation tank, biogas residue, biogas slurry and biogas are generated after anaerobic fermentation, biogas residue, biogas slurry are detached.
The step（5）In aerobic fermentation process specifically include following steps,
（1）, first the solid material addition auxiliary material that obtains dehydration adjust moisture to 60%-67%, be then delivered to close
It closes and main fermentation is carried out in horizontal double-layer barrel aerobic fermentation tank, while into closed horizontal double-layer barrel aerobic fermentation tank
Gas supply, the temperature of main fermentation is 65 ° -75 °, and the auxiliary material selects sawdust, straw powder, mushroom residue etc.；
（2）, then solid material be transported in horizontal type airtight aerobiotic fermentation tank carry out secondary aerobic fermentation, while to close
It closes in horizontal aerobic fermentation tank and supplies, secondary aerobic fermentation temperature is 50 ° -60 °, after the completion of secondary aerobic fermentation, mixture
Moisture content is down to 30% hereinafter, producing organic fertilizer.
By the step（6）The oil content that middle grease first separation is handled carries out grease secondary separation, secondary point of grease
Oil content is obtained from after for making commercial grease, the dehydration that moisture content is transported in step (5) is obtained after grease secondary separation
Obtained liquid material carries out temporary process.
Landfill leachate in MSW Incineration Plant is transported to step（6）In anaerobic fermentation process.
Biogas residue is transported to MSW Incineration Plant progress combustion power generation process or is transported to step（5）In it is good
Aerobe fermentation process.
Methane purification is compressed into CNG sale or is transported to MSW Incineration Plant and carries out combustion power generation.
Biogas slurry is carried out handling to reach after municipal sewage pipe network is discharged into standard to be drained into municipal sewage pipe network.
The step（4）In to after crushing material carry out homogenization while, to after crushing material carry out
Heat treatment, the heat treatment are heated using the generating waste-heat of MSW Incineration Plant；The step（5）It is middle to incite somebody to action
While the liquid material that dehydration obtains carries out temporary, the liquid material that dehydration obtains is heated, institute
Heat treatment is stated to be heated using the generating waste-heat of MSW Incineration Plant.
Present invention process is advanced, reasonable, and treating capacity is big and resource product is more, quality is good, and profound processing intensity is big, resource
Change product recycling effect is good, and processing cost is relatively low, fully rationally utilizes MSW Incineration Plant and kitchen garbage fermentation
Collaboration processing advantage, the landfill leachate of MSW Incineration Plant can carry out anaerobic fermentation, using generating waste-heat plus
Hot kitchen garbage, can reduce processing cost, the combustible in kitchen garbage processing procedure and the biogas residue after fermentation can send to
MSW Incineration Plant carries out combustion power generation, produces resource product and electric energy with market value, so as to fulfill
The innoxious of garbage disposal, minimizing, recycling.
The above embodiments are only used to illustrate and not limit the technical solutions of the present invention, although with reference to above-described embodiment to this hair
It is bright to be described in detail, it will be understood by those of ordinary skill in the art that：Still can the present invention be modified or be waited
With replacing, without departing from the spirit or scope of the invention, or any substitutions, the power in the present invention should all be covered
In sharp claimed range.
Claims (8)
1. kitchen castoff cooperates with treatment process with domestic garbage burning electricity generation, it is characterised in that：Including step in detail below,
（1）, kitchen garbage is collected；
（2）, to after collection kitchen garbage carry out foreign substances sorting, the combustible sorted out be transported to consumer waste incineration hair
Power plant carries out combustion power generation；
（3）, to foreign substances sort after material crush processing；
（4）, to after crushing material carry out homogenization；
（5）, the material after homogenization is carried out dehydrating, the liquid material that dehydration obtains is kept in, will be de-
Solid material that water process obtains is transported to MSW Incineration Plant and carries out combustion power generation or obtain dehydration
Solid material is handled by aerobic fermentation process；
（6）, to liquid material carry out grease first separation processing, the moisture content that grease first separation is handled be collected into anaerobism hair
In fermentation tank, biogas residue, biogas slurry and biogas are generated after anaerobic fermentation, biogas residue, biogas slurry are detached.
2. kitchen castoff according to claim 1 cooperates with treatment process with domestic garbage burning electricity generation, it is characterised in that：
The step（5）In aerobic fermentation process specifically include following steps,
（1）, first the solid material addition auxiliary material that obtains dehydration adjust moisture to 60%-67%, be then delivered to closed sleeping
Main fermentation is carried out in formula double-layer barrel aerobic fermentation tank, while is supplied into closed horizontal double-layer barrel aerobic fermentation tank
Gas, the temperature of main fermentation is 65 ° -75 °；
（2）, then solid material be transported in horizontal type airtight aerobiotic fermentation tank carry out secondary aerobic fermentation, while to closed sleeping
Supply in formula aerobic fermentation tank, secondary aerobic fermentation temperature is 50 ° -60 °, after the completion of secondary aerobic fermentation, mixture it is aqueous
Rate is down to 30% hereinafter, producing organic fertilizer.
3. kitchen castoff according to claim 1 or 2 cooperates with treatment process with domestic garbage burning electricity generation, feature exists
In：By the step（6）The oil content that middle grease first separation is handled carries out grease secondary separation, after grease secondary separation
To oil content for making commercial grease, obtain what the dehydration that moisture content is transported in step (5) obtained after grease secondary separation
Liquid material carries out temporary process.
4. kitchen castoff according to claim 1 cooperates with treatment process with domestic garbage burning electricity generation, it is characterised in that：
Landfill leachate in MSW Incineration Plant is transported to step（6）In anaerobic fermentation process.
5. kitchen castoff according to claim 1 or 2 cooperates with treatment process with domestic garbage burning electricity generation, feature exists
In：Biogas residue is transported to MSW Incineration Plant progress combustion power generation process or is transported to step（5）In aerobic hair
Ferment process.
6. kitchen castoff according to claim 1 cooperates with treatment process with domestic garbage burning electricity generation, it is characterised in that：
Methane purification is compressed into CNG sale or is transported to MSW Incineration Plant and carries out combustion power generation.
7. kitchen castoff according to claim 1 cooperates with treatment process with domestic garbage burning electricity generation, it is characterised in that：
Biogas slurry is carried out handling to reach after municipal sewage pipe network is discharged into standard to be drained into municipal sewage pipe network.
8. kitchen castoff according to claim 1 cooperates with treatment process with domestic garbage burning electricity generation, it is characterised in that：
The step（4）In to after crushing material carry out homogenization while, the material after crushing is heated, it is described
Heat treatment is heated using the generating waste-heat of MSW Incineration Plant；The step（5）It is middle to obtain dehydration
Liquid material while carry out temporary, the liquid material that dehydration obtains is heated, the heat treatment profit
It is heated with the generating waste-heat of MSW Incineration Plant.
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| CN201610164888.1A CN105798050B (en) | 2016-03-22 | 2016-03-22 | Kitchen castoff cooperates with treatment process with domestic garbage burning electricity generation |
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| CN201610164888.1A CN105798050B (en) | 2016-03-22 | 2016-03-22 | Kitchen castoff cooperates with treatment process with domestic garbage burning electricity generation |
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| CN105798050A CN105798050A (en) | 2016-07-27 |
| CN105798050B true CN105798050B (en) | 2018-06-15 |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107661896A (en) * | 2016-07-29 | 2018-02-06 | 深圳华云生物科技有限公司 | A kind of Food waste treatment method and equipment |
| CN107671102B (en) * | 2016-08-01 | 2023-08-04 | 深圳市伟创力拓实业发展有限公司 | Kitchen waste treatment system and method |
| CN106269788A (en) * | 2016-08-16 | 2017-01-04 | 杭州新世纪能源环保工程股份有限公司 | One way of life garbage burning factory works in coordination with the method that full dose processes changing food waste |
| CN108841871A (en) * | 2018-07-03 | 2018-11-20 | 武汉天源环保股份有限公司 | A kind of kitchen garbage dry and wet classified resource processing method |
| CN110899292A (en) * | 2018-09-14 | 2020-03-24 | 南京凯盛开能环保能源有限公司 | Kitchen waste power generation and co-processing system and method |
| CN109812814A (en) * | 2019-03-18 | 2019-05-28 | 王英宾 | A kind of waste incineration improvement technique |
| CN111750357A (en) * | 2019-10-03 | 2020-10-09 | 上海康恒环境股份有限公司 | Vein industrial park system with waste incineration power plant as core |
| CN110848696A (en) * | 2019-12-02 | 2020-02-28 | 上海环境工程设计研究院有限公司 | Small kitchen waste oil extraction heating system and process |
| CN111059539A (en) * | 2019-12-31 | 2020-04-24 | 四川精丰机械有限公司 | Garbage treatment system and method |
| CN111632995A (en) * | 2020-05-29 | 2020-09-08 | 蔚复来(浙江)科技股份有限公司 | Resourceful treatment method and system for kitchen waste |
| CN112851050A (en) * | 2021-03-16 | 2021-05-28 | 四川嘉博文生物科技有限公司 | Method for treating dining table residues by applying aerobic and anaerobic cooperative treatment |
| CN113578919B (en) * | 2021-07-19 | 2022-09-09 | 上海大学 | Method for improving dehydration performance of kitchen waste anaerobic digestion biogas residues |
| CN115301672A (en) * | 2022-06-30 | 2022-11-08 | 广西博世科环保科技股份有限公司 | Comprehensive treatment method for kitchen garbage |
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