Process for preparing garden fertilizer by degrading general industrial solid wastes by using microorganisms

Abstract

The invention provides a process for preparing a garden fertilizer by degrading general industrial solid wastes by using microorganisms, and relates to the field of industrial solid waste treatment. The process for preparing the garden fertilizer by degrading the industrial general solid waste by utilizing the microorganisms comprises the following steps: S1, firstly, introducing an industrial solid waste raw material to be degraded into an anaerobic tank in a first stage, adopting a contact anaerobic tank in the first stage, and filling a high-density filler to improve the biological treatment load and preliminarily decompose complex organic matters; according to the invention, efficient decomposition of complex organic matters in industrial solid wastes is realized through combination of multi-stage biodegradation and membrane separation technologies, and organic matter content and nutrient balance of the fertilizer are remarkably improved and healthy growth of plants is promoted by optimizing microbial communities and adding an organic matter modifier; the dual requirements of users for high-nutrition and harmless treatment are met, and the purpose of pumping the biological enzyme and the adsorbent is achieved by means of the feeding pipe through work of the material pumping pump.

Description

Technical Field

[0001] The present invention relates to the field of industrial solid waste treatment, and specifically to a process for preparing garden fertilizer by using microorganisms to degrade general industrial solid waste. Background Technique

[0002] There are various treatment methods for industrial solid waste, such as compaction, crushing, sorting, solidification, incineration, and biological treatment. These methods are the most widely applied and very effective. Compaction is a pretreatment technology that reduces the volume of waste, lowers transportation costs, and extends the landfill life. Scope of application: Suitable for solid waste that can be compacted to reduce volume, such as cars, aluminum cans, plastic bottles, etc. Non - applicable scope: Certain wastes that may cause operation problems, such as tar, sludge, or liquid materials, are generally not suitable for compaction treatment.

[0003] Currently, industrial solid waste treatment faces severe challenges. Traditional landfill and incineration methods not only occupy a large amount of land resources but also may cause environmental pollution. Meanwhile, the market for garden fertilizers is growing, and the demand for environmentally friendly and high - quality fertilizers is continuously rising. Existing solid waste treatment technologies are inefficient, costly, and difficult to achieve effective resource recovery. At the same time, the preparation of garden fertilizers often relies on natural raw materials, posing a risk of resource depletion. There have been attempts to treat solid waste by physical or chemical methods and use it for fertilizer improvement, but these methods often consume a large amount of energy, are operationally complex, costly, and may introduce new environmental problems. Although the biodegradation method is environmentally friendly, it has deficiencies in degradation rate and product performance. As an emerging environmental protection means, microbial degradation technology needs to overcome technical problems such as degradation efficiency and product quality control. However, the support of policies for green technologies and the increase in market demand provide a good opportunity for technological breakthroughs. Therefore, technical personnel in this field have provided a process for preparing garden fertilizer by using microorganisms to degrade general industrial solid waste to solve the problems raised in the above - mentioned background technique. Summary of the Invention

[0004] 1. Technical Problems to be Solved In view of the deficiencies of the prior art, the present invention provides a process for preparing garden fertilizer by using microorganisms to degrade general industrial solid waste, solving the problems raised in the background technique.

[0005] 2. Technical Solutions To achieve the above objectives, the present invention is realized through the following technical solutions: A process for preparing garden fertilizer by using microorganisms to degrade general industrial solid waste, comprising the following steps: S1: First, introduce the industrial solid waste raw materials to be degraded into the anaerobic pond, which is the first stage. In the first stage, a contact anaerobic pond is used, filled with high-density fillers to increase the biological treatment load and preliminarily decompose complex organic substances. Then, through the operation of a solenoid valve, the raw materials in the anaerobic pond will flow into the facultative pond through a conveying pipeline, which is the second stage. In the second stage, perforated pipes are used for aeration to provide appropriate oxygen to promote the further degradation of intermediate metabolites. Then, through the operation of two solenoid valves, the raw materials in the facultative pond will flow into the aerobic pond through two conveying pipelines, which is the third stage. In the third stage, high-intensity aeration is used to maintain a high concentration of active microorganisms to complete the final mineralization of organic substances. Specific bioenzymes and adsorbents are added in each reaction stage. When adding, through the operation of a feeding pump, the materials in the bioenzyme tank and the adsorbent tank are introduced into the anaerobic pond, the facultative pond, and the aerobic pond through the feeding pipe. After adding, through the operation of a driving motor, with the transmission characteristics of the first conveyor belt and the second conveyor belt, the rotating shaft, the first pulley, and the second pulley are driven to rotate, thereby accelerating the mixing efficiency of the stirring rod. The bioenzymes are used to accelerate the decomposition of refractory organic substances, form stable chelates and are discharged with the sludge, effectively reducing pollutant residues. The adsorbent is selected from modified zeolite or activated carbon to ensure the adsorption efficiency while reducing secondary pollution; S2: After biodegradation in the three stages, through the operation of three solenoid valves, the raw materials in the aerobic pond will flow into the membrane bioreactor MBR through three conveying pipelines. By introducing the membrane bioreactor MBR to replace the traditional secondary sedimentation tank for solid-liquid separation, using microfiltration membranes or ultrafiltration membranes with pore sizes below. microns, efficient separation of water and activated sludge is achieved under the pressure difference on both sides of the membrane, while preventing the loss of microorganisms, improving the system stability and shortening the repair cycle; S3: After efficient separation by the membrane bioreactor MBR, through the operation of four solenoid valves, the raw materials at the microfiltration membrane will flow into the strain pond through four conveying pipelines. In this area, to optimize the microbial community structure, by opening the first box board and adding composite functional strains such as acid-producing bacteria and nitrifying bacteria from the strain box into the strain pond, the dynamic regulation of environmental parameters such as pH, temperature, and dissolved oxygen is adjusted by controlling the controller to enhance the degradation efficiency and nutrient conversion ability; S4: After nutrient conversion in the area of the microbial community structure, through the operation of five solenoid valves, the raw materials in the strain pond will flow into the dosing pond through five conveying pipelines. In the final effluent stage, by opening the second box board and adding organic matter improvers such as humic acid or biochar from the dosing box into the dosing pond, and mixing with the degradation products to make garden waste, significantly improving the organic matter content and nutrient balance of the fertilizer and promoting plant growth; S5: Finally, place the external storage container at the bottom of the discharge pipe, and then through the operation of six solenoid valves, the raw materials in the dosing pond are discharged into the external storage container through the discharge pipe; Through the above technical scheme, through the combination of multi-stage biodegradation and membrane separation technology, the efficient decomposition of complex organic matter in industrial solid waste can be achieved. By optimizing the microbial community and adding organic matter improvers, the organic matter content and nutrient balance of the fertilizer can be significantly improved, promoting the healthy growth of plants and meeting the users' dual needs for high nutritional value and harmless treatment.

[0006] Furthermore, it includes a support plate, an anaerobic tank, an anaerobic tank, an aerobic tank, a stirring mechanism, a membrane bioreactor, a bacterial strain tank and a feeding tank, the top of the support plate is fixedly connected to the anaerobic tank, the anaerobic tank and the aerobic tank, the sides of the anaerobic tank, the anaerobic tank and the aerobic tank are fixedly connected to a biological enzyme box and an adsorbent box, the tops of the biological enzyme box and the adsorbent box are fixedly installed with a feed pump, the top of the feed pump is fixedly connected to a feeding pipe, and the anaerobic tank, the anaerobic tank and the aerobic tank all belong to the multi-stage bioreactor area; The stirring mechanism includes a driving motor fixedly mounted on the side of the anaerobic tank through a mounting plate, bearings are fixedly connected on both sides of the inner walls of the anaerobic tank, the facultative aerobic tank and the aerobic tank, rotating shafts are rotatably connected in the three groups of bearings, one end of the rotating shaft on one side is fixedly connected to the output shaft of the driving motor, the surface of the rotating shaft on one side and the surface of the middle rotating shaft are fixedly connected to a first pulley, a first conveyor belt is transmission-connected between the two first pulleys, a second pulley is fixedly connected to the surface of the rotating shaft on the other side, a second conveyor belt is transmission-connected between the two second pulleys, and stirring rods are fixedly connected to the surfaces of the three rotating shafts, and there are a plurality of stirring rods; Through the above technical scheme, the purpose of pumping the biological enzyme and the adsorbent is achieved by the operation of the pumping pump and the feeding pipe, and the driving motor is driven by the transmission action of the first conveyor belt and the second conveyor belt to drive the rotating shaft, the first pulley and the second pulley to rotate, thereby achieving the purpose of mixing the raw materials, the biological enzyme and the adsorbent with the stirring rod. The membrane bioreactor is a new water treatment technology that combines a membrane separation unit with a biological treatment unit.

[0007] Furthermore, a membrane bioreactor is fixedly connected to the top of the support plate, and a microfiltration membrane is arranged inside the membrane bioreactor; Through the above technical solution, by setting up a membrane bioreactor, it is possible to use the membrane module to replace the secondary sedimentation tank at the end of traditional biological treatment technology. Through the efficient interception effect of the membrane, activated sludge, macromolecular organic matter, etc. are intercepted in the bioreactor, realizing the complete separation of hydraulic retention time (HRT) and sludge retention time (SRT), enabling a high activated sludge concentration to be maintained in the reactor, thereby increasing the organic load of biological treatment. The microfiltration membrane is a thin film with functions such as separation, filtration, and impurity removal. By setting up the microfiltration membrane, particles between 0.1 and 1 micron can be intercepted, allowing macromolecular organic matter and dissolved solids (inorganic salts), etc. to pass through, but intercepting substances such as suspended solids, bacteria, and large molecular weight colloids.

[0008] Furthermore, a bacterial species pool is fixedly connected to the top of the support plate. A controller is fixedly installed on the side of the bacterial species pool. A bacterial species box is fixedly connected to the top of the bacterial species pool. A first box plate is movably connected to the side of the bacterial species box through a hinge. The bacterial species pool, controller, bacterial species box, and first box plate all belong to the microbial community structure area; Through the above technical solution, by setting up the bacterial species pool, it can provide a storage space for raw materials. By setting up the controller, it can dynamically regulate environmental parameters such as pH, temperature, and dissolved oxygen. By setting up the bacterial species box, it can store acid-producing bacteria and nitrifying bacteria. By setting up the first box plate, it can block the bacteria in the bacterial species box.

[0009] Furthermore, a dosing pool is fixedly connected to the top of the support plate. A dosing box is fixedly connected to the top of the dosing pool. A second box plate is movably connected to the side of the dosing box through a hinge. The dosing pool, dosing box, and second box plate all belong to the water outlet stage area; Through the above technical solution, by setting up the dosing pool, it can provide a storage space for raw materials. By setting up the dosing box, it can store organic matter improvers (such as humic acid or biochar). By setting up the second box plate, it can block the organic matter improver.

[0010] Furthermore, conveying pipes are fixedly connected to the sides of the anaerobic tank, anoxic tank, aerobic tank, membrane bioreactor, and bacterial species pool. A discharge pipe is fixedly connected to the side of the dosing pool. Solenoid valves are fixedly installed on the surfaces of the conveying pipes and the discharge pipe; Through the above technical solution, by setting up the conveying pipes and the discharge pipe, it can facilitate the effect of conveying in a specified direction. By setting up the solenoid valves, it can control the flow rate.

[0011] Furthermore, injection pipes are fixedly connected to the tops of the bioenzyme box and the adsorbent box. A sealing plug is clamped inside the injection pipes; Through the above technical solution, by setting the injection pipe, the effect of introducing bio-enzyme and adsorbent can be achieved, and by setting the sealing plug, the effect of sealing the inside of the injection pipe can be achieved.

[0012] Further, a support column is fixedly connected to the bottom of the support plate. There are four support columns, and the bottom ends of the four support columns are all fixedly connected with a bottom plate; Through the above technical solution, by setting the support column and the bottom plate, the effect of supporting the overall device can be achieved.

[0013] Further, a support seat is fixedly connected to the side of the support plate, and the discharge pipe is located inside the support seat; Through the above technical solution, by setting the support seat, the effect of limiting and supporting the discharge pipe can be achieved.

[0014] 3. Beneficial effects The present invention provides a process for preparing garden fertilizer by using microorganisms to degrade general industrial solid waste. It has the following beneficial effects: 1. The present invention provides a process for preparing garden fertilizer by using microorganisms to degrade general industrial solid waste. Through the combination of multi-stage biodegradation and membrane separation technology, the efficient decomposition of complex organic substances in industrial solid waste is realized, ensuring that the produced garden fertilizer is safe and harmless. By optimizing the microbial community and adding organic matter modifiers, the organic matter content and nutrient balance of the fertilizer are significantly improved, promoting the healthy growth of plants and meeting the dual needs of users for high nutrition and harmless treatment.

[0015] 2. The present invention provides a process for preparing garden fertilizer by using microorganisms to degrade general industrial solid waste. By the operation of the pumping pump, the purpose of pumping bio-enzyme and adsorbent is achieved through the feeding pipe. By the operation of the driving motor, with the transmission of the first conveyor belt and the second conveyor belt, the rotating shaft, the first pulley and the second pulley are driven to rotate, and then the purpose of mixing the raw materials, bio-enzyme and adsorbent by the stirring rod is achieved. Brief description of the drawings

[0016] Figure 1 It is the overall front view structural schematic diagram of the present invention; Figure 2 It is the overall side view structural schematic diagram of the present invention; Figure 3 It is the side view structural schematic diagram of the stirring mechanism in the present invention; Figure 4 It is the overall top view structural schematic diagram of the present invention; Figure 5 It is the front view structural schematic diagram of the conveying pipeline and the solenoid valve in the present invention; Figure 6 It is the side view sectional structural schematic diagram of the membrane bioreactor in the present invention; Figure 7 It is a schematic diagram of the overall system structure in the present invention.

[0017] Among them, 1. Support plate; 2. Anaerobic tank; 3. Facultative oxygen tank; 4. Aerobic tank; 5. Stirring mechanism; 501. Driving motor; 502. Bearing; 503. Rotating shaft; 504. First pulley; 505. First conveyor belt; 506. Second pulley; 507. Second conveyor belt; 508. Stirring rod; 6. Membrane bioreactor; 7. Bacterial species pool; 8. Controller; 9. Bacterial species box; 10. First box board; 11. Feeding pool; 12. Feeding box; 13. Second box board; 14. Discharge pipe; 15. Solenoid valve; 16. Support seat; 17. Bioenzyme tank; 18. Adsorbent tank; 19. Feeding pump; 20. Feeding pipe; 21. Injection pipe; 22. Sealing plug; 23. Support column; 24. Bottom plate; 25. Delivery pipeline; 26. Microfiltration membrane. Specific embodiments

[0018] Next, the technical solutions in the specific embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the specific embodiments of the present invention. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, rather than all the specific embodiments. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Specific embodiment 1: As Figure 7 shown, the specific embodiment of the present invention provides a process for preparing garden fertilizer by using microorganisms to degrade general industrial solid waste, including the following steps: S1: First, import the industrial solid waste raw materials to be degraded into the anaerobic tank 2, which is the first stage. In the first stage, a contact anaerobic tank 2 is used, filled with high-density fillers to increase the biological treatment load and preliminarily decompose complex organic substances. Then, through the operation of a solenoid valve 15, the raw materials in the anaerobic tank 2 will flow into the anoxic tank 3 through a conveying pipeline 25, which is the second stage. In the second stage, perforated pipe aeration is used to provide an appropriate amount of oxygen to promote the further degradation of intermediate metabolites. Then, through the operation of two solenoid valves 15, the raw materials in the anoxic tank 3 will flow into the aerobic tank 4 through two conveying pipelines 25, which is the third stage. In the third stage, high-intensity aeration is used to maintain a high concentration of active microorganisms to complete the final mineralization of organic substances. Specific bioenzymes and adsorbents are added in each reaction stage. When adding, through the operation of a feeding pump 19, the materials in the bioenzyme tank 17 and the adsorbent tank 18 are introduced into the anaerobic tank 2, the anoxic tank 3, and the aerobic tank 4 through the feeding pipe 20. After adding, the drive motor 501 can be operated, and with the transmission characteristics of the first conveyor belt 505 and the second conveyor belt 507, the rotating shaft 503, the first pulley 504, and the second pulley 506 are driven to rotate, thereby accelerating the mixing efficiency of the stirring rod 508. The bioenzymes are used to accelerate the decomposition of refractory organic substances, form stable chelates, and are discharged with the sludge, effectively reducing pollutant residues. The adsorbent is selected from modified zeolite or activated carbon to ensure the adsorption efficiency while reducing secondary pollution; S2: After biodegradation in the three stages, through the operation of three solenoid valves 15, the raw materials in the aerobic tank 4 will flow into the membrane bioreactor 6 MBR through three conveying pipelines 25. By introducing the membrane bioreactor 6 MBR to replace the traditional secondary sedimentation tank for solid-liquid separation, a microfiltration membrane 26 or an ultrafiltration membrane with a pore size below. microns is used to achieve efficient separation of water and activated sludge under the pressure difference on both sides of the membrane, while preventing the loss of microorganisms, improving the system stability, and shortening the repair cycle; S3: After efficient separation by the membrane bioreactor 6 MBR, through the operation of four solenoid valves 15, the raw materials at the microfiltration membrane 26 will flow into the strain pool 7 through four conveying pipelines 25. In this area, to optimize the microbial community structure, by opening the first box board 10 and adding composite functional strains such as acid-producing bacteria and nitrifying bacteria from the strain box 9 into the strain pool 7, and by controlling the controller 8 to adjust the dynamic pH, temperature, and dissolved oxygen environmental parameters, the degradation efficiency and nutrient conversion ability are enhanced; S4: After nutrient conversion in the area of the microbial community structure, through the operation of five solenoid valves 15, the raw materials in the strain pool 7 will flow into the dosing pool 11 through five conveying pipelines 25. In the final effluent stage, by opening the second box board 13 and adding organic matter improvers such as humic acid or biochar from the dosing box 12 into the dosing pool 11, and mixing with the degradation products to make garden fertilizers, significantly improving the organic matter content and nutrient balance of the fertilizers and promoting plant growth; S5: Finally, place the external storage container at the bottom of the discharge pipe 14, and then operate the six solenoid valves 15 to discharge the raw materials in the delivery pool 11 into the external storage container through the discharge pipe 14. Through the combination of multi-stage biodegradation and membrane separation technology, the efficient decomposition of complex organic matter in industrial solid waste is achieved to ensure that the produced garden fertilizer is safe and harmless. By optimizing the microbial community and adding organic matter improvers, the organic matter content and nutrient balance of the fertilizer are significantly improved, which promotes the healthy growth of plants and meets the dual needs of users for high nutritional value and harmless treatment.

[0020] according to Figure 1 , Figure 2 , Figure 3 and Figure 7 As shown, it includes a support plate 1, an anaerobic tank 2, an anaerobic tank 3, an aerobic tank 4, a stirring mechanism 5, a membrane bioreactor 6, a bacterial pool 7 and a feeding pool 11. The top of the support plate 1 is fixedly connected to the anaerobic tank 2, the anaerobic tank 3 and the aerobic tank 4. The sides of the anaerobic tank 2, the anaerobic tank 3 and the aerobic tank 4 are fixedly connected with a biological enzyme box 17 and an adsorbent box 18. The tops of the biological enzyme box 17 and the adsorbent box 18 are fixedly installed with a pumping pump 19. The top of the pumping pump 19 is fixedly connected with a feeding pipe 20. The anaerobic tank 2, the anaerobic tank 3 and the aerobic tank 4 all belong to the multi-stage bioreactor area. The purpose of pumping the biological enzyme and the adsorbent is achieved by working the pumping pump 19 and using the feeding pipe 20; The stirring mechanism 5 includes a driving motor 501 fixedly mounted on the side of the anaerobic tank 2 through a mounting plate, and bearings 502 are fixedly connected to both sides of the inner walls of the anaerobic tank 2, the facultative aerobic tank 3 and the aerobic tank 4. The three sets of bearings 502 are rotatably connected with rotating shafts 503. One end of the rotating shaft 503 on one side is fixedly connected to the output shaft of the driving motor 501. The surface of the rotating shaft 503 on one side and the surface of the intermediate rotating shaft 503 are fixedly connected with a first pulley 504. A first conveyor belt 505 is transmission-connected between the two first pulleys 504. The surface of the intermediate rotating shaft 503 A second pulley 506 is fixedly connected to the surface of the rotating shaft 503 on the other side, and a second conveyor belt 507 is transmission-connected between the two second pulleys 506. Stirring rods 508 are fixedly connected to the surfaces of the three rotating shafts 503. There are several stirring rods 508, which are driven by the driving motor 501 and, with the help of the transmission action of the first conveyor belt 505 and the second conveyor belt 507, drive the rotating shaft 503, the first pulley 504 and the second pulley 506 to rotate, thereby achieving the purpose of mixing the raw materials, biological enzymes and adsorbents by the stirring rods 508.

[0021] according to Figure 1 , Figure 2 and Figure 6As shown, a membrane bioreactor 6 is fixedly connected to the top of the support plate 1. A microfiltration membrane 26 is arranged inside the membrane bioreactor 6. The membrane bioreactor 6 is a new water treatment technology that combines a membrane separation unit and a biological treatment unit. By setting the membrane bioreactor 6, it is possible to use a membrane module to replace the secondary sedimentation tank at the end of traditional biological treatment technology. Through the efficient interception of the membrane, activated sludge, macromolecular organic matter, etc. are intercepted in the biological reactor, realizing the complete separation of hydraulic retention time (HRT) and sludge age (SRT), enabling a high activated sludge concentration to be maintained in the reactor, thereby increasing the organic load of biological treatment. The microfiltration membrane 26 is a thin film with functions such as separation, filtration, and impurity removal. By setting the microfiltration membrane 26, particles between 0.1 and 1 micron can be intercepted, allowing macromolecular organic matter and dissolved solids (inorganic salts), etc. to pass through, but intercepting substances such as suspended solids, bacteria, and large molecular weight colloids. A strain pool 7 is fixedly connected to the top of the support plate 1. A controller 8 is fixedly installed on the side of the strain pool 7. A strain box 9 is fixedly connected to the top of the strain pool 7. The side of the strain box 9 is movably connected by a hinge to a first box plate 10. The strain pool 7, the controller 8, the strain box 9, and the first box plate 10 all belong to the microbial community structure area. By setting the strain pool 7, it can provide a storage space for raw materials. By setting the controller 8, it can dynamically regulate environmental parameters such as pH, temperature, and dissolved oxygen. By setting the strain box 9, it can store acid-producing bacteria and nitrifying bacteria. By setting the first box plate 10, it can block the bacteria in the strain box 9.

[0022] According to Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, a dosing tank 11 is fixedly connected to the top of the support plate 1. A dosing box 12 is fixedly connected to the top of the dosing tank 11. The side of the dosing box 12 is movably connected by a hinge to a second box plate 13. The dosing tank 11, the dosing box 12, and the second box plate 13 all belong to the effluent stage area. By setting the dosing tank 11, it can provide a storage space for raw materials. By setting the dosing box 12, it can store organic matter improvers (such as humic acid or biochar). By setting the second box plate 13, it can block the organic matter improver. Delivery pipes 25 are fixedly connected to the sides of the anaerobic tank 2, the facultative anaerobic tank 3, the aerobic tank 4, the membrane bioreactor 6, and the strain pool 7. A discharge pipe 14 is fixedly connected to the side of the dosing tank 11. Solenoid valves 15 are fixedly installed on the surfaces of the delivery pipes 25 and the discharge pipe 14. By setting the delivery pipes 25 and the discharge pipe 14, it is possible to facilitate the delivery in a specified flow direction. By setting the solenoid valves 15, it is possible to control the flow rate.

[0023] According to Figure 1 and Figure 2As shown, injection pipes 21 are fixedly connected to the tops of both the bio-enzyme tank 17 and the adsorbent tank 18. A sealing plug 22 is clamped inside the injection pipe 21. By providing the injection pipe 21, the bio-enzyme and the adsorbent can be introduced. By providing the sealing plug 22, the inside of the injection pipe 21 can be sealed. The bottom of the support plate 1 is fixedly connected with support columns 23. There are four support columns 23, and the bottoms of the four support columns 23 are all fixedly connected with a bottom plate 24. By providing the support columns 23 and the bottom plate 24, the overall device can be supported. The side of the support plate 1 is fixedly connected with a support seat 16. The discharge pipe 14 is located inside the support seat 16. By providing the support seat 16, the discharge pipe 14 can be limited and supported.

[0024] Working principle: S1: First, the industrial solid waste raw materials to be degraded are introduced into the anaerobic tank 2, which is the first stage. In the first stage, the contact anaerobic tank 2 is used, and high-density fillers are filled to increase the biological treatment load and initially decompose complex organic substances. Then, through the operation of a solenoid valve 15, the raw materials in the anaerobic tank 2 will flow into the facultative anaerobic tank 3 through a conveying pipeline 25, which is the second stage. In the second stage, perforated pipe aeration is used to provide an appropriate amount of oxygen to promote the further degradation of intermediate metabolites. Then, through the operation of a second solenoid valve 15, the raw materials in the facultative anaerobic tank 3 will flow into the aerobic tank 4 through a second conveying pipeline 25, which is the third stage. In the third stage, high-intensity aeration is used to maintain a high concentration of active microorganisms to complete the final mineralization of organic substances. During each reaction stage, specific bio-enzymes and adsorbents are added. When adding, through the operation of the feeding pump 19, the materials in the bio-enzyme tank 17 and the adsorbent tank 18 are introduced into the anaerobic tank 2, the facultative anaerobic tank 3, and the aerobic tank 4 by means of the feeding pipe 20. After the addition is completed, the driving motor 501 can be operated, and with the transmission characteristics of the first conveyor belt 505 and the second conveyor belt 507, the rotating shaft 503, the first pulley 504, and the second pulley 506 are driven to rotate, thereby accelerating the mixing efficiency of the stirring rod 508. (The bio-enzyme is used to accelerate the decomposition of refractory organic substances, form stable chelates and be discharged with the sludge, effectively reducing pollutant residues. The adsorbent is selected from modified zeolite or activated carbon to ensure the adsorption efficiency while reducing secondary pollution); S2: After the biological degradation in the three stages, through the operation of a third solenoid valve 15, the raw materials in the aerobic tank 4 will flow into the membrane bioreactor 6 (MBR) through a third conveying pipeline 25. By introducing the membrane bioreactor 6 (MBR) to replace the traditional secondary sedimentation tank for solid-liquid separation, a microfiltration membrane 26 or an ultrafiltration membrane with a pore size below 0.4 microns is used to achieve efficient separation of water and activated sludge under the pressure difference on both sides of the membrane, while preventing the loss of microorganisms, improving the system stability and shortening the repair cycle; S3: After being efficiently separated by the membrane bioreactor 6 (MBR), through the operation of four solenoid valves 15, the raw materials at the microfiltration membrane 26 will flow into the strain pool 7 through four conveying pipelines 25. In this area, to optimize the microbial community structure, by opening the first box board 10 and adding composite functional strains (such as acid-producing bacteria and nitrifying bacteria) from the strain box 9 into the strain pool 7, the controller 8 is manipulated to adjust the dynamic regulation of pH, temperature, and dissolved oxygen environmental parameters, enhancing the degradation efficiency and nutrient conversion ability; S4: After the nutrient conversion in the area of the microbial community structure, through the operation of five solenoid valves 15, the raw materials in the strain pool 7 will flow into the dosing pool 11 through five conveying pipelines 25. In the final effluent stage, by opening the second box board 13 and adding organic matter improvers (such as humic acid or biochar) from the dosing box 12 into the dosing pool 11, and mixing with the degradation products to make garden fertilizer, significantly improving the organic matter content and nutrient balance of the fertilizer and promoting plant growth; S5: Finally, place the external storage container at the bottom of the discharge pipe 14, and then through the operation of six solenoid valves 15, discharge the raw materials in the dosing pool 11 into the external storage container through the discharge pipe 14.

[0025] Although specific embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these specific embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A process for preparing garden fertilizer by using microorganisms to degrade general industrial solid waste, characterized in that: The following steps are involved: S1: First, the industrial solid waste raw materials to be degraded are introduced into the anaerobic tank (2), which is the first stage. The first stage uses a contact anaerobic tank (2) filled with high-density fillers to increase the biological treatment load and preliminarily decompose complex organic matter. Then, through the operation of a solenoid valve (15), the raw materials in the anaerobic tank (2) will flow into the facultative aerobic tank (3) through a conveying pipe (25), which is the second stage. In the second stage, perforated pipe aeration is used to provide an appropriate amount of oxygen to promote further degradation of intermediate metabolites. Then, through the operation of two solenoid valves (15), the raw materials in the facultative aerobic tank (3) will flow into the aerobic tank (4) through two conveying pipes (25), which is the third stage. In the third stage, high-intensity aeration is used to maintain a high concentration of active microorganisms to complete the final mineralization of organic matter. In each reaction stage Adding specific biological enzymes and adsorbents, when adding, the materials in the biological enzyme box (17) and the adsorbent box (18) are introduced into the anaerobic tank (2), the facultative aerobic tank (3) and the aerobic tank (4) by means of the feed pipe (20) through the feed pump (19). After the addition is completed, the drive motor (501) can be operated to drive the rotating shaft (503), the first pulley (504) and the second pulley (506) to rotate by means of the transmission characteristics of the first conveyor belt (505) and the second conveyor belt (507), thereby accelerating the mixing efficiency of the stirring rod (508). (The biological enzyme is used to accelerate the decomposition of difficult-to-degrade organic matter, and forms a stable chelate and is discharged with the sludge, effectively reducing the residual pollutants. The adsorbent is selected from modified zeolite or activated carbon to ensure the adsorption efficiency while reducing secondary pollution). S2: After three stages of biodegradation, the raw materials in the aerobic tank (4) will flow into the membrane bioreactor (6) (MBR) through three conveying pipes (25) through the operation of three solenoid valves (15). By introducing the membrane bioreactor (6) (MBR) to replace the traditional secondary sedimentation tank for solid-liquid separation, a microfiltration membrane (26) or ultrafiltration membrane with a pore size of less than 0.4 microns is used to achieve efficient separation of water and activated sludge under the action of the pressure difference on both sides of the membrane, while preventing the loss of microorganisms, improving system stability and shortening the repair cycle; S3: After efficient separation in the membrane bioreactor (6) (MBR), the raw materials at the microfiltration membrane (26) will flow into the bacterial pool (7) through the four conveying pipes (25) through the operation of the four solenoid valves (15). In order to optimize the microbial community structure in this area, the first box plate (10) is opened and composite functional bacteria (such as acid-producing bacteria and nitrifying bacteria) are added from the bacterial box (9) into the bacterial pool (7). The pH, temperature and dissolved oxygen environmental parameters are dynamically adjusted by the control controller (8) to enhance the degradation efficiency and nutrient conversion capacity; S4: After the nutrient conversion in the microbial community structure area, the raw materials in the bacterial pool (7) will flow into the delivery pool (11) through five delivery pipes (25) through the operation of five solenoid valves (15). In the final water discharge stage, the second box plate (13) is opened and an organic matter improver (such as humic acid or biochar) is added from the delivery box (12) to the delivery pool (11). After mixing with the degradation products, a garden fertilizer is prepared, which significantly improves the organic matter content and nutrient balance of the fertilizer and promotes plant growth. S5: Finally, the external storage container is placed at the bottom of the discharge pipe (14), and then the six solenoid valves (15) are operated to discharge the raw materials in the delivery pool (11) through the discharge pipe (14) into the external storage container.

2. A process for preparing garden fertilizer by utilizing microorganisms to degrade general industrial solid waste, used for the process for preparing garden fertilizer by utilizing microorganisms to degrade general industrial solid waste in claim 1, a structure capable of implementing the process, comprising a support plate (1), an anaerobic tank (2), an anaerobic tank (3), an aerobic tank (4), a stirring mechanism (5), a membrane bioreactor (6), a bacterial seed tank (7) and a dosing tank (11), characterized in that: The top of the support plate (1) is fixedly connected to the anaerobic tank (2), the facultative aerobic tank (3) and the aerobic tank (4); the sides of the anaerobic tank (2), the facultative aerobic tank (3) and the aerobic tank (4) are fixedly connected to a biological enzyme box (17) and an adsorbent box (18); the tops of the biological enzyme box (17) and the adsorbent box (18) are fixedly installed with a feed pump (19); the top of the feed pump (19) is fixedly connected to a feed pipe (20); the anaerobic tank (2), the facultative aerobic tank (3) and the aerobic tank (4) all belong to a multi-stage bioreactor area; The stirring mechanism (5) comprises a driving motor (501) fixedly mounted on the side of the anaerobic tank (2) via a mounting plate; bearings (502) are fixedly connected to both sides of the inner walls of the anaerobic tank (2), the facultative aerobic tank (3) and the aerobic tank (4); rotating shafts (503) are rotatably connected in the three groups of the bearings (502); one end of the rotating shaft (503) on one side is fixedly connected to the output shaft of the driving motor (501); a first belt pulley (504) is fixedly connected to the surface of the rotating shaft (503) on one side and the surface of the middle rotating shaft (503); a first conveyor belt (505) is transmission-connected between the two first belt pulleys (504); a second belt pulley (506) is fixedly connected to the surface of the rotating shaft (503) on the other side; a second conveyor belt (507) is transmission-connected between the two second belt pulleys (506); stirring rods (508) are fixedly connected to the surfaces of the three rotating shafts (503); and there are a plurality of stirring rods (508).

3. The process for preparing garden fertilizer by utilizing microorganisms to degrade general industrial solid waste according to claim 2, characterized in that: A membrane bioreactor (6) is fixedly connected to the top of the support plate (1), and a microfiltration membrane (26) is arranged inside the membrane bioreactor (6).

4. The process for preparing garden fertilizer by utilizing microorganisms to degrade general industrial solid waste according to claim 2, characterized in that: The top of the support plate (1) is fixedly connected to a bacterial culture pool (7), a controller (8) is fixedly installed on the side of the bacterial culture pool (7), the top of the bacterial culture pool (7) is fixedly connected to a bacterial culture box (9), and the side of the bacterial culture box (9) is movably connected to a first box plate (10) via a hinge. The bacterial culture pool (7), the controller (8), the bacterial culture box (9) and the first box plate (10) all belong to a microbial community structure area.

5. The process for preparing garden fertilizer by utilizing microorganisms to degrade general industrial solid waste according to claim 2, characterized in that: The top of the support plate (1) is fixedly connected to a delivery pool (11), the top of the delivery pool (11) is fixedly connected to a delivery box (12), the side of the delivery box (12) is movably connected to a second box plate (13) via a hinge, and the delivery pool (11), the delivery box (12) and the second box plate (13) all belong to a water discharge stage area.

6. The process for preparing garden fertilizer by utilizing microorganisms to degrade general industrial solid waste according to claim 2, characterized in that: The sides of the anaerobic tank (2), the facultative aerobic tank (3), the aerobic tank (4), the membrane bioreactor (6) and the bacterial seed tank (7) are all fixedly connected with a conveying pipeline (25), the side of the placement tank (11) is fixedly connected with a discharge pipe (14), and the surface of the conveying pipeline (25) and the surface of the discharge pipe (14) are both fixedly installed with a solenoid valve (15).

7. The process for preparing garden fertilizer by utilizing microorganisms to degrade general industrial solid waste according to claim 2, characterized in that: The tops of the biological enzyme box (17) and the adsorbent box (18) are both fixedly connected with an injection pipe (21), and a sealing plug (22) is clamped inside the injection pipe (21).

8. The process for preparing garden fertilizer by utilizing microorganisms to degrade general industrial solid waste according to claim 2, characterized in that: The bottom of the support plate (1) is fixedly connected to a support column (23), there are four support columns (23), and the bottom ends of the four support columns (23) are all fixedly connected to a bottom plate (24).

9. The process for preparing garden fertilizer by utilizing microorganisms to degrade general industrial solid waste according to claim 6, characterized in that: A support seat (16) is fixedly connected to the side of the support plate (1), and the discharge pipe (14) is located inside the support seat (16).

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