CN102371266B - Resource utilization method of kitchen waste - Google Patents
Resource utilization method of kitchen waste Download PDFInfo
- Publication number
- CN102371266B CN102371266B CN201010263855.5A CN201010263855A CN102371266B CN 102371266 B CN102371266 B CN 102371266B CN 201010263855 A CN201010263855 A CN 201010263855A CN 102371266 B CN102371266 B CN 102371266B
- Authority
- CN
- China
- Prior art keywords
- waste
- changing food
- food waste
- oil
- resource utilization
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The invention provides a resource utilization method of kitchen waste. The resource utilization method comprises the following steps: a. carrying out high-temperature instantaneous sterilization on the collected kitchen waste and then storing the sterilized kitchen waste; b. removing free water and oil out of the kitchen waste; c. carrying out oil-water separation and exchange reaction on a liquid phase so as to prepare biodiesel, and then carrying out waste water treatment; d. carrying out magnetic separation and further dewatering; e. processing with a catalyst; f. transforming combustion heat energy; and g. removing colloid out of the liquid phase through oil-water separation so that the colloid can be taken as fuel oil, and then carrying out waste water treatment on an aqueous phase. The resource utilization method has the beneficial effects that the kitchen waste is fully recycled so as to solve the problems of waste water, waste gas and the like; the effects of high efficiency, energy conservation, low consumption and environmental protection are realized; wastes are changed into valuables; and the treatment cost is low, thus achieving the purpose of circular economy.
Description
Technical field
The present invention relates to a kind of resource recycle and reuse method, be specifically related to a kind of resource utilization method of kitchen waste.
Background technology
China's changing food waste is processed at present several method and pros and cons: 1) landfill is the topmost processing mode of China's domestic waste, the more than 70% of Disposal of Domestic amount, especially to not recyclable rubbish, landfill is desirable, is also final processing mode.Landfill is the principle based on microbiological anaerobic fermentation, rubbish is slowly transformed and reaches innoxious object.Landfill divides 2 classes: 1. simple and easy landfill, claims again traditional landfill; 2. sanitary landfills.Although it is large that landfill disposal rubbish has treating capacity, operational administrative is simple, and investment operating cost is lower, the advantages such as strong adaptability, and because of the shortcoming of landfill yard at aspects such as addressing, design, management, a large amount of landfills cause the serious waste of surrounding city land resource; Landfill yard also produces a large amount of pernicious gas expenses; Landfill percolate is seriously polluted.2) compost is a kind of machine garbage as resource processing mode that common are, and it is simple, practical that kitchen waste compost processing has processing method, is beneficial to and supplements soil with organic matter and trace element, realizes the advantages such as resource recycling; Shortcoming is that floor space is large, long processing period, the sewage producing in composting process and foul smell can cause secondary pollution to surrounding enviroment, higher salinity, fat content reduced the quality of compost simultaneously, especially high salinity has suppressed the growth of plant, and long-term use also will cause the salinization of soil of soil.3), for security consideration, many countries forbid directly using hogwash as animal feed, the fodder processing mode of changing food waste so people begin one's study.This mode is processed the advantages such as changing food waste has handling safety, cost is low, floor space is little, the production of fodder cycle is short; Shortcoming is rubbish in time must be received and be transported to appointed place, and equipment is complicated, once throws people huge, and the waste deposit time is short, to avoid it to rot.4) to process be that metabolic activity by microorganism decomposes changing food waste and transforms, production microbial protein feed to biofermentation.The advantage that biofermentation is processed is that equipment investment is less, and floor space is little, and energy consumption is low; Shortcoming is that growth metabolism needs certain hour, and the production cycle is longer, and part bacterial classification need to be cultivated domestication, and processing must be in time.
Summary of the invention
The object of the invention is to overcome above weak point, resource utilization method of kitchen waste is provided, the thinking of the method technique of the present invention is without sorting by the rubbish of collecting, the heavy caliber enter material way adopting, make material not of uniform size can mix pan feeding, through processing, be converted into charcoal ash, oil, fuel gas, liquid phase, thus reached comprehensive utilization, solved the problems such as waste water, waste gas, reach efficient, energy-conservation, low consumption, environmental protection, realize the target of recycling economy.
The object of the invention is to be realized by following technical scheme, developed a kind of resource utilization method of kitchen waste, the technical solution adopted in the present invention comprises the steps:
A. by changing food waste high-temperature short-time sterilization at 121 ℃ of collecting, the changing food waste after sterilizing is preserved under-0.01--0.02mp condition;
B. the changing food waste after step a being processed, under 100 ℃ of conditions, is taken off Free water and the grease in changing food waste by the mode of mechanical presses;
C. the liquid phase of step b, through oil water separator, is prepared biodiesel by esterification and ester exchange reaction after the exquisite processing of oil phase, and water enters wastewater treatment;
D. the changing food waste of step b after processing, through magnetic separation, removed metal impurities, is ground into enter horizontal rotary drying oven after uniform particle and further dewater, and under negative pressure 0.08-0.1Mp cryogenic conditions, carries out, and reaches moisture below 20%;
E. the changing food waste after steps d processing enters in rotary carbide furnace, adds the activated alumina of 1-2 ‰ to make catalyst, is warming up to 300-450 ℃, keeps 10-30min;
F. the waste gas that step e produces is delivered to retort burning Indoor Combustion as the heat energy supply of charing through reclaiming;
G. the liquid phase that step e produces is that the lipoid material high-temperature catalytic cracking in changing food waste plastic products and part changing food waste produces water combination in oil phase and changing food waste, liquid phase is through oily-water seperating equipment, oil phase by attapulgite deviate from wherein colloid, after activated decoloration, as oil product substitute, make fuel oil again and use, water enters the wastewater treatment stage.
In described resource utilization method of kitchen waste, step e carbide powder is broken into 100-200 object fine powder.
In described resource utilization method of kitchen waste, in steps d, adopt negative pressure low temperature drying dehydration.
In described resource utilization method of kitchen waste in step e, the biodiesel that the thermal source of retort adopts the waste oil of changing food waste pretreatment stage to prepare;
In described resource utilization method of kitchen waste Chinese meal kitchen garbage processing procedure, product is charcoal ash than row pass: 10-20%, oil: 3-5%, fuel gas: 2-4%, liquid phase 70-85%.
Oil-containing 5-20% in liquid product in changing food waste processing procedure described in described resource utilization method of kitchen waste.
Beneficial effect of the present invention: the present invention processes changing food waste and fully recycles, has solved the problems such as waste water, waste gas, reaches efficient, energy-conservation, low consumption, environmental protection, goes bad as precious processing cost is low, realizes the target of recycling economy.
Specific embodiment
Resource utilization method of kitchen waste construction procedure of the present invention is:
A. by changing food waste high-temperature short-time sterilization at 121 ℃ of collecting, the changing food waste after sterilizing is preserved under-0.01--0.02mp condition;
B. the changing food waste after step a being processed, under 100 ℃ of conditions, is taken off Free water and the grease in changing food waste by the mode of mechanical presses;
C. the liquid phase of step b, through oil water separator, is prepared biodiesel by esterification and ester exchange reaction after the exquisite processing of oil phase, and water enters wastewater treatment;
D. the changing food waste of step b after processing, through magnetic separation, removed metal impurities, is ground into enter horizontal rotary drying oven after uniform particle and further dewater, and under negative pressure 0.08-0.1Mp cryogenic conditions, carries out, and reaches moisture below 20%;
E. the changing food waste after steps d processing enters in rotary carbide furnace, adds the activated alumina of 1-2 ‰ to make catalyst, is warming up to 300-450 ℃, keeps 10-30min;
F. the waste gas that step e produces is delivered to retort burning Indoor Combustion as the heat energy supply of charing through reclaiming;
G. the liquid phase that step e produces is that the lipoid material high-temperature catalytic cracking in changing food waste plastic products and part changing food waste produces water combination in oil phase and changing food waste, liquid phase is through oily-water seperating equipment, oil phase by attapulgite deviate from wherein colloid, after activated decoloration, as oil product substitute, make fuel oil again and use, water enters the wastewater treatment stage.
In described resource utilization method of kitchen waste, step e carbide powder is broken into 100-200 object fine powder.
In described resource utilization method of kitchen waste, in steps d, adopt negative pressure low temperature drying dehydration.
In described resource utilization method of kitchen waste in step e, the biodiesel that the thermal source of retort adopts the waste oil of changing food waste pretreatment stage to prepare;
In described resource utilization method of kitchen waste Chinese meal kitchen garbage processing procedure, product is charcoal ash than row pass: 10-20%, oil: 3-5%, fuel gas: 2-4%, liquid phase 70-85%.
Oil-containing 5-20% in liquid product in changing food waste processing procedure described in described resource utilization method of kitchen waste.
Now with regard to the inventive method, make following explanation:
1. first, changing food waste is transported to the later present row high-temperature sterilization of company, kills microorganism wherein, prevents that changing food waste from continuing putrid and deteriorated.Reduce content of microorganisms in waste water simultaneously, reduce BOD value.Under 100 ℃ of conditions, by the mode of mechanical presses, take off most Free water and the grease in changing food waste again.Liquid phase, through oil water separator, is prepared biodiesel by esterification and ester exchange reaction after the exquisite processing of oil phase.Water enters wastewater treatment.
2. the changing food waste of draining being crossed carries out magnetic separation and removes bulk metal wherein.
3. the changing food waste after magnetic separation being pulverized is poured special-purpose Rotary drying stove into and is further dewatered, and under negative pressure 0.08-0.1Mp cryogenic conditions, carries out, and reaches moisture below 20%.Its equipment has a kind of heavy caliber feeding mouth, and bore is greater than 150mm, and this equipment has filter gas port and the waste gas recovering device that can make moisture evaporative emissions; This equipment also possesses condensate drain.
4. after dry, Russia's changing food waste enters in rotary carbide furnace, adds the activated alumina of 1-2 ‰ to make catalyst, is warming up to 300-450 ℃, keeps 10-30min, and the waste gas of generation rekindles the heat energy supply as charing through reclaiming to deliver in retort combustion chamber.The liquid phase producing is the oil phase of the lipoid material high-temperature catalytic cracking generation in changing food waste plastic products and part changing food waste and the combination water in changing food waste.Liquid phase is through oily-water seperating equipment, oil phase by attapulgite deviate from wherein colloid, then after activated decoloration, as oil product substitute, make fuel oil and use, water enters the wastewater treatment stage.
Waste gas emission standard in the present invention is up to state standards, and by checking and accepting, toxic emission meets national requirements for environmental protection.
In the present invention, biodiesel is closed application inventor's company standard, the Laixi City Enterprise Product Standards standard No. Q/02FRS001-2007-01 that puts on record.
In the present invention active carbon meet national active carbon standard be used as in processing about urban water supply and water for industrial use adsorbent too or the regulation of compacting active carbon.
Those of ordinary skill in the art can understand, and in protection scope of the present invention, for above-described embodiment, modifies, and it is all possible adding and replacing, and it does not all exceed protection scope of the present invention.
Claims (4)
1. a resource utilization method of kitchen waste, comprises the steps:
A. by changing food waste high-temperature short-time sterilization at 121 ℃ of collecting, the changing food waste after sterilizing is preserved under-0.01--0.02mp condition;
B. the changing food waste after step a being processed, under 100 ℃ of conditions, is taken off Free water and the grease in changing food waste by the mode of mechanical presses;
C. the liquid phase of step b, through oil water separator, is prepared biodiesel by esterification and ester exchange reaction after the exquisite processing of oil phase, and water enters wastewater treatment;
D. the changing food waste of step b after processing, through magnetic separation, removed metal impurities, is ground into enter horizontal rotary drying oven after uniform particle and further dewater, and under negative pressure 0.08-0.1Mp cryogenic conditions, carries out, and reaches moisture below 20%;
E. the changing food waste after steps d processing enters in rotary carbide furnace, adds the activated alumina of 1-2 ‰ to make catalyst, is warming up to 300-450 ℃, keeps 10-30min;
F. the waste gas that step e produces is delivered to retort burning Indoor Combustion as the heat energy supply of charing through reclaiming;
G. the liquid phase that step e produces is that the lipoid material high-temperature catalytic cracking in changing food waste plastic products and part changing food waste produces water combination in oil phase and changing food waste, liquid phase is through oily-water seperating equipment, oil phase by attapulgite deviate from wherein colloid, after activated decoloration, as oil product substitute, make fuel oil again and use, water enters the wastewater treatment stage.
2. resource utilization method of kitchen waste as claimed in claim 1, is characterized in that: step e carbide powder is broken into 100-200 object fine powder.
3. resource utilization method of kitchen waste as claimed in claim 1, is characterized in that: in steps d, adopt negative pressure low temperature drying dehydration.
4. resource utilization method of kitchen waste as claimed in claim 1, is characterized in that: in step e, and the biodiesel that the thermal source of retort adopts the waste oil of changing food waste pretreatment stage to prepare.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010263855.5A CN102371266B (en) | 2010-08-23 | 2010-08-23 | Resource utilization method of kitchen waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010263855.5A CN102371266B (en) | 2010-08-23 | 2010-08-23 | Resource utilization method of kitchen waste |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102371266A CN102371266A (en) | 2012-03-14 |
| CN102371266B true CN102371266B (en) | 2014-08-13 |
Family
ID=45790814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010263855.5A Expired - Fee Related CN102371266B (en) | 2010-08-23 | 2010-08-23 | Resource utilization method of kitchen waste |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102371266B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728603B (en) * | 2012-06-13 | 2014-01-22 | 沈阳金利洁科技有限公司 | Organic matter carbonization catalysis processing technology |
| CN104178185A (en) * | 2014-08-19 | 2014-12-03 | 广东天源环境科技有限公司 | Kitchen waste pyrolysis treatment technique |
| CN106180122B (en) * | 2016-06-28 | 2018-07-24 | 江苏工博环保能源研究院有限公司 | Kitchen garbage information classification approach |
| CN107671110A (en) * | 2017-11-02 | 2018-02-09 | 烟台智本知识产权运营管理有限公司 | A kind of new method of kitchen garbage recycling |
| CN107905772A (en) * | 2017-11-02 | 2018-04-13 | 烟台智本知识产权运营管理有限公司 | A kind of method that well yield is improved using kitchen garbage |
| CN107587866A (en) * | 2017-11-02 | 2018-01-16 | 烟台智本知识产权运营管理有限公司 | A kind of method that discarded oil reservoir yield is improved using kitchen garbage |
| CN107855348A (en) * | 2017-11-02 | 2018-03-30 | 烟台智本知识产权运营管理有限公司 | A kind of method that changing food waste into resources utilizes |
| CN109665643A (en) * | 2019-01-08 | 2019-04-23 | 陈专 | A kind of device systems and method of kitchen garbage processing and resource regeneration |
| CN111069236A (en) * | 2019-12-20 | 2020-04-28 | 上海耀嵘环保科技有限公司 | Advanced treatment process for kitchen waste |
| CN111229197B (en) * | 2020-03-26 | 2022-12-13 | 广州派安环保科技有限公司 | Catalyst for kitchen waste and kitchen waste treatment method |
| CN111676070B (en) * | 2020-06-19 | 2021-03-30 | 西北大学 | Method for preparing biodiesel from kitchen waste |
| CN112845504B (en) * | 2020-12-24 | 2022-06-21 | 南京绿帝环保能源科技有限公司 | Household garbage resource utilization treatment process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003034588A (en) * | 2001-07-24 | 2003-02-07 | Nishi Nippon Ecology Kk | Method and system for circulation-chain-type recycling of food refuse |
| JP2004181339A (en) * | 2002-12-03 | 2004-07-02 | Mitsubishi Heavy Ind Ltd | Self-feeding method of hypochlorous acid agent in organic waste treatment system and facility for the same |
| CN1923386A (en) * | 2006-09-25 | 2007-03-07 | 上海餐余垃圾处理技术有限公司 | Process for utilization of kitchen refuse as resource |
| CN101130194A (en) * | 2007-09-14 | 2008-02-27 | 苏州市洁净废植物油回收有限公司 | Method for comprehensive processing garbage of food and recycling to use |
-
2010
- 2010-08-23 CN CN201010263855.5A patent/CN102371266B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003034588A (en) * | 2001-07-24 | 2003-02-07 | Nishi Nippon Ecology Kk | Method and system for circulation-chain-type recycling of food refuse |
| JP2004181339A (en) * | 2002-12-03 | 2004-07-02 | Mitsubishi Heavy Ind Ltd | Self-feeding method of hypochlorous acid agent in organic waste treatment system and facility for the same |
| CN1923386A (en) * | 2006-09-25 | 2007-03-07 | 上海餐余垃圾处理技术有限公司 | Process for utilization of kitchen refuse as resource |
| CN101130194A (en) * | 2007-09-14 | 2008-02-27 | 苏州市洁净废植物油回收有限公司 | Method for comprehensive processing garbage of food and recycling to use |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102371266A (en) | 2012-03-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102371266B (en) | Resource utilization method of kitchen waste | |
| CN105855275B (en) | A kind of processing method of sludge and kitchen garbage | |
| CN110240386B (en) | Straw and sludge cooperative treatment device and method | |
| CN102921704B (en) | The method for innocent treatment of changing food waste | |
| CN106746468B (en) | Sludge treatment system and treatment process | |
| CN110105095A (en) | A kind of innoxious and recycling processing method of kitchen garbage | |
| CN102500604B (en) | Household solid garbage recycling and renewable biological carbon circulating technology | |
| CN103240264B (en) | Have the low emission solid organic castoff treatment system of biogas and Activated Carbon Production concurrently | |
| CN205687770U (en) | A kind of mud and the processing means of changing food waste | |
| CN102151683A (en) | Damp and heat fermentation comprehensive harmless and resource processing system for kitchen waste | |
| CN206033595U (en) | High -efficient environmental protection kitchen waste treatment equipment | |
| CN103570381B (en) | Remaining gas fermentation processing method and the system thereof held concurrently in kitchen | |
| CN104646390A (en) | High-efficiency low-energy-consumption kitchen garbage comprehensive treatment method | |
| CN107971324A (en) | A kind of method and its device of anaerobic fermentation of kitchen waste biogas residue minimizing recycling | |
| CN210419701U (en) | Straw and sludge coprocessing device | |
| CN102172602A (en) | Novel biological treatment method for kitchen garbage | |
| CN105268724A (en) | Dead livestock resource utilization method and device | |
| CN111842405A (en) | Kitchen waste treatment method | |
| CN115069739A (en) | Bidirectional reinforced multi-source cooperative full-amount recycling treatment system and technology for kitchen waste | |
| CN205165330U (en) | Birds that dies of illness poultry treatment facility | |
| CN110684647A (en) | System and method for realizing biogas residue drying heat balance by virtue of synergistic digestion of kitchen waste, kitchen waste and municipal sludge | |
| CN201634550U (en) | Comprehensive treatment device of biochemical sludge and waste grease | |
| CN211247719U (en) | Processing system for various solid wastes in circulating industrial park | |
| CN104418301B (en) | Utilize the method that domestic waste and agricultural wastes prepare hydrogen and nutritional solution | |
| CN109467299A (en) | A method of improving methane factor of created gase in excess sludge anaerobic digestion |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| DD01 | Delivery of document by public notice |
Addressee: Zheng Pingan Document name: Notification of Passing Examination on Formalities |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20190823 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |