CN111842419B - Kitchen waste treatment method - Google Patents
Kitchen waste treatment method Download PDFInfo
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- CN111842419B CN111842419B CN202010663199.1A CN202010663199A CN111842419B CN 111842419 B CN111842419 B CN 111842419B CN 202010663199 A CN202010663199 A CN 202010663199A CN 111842419 B CN111842419 B CN 111842419B
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to the technical field of kitchen waste treatment, and discloses a kitchen waste treatment method, which comprises the following steps: A. collecting and treating: 1, putting the kitchen waste into a designated collection container, wherein the container has the functions of weighing and data recording, and the weight data of the kitchen waste is obtained by weighing, converted into integral data and fed back to a user; 2, performing odor control treatment on the kitchen waste by adopting a micronutrient technology, and adding a micronutrient additive into the kitchen waste. The invention combines the biotechnology and the intelligent technology, encourages people to actively participate in classified collection of kitchen waste through points or cash exchange, improves the environmental awareness of the whole people, popularizes the education of environmental protection knowledge, treats the kitchen waste through the biotechnology, realizes the decomposition and conversion of the kitchen waste through the degradation of microorganisms, solves the problem of peculiar smell, and finally produces carbon dioxide, water and other harmless substances.
Description
Technical Field
The invention relates to the field of kitchen waste treatment, in particular to a kitchen waste treatment method.
Background
The kitchen waste is not limited to residual soup and leftovers, and is food waste and food residues from families, schools, institutional public canteens and the catering industry, commonly called swill, which is complex in composition and is a mixture of various substances such as oil, water, pericarp, vegetables, rice flour, fish, meat, bone and the like. The current treatment methods of kitchen garbage respectively comprise:
1. a large amount of greenhouse gases, carbon dioxide and harmful gases such as dioxin and the like are generated by incineration treatment.
2. In the landfill treatment, leakage liquid is generated to pollute soil and underground water.
3. Resource utilization, classify the rubbish that produces in the life, after collecting kitchen waste, transport to the unit of qualification through the special car and handle, marsh gas power generation and bio-compost respectively, a series of problems can appear in the in-process, kitchen waste contains abundant organic matter and nutrient substance, under the environment of anaerobism, can receive anaerobic microorganisms's fermentation, produce peculiar smell gas, influence the living environment of peripheral resident, can breed mosquito and propagate the germ simultaneously, harm peripheral resident's healthy, kitchen waste contains a large amount of moisture, can have the weeping problem, untreated discharge can pollute water and soil, on the other hand, the transportation also has the problem of waste liquid drippage, influence urban environment, bio-compost, the microbial reaction speed is slow, the process duration is longer.
Therefore, a kitchen waste treatment method is provided.
Disclosure of Invention
Objects of the invention
In order to solve the technical problems in the background technology, the invention provides a kitchen waste treatment method, which combines the biotechnology and the intelligent technology, encourages people to actively participate in the classified collection of the kitchen waste through points or cash exchange, improves the environmental awareness of the whole people, popularizes the environmental knowledge education by the aid of the method, treats the kitchen waste by the biotechnology, realizes the decomposition and conversion of the kitchen waste through the degradation of microorganisms, solves the problem of peculiar smell, and finally produces carbon dioxide, water and other harmless substances through reaction.
(II) technical scheme
In order to solve the problems, the invention provides a kitchen waste treatment method, which comprises the following steps:
A. collecting and processing
1, putting the kitchen waste into a designated collection container, wherein the container has the functions of weighing and data recording, and the weight data of the kitchen waste is obtained by weighing, converted into integral data and fed back to a user;
a2, performing odor control treatment on the kitchen waste by adopting a micronutrient technology, and adding a micronutrient additive into the kitchen waste;
B. solid-liquid separation
b1, breaking
Putting the kitchen garbage into a shredder, squeezing and smashing;
b2, dewatering
Putting the smashed kitchen waste into a screw squeezing dehydrator, applying pressure in a squeezing mode to separate solid slag and waste liquid, respectively collecting the solid slag and the waste liquid, treating the waste liquid by an MAA-green low-carbon zero-sludge sewage treatment system, and conveying the solid slag to a designated place for treatment by a special transport vehicle;
b3, ambient Disinfection
Sterilizing the surrounding environment by using a biodegradable disinfectant;
C. waste liquid treatment
Treating the separated waste liquid by an MAA-green low-carbon zero-sludge sewage treatment system, wherein the system respectively consists of a micronutrient technology, an anaerobic digestion and earthworm filtering reactor and an air circulation and natural medium filtering reactor;
the reaction process is as follows:
c1 micronutrient technology
Providing nutrient elements required for growth for facultative bacteria in a microorganism group in the sewage, and stimulating the growth and propagation of the facultative bacteria;
c2 anaerobic digestion and earthworm filtering reactor
The sewage is treated by the synergistic action of the earthworms and the microorganisms and is discharged in the form of humus after being digested;
c3 air circulation and natural medium filtering reactor
The process of material circulation in a natural ecological system is simulated through the filler layer, and sewage is treated through the synergistic effect of physics, chemistry and biology;
c4, disinfecting effluent
After being biodegraded and disinfected, the sewage is used for non-drinking purposes;
D. solid slag treatment
And after the solid slag is conveyed to a specified place, carrying out resource utilization treatment, and respectively using the solid slag for biogas power generation and micronutrient technology composting treatment.
Preferably, in a, the user may redeem points for gifts or cash rewards by WeChat or Payment.
Preferably, in A, the micronutrient is a pure natural plant extract, contains 'growth factors' required by the growth of microorganisms, promotes the growth and the propagation of facultative bacteria in a microorganism group, inhibits the growth of anaerobic bacteria, replaces anaerobic fermentation with facultative fermentation, and solves the problem of odor.
Preferably, in B, the biodegradable disinfectant is quaternary ammonium salt disinfectant.
Preferably, in C, the packing layer is composed of a natural medium for filtering contaminants in the water and carriers for culturing microorganisms.
Preferably, in D, micronutrient technology composting: the solid residue is placed in a ventilated place for degradation, turned over during the treatment and added with micronutrient additives for improving the microbial treatment efficiency and controlling the generation of peculiar smell, nutrient elements required by growth are provided by facultative bacteria in a microbial group, the growth of the facultative bacteria is stimulated, organic matters are quickly decomposed and converted, and finally water, soil humus and CO are generated2The reduction of garbage is realized, the final product contains a large amount of organic matters and trace elements such as nitrogen, phosphorus, potassium and the like after the solid waste is fermented and matured by microorganisms, the organic fertilizer can be used as an organic fertilizer, the cyclic utilization of resources is realized, the growth of facultative bacteria inhibits the growth of odor-producing anaerobic bacteria, and the generation of peculiar smell is controlled.
Preferably, in C, the earthworms are specially domesticated, and the specially domesticated earthworms use organic matters and nutrition in water as nutrients required for growth and propagation.
The technical scheme of the invention has the following beneficial technical effects:
1. guiding citizen
The method encourages citizens to actively participate in the classified collection of the kitchen waste, is beneficial to improving the environmental awareness of the whole citizens, improves the living environment, promotes the resource utilization of the kitchen waste, and can be used as an exemplary project to popularize the education of environmental protection knowledge to the society.
2. Reduction and detoxification
The kitchen waste is decomposed and converted by the microbial degradation, and harmless substances such as carbon dioxide, water, soil humus and the like are generated, and the reduction of the kitchen waste is realized.
3. Resource recovery
After the kitchen waste is fermented and matured by microorganisms, the product is an organic fertilizer which can be used for farms and greening, and the water in the kitchen waste can be used for non-drinking purposes or for supplementing underground water resources after being treated.
4. Reducing the generation of peculiar smell
The odor problem is solved by stimulating the growth of facultative bacteria in the microorganism population and replacing anaerobic fermentation with facultative fermentation.
5. Low-carbon environment-friendly
By improving the growth and reproduction speed of the microorganisms, the treatment efficiency is improved, and the energy consumption is reduced.
Drawings
FIG. 1 is a flow chart of a kitchen waste treatment method according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1, the kitchen waste treatment method provided by the invention comprises the following steps:
A. collecting and processing
1, putting the kitchen waste into a designated collection container, wherein the container has the functions of weighing and data recording, and the weight data of the kitchen waste is obtained by weighing, converted into integral data and fed back to a user;
a2, performing odor control treatment on the kitchen waste by adopting a micronutrient technology, and adding a micronutrient additive into the kitchen waste;
B. solid-liquid separation
b1, breaking
Putting the kitchen garbage into a shredder, squeezing and smashing;
b2, dewatering
Putting the smashed kitchen waste into a screw squeezing dehydrator, applying pressure in a squeezing mode to separate solid slag and waste liquid, respectively collecting the solid slag and the waste liquid, treating the waste liquid by an MAA-green low-carbon zero-sludge sewage treatment system, and conveying the solid slag to a designated place for treatment by a special transport vehicle;
b3, ambient Disinfection
Sterilizing the surrounding environment by using a biodegradable disinfectant;
C. waste liquid treatment
Treating the separated waste liquid by an MAA-green low-carbon zero-sludge sewage treatment system, wherein the system respectively consists of a micronutrient technology, an anaerobic digestion and earthworm filtering reactor and an air circulation and natural medium filtering reactor;
the reaction process is as follows:
c1 micronutrient technology
Providing nutrient elements required for growth for facultative bacteria in a microorganism group in the sewage, and stimulating the growth and propagation of the facultative bacteria;
c2 anaerobic digestion and earthworm filtering reactor
The sewage is treated by the synergistic action of the earthworms and the microorganisms and is discharged in the form of humus after being digested;
c3 air circulation and natural medium filtering reactor
The process of material circulation in a natural ecological system is simulated through the filler layer, and sewage is treated through the synergistic effect of physics, chemistry and biology;
c4, disinfecting effluent
After being biodegraded and disinfected, the sewage is used for non-drinking purposes;
it is noted that the nutrient elements required for growth are provided for facultative bacteria in a microorganism group in the sewage, the growth and the propagation of the facultative bacteria are stimulated, the sewage treatment efficiency of the microorganisms is improved, the dependence on chemicals is reduced, the problem of secondary pollution is avoided, the requirement of aeration is reduced, and the electric energy is saved; the sewage is treated by the synergistic effect of the earthworms and the microorganisms, the specially domesticated earthworms take organic matters and nutrition in the water as nutrients required by growth and reproduction, are discharged in the form of humus after being digested, can be used as organic fertilizer, prevent the generation of sludge, and also serve as animal feed after being reproduced, so that secondary economic benefit is created in the reaction process; simulating the process of substance circulation in a natural ecological system, treating sewage through the synergistic effect of physics, chemistry and biology, wherein the packing layer is composed of natural media and is used as a carrier for filtering pollutants in water and culturing microorganisms, solid suspended matters in the sewage are blocked and intercepted under the action of gravity, and meanwhile, the microorganisms in the packing layer decompose residual organic matters in the water; after being biodegraded and disinfected, the sewage can be used for non-drinking purposes, such as irrigation, land washing, groundwater supplementation and the like;
D. solid slag treatment
And after the solid slag is conveyed to a specified place, carrying out resource utilization treatment, and respectively using the solid slag for biogas power generation and micronutrient technology composting treatment.
In an optional embodiment, in A, the user can exchange the credit for gift or cash reward through WeChat or Paibao, aiming at arousing the participation of the whole people and improving the environmental awareness.
In an alternative embodiment, in A, the micronutrient is a pure natural plant extract, contains 'growth factors' required by the growth of microorganisms, promotes the growth and the reproduction of facultative bacteria in a microorganism group, inhibits the growth of anaerobic bacteria, and solves the problem of odor by replacing anaerobic fermentation with facultative fermentation.
In an optional embodiment, in B, the biodegradable disinfectant is a quaternary ammonium salt disinfectant, and has the characteristics of lasting and stable effect and broad-spectrum sterilization, and can effectively kill various germs in the environment and solve the problem of germ transmission.
In an alternative embodiment, in C, the packing layer is composed of a natural medium for filtering contaminants and carriers for culturing microorganisms in the water.
In an alternative embodiment, in D, micronutrient technology composting: the solid slag is placed in a ventilated place for degradation, and is treated in the middle of treatmentTurning soil and adding micronutrient additive for improving microorganism treatment efficiency and controlling odor generation, providing nutrient elements required for growth by providing facultative bacteria in microorganism group, stimulating growth, rapidly decomposing and converting organic matter, and finally generating water, soil humus, and CO2The reduction of garbage is realized, the final product contains a large amount of organic matters and trace elements such as nitrogen, phosphorus, potassium and the like after the solid waste is fermented and matured by microorganisms, the organic fertilizer can be used as an organic fertilizer, the cyclic utilization of resources is realized, the growth of facultative bacteria inhibits the growth of odor-producing anaerobic bacteria, and the generation of peculiar smell is controlled.
In an alternative embodiment, in C, the earthworms are specially domesticated, and the specially domesticated earthworms use organic matters and nutrients in water as nutrients required for growth and propagation.
In the invention, citizens are encouraged to actively participate in the classified collection of the kitchen waste, which is helpful for improving the environmental awareness of the whole citizens, improving the living environment and promoting the resource utilization of the kitchen waste, and can be used as an exemplary project to popularize the education of environmental protection knowledge to the society; decomposing and converting the kitchen waste through the microbial degradation to generate carbon dioxide, water, soil humus and other harmless substances, and reducing the amount of the kitchen waste; after the kitchen waste is fermented and matured by microorganisms, the product is an organic fertilizer which can be used for farms and greening. After the water in the kitchen garbage is treated, the water can be used for non-drinking or supplementing underground water resources; by stimulating the growth of facultative bacteria in the microorganism group and replacing anaerobic fermentation with facultative fermentation, the odor problem is solved; by improving the growth and reproduction speed of the microorganisms, the treatment efficiency is improved, and the energy consumption is reduced.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (5)
1. A kitchen waste treatment method is characterized by comprising the following steps:
A. collecting and processing
1, putting the kitchen waste into a designated collection container, wherein the container has the functions of weighing and data recording, and the weight data of the kitchen waste is obtained by weighing, converted into integral data and fed back to a user;
a2, performing odor control treatment on the kitchen waste by adopting a micronutrient technology, and adding a micronutrient additive into the kitchen waste;
B. solid-liquid separation
b1, breaking
Putting the kitchen garbage into a shredder, squeezing and smashing;
b2, dewatering
Putting the smashed kitchen waste into a screw squeezing dehydrator, applying pressure in a squeezing mode to separate solid slag and waste liquid, respectively collecting the solid slag and the waste liquid, treating the waste liquid by an MAA-green low-carbon zero-sludge sewage treatment system, and conveying the solid slag to a designated place for treatment by a special transport vehicle;
b3, ambient Disinfection
Sterilizing the surrounding environment by using a biodegradable disinfectant;
C. waste liquid treatment
Treating the separated waste liquid by an MAA-green low-carbon zero-sludge sewage treatment system, wherein the system respectively consists of a micronutrient technology, an anaerobic digestion and earthworm filtering reactor and an air circulation and natural medium filtering reactor;
the reaction process is as follows:
c1 micronutrient technology
Providing nutrient elements required for growth for facultative bacteria in a microorganism group in the sewage, and stimulating the growth and propagation of the facultative bacteria;
c2 anaerobic digestion and earthworm filtering reactor
The sewage is treated by the synergistic action of the earthworms and the microorganisms and is discharged in the form of humus after being digested;
c3 air circulation and natural medium filtering reactor
The process of material circulation in a natural ecological system is simulated through the filler layer, and sewage is treated through the synergistic effect of physics, chemistry and biology;
c4, disinfecting effluent
After being biodegraded and disinfected, the sewage is used for non-drinking purposes;
D. solid slag treatment
After the solid slag is conveyed to a designated place, carrying out resource utilization treatment for biogas power generation and micronutrient technology composting treatment respectively;
in A, the micronutrient is a pure natural plant extract, contains 'growth factors' required by the growth of microorganisms, promotes the growth and the reproduction of facultative bacteria in a microorganism group, inhibits the growth of anaerobic bacteria, replaces anaerobic fermentation with facultative fermentation, and solves the problem of odor;
in the step D, the micronutrient technology composting treatment: the solid residues are placed in a ventilated place for degradation, turned over during the treatment and added with micronutrient additives for improving the microbial treatment efficiency and controlling the generation of peculiar smell, nutrient elements required by growth are provided by facultative bacteria in a microbial group, the growth of the facultative bacteria is stimulated, organic matters are quickly decomposed and converted, and finally water, soil humus and CO are generated2The reduction of garbage is realized, the final product contains a large amount of organic matters and trace elements such as nitrogen, phosphorus, potassium and the like after the solid waste is fermented and matured by microorganisms, the organic fertilizer can be used as an organic fertilizer, the cyclic utilization of resources is realized, the growth of facultative bacteria inhibits the growth of odor-producing anaerobic bacteria, and the generation of peculiar smell is controlled.
2. The kitchen waste disposal method as recited in claim 1, wherein in A, the user can exchange the credit for gift or cash reward by WeChat or Payment.
3. The method according to claim 1, wherein the biodegradable disinfectant is a quaternary ammonium salt disinfectant in B.
4. The kitchen waste treatment method according to claim 1, wherein in C, the packing layer is composed of natural media for filtering contaminants in water and carriers for culturing microorganisms.
5. The method according to claim 1, wherein the earthworms are specially domesticated in the step C, and the specially domesticated earthworms use organic matters and nutrients in water as nutrients required for growth and reproduction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010663199.1A CN111842419B (en) | 2020-07-10 | 2020-07-10 | Kitchen waste treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010663199.1A CN111842419B (en) | 2020-07-10 | 2020-07-10 | Kitchen waste treatment method |
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| Publication Number | Publication Date |
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| CN111842419A CN111842419A (en) | 2020-10-30 |
| CN111842419B true CN111842419B (en) | 2022-05-27 |
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| CN202010663199.1A Active CN111842419B (en) | 2020-07-10 | 2020-07-10 | Kitchen waste treatment method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114789181B (en) * | 2021-01-25 | 2023-12-05 | 北京科技大学 | Kitchen waste recycling method |
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