CN115010549A - Reduction of acid red soil N 2 O-discharged biomass charcoal material and preparation and use methods thereof - Google Patents
Reduction of acid red soil N 2 O-discharged biomass charcoal material and preparation and use methods thereof Download PDFInfo
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- CN115010549A CN115010549A CN202111513862.0A CN202111513862A CN115010549A CN 115010549 A CN115010549 A CN 115010549A CN 202111513862 A CN202111513862 A CN 202111513862A CN 115010549 A CN115010549 A CN 115010549A
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- 239000000463 material Substances 0.000 title claims abstract description 76
- 239000002028 Biomass Substances 0.000 title claims abstract description 65
- 239000003610 charcoal Substances 0.000 title claims abstract description 64
- 239000002689 soil Substances 0.000 title claims abstract description 60
- 239000002253 acid Substances 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 230000009467 reduction Effects 0.000 title claims description 12
- 238000000855 fermentation Methods 0.000 claims abstract description 37
- 238000002156 mixing Methods 0.000 claims abstract description 19
- 239000007787 solid Substances 0.000 claims abstract description 17
- 239000003337 fertilizer Substances 0.000 claims abstract description 14
- 239000006227 byproduct Substances 0.000 claims abstract description 13
- 238000003756 stirring Methods 0.000 claims abstract description 12
- 210000003608 fece Anatomy 0.000 claims abstract description 9
- 239000002699 waste material Substances 0.000 claims abstract description 9
- 239000010871 livestock manure Substances 0.000 claims abstract description 8
- 239000010802 sludge Substances 0.000 claims abstract description 8
- 241000233866 Fungi Species 0.000 claims abstract description 6
- 238000010000 carbonizing Methods 0.000 claims abstract description 6
- 238000012545 processing Methods 0.000 claims abstract description 6
- 244000144972 livestock Species 0.000 claims abstract description 5
- 244000144977 poultry Species 0.000 claims abstract description 5
- 239000002361 compost Substances 0.000 claims abstract description 3
- 239000001301 oxygen Substances 0.000 claims abstract description 3
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 3
- 239000002023 wood Substances 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 230000004151 fermentation Effects 0.000 claims description 15
- 238000001035 drying Methods 0.000 claims description 7
- 238000009264 composting Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000007873 sieving Methods 0.000 claims description 5
- 239000010806 kitchen waste Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 238000010298 pulverizing process Methods 0.000 claims description 4
- 230000002378 acidificating effect Effects 0.000 claims description 3
- 238000003763 carbonization Methods 0.000 claims description 2
- 238000000197 pyrolysis Methods 0.000 claims description 2
- 239000010813 municipal solid waste Substances 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 7
- 230000035558 fertility Effects 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000000813 microbial effect Effects 0.000 abstract description 3
- 101150045948 nosZ gene Proteins 0.000 abstract description 3
- 239000005416 organic matter Substances 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 3
- 230000004048 modification Effects 0.000 description 8
- 238000012986 modification Methods 0.000 description 8
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 239000010815 organic waste Substances 0.000 description 4
- 244000166124 Eucalyptus globulus Species 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 235000017060 Arachis glabrata Nutrition 0.000 description 2
- 244000105624 Arachis hypogaea Species 0.000 description 2
- 235000010777 Arachis hypogaea Nutrition 0.000 description 2
- 235000018262 Arachis monticola Nutrition 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 235000020232 peanut Nutrition 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 210000003484 anatomy Anatomy 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000004720 fertilization Effects 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 230000007954 hypoxia Effects 0.000 description 1
- 239000001272 nitrous oxide Substances 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000004227 thermal cracking Methods 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Biotechnology (AREA)
- Biochemistry (AREA)
- Engineering & Computer Science (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- Tropical Medicine & Parasitology (AREA)
- Soil Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Inorganic Chemistry (AREA)
- Fertilizers (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a method for reducing N in acid red soil 2 A biomass charcoal material discharged by O and a preparation and use method thereof belong to the field of environmental protection. The method comprises the following steps: and (2) uniformly stirring and mixing 30-60 parts of biomass charcoal obtained by pyrolyzing and carbonizing agricultural and forestry wastes and kitchen garbage under an anaerobic or low-oxygen condition, 20-40 parts of solid byproducts obtained by anaerobic fermentation of livestock and poultry manure and sludge, and 20-40 parts of fertilizer obtained by fermenting wood processing residues and edible fungus residue compost to obtain the biomass charcoal material. The biomass charcoal material is applied to the acid red soil, so that the structure, the texture, the organic matter, the fertility condition, the pH value and the like of the acid red soil can be improved, the abundance of functional genes nosZ in the denitrification process of the acid red soil is increased, and the microbial community structure of the soil is changed, so that the N in the acid red soil is enabled 2 The O emission is greatly reduced. Most of raw materials for preparing the biomass charcoal material are organic wasteThe waste is convenient to obtain materials, the preparation cost is low, and the environment and economic benefits are good.
Description
Technical Field
The invention relates to the field of environmental protection, in particular to a method for reducing N in acid red soil 2 O-discharged biomass charcoal material and preparation and use methods thereof.
Background
Nitrous oxide (N) 2 O) is a greenhouse gas, and research on emission reduction countermeasures is gradually emphasized by the academic community. The soil being N 2 One of the important sources of O emission, wherein farmland soil accounts for more than 60%. The red soil is typical soil in tropical and subtropical regions of China, spans 16 provinces and regions, accounts for about 23 percent of the total area of the land of China, accounts for 28 percent of the cultivated land area, and is the soilNational important agriculture and forestry soil resources. Due to unreasonable fertilization, operation and management, acid rain influence, prominent red soil acidification and other problems, low fertility level and high viscosity, the fertilizer becomes high in N 2 And O emission coefficient of the soil ecosystem. Therefore, research and development of a method for reducing N in acid red soil 2 The material and practical use method of O emission are not slow.
The biomass charcoal is a high-stability carbide produced by high-temperature thermal cracking of biomass materials under the condition of partial or complete hypoxia, and has great attention in recent years due to good anatomical structure, good physicochemical properties, wide material sources and wide industrial development prospects. In application, the biomass charcoal generally needs to be modified by a chemical reagent to prepare a biomass charcoal material, but the modification greatly increases the cost for preparing the biomass charcoal material, the treatment of waste water and waste materials generated in the modification process also increases the cost and the production difficulty, and the improper treatment can bring secondary pollution to the environment.
Disclosure of Invention
In order to solve the problems, the invention aims to produce the red soil with reduced acid N by using organic wastes without modifying chemical reagents 2 And O, discharging biomass charcoal material.
In order to achieve the above object, the present invention provides the following technical solutions:
reduction of acid red soil N 2 The preparation method of the biomass charcoal material discharged by O comprises the following steps:
1) drying and crushing the agriculture and forestry wastes and the kitchen wastes, and pyrolyzing and carbonizing under an anaerobic or low-oxygen condition to obtain biomass charcoal for later use;
2) mixing the livestock and poultry manure and the sludge, uniformly stirring, adjusting the mixture to the initial total solid concentration of 6-12% by using clear water, and then carrying out anaerobic fermentation; drying and crushing the solid by-product obtained by anaerobic fermentation under natural conditions into 1-5mm crushed materials for later use;
3) pulverizing the wood processing residues and the edible fungus residues into crushed materials with the particle size of 0.5-2mm, adding 8-15 wt% of bran, uniformly mixing, adjusting the initial water content to 60% -70% by using clear water, and then performing composting fermentation; sieving the fertilizer obtained by fermentation with a sieve of 2mm for later use;
4) mixing the biomass charcoal prepared in the steps 1), 2) and 3), the anaerobic fermentation solid byproduct and the fertilizer in parts by weight, and stirring and mixing uniformly to obtain a biomass charcoal material for later use;
preferably, in the step 1), the agricultural and forestry wastes and the kitchen wastes are dried at the temperature of 80-100 ℃ and are crushed into 0.5-2mm crushed materials, the pyrolysis carbonization temperature is 400-600 ℃, and the time is 2-6 h.
Preferably, in the step 2), the livestock and poultry manure and the sludge are mixed according to the weight ratio of 1-5: 1.
Preferably, in the step 2), the anaerobic fermentation is normal-temperature anaerobic fermentation, and the fermentation time is 25-60 days.
Preferably, in the step 3), the compost fermentation temperature is 50-70 ℃, and the fermentation time is 45-60 days.
Reduction of acid red soil N 2 O-emitting biochar material prepared from the above-mentioned acidic red soil N 2 The preparation method of the biomass charcoal material discharged by O.
Preferably, in the step 4), the biomass charcoal material is prepared by uniformly stirring and mixing 30-60 parts of biomass charcoal, 20-40 parts of anaerobic fermentation solid byproducts and 20-40 parts of fertilizers.
Reduction of acid red soil N 2 The use method of the biomass charcoal material discharged by O comprises the following steps: the biomass charcoal material is applied to the acid red soil, then the soil is turned over, and the biomass charcoal material and the acid red soil are uniformly mixed.
Preferably, the application amount of the biomass charcoal material is 500-2000 kg per mu.
Compared with the prior art, the invention has the following advantages:
1) the biomass charcoal material provided by the invention is prepared from organic wastes, is convenient to obtain materials, is low in preparation cost, and has good environmental and economic benefits.
2) The biomass charcoal is prepared from organic wastes without chemical reagent modification, so that the cost for preparing the biomass charcoal material is saved, the treatment cost and the production difficulty of waste water and waste materials generated in the modification process are reduced, secondary pollution is avoided, and the environment is protected; meanwhile, according to the characteristics of different raw materials, different processes are carried out, so that the biomass charcoal material prepared by mixing the processed raw materials according to a certain proportion is superior in structure and performance.
3) The biomass charcoal material prepared by the invention can improve the structure, texture, organic matter, fertility condition, pH value and the like of the acid red soil, increase the abundance of functional genes nosZ in the denitrification process of the acid red soil and change the structure of soil microbial communities, thereby reducing the N content of the acid red soil 2 And (4) discharging O.
Detailed Description
The present invention will be described in detail with reference to examples, but the present invention is not limited to the examples.
Example 1
Reduction of acid red soil N 2 The biomass charcoal material with O emission is prepared by the following method:
1) drying rice straws and kitchen garbage at 80 ℃, crushing the rice straws and the kitchen garbage into 1mm crushed materials, and pyrolyzing and carbonizing the crushed materials for 6 hours at 400 ℃ under an anaerobic condition to obtain biomass charcoal for later use;
2) mixing pig manure and sludge according to the weight ratio of 1:1, uniformly stirring, adjusting the mixture to the initial total solid concentration of 12% by using clear water, and then carrying out anaerobic fermentation at normal temperature for 25 days; airing and crushing the solid by-product obtained by anaerobic fermentation under natural conditions into 2mm crushed materials for later use;
3) crushing the fir processing residues and the edible fungus residues into crushed materials with the particle size of 1mm, adding 8% of bran by weight, uniformly mixing, adjusting the initial water content to 60% by using clear water, and then composting and fermenting for 60 days at 50 ℃; sieving the fertilizer obtained by fermentation with a 2mm sieve for later use;
4) and (3) stirring and uniformly mixing 50 parts of biomass charcoal, 30 parts of anaerobic fermentation solid by-product and 20 parts of fertilizer prepared in the steps 1), 2) and 3) to obtain the biomass charcoal material.
Example 2
Reduction of acid red soil N 2 The biomass charcoal material discharged by O is prepared by the following method:
1) drying dead branches and fallen leaves of eucalyptus and kitchen garbage at 100 ℃, crushing the dried dead branches and fallen leaves of eucalyptus and the kitchen garbage into 2mm crushed materials, and pyrolyzing and carbonizing the crushed materials for 2 hours at 600 ℃ under an anaerobic condition to obtain biomass charcoal for later use;
2) mixing cow dung excrement and sludge according to the weight ratio of 3:1, uniformly stirring, adjusting the mixture to the initial total solid concentration of 6% by using clear water, and then performing anaerobic fermentation at normal temperature for 60 days; airing and crushing the solid by-product obtained by anaerobic fermentation under natural conditions into 1mm crushed materials for later use;
3) pulverizing lignum Cinnamomi Camphorae processing residues and domestic fungus residues into 0.5mm, adding 12 wt% of testa Tritici, mixing, adjusting initial water content to 70% with clear water, and performing composting fermentation at 60 deg.C for 50 days; sieving the fertilizer obtained by fermentation with a 2mm sieve for later use;
4) and (3) stirring and mixing 60 parts of biomass charcoal, 20 parts of anaerobic fermentation solid by-products and 20 parts of fertilizers which are prepared in the steps 1), 2) and 3) uniformly to prepare the biomass charcoal material.
Example 3
Reduction of acid red soil N 2 The biomass charcoal material discharged by O is prepared by the following method:
1) drying peanut shells and kitchen garbage at 90 ℃, crushing the peanut shells and the kitchen garbage into 0.5mm crushed materials, and pyrolyzing and carbonizing the crushed materials for 3 hours at 500 ℃ under an anaerobic condition to obtain biomass charcoal for later use;
2) mixing the mixed excrement of pig manure and cow manure and sludge according to the weight ratio of 5:1, uniformly stirring, adjusting the initial water content of the mixture to 10% by using clear water, and then performing anaerobic fermentation at normal temperature for 45 days; airing and crushing the solid by-product obtained by anaerobic fermentation under natural conditions into 5mm crushed materials for later use;
3) pulverizing the eucalyptus processing residues and the edible fungus residues into crushed materials with the particle size of 2mm, adding 15 wt% of bran, uniformly mixing, adjusting the initial water content to 65% by using clear water, and performing composting fermentation at 70 ℃ for 45 days; sieving the fertilizer obtained by fermentation with a sieve of 2mm for later use;
4) and (3) stirring and mixing 30 parts of biomass charcoal, 40 parts of anaerobic fermentation solid by-product and 30 parts of fertilizer which are prepared in the steps 1), 2) and 3) uniformly to prepare the biomass charcoal material.
Use example 1
The biochar material prepared in example 1 is applied to the acid red soil according to 1000kg per mu, then soil turning is carried out, and the biochar material and the acid red soil are uniformly mixed.
Use example 2
The biochar material prepared in example 2 is applied to the acid red soil according to 500kg per mu, then soil turning is carried out, and the biochar material and the acid red soil are uniformly mixed.
Use example 3
The biochar material prepared in example 3 is applied to the acid red soil according to 2000kg per mu, then soil turning is carried out, and the biochar material and the acid red soil are uniformly mixed.
And (4) analyzing results: compared with the acid red soil without applying the biomass charcoal material, the biomass charcoal material prepared by the invention can improve the structure, texture, organic matter, fertility condition, pH value and the like of the acid red soil, increase the abundance of functional genes nosZ in the denitrification process of the acid red soil, change the structure of soil microbial communities and reduce N in the acid red soil 2 And (4) discharging O.
From the above examples, it can be seen that the present invention provides a method for reducing N in acidic red soil 2 The biomass charcoal material discharged by the O and the preparation and use methods thereof utilize organic wastes to prepare the biomass charcoal material without carrying out chemical reagent modification on the biomass charcoal, save the cost for preparing the biomass charcoal material, also reduce the treatment cost and the production difficulty of waste water and waste materials generated in the modification process, do not bring secondary pollution, and protect the environment;
the foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. Reduction of acid red soil N 2 The preparation method of the biomass charcoal material with O emission is characterized by comprising the following steps: the method comprises the following steps:
1) drying and crushing the agriculture and forestry wastes and the kitchen wastes, and pyrolyzing and carbonizing under an anaerobic or low-oxygen condition to obtain biomass charcoal for later use;
2) mixing the livestock and poultry manure and the sludge, uniformly stirring, adjusting the mixture to the initial total solid concentration of 6-12% by using clear water, and then carrying out anaerobic fermentation; drying and crushing the solid by-product obtained by anaerobic fermentation under natural conditions into 1-5mm crushed materials for later use;
3) pulverizing the wood processing residues and the edible fungus residues into crushed materials with the particle size of 0.5-2mm, adding 8-15 wt% of bran, uniformly mixing, adjusting the initial water content to 60% -70% by using clear water, and then performing composting fermentation; sieving the fertilizer obtained by fermentation with a 2mm sieve for later use;
4) the biomass charcoal, the anaerobic fermentation solid by-product and the fertilizer prepared in the steps 1), 2) and 3) are mixed according to the weight parts, and are stirred and mixed uniformly to obtain the biomass charcoal material for later use.
2. The method of claim 1 for reducing N in acid red soil 2 The preparation method of the biomass charcoal material with O emission is characterized by comprising the following steps: in the step 1), the agricultural and forestry wastes and the kitchen wastes are dried at the temperature of 80-100 ℃ and are crushed into 0.5-2mm crushed materials, and the pyrolysis carbonization temperature is 400-600 ℃.
3. The method for reducing N content in acidic red soil according to claim 1 2 The preparation method of the biomass charcoal material with O emission is characterized by comprising the following steps: in the step 2), the livestock and poultry manure and the sludge are mixed according to the weight ratio of 1-5: 1.
4. The method of claim 1 for reducing N in acid red soil 2 The preparation method of the biomass charcoal material with O emission is characterized by comprising the following steps: the anaerobic fermentation in the step 2) is normal-temperature anaerobic fermentation, and the fermentation time is 25-60 days.
5. The method of claim 1 for reducing N in acid red soil 2 The preparation method of the biomass charcoal material with O emission is characterized by comprising the following steps: in the step 3), the compost fermentation temperature is 50-70 ℃, and the fermentation time is 45-60 days.
6. Reduction of acid red soil N 2 O-emitting biomass charcoal material, characterized in that the N in the acid red soil is reduced by any one of claims 1 to 5 2 The preparation method of the biomass charcoal material with O emission.
7. The method of claim 6 for reducing N in acid red soil 2 The biomass charcoal material discharged by the O-shaped reactor is characterized by being prepared by uniformly stirring and mixing 30-60 parts of biomass charcoal, 20-40 parts of anaerobic fermentation solid byproducts and 20-40 parts of fertilizers.
8. Reduction of acid red soil N 2 The use method of the biomass charcoal material discharged by O is characterized by comprising the following steps: the biomass charcoal material is applied to the acid red soil, then the soil is turned, and the biomass charcoal material and the acid red soil are uniformly mixed.
9. The method for reducing N in acid red soil according to claim 8 2 The application method of the biomass charcoal material discharged by O is characterized in that the application amount of the biomass charcoal material is 500-2000 kg per mu.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111513862.0A CN115010549A (en) | 2021-12-13 | 2021-12-13 | Reduction of acid red soil N 2 O-discharged biomass charcoal material and preparation and use methods thereof |
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| CN202111513862.0A CN115010549A (en) | 2021-12-13 | 2021-12-13 | Reduction of acid red soil N 2 O-discharged biomass charcoal material and preparation and use methods thereof |
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Application publication date: 20220906 |