Compost fermentation process based on ODR microbial technology and gas deodorization method

Abstract

The invention discloses a compost fermentation process based on an ODR microbial technology and a gas deodorization method, relates to the technical field of compost fermentation processes, and aims to solve the problem of poor fermentation effect of compost in the fermentation process. By analyzing the concentrations of various key gases such as ammonia gas, hydrogen sulfide, methane, oxygen and carbon dioxide, main harmful gases possibly generated in the fermentation process and gases influencing the fermentation efficiency are covered, and detection indexes cover physical indexes, chemical indexes and biological indexes. The state of the fermentation process can be comprehensively evaluated from multiple dimensions, the accuracy and reliability of the evaluation result are ensured, multiple key monitoring parameters such as temperature, humidity, pH value, ammonia gas concentration, oxygen concentration and C / N ratio are covered, and the parameters can comprehensively reflect changes of microbial activity, substance conversion efficiency and environmental conditions in the fermentation process, so that the evaluation result is more accurate and reliable. Therefore, the monitoring accuracy and comprehensiveness are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of composting fermentation technology, in particular to a composting fermentation process and a gas deodorization method based on ODR microbial technology. Background Art

[0002] Composting is a process that converts organic waste into organic fertilizer.

[0003] Chinese patent document CN107082662B discloses a rapid composting and fermentation method, which comprises the following steps: adding compost material into a composting and fermentation mixer and stirring and mixing the compost material, wherein the carbon-nitrogen ratio of the compost material is 20-35 and the moisture content is 35%-50%; adding a microbial agent into the composting and fermentation mixer, wherein the weight ratio of the microbial agent to the compost material is 3.75-7.5 kg / t, controlling the rotor speed at 25-30 rpm, and stirring and fermenting continuously for 1-1.5 hours; adding the microbial agent again into the composting and fermentation mixer, wherein the weight ratio of the microbial agent to the compost material is 3.75-7.5 kg / t, controlling the rotor speed at 25-30 rpm, and stirring and fermenting continuously for 2.0-3 hours, and cooling to obtain organic fertilizer. Each batch of fermentation cycle only takes 3 to 4 hours, which effectively saves time, has a simple process, strong controllability, and extremely high production efficiency, and can effectively achieve large-scale production. Although the above patent document solves the problem of compost fermentation, the following problems still exist in actual operation:

[0004] 1. The collected compost raw materials were not effectively processed, and there was no targeted fermentation monitoring of the different fermentation stages of the compost raw materials, which resulted in abnormalities in the compost raw materials during the fermentation process that could not be handled in a timely manner.

[0005] 2. No further processing procedures are formulated for the fermented compost, resulting in reduced presentation and efficiency of the finished product.

[0006] 3. During the compost fermentation process, there is no targeted detection and treatment of the gases produced during the fermentation, and there is no effective quality assessment of the compost during the fermentation process, resulting in poor quality of the final product. Summary of the Invention

[0007] The purpose of the present invention is to provide a composting fermentation process and a gas deodorization method based on ODR microbial technology. By analyzing the concentrations of multiple key gases such as ammonia, hydrogen sulfide, methane, oxygen and carbon dioxide, the main harmful gases that may be produced during the fermentation process and the gases that affect the fermentation efficiency are covered. The detection indicators cover physical indicators, chemical indicators and biological indicators, and can comprehensively evaluate the status of the fermentation process from multiple dimensions to ensure the accuracy and reliability of the evaluation results. It covers multiple key monitoring parameters such as temperature, humidity, pH value, ammonia concentration, oxygen concentration and C / N ratio. These parameters can comprehensively reflect the microbial activity, material conversion efficiency and environmental conditions in the fermentation process, thereby ensuring the accuracy and comprehensiveness of monitoring, and can solve the problems in the existing technology.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] The composting fermentation process based on ODR microbial technology includes the following steps:

[0010] S1: Raw material preparation and processing: collect the compost raw materials, pre-treat the raw materials after collection, add auxiliary materials according to the properties of the raw materials and fermentation requirements, and obtain the raw material F to be fermented after the auxiliary materials are added. materials ;

[0011] S2: Initial fermentation control: F materials Monitor the initial stage of fermentation and treat the fermentation raw material F according to the monitoring results. materials Adjust the initial fermentation process;

[0012] S3: mid-term fermentation control: the raw material F materials The fermentation medium stage is monitored and the fermentation raw material F is treated according to the monitoring results. materials Adjust the mid-fermentation process;

[0013] S4: Final fermentation control: Fermentation raw materials F materials Monitor the final stage of fermentation and treat the fermentation raw material F according to the monitoring results. materials The final fermentation process is adjusted, and the fermented raw material F materials After the final fermentation process is adjusted, the target fermentation compost T is obtained. compost ;

[0014] S5: Compost material processing: the target fermentation compost T compost After crushing and screening, granulation and packaging are carried out, and standard fermentation compost S is obtained after granulation and packaging. compost .

[0015] Preferably, the compost raw materials are collected in S1, and after the collection is completed, the raw materials are pretreated. After the raw materials are pretreated, auxiliary materials are added according to the properties of the raw materials and fermentation requirements, including:

[0016] Collecting compost raw materials, including agricultural waste, kitchen waste, garden waste and food processing waste, and concentrating various raw materials into a composting site by mechanical or manual means;

[0017] After the composting raw materials are collected, they are pretreated. The raw material pretreatment process is as follows:

[0018] S101: First, remove impurities in the compost raw materials, including plastic, metal, glass and non-degradable substances;

[0019] S102: crushing the compost raw materials after removing impurities to a particle size of 5-10 cm;

[0020] S103: Testing the moisture content of the crushed compost raw materials. If the moisture content is not between 40% and 60%, drying the compost raw materials with excessive moisture by using hot air or natural drying to reduce the moisture content, and adding moisture to the dried compost raw materials.

[0021] After the pretreatment of the compost raw materials is completed, auxiliary materials are added, wherein the auxiliary materials include mushroom needles, peanut shells and crushed crop straw;

[0022] The proportion of auxiliary materials added is 10% to 30% of the compost raw materials;

[0023] After the auxiliary materials are added, the auxiliary materials are mixed with the compost raw materials using a mixer. Before the mixing and stirring, the ODR microbial agent is sprayed on the compost raw materials.

[0024] The pH value, carbon-nitrogen ratio (C / N ratio), and moisture content of the mixed compost raw materials were measured, wherein the C / N ratio ranged from 25:1 to 30:1, and the pH value ranged from 6.0 to 8.0;

[0025] The mixed compost materials are piled up to a height of 1.5 meters to 2 meters;

[0026] After the composting raw materials are piled up, the raw materials to be fermented F are obtained. materials .

[0027] Preferably, in S2, the raw material F to be fermented materials Monitor the initial stage of fermentation and treat the fermentation raw material F according to the monitoring results. materials Adjustments to the initial fermentation process include:

[0028] In the fermented raw material F materials After three days of fermentation, treat the fermentation raw material F materials Conduct monitoring;

[0029] Monitoring indicators include temperature monitoring parameters, humidity monitoring parameters, pH value monitoring parameters, ammonia concentration monitoring parameters, oxygen concentration monitoring parameters and C / N ratio monitoring parameters;

[0030] According to the treatment of fermentation raw materials F materials Monitor and adjust the fermentation;

[0031] When the temperature monitoring parameters are not between 45℃ and 60℃, adjust the temperature. When the temperature exceeds 60℃, turn the compost or add dry auxiliary materials. When the temperature is below 45℃, add compost raw materials or auxiliary materials.

[0032] When the humidity monitoring parameter is not between 40% and 60%, the humidity is adjusted. When the humidity exceeds 60%, the pile is turned or dry auxiliary materials are added; when the humidity is below 40%, water is sprayed;

[0033] When the pH monitoring parameter is lower than the preset pH value, add lime powder or other alkaline substances; when the pH monitoring parameter is higher than the preset pH value, add acidic substances until the pH monitoring parameter is within the preset pH value range;

[0034] When the ammonia concentration monitoring parameters exceed the normal ammonia release value, increase ventilation, turn the pile or add auxiliary materials rich in organic matter;

[0035] When the oxygen concentration monitoring parameter is lower than the normal oxygen release value, turn the pile or add high-permeability auxiliary materials;

[0036] When the C / N ratio monitoring parameter is higher than the preset C / N ratio, add auxiliary materials containing nitrogen source; when the C / N ratio monitoring parameter is lower than the preset C / N ratio, add auxiliary materials rich in nitrogen source;

[0037] The monitoring frequency in the early stage of fermentation is once a day

[0038] After fermentation adjustment, the raw material F to be fermented is completed materials Initial fermentation control.

[0039] Preferably, in S3, the raw material F to be fermented materials The fermentation medium stage is monitored and the fermentation raw material F is treated according to the monitoring results. materials Adjustments to the mid-fermentation process include:

[0040] In the fermented raw material F materials After seven days of fermentation, treat the fermentation raw material F materials Conduct monitoring and fermentation adjustments;

[0041] Raw material to be fermented F materials The monitoring indicators in the mid-fermentation stage are the same as those in the early fermentation stage;

[0042] Among them, the temperature monitoring parameter range is between 60℃-70℃, the pH value monitoring parameter range is between 6-8; the C / N ratio monitoring parameter range is between 20-30; the oxygen concentration monitoring parameter is not less than 18%;

[0043] The monitoring frequency in the middle stage of fermentation is once every 2 to 3 days;

[0044] After fermentation adjustment, the raw material F to be fermented is completed materials Mid-term fermentation control.

[0045] Preferably, in S4, the raw material F to be fermented materials Monitor the final stage of fermentation and treat the fermentation raw material F according to the monitoring results. materials Adjustments to the final fermentation process include:

[0046] In the fermented raw material F materials After 20 days of fermentation, treat the fermentation raw material F materials Conduct monitoring and fermentation adjustments;

[0047] Raw material to be fermented F materials The monitoring indicators in the final fermentation stage are the same as those in the mid-fermentation stage;

[0048] The monitoring frequency at the end of fermentation is once every 3-5 days;

[0049] Fermented raw material F at the end of fermentation materials The maturity stage is determined by the following criteria: the temperature monitoring parameter range is below 30℃; the C / N ratio reaches the range of 20-30; the raw material F to be fermented is materials The color is dark brown or black brown; and by monitoring the degradation rate of organic matter, humus content and the raw material F to be fermented materials The smell determines whether the final stable state has been reached;

[0050] At the same time, the fermented raw material F materials Reverse every two days;

[0051] After fermentation adjustment, the raw material F to be fermented is completed materials The final fermentation control is completed, and the fermented raw material F materials Marked as target fermentation compost T compost .

[0052] Preferably, in S5, the target fermentation compost T compostCrushing and screening are carried out, and granulation and packaging are carried out after the crushing and screening are completed, including:

[0053] First, the target compost T compost The crushing process is to crush the target fermentation compost T compost Use crusher to crush, target fermentation compost T compost The broken particles are between 1-5 cm;

[0054] Target fermentation compost T compost After the crushing process, the screening process is carried out, and the screening process is to use a screening machine to screen the target fermentation compost T after the crushing process. compost Screening is performed, wherein the aperture of the screen is between 1-3 cm, and after the screening is completed, the target fermentation compost T compost Granulate the target fermentation compost T compost Return to the fermentation stage to continue processing.

[0055] Preferably, in S5, the target fermentation compost T compost Crushing and screening are carried out, and after the crushing and screening are completed, granulation and packaging are carried out, which also includes:

[0056] The screened target fermentation compost T compost Granulation is carried out, and the granulation process is as follows: Target fermentation compost T compost Before granulation, the humidity is adjusted to be between 20% and 30%. After the humidity adjustment is completed, the ingredients are added, including adhesives, preservatives and auxiliary materials.

[0057] Use the pelletizer to add the ingredients to the target fermentation compost T compost Granulation is performed, wherein the target fermentation compost T after granulation is compost The diameter is between 3-5mm;

[0058] Target fermentation compost T compost After granulation is completed, drying is performed;

[0059] The target fermentation compost T after drying compost Set the weight of each package, which is between 10-50 kg. After the weight setting is completed, an automatic packaging machine is used to automatically perform bagging, metering and sealing operations;

[0060] After packaging, standard fermentation compost S is obtained compost .

[0061] Gas deodorization methods in composting fermentation processes based on ODR microbial technology include:

[0062] S6: Gas treatment in the fermentation stage: Based on the raw material F to be fermentedmaterials Gas detection is performed during the fermentation process of steps S2-S4, and the fermentation raw material F is treated according to the gas detection results. materials Deodorization is carried out during the fermentation process;

[0063] S7: Quality inspection and evaluation: Based on the raw material to be fermented F materials During the fermentation process of steps S2-S4, sampling and testing are performed, and the fermentation raw material F is treated according to the sampling and testing results. materials The fermentation process is adjusted accordingly, and the raw material F to be fermented is materials Fermentation quality assessment.

[0064] Preferably, for S6 based on the fermented raw material F materials Gas detection is performed during the fermentation process of steps S2-S4, and the fermentation raw material F is treated according to the gas detection results. materials The fermentation process is used for deodorization, including:

[0065] In the fermented raw material F materials During the initial, middle and final stages of fermentation, a gas sampler is used to sample gas. Gas sampling is performed every 2 to 3 days during the initial and middle stages of fermentation, and every 3 to 5 days during the final stages of fermentation.

[0066] After gas sampling, the fermentation raw material F materials Analyze the concentrations of ammonia, hydrogen sulfide, methane, oxygen and carbon dioxide in the gas;

[0067] Deodorization treatment is carried out according to the analysis results, and the deodorization treatment includes chemical deodorization, biological deodorization, ventilation deodorization and adsorbent deodorization;

[0068] Among them, when the ammonia concentration exceeds 20ppm or the hydrogen sulfide concentration exceeds 10ppm, chemical deodorization or biological deodorization is adopted; when the oxygen concentration is lower than 15% or the carbon dioxide concentration exceeds 2%, ventilation deodorization is adopted; when the methane concentration exceeds 1000ppm, oxygen supply is carried out and adsorbent deodorization is carried out.

[0069] Preferably, for S7 based on the raw material F to be fermented materials During the fermentation process of steps S2-S4, sampling and testing are performed, and the fermentation raw material F is treated according to the sampling and testing results. materials The fermentation process is adjusted accordingly, and the raw material F to be fermented is materials Fermentation quality assessment, including:

[0070] In the fermented raw material F materialsDuring the initial, middle and final stages of fermentation, a sterile sampler is used to take samples for testing. In the initial and middle stages of fermentation, sampling is performed every 2 to 3 days, and in the final stages of fermentation, sampling is performed every 3 to 5 days.

[0071] Sampling and testing indicators include physical indicators, chemical indicators and biological indicators. Physical indicators include moisture content, temperature, particle size distribution, color and odor; chemical indicators include pH value, conductivity, organic carbon, total nitrogen, C / N ratio and ammonia nitrogen; biological indicators include microbial count, enzyme activity and seed germination rate;

[0072] Comprehensively evaluate the parameter standards of physical indicators, chemical indicators and biological indicators;

[0073] According to the comprehensive evaluation results, the corresponding indicators are adjusted, and the raw materials to be fermented are F according to the abnormality of the comprehensive evaluation. materials Evaluation of compost fermentation quality at the early, middle and final stages of fermentation.

[0074] Compared with the prior art, the present invention has the following beneficial effects:

[0075] 1. The composting fermentation process and gas deodorization method based on ODR microbial technology provided by the present invention can decompose the organic matter in the compost raw materials by spraying ODR microbial agents on the compost raw materials, accelerate the conversion into stable humus, thereby shortening the compost maturation cycle. The ODR microbial agents help to increase the organic matter content and nutritional value of the compost, making the final product more suitable as a soil conditioner or fertilizer.

[0076] 2. The composting fermentation process and gas deodorization method based on ODR microbial technology provided by the present invention cover multiple key monitoring parameters such as temperature, humidity, pH value, ammonia concentration, oxygen concentration and C / N ratio. These parameters can comprehensively reflect the changes in microbial activity, material conversion efficiency and environmental conditions during the fermentation process, thereby ensuring the accuracy and comprehensiveness of monitoring. Specific adjustment measures are proposed based on the monitoring results. These measures can timely and effectively intervene in problems arising during the fermentation process, ensure the stability and efficiency of the fermentation process, and the consistency of indicators also facilitates the comparison and analysis of historical data, which helps to better understand the dynamic changes of the fermentation process. The proposed criteria for determining the maturity stage are scientific and operational, and can accurately reflect the fermentation status of the raw materials to be fermented.

[0077] 3. The composting fermentation process and gas deodorization method based on ODR microbial technology provided by the present invention analyze the concentrations of multiple key gases such as ammonia, hydrogen sulfide, methane, oxygen and carbon dioxide, covering the main harmful gases that may be produced during the fermentation process and the gases that affect the fermentation efficiency. The detection indicators cover physical indicators, chemical indicators and biological indicators, and can comprehensively evaluate the status of the fermentation process from multiple dimensions to ensure the accuracy and reliability of the evaluation results. BRIEF DESCRIPTION OF THE DRAWINGS

[0078] Figure 1 Schematic diagram of the composting fermentation process steps of the present invention;

[0079] Figure 2 Schematic diagram of gas deodorization in the compost fermentation process of the present invention. DETAILED DESCRIPTION

[0080] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0081] In order to solve the problem in the prior art that the collected compost materials are not effectively processed and the different fermentation stages of the compost materials are not monitored, which leads to the problem that the compost materials cannot be processed in time when they are abnormal during the fermentation process, please refer to Figure 1 , this embodiment provides the following technical solutions:

[0082] The composting fermentation process based on ODR microbial technology includes the following steps:

[0083] S1: Raw material preparation and processing: collect the compost raw materials, pre-treat the raw materials after collection, add auxiliary materials according to the properties of the raw materials and fermentation requirements, and obtain the raw material F to be fermented after the auxiliary materials are added. materials ;

[0084] Among them, the proportion of auxiliary materials added is 10% to 30% of the compost raw materials. This proportion can not only meet the needs of microbial activity, but also will not excessively dilute the nutrients in the compost raw materials.

[0085] S2: Initial fermentation control: F materials Monitor the initial stage of fermentation and treat the fermentation raw material F according to the monitoring results. materials Adjust the initial fermentation process;

[0086] Among them, specific adjustment measures were proposed based on the monitoring results. These measures can provide timely and effective intervention for problems that arise during the fermentation process, ensuring the stability and efficiency of the fermentation process;

[0087] S3: mid-term fermentation control: the raw material F materials The fermentation medium stage is monitored and the fermentation raw material F is treated according to the monitoring results. materials Adjust the mid-fermentation process;

[0088] Among them, the monitoring indicators in the mid-fermentation stage are consistent with those in the early fermentation stage, which simplifies the monitoring process and reduces the operational complexity caused by indicator changes;

[0089] S4: Final fermentation control: Fermentation raw materials F materials Monitor the final stage of fermentation and treat the fermentation raw material F according to the monitoring results. materials The final fermentation process is adjusted, and the fermented raw material F materials After the final fermentation process is adjusted, the target fermentation compost T is obtained. compost ;

[0090] Among them, the proposed criteria for determining the maturity stage are scientific and operational, and can accurately reflect the fermentation status of the raw materials to be fermented. It not only helps to determine whether the fermentation is complete, but also provides guidance for subsequent fermentation adjustments.

[0091] S5: Compost material processing: the target fermentation compost T compost After crushing and screening, granulation and packaging are carried out, and standard fermentation compost S is obtained after granulation and packaging. compost ;

[0092] Among them, the use of mechanical equipment such as crushers, screeners and granulators for automated processing has greatly improved production efficiency and reduced the tediousness and errors of manual operations.

[0093] In S1, the compost raw materials are collected and pre-treated. After the pre-treatment, auxiliary materials are added according to the properties of the raw materials and fermentation requirements, including:

[0094] Collecting compost raw materials, including agricultural waste, kitchen waste, garden waste and food processing waste, and concentrating various raw materials into a composting site by mechanical or manual means;

[0095] After the composting raw materials are collected, they are pre-processed. The raw material pre-processing process is as follows:

[0096] S101: First, remove impurities in the compost raw materials, including plastic, metal, glass and non-degradable substances;

[0097] S102: crushing the compost raw materials after removing impurities to a particle size of 5-10 cm;

[0098] S103: Testing the moisture content of the crushed compost raw materials. If the moisture content is not between 40% and 60%, drying the compost raw materials with excessive moisture by using hot air or natural drying to reduce the moisture content, and adding moisture to the dried compost raw materials.

[0099] After the pretreatment of the compost raw materials is completed, auxiliary materials are added, wherein the auxiliary materials include mushroom needles, peanut shells and crushed crop straw;

[0100] ~The proportion of auxiliary materials added is 10% to 30% of the compost raw materials;

[0101] After the auxiliary materials are added, the auxiliary materials are mixed with the compost raw materials using a mixer. Before the mixing and stirring, the ODR microbial agent is sprayed on the compost raw materials.

[0102] The pH value, carbon-nitrogen ratio (C / N ratio) and moisture content of the mixed and stirred compost raw materials were measured, wherein the C / N ratio ranged from 25:1 to 30:1 and the pH value ranged from 6.0 to 8.0;

[0103] The mixed compost materials are piled up to a height of 1.5 meters to 2 meters;

[0104] After the composting raw materials are piled up, the raw materials to be fermented F are obtained. materials .

[0105] Specifically, by removing impurities such as plastic, metal, glass and non-degradable substances, the potential pollution of these substances to the environment during the composting process is avoided, and the purity of the compost product is also guaranteed. Crushing the raw materials to a particle size of 5-10 cm is beneficial to increasing the surface area of ​​the raw materials, promoting the attachment and decomposition of microorganisms, and improving the composting efficiency. Crushing the raw materials to a particle size of 5-10 cm is beneficial to increasing the surface area of ​​the raw materials, promoting the attachment and decomposition of microorganisms, and improving the composting efficiency. The addition of auxiliary materials such as needles, peanut shells, crushed crop straw and ODR microbial agents not only improves the composting efficiency, but also improves the composting efficiency. It provides additional carbon and nitrogen sources, and also introduces beneficial microbial communities, which helps to accelerate the decomposition of organic matter in the composting process. The proportion of auxiliary materials added is 10% to 30% of the compost raw materials. This proportion can not only meet the needs of microbial activity, but also will not overly dilute the nutrients in the compost raw materials. The auxiliary materials are mixed and stirred with the compost raw materials using a mixer to ensure the uniformity of the compost raw materials, which is conducive to the uniform distribution and activity of microorganisms throughout the composting process. The pH value, carbon-nitrogen ratio (C / N ratio) and moisture content of the mixed and stirred compost raw materials are measured, and adjustments are made based on the measurement results. To ensure that the compost raw materials are in the best fermentation conditions, the mixed compost raw materials are piled up with a stacking height of 1.5 meters to 2 meters. This height is convenient for ventilation and heat dissipation, and is conducive to the uniform fermentation of microorganisms. Through scientific raw material collection, meticulous pretreatment, reasonable auxiliary material addition, precise parameter control and reasonable stacking management, the quality and efficiency of composting are effectively improved, and the resource utilization of waste and sustainable development of the environment are achieved. At the same time, spraying ODR microbial agents on the compost raw materials can decompose the organic matter in the compost raw materials and accelerate the conversion into stable humus, thereby Shorten the compost maturation cycle. ODR microbial agents help increase the organic matter content and nutritional value of compost, making the final product more suitable as a soil conditioner or fertilizer. ODR microbial agents consume carbon sources and release nitrogen during the decomposition process, which helps adjust the C / N ratio of the compost to an appropriate range (25:1-30:1), promote microbial activity and stabilization of organic matter. ODR microbial agents can produce or consume certain acidic or alkaline substances, which helps maintain the pH value of the compost within the most suitable range (6.0-8.0), which is beneficial to the growth of microorganisms and the composting process.

[0106] In S2, the raw material F to be fermented materials Monitor the initial stage of fermentation and treat the fermentation raw material F according to the monitoring results. materials Adjustments to the initial fermentation process include:

[0107] In the fermented raw material F materials After three days of fermentation, treat the fermentation raw material F materials Conduct monitoring;

[0108] Monitoring indicators include temperature monitoring parameters, humidity monitoring parameters, pH value monitoring parameters, ammonia concentration monitoring parameters, oxygen concentration monitoring parameters and C / N ratio monitoring parameters;

[0109] According to the treatment of fermentation raw materials F materials Monitor and adjust the fermentation;

[0110] When the temperature monitoring parameters are not between 45℃ and 60℃, adjust the temperature. When the temperature exceeds 60℃, turn the compost or add dry auxiliary materials. When the temperature is below 45℃, add compost raw materials or auxiliary materials.

[0111] When the humidity monitoring parameter is not between 40% and 60%, the humidity is adjusted. When the humidity exceeds 60%, the pile is turned or dry auxiliary materials are added; when the humidity is below 40%, water is sprayed;

[0112] When the pH monitoring parameter is lower than the preset pH value, add lime powder or other alkaline substances; when the pH monitoring parameter is higher than the preset pH value, add acidic substances until the pH monitoring parameter is within the preset pH value range;

[0113] When the ammonia concentration monitoring parameters exceed the normal ammonia release value, increase ventilation, turn the pile or add auxiliary materials rich in organic matter;

[0114] When the oxygen concentration monitoring parameter is lower than the normal oxygen release value, turn the pile or add high-permeability auxiliary materials;

[0115] When the C / N ratio monitoring parameter is higher than the preset C / N ratio, add auxiliary materials containing nitrogen source; when the C / N ratio monitoring parameter is lower than the preset C / N ratio, add auxiliary materials rich in nitrogen source;

[0116] The monitoring frequency in the early stage of fermentation is once a day

[0117] After fermentation adjustment, the raw material F to be fermented is completed materials Initial fermentation control.

[0118] Specifically, it covers multiple key monitoring parameters such as temperature, humidity, pH value, ammonia concentration, oxygen concentration, and C / N ratio. These parameters can comprehensively reflect the changes in microbial activity, material conversion efficiency, and environmental conditions during the fermentation process, thereby ensuring the accuracy and comprehensiveness of monitoring. Based on the monitoring results, specific adjustment measures are proposed, such as turning the compost, adding dry auxiliary materials or water, adding lime powder or acidic substances, and increasing ventilation. These measures can provide timely and effective intervention for problems that arise during the fermentation process, ensuring the stability and efficiency of the fermentation process. Through regular (once a day) monitoring, the program can promptly identify potential problems in the early stages of fermentation and take preventive measures to intervene, avoiding the adverse effects of the deterioration of the problems on the fermentation process and improving the fermentation success rate and product quality. Adding compost raw materials or auxiliary materials, spraying water, etc. are all based on the specific needs of the fermentation process, avoiding waste of resources, while improving the utilization rate of raw materials and fermentation efficiency. By precisely controlling the environmental conditions during the fermentation process, such as temperature, humidity, and gas concentration, the program helps to reduce the emission of harmful gases and reduce pollution to the environment, in line with the concept of sustainable development.

[0119] In S3, the raw material F to be fermented materials The fermentation medium stage is monitored and the fermentation raw material F is treated according to the monitoring results. materials Adjustments to the mid-fermentation process include:

[0120] In the fermented raw material F materials After seven days of fermentation, treat the fermentation raw material F materials Conduct monitoring and fermentation adjustments;

[0121] Raw material to be fermented F materials The monitoring indicators in the mid-fermentation stage are the same as those in the early fermentation stage;

[0122] Among them, the temperature monitoring parameter range is between 60℃-70℃, the pH value monitoring parameter range is between 6-8; the C / N ratio monitoring parameter range is between 20-30; the oxygen concentration monitoring parameter is not less than 18%;

[0123] The monitoring frequency in the middle stage of fermentation is once every 2 to 3 days;

[0124] After fermentation adjustment, the raw material F to be fermented is completed materials Mid-term fermentation control.

[0125] Specifically, initial monitoring and adjustments are performed on the seventh day of fermentation, ensuring that the fermentation process receives attention at critical moments. Timely monitoring can quickly identify anomalies or deviations from expectations during the fermentation process, allowing operators to quickly implement adjustments and ensure the stability and efficiency of the fermentation process. Monitoring indicators during the mid-stage fermentation remain consistent with those during the initial stage, simplifying the monitoring process and reducing operational complexity caused by indicator changes. Furthermore, consistent indicators facilitate comparison and analysis of historical data, helping to better understand the dynamics of the fermentation process. Monitoring every two to three days ensures timely monitoring while avoiding the operational burden of overly frequent monitoring. This frequency allows for the capture of important changes in the fermentation process without disrupting the normal fermentation process due to overly frequent monitoring. Through these monitoring and adjustment measures, the solution achieves efficient control of the mid-stage fermentation of the fermentation material. This helps reduce waste and losses during the fermentation process, improving raw material utilization and fermentation product yield.

[0126] In S4, the raw material F to be fermented materials Monitor the final stage of fermentation and treat the fermentation raw material F according to the monitoring results. materials Adjustments to the final fermentation process include:

[0127] In the fermented raw material F materials After 20 days of fermentation, treat the fermentation raw material F materials Conduct monitoring and fermentation adjustments;

[0128] Raw material to be fermented F materials The monitoring indicators in the final fermentation stage are the same as those in the mid-fermentation stage;

[0129] The monitoring frequency at the end of fermentation is once every 3-5 days;

[0130] Fermented raw material F at the end of fermentation materials The maturity stage is determined by the following criteria: the temperature monitoring parameter range is below 30℃; the C / N ratio reaches the range of 20-30; the raw material F to be fermented is materials The color is dark brown or black brown; and by monitoring the degradation rate of organic matter, humus content and the raw material F to be fermented materials The smell determines whether the final stable state has been reached;

[0131] At the same time, the fermented raw material F materials Reverse every two days;

[0132] After fermentation adjustment, the raw material F to be fermented is completed materials The final fermentation control is completed, and the fermented raw material F materialsMarked as target fermentation compost T compost .

[0133] Specifically, the proposal proposes monitoring and adjusting the fermentation feedstock at 20 days of fermentation, demonstrating precise control of the fermentation process. This timely monitoring allows for rapid identification of potential fermentation issues, such as excessive temperatures and imbalanced C / N ratios, allowing for targeted adjustments. The consistent use of monitoring indicators (consistent monitoring indicators during the final and mid-stages of fermentation) ensures continuity and stability throughout the fermentation process, preventing runaway fermentation caused by sudden changes in monitoring indicators. Monitoring every 3-5 days ensures real-time data while avoiding the increased costs associated with overly frequent monitoring. This frequency of monitoring facilitates timely detection of subtle changes in the fermentation process, providing reliable data support for adjusting fermentation conditions. The proposed criteria for determining the maturity stage (temperature, C / N ratio, color, etc.) are scientifically sound and practical, accurately reflecting the fermentation status of the fermentation feedstock. These criteria not only help determine fermentation completion but also provide guidance for subsequent fermentation adjustments. In addition to basic maturity criteria, the proposal also proposes monitoring organic matter degradation rate, humus content, and odor to determine whether the fermentation feedstock has reached its final stable state. These indicators can more comprehensively reflect the quality and stability of fermentation products and provide more basis for the optimization of the fermentation process. The fermented raw materials in the mature stage are reversed every two days, which helps to promote the uniformity and air permeability of the fermentation products and improve the fermentation efficiency and quality.

[0134] In order to solve the problem in the prior art that there is no further processing process for the fermented compost, which leads to the reduction of the presentation effect and efficiency of the finished product, please refer to Figure 1 , this embodiment provides the following technical solutions:

[0135] For S5, the target fermentation compost T compost Crushing and screening are carried out, and granulation and packaging are carried out after the crushing and screening are completed, including:

[0136] First, the target compost T compost The crushing process is to crush the target fermentation compost T compost Use crusher to crush, target fermentation compost T compost The broken particles are between 1-5 cm;

[0137] Target fermentation compost T compost After the crushing process, the screening process is carried out, and the screening process is to use a screening machine to screen the target fermentation compost T after the crushing process. compost Screening is performed, wherein the aperture of the screen is between 1-3 cm, and after the screening is completed, the target fermentation compost T compostGranulate the target fermentation compost T compost Return to the fermentation stage to continue processing.

[0138] The screened target fermentation compost T compost Granulation is carried out, and the granulation process is as follows: Target fermentation compost T compost Before granulation, the humidity is adjusted to be between 20% and 30%. After the humidity adjustment is completed, the ingredients are added, including adhesives, preservatives and auxiliary materials.

[0139] Use the pelletizer to add the ingredients to the target fermentation compost T compost Granulation is performed, wherein the target fermentation compost T after granulation is compost The diameter is between 3-5mm;

[0140] Target fermentation compost T compost After granulation is completed, drying is performed;

[0141] The target fermentation compost T after drying compost Set the weight of each package, which is between 10-50 kg. After the weight setting is completed, an automatic packaging machine is used to automatically perform bagging, metering and sealing operations;

[0142] After packaging, standard fermentation compost S is obtained compost .

[0143] Specifically, the crushing process granulates the target fermentation compost, controlling the particle size to between 1 and 5 cm, which helps improve the efficiency of subsequent processing and product quality. The screening process further selects particles of appropriate size through a sieve with an aperture of 1-3 cm, ensuring that the material entering the granulation stage has a relatively uniform particle size distribution, thereby improving the uniformity and stability of the final product. Larger particles that do not pass through the sieve are returned to the fermentation stage for further processing, which avoids resource waste and ensures that all materials are effectively utilized. The humidity adjustment and ingredient addition steps before granulation optimize the physical and chemical properties of the compost by precisely controlling the humidity and adding necessary auxiliary materials, improving the fertilizer efficiency and use value of the compost. The use of mechanical equipment such as crushers, screeners, and granulators for automated processing greatly improves production efficiency and reduces the tediousness and errors of manual operations. The use of automatic packaging machines realizes the automated operations of bagging, metering, and sealing, further improving the overall automation level and work efficiency of the production line. The diameter of the target fermentation compost after granulation is controlled between 3 and 5 mm, which is convenient for storage and transportation, reducing the occupied space and transportation costs. The drying process ensures the compost has an appropriate moisture content, preventing problems such as mold and deterioration caused by excessive moisture. Each package is weighted between 10 and 50 kg, making it convenient for users to choose different weights based on their needs, while also facilitating handling and use. Through meticulous processing and packaging, the resulting standard fermented compost is neatly presented and of stable quality, enhancing the product's image and market competitiveness.

[0144] In order to solve the problem in the prior art that the gas generated during the composting process is not detected and treated in a targeted manner, and the quality of the compost during the fermentation process is not effectively evaluated, which leads to poor quality of the final product, please refer to Figure 1 , this embodiment provides the following technical solutions:

[0145] Gas deodorization methods in composting fermentation processes based on ODR microbial technology include:

[0146] S6: Gas treatment in the fermentation stage: Based on the raw material F to be fermented materials Gas detection is performed during the fermentation process of steps S2-S4, and the fermentation raw material F is treated according to the gas detection results. materials Deodorization is carried out during the fermentation process;

[0147] Among them, through reasonable gas detection and deodorization treatment, the emission of harmful gases is reduced, the environment is protected, and unnecessary energy consumption and treatment costs are avoided;

[0148] S7: Quality inspection and evaluation: Based on the raw material to be fermented F materials During the fermentation process of steps S2-S4, sampling and testing are performed, and the fermentation raw material F is treated according to the sampling and testing results.materials The fermentation process is adjusted accordingly, and the raw material F to be fermented is materials Fermentation quality assessment;

[0149] Among them, the detection indicators cover physical indicators, chemical indicators and biological indicators, which can comprehensively evaluate the status of the fermentation process from multiple dimensions and ensure the accuracy and reliability of the evaluation results.

[0150] For S6 based on the fermented raw material F materials Gas detection is performed during the fermentation process of steps S2-S4, and the fermentation raw material F is treated according to the gas detection results. materials The fermentation process is used for deodorization, including:

[0151] In the fermented raw material F materials During the initial, middle and final stages of fermentation, a gas sampler is used to sample gas. Gas sampling is performed every 2 to 3 days during the initial and middle stages of fermentation, and every 3 to 5 days during the final stages of fermentation.

[0152] After gas sampling, the fermentation raw material F materials Analyze the concentrations of ammonia, hydrogen sulfide, methane, oxygen and carbon dioxide in the gas;

[0153] Deodorization treatment is carried out according to the analysis results, and the deodorization treatment includes chemical deodorization, biological deodorization, ventilation deodorization and adsorbent deodorization;

[0154] Among them, when the ammonia concentration exceeds 20ppm or the hydrogen sulfide concentration exceeds 10ppm, chemical deodorization or biological deodorization is adopted; when the oxygen concentration is lower than 15% or the carbon dioxide concentration exceeds 2%, ventilation deodorization is adopted; when the methane concentration exceeds 1000ppm, oxygen supply is carried out and adsorbent deodorization is carried out.

[0155] Specifically, by setting different gas sampling frequencies in different fermentation stages (early, middle, and late stages), the continuity and pertinence of gas detection are ensured. This refined management can promptly detect changes in gas composition during the fermentation process, provide data support for timely deodorization measures, and effectively avoid the accumulation and emission of malodorous gases. The concentrations of multiple key gases such as ammonia, hydrogen sulfide, methane, oxygen, and carbon dioxide are analyzed, covering the main harmful gases that may be produced during the fermentation process and gases that affect fermentation efficiency. Comprehensive gas analysis helps to accurately judge the fermentation status and provides a scientific basis for formulating appropriate deodorization strategies. According to the gas analysis results, the plan adopts a variety of deodorization methods (chemical deodorization, biological deodorization, ventilation deodorization, adsorbent deodorization), and sets specific treatment thresholds for different gas concentrations. This flexible treatment approach not only effectively removes harmful gases but also adjusts treatment intensity based on actual conditions, avoiding unnecessary resource waste. When ammonia or hydrogen sulfide concentrations exceed standards, chemical or biological deodorization is used to directly target the source of the malodorous gases. When oxygen concentrations are low or carbon dioxide concentrations are high, ventilation deodorization is used to improve the fermentation environment and increase fermentation efficiency. When methane concentrations are too high, oxygen supply and adsorbent deodorization ensure safety while effectively reducing methane emissions. This targeted treatment strategy significantly improves deodorization efficiency and effectiveness. Through appropriate gas detection and deodorization treatment, it reduces harmful gas emissions, protects the environment, and avoids unnecessary energy consumption and treatment costs, achieving a win-win situation for both economic and environmental benefits.

[0156] For S7 based on the fermented raw material F materials During the fermentation process of steps S2-S4, sampling and testing are performed, and the fermentation raw material F is treated according to the sampling and testing results. materials The fermentation process is adjusted accordingly, and the raw material F to be fermented is materials Fermentation quality assessment, including:

[0157] In the fermented raw material F materials During the initial, middle and final stages of fermentation, a sterile sampler is used to take samples for testing. In the initial and middle stages of fermentation, sampling is performed every 2 to 3 days, and in the final stages of fermentation, sampling is performed every 3 to 5 days.

[0158] Sampling and testing indicators include physical indicators, chemical indicators and biological indicators. Physical indicators include moisture content, temperature, particle size distribution, color and odor; chemical indicators include pH value, conductivity, organic carbon, total nitrogen, C / N ratio and ammonia nitrogen; biological indicators include microbial count, enzyme activity and seed germination rate;

[0159] Comprehensively evaluate the parameter standards of physical indicators, chemical indicators and biological indicators;

[0160] According to the comprehensive evaluation results, the corresponding indicators are adjusted, and the raw materials to be fermented are F according to the abnormality of the comprehensive evaluation. materials Evaluation of compost fermentation quality at the early, middle and final stages of fermentation.

[0161] Specifically, sampling and testing are conducted every 2-3 days during the early and middle stages of fermentation, and every 3-5 days at the end of fermentation. This frequency of sampling allows for timely detection of changes in the fermentation process, providing data support for timely adjustments. It can track the fermentation process in real time, ensuring that fermentation conditions are always maintained at optimal levels, and reducing the risk of fermentation failure or quality degradation due to improper conditions. The testing indicators cover physical indicators (moisture content, temperature, particle size distribution, color, and odor), chemical indicators (pH, conductivity, organic carbon, total nitrogen, C / N ratio, and ammonia nitrogen), and biological indicators (microbial count, enzyme activity, and seed germination rate). It can comprehensively assess the status of the fermentation process from multiple dimensions to ensure the accuracy and reliability of the assessment results. The parameter standards of physical indicators, chemical indicators, and biological indicators are comprehensively evaluated, and corresponding indicators are adjusted based on the assessment results. The mutual influence between various indicators can be comprehensively considered to ensure the scientific and effective nature of the adjustment measures. The compost fermentation quality of the fermented raw materials is assessed at the early, middle, and end stages of fermentation based on the degree of abnormality in the comprehensive assessment. It can quantitatively assess the quality of the fermentation process, providing strong support for further optimization of the fermentation process.

[0162] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0163] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions, and alterations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. The composting fermentation process based on ODR microbial technology is characterized by: The steps include: S1: Raw material preparation and processing: collect the compost raw materials, pre-treat the raw materials after collection, add auxiliary materials according to the properties of the raw materials and fermentation requirements after pre-treatment, and obtain the raw material F to be fermented after the auxiliary materials are added. materials ; S2: Initial fermentation control: The raw material F materials The initial fermentation stage is monitored, and the fermentation raw material F is treated according to the monitoring results. materials Adjust the initial fermentation process; S3: Mid-term fermentation control: The raw material F materials The fermentation medium stage is monitored and the fermentation raw material F is treated according to the monitoring results. materials Adjust the mid-fermentation process; S4: Final fermentation control: The fermented raw material F materials The fermentation final stage is monitored, and the fermentation raw material F is treated according to the monitoring results. materials The final fermentation process is adjusted, and the fermented raw material F materials After the final fermentation process is adjusted, the target fermentation compost T is obtained. compost ; S5: Compost material processing: Target fermentation compost T compost The crushing and screening process is carried out, and after the crushing and screening process is completed, granulation and packaging are carried out, and after the granulation and packaging are completed, standard fermentation compost S is obtained. compost。 2. The composting fermentation process based on ODR microbial technology according to claim 1, characterized in that: In S1, the compost raw materials are collected and pre-treated. After the pre-treatment, auxiliary materials are added according to the properties of the raw materials and fermentation requirements, including: Collecting compost raw materials, including agricultural waste, kitchen waste, garden waste and food processing waste, and collecting various raw materials to a composting site by mechanical or manual means; After the composting raw materials are collected, they are pretreated. The raw material pretreatment process is as follows: S101: first remove impurities in the compost raw materials, including plastics, metals, glass and non-degradable substances; S102: crushing the compost raw materials after the impurities are removed, and the crushing particle size reaches 5-10 cm; S103: testing the moisture content of the crushed compost raw materials. When the moisture content is not between 40% and 60%, drying the compost raw materials with excessive humidity, reducing the moisture content by hot air or natural drying, and adding moisture to the dried compost raw materials. After the pretreatment of the compost raw materials is completed, auxiliary materials are added, wherein the auxiliary materials include mushroom needles, peanut shells and crushed crop straw; The proportion of auxiliary materials added is 10% to 30% of the compost raw materials; After the auxiliary materials are added, the auxiliary materials are mixed and stirred with the compost raw materials by using a mixer, wherein before the mixing and stirring, the ODR microbial agent is sprayed on the compost raw materials; The pH value, carbon-nitrogen ratio (C / N ratio) and moisture content of the mixed and stirred compost raw materials are measured, wherein the C / N ratio ranges from 25:1 to 30:1, and the pH value ranges from 6.0 to 8.0; The mixed and stirred compost raw materials are piled up at a height of 1.5 meters to 2 meters; After the composting raw materials are piled up, the raw materials to be fermented F are obtained. materials .

3. The composting fermentation process based on ODR microbial technology according to claim 2, characterized in that: In S2, the raw material F to be fermented materials The initial fermentation stage is monitored, and the fermentation raw material F is treated according to the monitoring results. materials Adjustments to the initial fermentation process include: In the fermented raw material F materials After three days of fermentation, treat the fermentation raw material F materials Conduct monitoring; Monitoring indicators include temperature monitoring parameters, humidity monitoring parameters, pH value monitoring parameters, ammonia concentration monitoring parameters, oxygen concentration monitoring parameters and C / N ratio monitoring parameters; According to the treatment of fermentation raw materials F materials Monitor and adjust the fermentation; When the temperature monitoring parameter is not between 45℃-60℃, adjust the temperature. When the temperature exceeds 60℃, turn the compost or add dry auxiliary materials. When the temperature is below 45℃, add compost raw materials or auxiliary materials. When the humidity monitoring parameter is not between 40% and 60%, adjust the humidity. When the humidity exceeds 60%, turn the pile or add dry auxiliary materials; when the humidity is below 40%, spray water; When the pH monitoring parameter is lower than the preset pH value, lime powder or other alkaline substances are added; when the pH monitoring parameter is higher than the preset pH value, acidic substances are added until the pH monitoring parameter is within the preset pH value range; When the monitoring parameters of ammonia concentration exceed the normal ammonia release value, increase ventilation, turn the compost or add auxiliary materials rich in organic matter; When the oxygen concentration monitoring parameter is lower than the normal oxygen release value, turn the pile or add high-permeability auxiliary materials; When the C / N ratio monitoring parameter is higher than the preset C / N ratio, add auxiliary materials containing nitrogen source; when the C / N ratio monitoring parameter is lower than the preset C / N ratio, add auxiliary materials rich in nitrogen source; The monitoring frequency in the early stage of fermentation is once a day After fermentation adjustment, the raw material F to be fermented is completed materials Initial fermentation control.

4. The composting fermentation process based on ODR microbial technology according to claim 3, characterized in that: In S3, the fermented raw material F materials The fermentation medium stage is monitored and the fermentation raw material F is treated according to the monitoring results. materials Adjustments to the mid-term fermentation process include: In the fermented raw material F materials After seven days of fermentation, treat the fermentation raw material F materials Conduct monitoring and fermentation adjustments; Raw material to be fermented F materials The monitoring indicators in the mid-fermentation stage are consistent with those in the initial fermentation stage; Among them, the temperature monitoring parameter range is between 60℃ and 70℃, the pH value monitoring parameter range is between 6-8; the C / N ratio monitoring parameter range is between 20-30; the oxygen concentration monitoring parameter is not less than 18%; The monitoring frequency in the middle stage of fermentation is once every 2 to 3 days; After fermentation adjustment, the raw material F to be fermented is completed materials Mid-term fermentation control.

5. The composting fermentation process based on ODR microbial technology according to claim 4, characterized in that: In S4, the raw material F to be fermented materials The fermentation final stage is monitored, and the fermentation raw material F is treated according to the monitoring results. materials Adjustments to the final fermentation process include: In the fermented raw material F materials After 20 days of fermentation, treat the fermentation raw material F materials Conduct monitoring and fermentation adjustments; Raw material to be fermented F materials The monitoring indicators in the final fermentation stage are consistent with those in the mid-fermentation stage; The monitoring frequency at the end of fermentation is once every 3-5 days; Raw material F to be fermented at the end of fermentation materials The maturity stage is determined by the following criteria: the temperature monitoring parameter range is below 30°C; the C / N ratio reaches the range of 20-30; the raw material F to be fermented materials The color is dark brown or black brown; and by monitoring the degradation rate of organic matter, humus content and the raw material F to be fermented materials The smell determines whether the final stable state has been reached; At the same time, the fermented raw material F materials Work backwards every two days; After fermentation adjustment, the raw material F to be fermented is completed materials The final fermentation control is completed, and the fermented raw material F materials Marked as target fermentation compost T compost .

6. The composting fermentation process based on ODR microbial technology according to claim 5, characterized in that: For S5, the target fermentation compost T compost The crushing and screening process is then followed by granulation and packaging, including: First, the target fermentation compost T compost The crushing process is to crush the target fermentation compost T compost Use crusher to crush, target fermentation compost T compost The broken particles are between 1-5cm; Target fermentation compost T compost After the crushing process, the screening process is carried out, and the screening process is to use a screening machine to separate the target fermentation compost T after the crushing process into compost The sieve is screened, wherein the aperture of the sieve is between 1-3 cm. After the screening is completed, the screened target fermentation compost T compost Granulate the unscreened target compost T compost Return to the fermentation stage to continue processing.

7. The composting fermentation process based on ODR microbial technology according to claim 6, characterized in that: For S5, the target fermentation compost T compost The crushing and screening process is followed by granulation and packaging, which also includes: The screened target fermentation compost T compost Granulation is carried out, and the granulation process is as follows: Target fermentation compost T compost Before granulation, the humidity is adjusted to be between 20% and 30%. After the humidity adjustment is completed, the ingredients are added, including adhesives, preservatives and auxiliary materials; Use a pelletizer to add ingredients to the target fermentation compost T compost Granulation is performed, wherein the target fermentation compost T after granulation is compost The diameter is between 3-5mm; Target fermentation compost T compost After granulation, drying is performed; The target fermentation compost T after drying compost Set the weight of each package, which is between 10-50 kg. After the weight setting is completed, an automatic packaging machine is used to automatically perform bagging, metering and sealing operations; After packaging, standard fermentation compost is obtained. compost .

8. A gas deodorization method in a composting fermentation process based on ODR microbial technology, applied in a composting fermentation process based on ODR microbial technology as claimed in claim 7, characterized in that: include: S6: Gas treatment in the fermentation stage: based on the raw material F to be fermented materials Gas detection is performed during the fermentation process of steps S2-S4, and the fermentation raw material F is treated according to the gas detection results. materials Deodorization during the fermentation process; S7: Quality testing and evaluation: Based on the raw material to be fermented F materials During the fermentation process of steps S2-S4, sampling and testing are performed, and the fermentation raw material F is treated according to the sampling and testing results. materials The fermentation process is adjusted accordingly, and the raw material F to be fermented is tested according to the sampling results. materials Evaluation of fermentation quality.

9. The gas deodorization method in the composting fermentation process based on ODR microbial technology according to claim 8, characterized in that: For S6 based on the fermented raw material F materials Gas detection is performed during the fermentation process of steps S2-S4, and the fermentation raw material F is treated according to the gas detection results. materials The fermentation process is used for deodorization, including: In the fermented raw material F materials During the initial, middle and final stages of fermentation, a gas sampler is used to sample gas, wherein gas sampling is performed every 2 to 3 days during the initial and middle stages of fermentation, and gas sampling is performed every 3 to 5 days during the final stages of fermentation; After gas sampling, the fermentation raw material F materials Analyze the concentration of ammonia, hydrogen sulfide, methane, oxygen and carbon dioxide in the gas; Deodorization treatment is carried out according to the analysis results, and the deodorization treatment includes chemical deodorization, biological deodorization, ventilation deodorization and adsorbent deodorization; Among them, when the ammonia concentration exceeds 20ppm or the hydrogen sulfide concentration exceeds 10ppm, chemical deodorization or biological deodorization is adopted; when the oxygen concentration is lower than 15% or the carbon dioxide concentration exceeds 2%, ventilation deodorization is adopted; when the methane concentration exceeds 1000ppm, oxygen is supplied and adsorbent deodorization is carried out.

10. The gas deodorization method in the composting fermentation process based on ODR microbial technology according to claim 9, characterized in that: For S7 based on the fermented raw material F materials During the fermentation process of steps S2-S4, sampling and testing are performed, and the fermentation raw material F is treated according to the sampling and testing results. materials The fermentation process is adjusted accordingly, and the raw material F to be fermented is tested according to the sampling results. materials Fermentation quality assessment, including: In the fermented raw material F materials During the initial, middle and final stages of fermentation, a sterile sampler is used for sampling and testing. In the initial and middle stages of fermentation, sampling and testing are performed every 2 to 3 days, and in the final stage of fermentation, sampling and testing are performed every 3 to 5 days. The sampling and testing indicators include physical indicators, chemical indicators and biological indicators. Physical indicators include moisture content, temperature, particle size distribution, color and odor; chemical indicators include pH value, conductivity, organic carbon, total nitrogen, C / N ratio and ammonia nitrogen; biological indicators include microbial count, enzyme activity and seed germination rate; Comprehensively evaluate the parameter standards of physical indicators, chemical indicators and biological indicators; According to the comprehensive evaluation results, the corresponding indicators are adjusted, and the raw materials to be fermented are F according to the abnormality of the comprehensive evaluation. materials Evaluation of compost fermentation quality at the initial, middle and final stages of fermentation.

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