CN117486640A - Method for cooperatively disposing garden waste and kitchen waste biogas slurry - Google Patents
Method for cooperatively disposing garden waste and kitchen waste biogas slurry Download PDFInfo
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- CN117486640A CN117486640A CN202311406374.9A CN202311406374A CN117486640A CN 117486640 A CN117486640 A CN 117486640A CN 202311406374 A CN202311406374 A CN 202311406374A CN 117486640 A CN117486640 A CN 117486640A
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- waste
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- kitchen waste
- aerobic fermentation
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- 239000010921 garden waste Substances 0.000 title claims abstract description 52
- 239000010806 kitchen waste Substances 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 40
- 239000002002 slurry Substances 0.000 title claims abstract description 38
- 239000000463 material Substances 0.000 claims abstract description 35
- 238000010564 aerobic fermentation Methods 0.000 claims abstract description 30
- 230000029087 digestion Effects 0.000 claims abstract description 21
- 239000002131 composite material Substances 0.000 claims abstract description 17
- 230000032683 aging Effects 0.000 claims abstract description 15
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 12
- 238000005507 spraying Methods 0.000 claims abstract description 10
- 239000003895 organic fertilizer Substances 0.000 claims abstract description 9
- 230000009286 beneficial effect Effects 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 239000000758 substrate Substances 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 230000004151 fermentation Effects 0.000 claims description 12
- 230000001502 supplementing effect Effects 0.000 claims description 8
- 239000002912 waste gas Substances 0.000 claims description 8
- 241000894006 Bacteria Species 0.000 claims description 6
- 238000000855 fermentation Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 230000012010 growth Effects 0.000 claims description 4
- 244000005700 microbiome Species 0.000 claims description 4
- 241000186361 Actinobacteria <class> Species 0.000 claims description 3
- 241000194108 Bacillus licheniformis Species 0.000 claims description 3
- 244000063299 Bacillus subtilis Species 0.000 claims description 3
- 235000014469 Bacillus subtilis Nutrition 0.000 claims description 3
- 241000193417 Brevibacillus laterosporus Species 0.000 claims description 3
- 241000194032 Enterococcus faecalis Species 0.000 claims description 3
- 241000194031 Enterococcus faecium Species 0.000 claims description 3
- 102000004190 Enzymes Human genes 0.000 claims description 3
- 108090000790 Enzymes Proteins 0.000 claims description 3
- 241000233866 Fungi Species 0.000 claims description 3
- 241000186660 Lactobacillus Species 0.000 claims description 3
- 241000235342 Saccharomycetes Species 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000013329 compounding Methods 0.000 claims description 3
- 229940032049 enterococcus faecalis Drugs 0.000 claims description 3
- 229940039696 lactobacillus Drugs 0.000 claims description 3
- 235000006286 nutrient intake Nutrition 0.000 claims description 3
- 230000000243 photosynthetic effect Effects 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 239000013589 supplement Substances 0.000 claims description 3
- 230000005070 ripening Effects 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 19
- 238000004064 recycling Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000002881 soil fertilizer Substances 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000010813 municipal solid waste Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 238000013138 pruning Methods 0.000 description 2
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000109 continuous material Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000010791 domestic waste Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004021 humic acid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000000209 wet digestion Methods 0.000 description 1
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/20—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation using specific microorganisms or substances, e.g. enzymes, for activating or stimulating the treatment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Tropical Medicine & Parasitology (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a method for cooperatively disposing garden waste and kitchen waste biogas slurry. The method comprises the following steps: crushing and crushing garden wastes, and piling up the crushed garden wastes into a pile; inoculating the composite height Wen Junji into the garden waste crushed material; spraying anaerobic digestion biogas slurry of kitchen waste on the mixed pile body; through aerobic fermentation, decomposition, aging and other processes, the organic fertilizer can be finally formed and can be used as substrate soil or organic fertilizer production raw materials. The scheme provided by the invention can be used for carrying out cooperative treatment on biogas slurry generated in the treatment process of garden waste and kitchen waste, and is beneficial to further recycling and reutilization of the biogas slurry of the garden waste and the kitchen waste.
Description
Technical Field
The invention relates to the field of garden waste recycling treatment, in particular to a method for cooperatively treating garden waste and kitchen waste biogas slurry.
Background
The garden waste is a pruning material for various plants such as ecological forestry, landscaping and the like and byproducts (including dried branches, fallen leaves, grass scraps, flower loss, plant residues and the like) generated in the maintenance process of the pruning material. The garden waste generally has the characteristics of small density, large gap, large volume, high lignocellulose, slow natural degradation and the like, and the collection, transportation and temporary storage treatment costs are higher due to the special material characteristics of the garden waste, so that the recycling difficulty of the garden waste is increased. Along with the great promotion of ecological environment and beautiful China construction of the country, the landscaping construction speed is increased, the town greening area is increased year by year, and the generation amount of garden wastes is also greatly increased along with the increase. Under the policy guidance of 'garbage classification' and 'no-waste city' construction, part of garden waste mixed into an environmental sanitation system for cooperative treatment needs to be singly received and transported and recycled, and the direct entry of the garden waste into a domestic garbage landfill and an incineration power plant is forbidden in many cities.
Kitchen waste is a main solid waste generated in urban residents in China, and the generated amount of the kitchen waste is large and accounts for about 30% -50% of the content of the urban household waste. At present, anaerobic digestion is the main stream process for domestic kitchen waste treatment, and kitchen waste generates biogas and simultaneously generates a large amount of biogas slurry, and the kitchen waste treatment capacity and the anaerobic digestion biogas slurry generation capacity in the medium-temperature wet digestion process are about 1:1.
Disclosure of Invention
The invention provides a method for cooperatively disposing garden waste and kitchen waste biogas slurry, which is beneficial to further recycling and reutilizing the garden waste and kitchen waste biogas slurry.
The embodiment of the invention provides a method for cooperatively disposing garden waste and kitchen waste biogas slurry, which comprises the following steps:
crushing and crushing garden wastes, and piling up the crushed garden wastes into a pile;
inoculating the composite height Wen Junji into the stack;
spraying anaerobic digestion biogas slurry of kitchen waste on the mixed pile body;
waiting for an aerobic fermentation process;
waiting for the decomposition and aging process.
In one possible design, the garden waste is crushed and pulverized, and piled up into a pile, and the method further comprises:
the water content of the garden waste entering the field is controlled to be 45-65%, and the grain diameter of the materials after crushing and crushing treatment is 5-25mm.
In one possible design, the composite height Wen Junji is inoculated into the stack and further comprises:
starting a pile turning machine to uniformly mix the composite height Wen Junji with the garden waste crushed materials, and paving and stacking the mixture into a pile body with the width of more than or equal to 3.0m, the height of 1.2-2.0 m and the length of more than or equal to 5 m;
mixing per 100m 3 The proportion of the composite height Wen Junji g-200 g is added by inoculating the garden waste crushed material;
the composite high Wen Junji is formed by compounding beneficial strains with specific functions such as bacillus subtilis, bacillus licheniformis, white rot fungi, enterococcus faecalis, enterococcus faecium, saccharomycetes, bacillus laterosporus, denitrifying bacteria, actinomycetes, lactobacillus, photosynthetic bacteria and the like and related enzymes, and the effective viable count is more than 100 hundred million CFU.g < -1 >.
In one possible design, the anaerobic digestion biogas slurry of kitchen waste is sprayed on the mixed pile body, and the method further comprises the following steps:
after the kitchen waste anaerobic digestion biogas slurry is sprayed on the mixed pile body, the water content of the pile body is controlled to be 50% -65%, so that an aerobic fermentation bed is formed.
In one possible design, waiting for the aerobic fermentation process further comprises:
along with the rapid growth and propagation of microorganisms in the aerobic fermentation bed, nutrient consumption is realized, after fermentation for 3-5 days, after the temperature of the aerobic fermentation bed is raised to 55-65 ℃, timely feeding, turning and spraying kitchen waste anaerobic digestion biogas slurry are needed;
the material supplementing is to supplement the ground materials of garden waste, and the material supplementing amount is suitable for keeping the original volume of the pile;
the pile turning frequency is 1-2 times per day;
the anaerobic digestion biogas slurry of the kitchen waste is sprayed, the water content of the aerobic fermentation bed is controlled to be 50% -65%, and the temperature is kept at 55 ℃ -65 ℃;
the aerobic fermentation reaction lasts for 65-80 days.
In one possible design, waiting for the ripening, aging process further comprises:
the decomposition and aging process is kept for 10-15 days, and finally the organic fertilizer can be used as substrate soil or a raw material for producing organic fertilizer.
In one possible design, waste gas negative pressure collecting systems are arranged in the material aerobic fermentation, decomposition and aging chambers, and the collected waste gas is treated by a two-stage acid and alkali spray tower in sequence and then discharged after reaching standards.
According to the scheme, the treatment method provided by the invention comprises the steps of crushing and crushing garden waste, stacking the garden waste into a pile, inoculating the composite height Wen Junji into the crushed garden waste, spraying anaerobic digestion biogas slurry of kitchen waste on the mixed pile, and performing aerobic fermentation, decomposition, aging and other processes to finally form the substrate soil or organic fertilizer production raw material. The scheme provided by the invention can be used for carrying out cooperative treatment on biogas slurry generated in the treatment process of garden waste and kitchen waste, and is beneficial to further recycling and reutilization of the biogas slurry of the garden waste and the kitchen waste.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are some embodiments of the invention and that other drawings may be obtained based on these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic process flow diagram according to an embodiment of the present invention.
Fig. 2 is a fertilizer efficiency index chart of anaerobic digestion of kitchen waste biogas slurry.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is apparent that the described embodiments are some, but not all embodiments of the present invention, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present invention are within the protection scope of the present invention.
Fig. 1 is a schematic process flow diagram according to an embodiment of the present invention. Referring to fig. 1, the co-processing method is applicable to the field of garden garbage recycling treatment, and is used for crushing and pulverizing garden wastes and stacking the garden wastes into piles; inoculating the composite height Wen Junji into the garden waste crushed material; spraying anaerobic digestion biogas slurry of kitchen waste on the mixed pile body; and finally forming a process which can be used as a substrate soil or an organic fertilizer production raw material through aerobic fermentation, decomposition, aging and other processes.
Fig. 2 is a fertilizer efficiency index chart of anaerobic digestion of kitchen waste biogas slurry. Referring to fig. 2, the anaerobic biogas slurry of kitchen waste belongs to high-concentration organic wastewater with high CODcr and high ammonia nitrogen, and at present, the anaerobic biogas slurry of kitchen waste mainly adopts a process of pretreatment+mbr (denitrification/nitrification/ultrafiltration) +nf (nanofiltration), and has the problems of complex treatment process, high investment of treatment facilities, poor running stability of a system, high running cost and the like, and the anaerobic biogas slurry of kitchen waste contains a certain amount of material characteristics of nutrient substances required by plant growth, such as organic matters, humic acid, nitrogen, phosphorus, calcium, magnesium, sulfur and the like, so that the two processes are cooperatively treated, thereby achieving the purposes of saving cost, reducing cost and enhancing efficiency.
The processing method comprises the following steps:
step 1, crushing and crushing garden wastes, and stacking the crushed garden wastes into a pile.
In this step, the water content of the incoming garden waste and the size of the crushed particle size affect the subsequent aerobic fermentation process, so that the water content of the garden waste and the size of the crushed particle size need to be controlled.
In one embodiment, the humidity in step 1 may be set as follows:
the water content of the garden waste entering the field is controlled to be 55%, and the grain diameter of the material after crushing and crushing treatment is 15mm.
And 2, inoculating the composite height Wen Junji into the garden waste crushed material and uniformly mixing.
In the step, the composite height Wen Junji and the garden waste crushed materials are uniformly mixed according to a certain proportion by a pile turning machine, so that the best effect is achieved. The composite high Wen Junji is formed by compounding beneficial strains with specific functions such as bacillus subtilis, bacillus licheniformis, white rot fungi, enterococcus faecalis, enterococcus faecium, saccharomycetes, bacillus laterosporus, denitrifying bacteria, actinomycetes, lactobacillus, photosynthetic bacteria and the like and related enzymes, and the effective viable count is more than 100 hundred million CFU.g < -1 >.
In one embodiment, the mixing ratio in step 2 may be set as follows:
according to every 100m 3 The garden waste crushed materials are inoculated and mixed according to the proportion of adding the composite height of Wen Junji g to 175 g.
And 3, paving and stacking the uniformly mixed materials into a pile body with a certain size.
In one embodiment, the stack size in step 3 may be set as follows:
the mixture was stacked into a stack having a width of 3.0m, a height of 1.6m and a length of 5 m.
And 4, spraying anaerobic digestion biogas slurry of kitchen waste on the mixed pile body.
In the step, in order to better form an aerobic fermentation bed, the water content of the pile body is required to be controlled, and then the spraying amount of anaerobic digestion biogas slurry of kitchen waste is controlled by controlling the water content of the pile body.
In some embodiments, the water content of the stack in step 4 may be set as follows:
the water content of the material mixing pile body is controlled to 55 percent.
And 5, performing aerobic fermentation.
And 6, material supplementing and pile turning.
And 7, controlling the temperature and the humidity.
In the above steps, in order to achieve better fermentation effect, the temperature and humidity of the aerobic fermentation bed are controlled, and along with the rapid growth and propagation of microorganisms in the aerobic fermentation bed and the consumption of nutrients, continuous material supplementing and pile turning are also required, and the step 4 is repeated, so that the anaerobic digestion biogas slurry of kitchen waste is sprayed on the mixed pile body.
In some embodiments, the steps 4, 5, 6, 7 further comprise the steps of:
along with the rapid growth and propagation of microorganisms in the aerobic fermentation bed, nutrient consumption is realized, after fermentation for 4 days, after the temperature of the aerobic fermentation bed is raised to 60 ℃, timely feeding, turning and spraying kitchen waste anaerobic digestion biogas slurry are needed. The material supplementing is to supplement the crushed materials of the garden waste, and the material supplementing amount is proper to keep the original volume of the pile. The frequency of pile turning was 1 time per day. The water content of the aerobic fermentation bed is controlled to be 60% while the kitchen waste is sprayed to anaerobically digest the biogas slurry, and the temperature is kept at 60 ℃. The aerobic fermentation reaction was continued for 75 days.
And 8, decomposing and aging.
In the steps, the aerobic fermentation process is finished, most of materials are finished in the fermentation process, and the rest materials which are completely fermented enter the decomposition and aging processes to finish the fermentation process. The process material does not need to be fed, turned over and sprayed with anaerobic biogas slurry of kitchen waste, and only needs to keep the pile body to be a certain volume for a period of time. The materials after the decomposition and aging processes can be used as the production raw materials of matrix soil or organic fertilizer.
In some embodiments, the volume and the placement time of the stack in the step 8 may be set as follows:
the pile size is kept to be 3.0m wide, 1.6m high and 5m long, and the standing time is 12 days.
And 9, collecting and treating waste gas.
In the steps, waste gas negative pressure collecting systems are arranged in the material aerobic fermentation and decomposition and aging chambers so as to treat waste gas and prevent pollution.
In some embodiments, the step 9 further includes:
waste gas collected in the whole process is treated by a two-stage acid and alkali spray tower in sequence and then discharged after reaching standards.
It is noted that relational terms such as first and second, and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of additional identical elements in a process, method, article or apparatus that comprises the element.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.
Claims (7)
1. A method for co-disposing garden waste and kitchen waste biogas slurry, the method comprising:
crushing and crushing garden wastes, and piling up the crushed garden wastes into a pile;
inoculating the composite height Wen Junji into the stack;
spraying anaerobic digestion biogas slurry of kitchen waste on the mixed pile body;
waiting for an aerobic fermentation process;
waiting for the decomposition and aging process.
2. The method of claim 1, wherein the garden waste is crushed, pulverized, and piled in a pile, further comprising:
the water content of the garden waste entering the field is controlled to be 45-65%, and the grain diameter of the materials after crushing and crushing treatment is 5-25mm.
3. The method of claim 1, wherein inoculating the composite height Wen Junji in the stack further comprises:
starting a pile turning machine to uniformly mix the composite height Wen Junji with the garden waste crushed materials, and paving and stacking the mixture into a pile body with the width of more than or equal to 3.0m, the height of 1.2-2.0 m and the length of more than or equal to 5 m;
mixing per 100m 3 The proportion of the composite height Wen Junji g-200 g is added by inoculating the garden waste crushed material;
the composite high Wen Junji is formed by compounding beneficial strains with specific functions such as bacillus subtilis, bacillus licheniformis, white rot fungi, enterococcus faecalis, enterococcus faecium, saccharomycetes, bacillus laterosporus, denitrifying bacteria, actinomycetes, lactobacillus, photosynthetic bacteria and the like and related enzymes, and the effective viable count is 100 hundred million CFU.g -1 The above.
4. The method of claim 1, wherein the anaerobic digestion of kitchen waste biogas slurry is sprayed on the mixed heap, further comprising:
after the kitchen waste anaerobic digestion biogas slurry is sprayed on the mixed pile body, the water content of the pile body is controlled to be 50% -65%, so that an aerobic fermentation bed is formed.
5. The method of claim 1, wherein waiting for the aerobic fermentation process further comprises:
along with the rapid growth and propagation of microorganisms in the aerobic fermentation bed, nutrient consumption is realized, after fermentation for 3-5 days, after the temperature of the aerobic fermentation bed is raised to 55-65 ℃, timely feeding, turning and spraying kitchen waste anaerobic digestion biogas slurry are needed;
the material supplementing is to supplement the ground materials of garden waste, and the material supplementing amount is suitable for keeping the original volume of the pile;
the pile turning frequency is 1-2 times per day;
the anaerobic digestion biogas slurry of the kitchen waste is sprayed, the water content of the aerobic fermentation bed is controlled to be 50% -65%, and the temperature is kept at 55 ℃ -65 ℃;
the aerobic fermentation reaction lasts for 65-80 days.
6. The method of claim 1, wherein waiting for the ripening, aging process further comprises:
the decomposition and aging process is kept for 10-15 days, and finally the organic fertilizer can be used as substrate soil or a raw material for producing organic fertilizer.
7. The method according to claim 1, wherein the waste gas negative pressure collecting system is arranged in each of the aerobic fermentation, the decomposition and the aging chambers of the material, and the collected waste gas is treated by the two-stage acid and alkali spray towers in sequence and then discharged after reaching the standard.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311406374.9A CN117486640A (en) | 2023-10-26 | 2023-10-26 | Method for cooperatively disposing garden waste and kitchen waste biogas slurry |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311406374.9A CN117486640A (en) | 2023-10-26 | 2023-10-26 | Method for cooperatively disposing garden waste and kitchen waste biogas slurry |
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| CN117486640A true CN117486640A (en) | 2024-02-02 |
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| CN202311406374.9A Pending CN117486640A (en) | 2023-10-26 | 2023-10-26 | Method for cooperatively disposing garden waste and kitchen waste biogas slurry |
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