CN113213983A - Desalination fermentation composting technology for kitchen waste - Google Patents
Desalination fermentation composting technology for kitchen waste Download PDFInfo
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- CN113213983A CN113213983A CN202110498364.7A CN202110498364A CN113213983A CN 113213983 A CN113213983 A CN 113213983A CN 202110498364 A CN202110498364 A CN 202110498364A CN 113213983 A CN113213983 A CN 113213983A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F9/00—Fertilisers from household or town refuse
- C05F9/04—Biological compost
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D9/00—Other inorganic fertilisers
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
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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
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Soil Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Processing Of Solid Wastes (AREA)
- Fertilizers (AREA)
Abstract
The utility model provides a kitchen garbage desalination fermentation compost technique, adopts the continuous type to add organic waste, utilizes the extrusion crushing effect cooperation washing of double helix transport, with the kitchen garbage desalination back, solid-state material ferments, guarantees that the compost process is high-efficient, stable, continuous, realizes that the kitchen garbage efficient subtracts quantization, innoxious and resourceization from this, effectively gets rid of the influence of salinity to the resourceization product. The technology has the advantages of simple and convenient operation, simple flow, high automation degree, small occupied area and the like, and the desalination treatment is carried out by utilizing the circulating water, so that the utilization efficiency of water resources is improved, and the resource value of the output is greatly improved; the application of the technology can effectively reduce the pollution of the kitchen waste to the environment and realize the resource utilization of the waste.
Description
Technical Field
The invention relates to an aerobic fermentation composting method for kitchen waste, in particular to a desalination fermentation composting technology for kitchen waste.
Background
The kitchen waste, commonly known as swill, also known as swill and hogwash, is a domestic waste formed in the process of domestic consumption of residents, mainly comprises rice and flour food residues, vegetables, animal and vegetable oil, meat and bones and the like, and comprises starch, cellulose, protein, lipids and inorganic salt in chemical composition, has the characteristics of rich organic matter content, high water content and easy rotting, and has the characteristics of severe influence on environmental sanitation due to properties and smell, and is easy to grow harmful substances such as pathogenic microorganisms and mycotoxin. Because of improper disposal methods, it has become a potential source of danger affecting food safety and ecological safety.
The existing kitchen waste treatment and disposal methods comprise methods of landfill, incineration, composting and the like. Land resources are occupied by landfill; because the water content in the domestic garbage is higher, the potential safety hazard of the instability in the burning process is high. The compost is degraded and converted by microorganisms, however, the existence of salt limits the fermentation efficiency of the microorganisms on one hand, and seriously hinders the soil application in compost products on the other hand. Therefore, the invention develops and designs a kitchen waste desalting fermentation composting technology, the method firstly treats and desalts raw materials, so that the subsequent microbial fermentation composting effect is effectively improved, meanwhile, no salt pollution exists in the product, the conversion and decomposition of the kitchen waste are realized, and the method has the characteristics of rapidness, high efficiency and the like, so that the harmlessness, reduction and recycling of the kitchen waste are really realized.
Disclosure of Invention
The invention aims to solve the existing problems and provides a kitchen waste desalting, fermenting and composting technology, compared with the prior art, the processing technology method has the advantages of high desalting efficiency, simplicity, easy operation, high resource rate of the output, no secondary pollution in the fermentation process, effective energy consumption saving and treatment cost reduction.
The technical scheme of the invention is as follows:
the utility model provides a kitchen garbage desalination fermentation compost technique, adopts continuous type to add organic waste, utilizes the crushing effect cooperation washing of extrusion of double helix transport, with the kitchen garbage desalination after, solid-state material ferments, guarantees that the compost process is high-efficient, stable, continuous, realizes that the kitchen garbage efficient subtracts quantization, innoxious and resourceization from this, effectively gets rid of the influence of salinity to the resourceization product, the step as follows:
1) mixing the kitchen waste with water according to the proportion of 10 (1-5), extruding and crushing the kitchen waste by using a double-helix conveying device, and continuously feeding the kitchen waste into an aerobic composting reaction device after dehydration;
2) after the materials enter the aerobic reaction device and stay in the raw material adjusting area for a period of time, further dehydrating under the continuous extrusion effect, and simultaneously intermittently entering the reaction area;
3) controlling the fermentation temperature to be 50-70 ℃ and the retention time to be 6-8 hours;
4) the generated gas is directly discharged after being purified by a deodorization device;
5) mixing the solid product with biochar according to the proportion of 10 (0.1-0.8) to obtain a soil improvement matrix;
6) the produced salt-containing wastewater is purified and then recycled.
The kitchen waste is one or more of kitchen waste, fruit and vegetable waste and the like after a dining room, a catering enterprise and a resident waste are classified.
After the reaction product is mixed with biochar, the organic matter content is 75-90%.
The invention has the advantages and beneficial effects that:
the technology has the advantages of simple and convenient operation, simple flow, high automation degree, small occupied area and the like, and the desalination treatment is carried out by utilizing the circulating water, so that the utilization efficiency of water resources is improved, and the resource value of the output is greatly improved; the application of the technology can effectively reduce the pollution of the kitchen waste to the environment, simultaneously realize the resource utilization of the waste, and has remarkable environmental, social and economic benefits.
Detailed Description
The present invention is further described in the following examples, but the technical content described in the examples is illustrative and not restrictive, and the scope of the present invention should not be limited thereby.
Example 1:
the utility model provides a kitchen garbage desalination fermentation compost technique, adopts continuous type to add organic waste, utilizes the crushing effect cooperation washing of extrusion of double helix transport, with the kitchen garbage desalination after, solid-state material ferments, guarantees that the compost process is high-efficient, stable, continuous, realizes that the kitchen garbage efficient subtracts quantization, innoxious and resourceization from this, effectively gets rid of the influence of salinity to the resourceization product, the step as follows:
1) mixing kitchen waste consisting of a dining room and a catering enterprise with water according to a ratio of 10:2, extruding and crushing the kitchen waste by using a double-helix conveying device, and continuously feeding the kitchen waste into an aerobic composting reaction device after dehydration;
2) after the materials enter the aerobic reaction device and stay in the raw material adjusting area for a period of time, further dehydrating under the continuous extrusion effect, and simultaneously intermittently entering the reaction area;
3) controlling the fermentation temperature to be 55 ℃ and the retention time to be 6.5 hours;
4) the generated gas is directly discharged after being purified by a deodorization device;
5) mixing the solid product with biochar according to a ratio of 10:0.6 to obtain a soil improvement matrix, wherein the content of organic matters is 87%;
6) the produced salt-containing wastewater is purified and then recycled.
The technology has the advantages of simple and convenient operation, simple flow, high automation degree, small occupied area and the like, and the desalination treatment is carried out by utilizing the circulating water, so that the utilization efficiency of water resources is improved, and the resource value of the output is greatly improved; the application of the technology can effectively reduce the pollution of the kitchen waste to the environment and realize the resource utilization of the waste.
Example 2:
the utility model provides a kitchen garbage desalination fermentation compost technique, adopts continuous type to add organic waste, utilizes the crushing effect cooperation washing of extrusion of double helix transport, with the kitchen garbage desalination after, solid-state material ferments, guarantees that the compost process is high-efficient, stable, continuous, realizes that the kitchen garbage efficient subtracts quantization, innoxious and resourceization from this, effectively gets rid of the influence of salinity to the resourceization product, the step as follows:
1) mixing kitchen waste consisting of kitchen waste and fruit and vegetable waste classified by dining halls, catering enterprises and residential waste with water according to a ratio of 10:4, extruding and crushing the kitchen waste by using a double-screw conveying device, and continuously feeding the kitchen waste into an aerobic composting reaction device after dehydration;
2) after the materials enter the aerobic reaction device and stay in the raw material adjusting area for a period of time, further dehydrating under the continuous extrusion effect, and simultaneously intermittently entering the reaction area;
3) controlling the fermentation temperature to be 70 ℃ and the retention time to be 6 hours;
4) the generated gas is directly discharged after being purified by a deodorization device;
5) mixing the solid product with biochar according to a ratio of 10:0.8 to obtain a soil improvement matrix, wherein the content of organic matters is 80%;
6) the produced salt-containing wastewater is purified and then recycled.
The technology has the advantages of simple and convenient operation, simple flow, high automation degree, small occupied area and the like, and the desalination treatment is carried out by utilizing the circulating water, so that the utilization efficiency of water resources is improved, and the resource value of the output is greatly improved; the application of the technology can effectively reduce the pollution of the kitchen waste to the environment and realize the resource utilization of the waste.
Example 3:
the utility model provides a kitchen garbage desalination fermentation compost technique, adopts continuous type to add organic waste, utilizes the crushing effect cooperation washing of extrusion of double helix transport, with the kitchen garbage desalination after, solid-state material ferments, guarantees that the compost process is high-efficient, stable, continuous, realizes that the kitchen garbage efficient subtracts quantization, innoxious and resourceization from this, effectively gets rid of the influence of salinity to the resourceization product, the step as follows:
1) mixing kitchen waste consisting of kitchen waste classified by catering enterprises and resident waste with water according to a ratio of 10:3, extruding and crushing the kitchen waste by using a double-screw conveying device, and continuously feeding the kitchen waste into an aerobic composting reaction device after dehydration;
2) after the materials enter the aerobic reaction device and stay in the raw material adjusting area for a period of time, further dehydrating under the continuous extrusion effect, and simultaneously intermittently entering the reaction area;
3) controlling the fermentation temperature to be 60 ℃ and the retention time to be 7 hours;
4) the generated gas is directly discharged after being purified by a deodorization device;
5) mixing the solid product with biochar according to a ratio of 10:0.6 to obtain a soil improvement matrix, wherein the content of organic matters is 87%;
6) the produced salt-containing wastewater is purified and then recycled.
The technology has the advantages of simple and convenient operation, simple flow, high automation degree, small occupied area and the like, and the desalination treatment is carried out by utilizing the circulating water, so that the utilization efficiency of water resources is improved, and the resource value of the output is greatly improved; the application of the technology can effectively reduce the pollution of the kitchen waste to the environment and realize the resource utilization of the waste.
Claims (3)
1. The utility model provides a kitchen garbage desalination fermentation compost technique, adopts continuous type to add organic waste, utilizes the crushing effect cooperation washing of extrusion of double helix transport, with the kitchen garbage desalination after, solid-state material ferments, guarantees that the compost process is high-efficient, stable, continuous, realizes that the kitchen garbage efficient subtracts quantization, innoxious and resourceization from this, effectively gets rid of the influence of salinity to the resourceization product, the step as follows:
1) mixing the kitchen waste with water according to the proportion of 10 (1-5), extruding and crushing the kitchen waste by using a double-helix conveying device, and continuously feeding the kitchen waste into an aerobic composting reaction device after dehydration;
2) after the materials enter the aerobic reaction device and stay in the raw material adjusting area for a period of time, further dehydrating under the continuous extrusion effect, and simultaneously intermittently entering the reaction area;
3) controlling the fermentation temperature to be 50-70 ℃ and the retention time to be 6-8 hours;
4) the generated gas is directly discharged after being purified by a deodorization device;
5) mixing the solid product with biochar according to the proportion of 10 (0.1-0.8) to obtain a soil improvement matrix;
6) the produced salt-containing wastewater is purified and then recycled.
2. The desalination, fermentation and composting technology for kitchen waste according to claim 1, which is characterized in that: the kitchen waste is one or more of kitchen waste, fruit and vegetable waste and the like after a dining room, a catering enterprise and a resident waste are classified.
3. The desalination, fermentation and composting technology for kitchen waste according to claim 1, which is characterized in that: after the reaction product is mixed with biochar, the organic matter content is 75-90%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110498364.7A CN113213983A (en) | 2021-05-08 | 2021-05-08 | Desalination fermentation composting technology for kitchen waste |
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| CN202110498364.7A CN113213983A (en) | 2021-05-08 | 2021-05-08 | Desalination fermentation composting technology for kitchen waste |
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| CN113213983A true CN113213983A (en) | 2021-08-06 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114178294A (en) * | 2021-12-06 | 2022-03-15 | 南开大学 | Full-resource utilization method of kitchen garbage |
| CN115010520A (en) * | 2022-06-27 | 2022-09-06 | 华沃德源环境技术(济南)有限公司 | Aerobic composting method for kitchen waste |
| CN115971219A (en) * | 2022-12-22 | 2023-04-18 | 南开大学 | Full recycling method for earthworm metabolism kitchen waste |
Citations (3)
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|---|---|---|---|---|
| CN101607836A (en) * | 2009-06-30 | 2009-12-23 | 深圳职业技术学院 | A kind of aerobic composting method of food residue |
| CN102161553A (en) * | 2011-03-04 | 2011-08-24 | 广东工业大学 | Method for treating wastewater generated in preparation of biogas from kitchen waste |
| CN104030738A (en) * | 2013-03-05 | 2014-09-10 | 习建华 | Resource-based and harmless treatment method for kitchen waste |
-
2021
- 2021-05-08 CN CN202110498364.7A patent/CN113213983A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101607836A (en) * | 2009-06-30 | 2009-12-23 | 深圳职业技术学院 | A kind of aerobic composting method of food residue |
| CN102161553A (en) * | 2011-03-04 | 2011-08-24 | 广东工业大学 | Method for treating wastewater generated in preparation of biogas from kitchen waste |
| CN104030738A (en) * | 2013-03-05 | 2014-09-10 | 习建华 | Resource-based and harmless treatment method for kitchen waste |
Non-Patent Citations (4)
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| 孔令彬 等: "《宁夏环境保护文集》", 31 January 2015 * |
| 张永杰 等: "《钢铁低碳高能效共性难题技术研发与应用》", 31 August 2019 * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114178294A (en) * | 2021-12-06 | 2022-03-15 | 南开大学 | Full-resource utilization method of kitchen garbage |
| CN115010520A (en) * | 2022-06-27 | 2022-09-06 | 华沃德源环境技术(济南)有限公司 | Aerobic composting method for kitchen waste |
| CN115971219A (en) * | 2022-12-22 | 2023-04-18 | 南开大学 | Full recycling method for earthworm metabolism kitchen waste |
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