Environment-friendly liquid organic waste aerobic fermentation bin

Abstract

This utility model relates to an environmentally friendly aerobic fermentation chamber for liquid organic waste, belonging to the field of fermentation equipment technology. It solves technical problems such as the separation of organic waste for fermentation, incomplete fermentation of liquid organic waste, and the generation of odorous gases during fermentation. The environmentally friendly aerobic fermentation chamber for liquid organic waste includes a fermentation chamber and a biological filter. The fermentation chamber contains a solid-liquid separation workshop, a sedimentation tank, an aerobic tank, and a clarification tank. Slide rails are laid along the length of the fermentation chamber on the inner side of the horseshoe-shaped walls on both sides of the sedimentation tank, aerobic tank, and clarification tank. Movable stirring components are installed on the slide rails, allowing them to slide left and right. Filter material is filled into the biological filter to filter odorous gases within the fermentation chamber. This utility model enables solid-liquid separation of organic waste and, through different tanks, ferments the liquid organic waste more completely.

Description

Technical Field

[0001] This utility model relates to an environmentally friendly aerobic fermentation chamber for liquid organic waste, belonging to the field of fermentation equipment technology. Background Technology

[0002] Under the current trend of environmental protection and resource recycling, the treatment of organic waste has received increasing attention. Aerobic fermentation, as a highly efficient and environmentally friendly method for treating organic waste, uses microorganisms to decompose and transform waste in an aerobic environment. This not only reduces and renders waste harmless but also transforms it into nutrient-rich organic fertilizer, achieving effective resource recycling. It has been widely used in many fields such as agricultural waste treatment and organic fertilizer production.

[0003] Traditional livestock farming methods for treating manure and wastewater are simple and crude, with serious problems of indiscriminate discharge. In particular, many large livestock counties have stinking ditches and ponds. Some large pig farms build large open-air sedimentation tanks on their breeding bases and discharge the manure and wastewater into the sedimentation tanks. The wastewater evaporates naturally, creating a foul odor. The solid materials that settle in the tanks are difficult to clean, causing serious secondary pollution to the environment.

[0004] Currently, some livestock enterprises use chemical and biological treatment methods, but these require a large amount of energy and manpower, resulting in high processing costs. Most organic fertilizer enterprises use open-air composting and fermentation in the production process, without environmentally friendly treatment of the harmful gases produced during fermentation, resulting in non-standard emissions. The fermentation process is simple, and the materials are not fully decomposed, which is harmful to plants and soil when applied to the fields and cannot meet relevant industry and national standards. Utility Model Content

[0005] To address the technical problems of separating organic waste for fermentation, incomplete fermentation of liquid organic waste, and odorous gases generated during fermentation, this invention proposes an environmentally friendly aerobic fermentation chamber for liquid organic waste.

[0006] To solve the above-mentioned technical problems, the specific technical solution of this utility model is as follows:

[0007] like Figure 1As shown, the environmentally friendly aerobic fermentation chamber for liquid organic waste includes a fermentation chamber 1 and a biofilter 14. The fermentation chamber 1 is equipped with a solid-liquid separation workshop 3, a sedimentation tank 4, an aerobic tank 5, and a clarification tank 6. The walls of the fermentation chamber 1 above ground are horseshoe-shaped. An n-shaped steel beam canopy 2 is provided on the outer side of the platform at the top of the horseshoe-shaped wall. A high-polymer waterproof and breathable membrane is covered on the arc surface of the n-shaped steel beam canopy 2. Double-layer polycarbonate panels are provided on the vertical surface of the n-shaped steel beam canopy 2. Multiple sets of exhaust pipes are provided on the n-shaped steel beam canopy 2. Each set of exhaust pipes is connected to an exhaust fan outside the fermentation chamber 1. The other end of the exhaust fan is connected to the biofilter 14.

[0008] Slide rails 9 are laid on the inner side of the horseshoe-shaped walls on both sides of sedimentation tank 4, aerobic tank 5 and clarification tank 6 and along the length of fermentation chamber 1. A movable stirring component is installed on the slide rails 9, which can slide left and right on the slide rails 9.

[0009] The biological filter 14 is a cube cast in concrete. An air inlet 1401 is provided on the lower part of the side of the biological filter 14. A base 1402 is provided inside the biological filter 14 and above the air inlet 1401. A fiberglass grating 1403 is laid on the base 1402. A stainless steel mesh 1404 is laid on the fiberglass grating 1403. Filter material 1405 is filled on the stainless steel mesh 1404. The filter material 1405 is a mixture of corn cob, sawdust, organic fertilizer and biological enzyme. A cover 1406 is provided on the top of the biological filter 14 to prevent rainwater from entering the biological filter 14 and wetting the filter material 1405.

[0010] The beneficial effects of this utility model are as follows: This utility model proposes an environmentally friendly aerobic fermentation chamber for liquid organic waste. The collected organic waste is separated into solid and liquid components in a solid-liquid separation workshop. The separated liquid organic waste is then fermented in the fermentation chamber of this utility model. The liquid organic waste is placed in a sedimentation tank, an aerobic tank, and a clarification tank for fermentation, allowing sufficient time for fermentation and complete transformation into liquid organic fertilizer. When discharged again, this fertilizer increases the trace elements in the soil and improves soil looseness, without causing secondary pollution, thereby promoting the circular development of agriculture and animal husbandry.

[0011] During the fermentation of liquid organic waste, a blade mixer is used to agitate the liquid in the sedimentation tank, aerobic tank, and clarification tank. Gas is also supplied to the sedimentation tank, aerobic tank, and clarification tank through aerobic aeration pipelines, thereby increasing the oxygen content in these tanks. In addition, the two sets of blade mixers rotate in opposite directions, making the mixing more uniform. The blade mixers can also move back and forth on the overhead crane, allowing them to mix at different locations within the tank. The hydraulic lifting components can lift and lower the blade mixers, enabling them to move up and down and facilitating their lifting and repositioning for mixing.

[0012] Sedimentation tanks, aerobic tanks, and clarification tanks produce unpleasant odors during the fermentation of liquid organic waste. These odors can easily cause secondary pollution when released into the air. Therefore, in this invention, multiple sets of exhaust pipes installed on an n-shaped steel beam are used to exhaust the odors. The main exhaust pipe in the exhaust pipe is connected to an exhaust fan outside the fermentation chamber, and the other end of the exhaust fan is connected to a biological filter. The odors inside the fermentation chamber are discharged into the biological filter through branch pipes on the main exhaust pipe. The odors are then filtered and discharged through the packing material in the biological filter. This ensures that no unpleasant odors are generated outside the fermentation chamber during the fermentation of liquid organic waste, and that the filtered gas released into the air does not cause secondary pollution to the atmosphere.

[0013] A high-polymer waterproof and breathable membrane is covered on the curved surface of the n-shaped steel beam, allowing water vapor generated inside the fermentation chamber to pass through the membrane while the resulting unpleasant odor remains inside. Double-layer polycarbonate panels are installed on the vertical surfaces of the n-shaped steel beam, giving the fermentation chamber high insulation capacity and making it unaffected by temperature, allowing it to be used normally even in winter. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the environmentally friendly aerobic fermentation chamber for liquid organic waste of this utility model.

[0015] Figure 2 This is a schematic diagram of the fermentation chamber in the environmentally friendly aerobic fermentation chamber for liquid organic waste of this utility model, and this diagram is also included as an abstract drawing.

[0016] Figure 3 This is a schematic diagram of the solid-liquid separation workshop in the environmentally friendly aerobic fermentation chamber for liquid organic waste of this utility model.

[0017] Figure 4 This is a schematic diagram of the aerobic aeration pipelines laid at the bottom of the sedimentation tank, aerobic tank, and clarification tank in the environmentally friendly liquid organic waste aerobic fermentation chamber of this utility model.

[0018] Figure 5This is a schematic diagram of the structure connecting the exhaust pipe and the biological filter in the environmentally friendly aerobic fermentation chamber for liquid organic waste of this utility model.

[0019] Figure 6 This is a schematic diagram of the mobile stirring component in the environmentally friendly aerobic fermentation chamber for liquid organic waste of this utility model. Detailed Implementation

[0020] The present invention will be further described below.

[0021] like Figure 2 and Figure 3 As shown, the solid-liquid separation workshop 3 includes a parking and unloading area 303 and a separation area 304. The parking and unloading area 303 is equipped with a liquid collection tank, and a grating 301 is installed on the liquid collection tank. When a vacuum truck enters the parking and unloading area 303, leachate will flow out because the organic waste inside the vacuum truck is in a mixed state. The outflowing leachate will enter the liquid collection tank through the grating 301, preventing leachate accumulation in the parking and unloading area 303. The grating 301 also prevents the vacuum truck from accidentally entering the liquid collection tank, which could cause safety issues. Potential hazards: The separation zone 304 is divided into upper and lower parts. The lower part is a temporary storage tank 302, which is a submerged design used to collect the outflowing leachate and the separated liquid organic waste. The temporary storage tank 302 is connected to the liquid collection tank, allowing the liquid organic waste collected in the liquid collection tank to flow directly into the temporary storage tank 302. A cover plate is cast on the upper surface of the temporary storage tank 302, and the cover plate is at the same height as the ground of the parking and unloading area 303. A solid-liquid separator 305 is installed on the cover plate for solid-liquid separation of the collected organic waste. The temporary storage tank 302 is equipped with a level gauge 306, a foundation pit 7, and a pumping system 8. Both the level gauge 306 and the pumping system 8 are connected to the PC via signal connection. The temporary storage tank 302 is connected to the sedimentation tank 4 through the pumping system 8.

[0022] Specifically, the organic waste in the vacuum truck is separated by a solid-liquid separator 305. The number of solid-liquid separators 305 can be set according to the amount of organic waste to be separated. The separated liquid organic waste is directly stored in a temporary storage tank 302, while the separated solid organic waste is pulled out of the fermentation chamber 1 for separate processing. A level gauge 306 connected to a PC is installed in the temporary storage tank 302. The liquid level height of the level gauge 306 is preset to control the liquid level height of the liquid organic waste in the temporary storage tank 302. When the liquid level reaches the preset height of the level gauge 306, the PC controls the pumping system 8 in the temporary storage tank 302 to pump the liquid organic waste in the temporary storage tank 302 to the sedimentation tank 4 for fermentation.

[0023] like Figure 2As shown, the solid-liquid separation workshop 3, sedimentation tank 4, aerobic tank 5, and clarification tank 6 are arranged sequentially. Sedimentation tank 4, aerobic tank 5, and clarification tank 6 all adopt a sunken structure design. Separation walls at ground level are installed between sedimentation tank 4 and aerobic tank 5, and between aerobic tank 5 and clarification tank 6, with maintenance access at the top of the partition walls. A foundation pit 7 is located at the bottom of each of the sedimentation tanks 4, aerobic tank 5, and clarification tank 6, and a pumping system 8 is installed within the foundation pit 7. The pumping system 8 is connected to the PC via a signal connection. The foundation pit 7 ensures that the pumping system 8 can completely pump out liquid organic waste. Sedimentation tank 4, aerobic tank 5, and clarification tank 6 are connected via the pumping system 8. Figure 4 As shown, multiple sets of aerobic aeration pipelines are laid at the bottom of sedimentation tank 4, aerobic tank 5 and clarification tank 6. After the aerobic aeration pipelines are laid, they are poured with fine stone concrete for a second time, and the pouring thickness is flush with the aerobic aeration pipelines.

[0024] like Figure 4 As shown, the aerobic aeration pipeline includes a main pipeline 12 and branch pipelines 1201. The main pipeline 12 leads out of the fermentation chamber 1 and connects to the aeration blower. One set of aerobic aeration pipelines is connected to one aeration blower. Multiple branch pipelines 1201 are evenly fixed on the main pipeline 12. Multiple aeration holes 1202 are opened on the upward side of the branch pipeline 1201. Gas is delivered to the sedimentation tank 4, aerobic tank 5 and clarification tank 6 through the aeration holes 1202.

[0025] Specifically, the liquid organic waste pumped into sedimentation tank 4 undergoes fermentation. During fermentation, gas is supplied to sedimentation tank 4 through multiple aeration holes 1202 on branch pipe 1201 to increase the oxygen content in the fermenting liquid organic waste, ensuring thorough fermentation. After 10-15 days of fermentation, the PC controls the activation of the pumping system 8 at the bottom of sedimentation tank 4 to pump the fermenting liquid organic waste into aerobic tank 5. Similarly, during fermentation, gas is supplied to the aerobic tank to increase the oxygen content, allowing the liquid organic waste to continue fermenting for another 10-15 days. Then, the PC controls the activation of the pumping system 8 at the bottom of aerobic tank 5 to pump the waste into the aerobic tank. The liquid organic waste fermented in tank 5 is pumped to clarification tank 6. During the fermentation process, gas is introduced into clarification tank 6 to increase the oxygen content, allowing the liquid organic waste to continue fermenting for 10 to 15 days. After being fermented by temperature increase in sedimentation tank 4, aerobic tank 5, and clarification tank 6, the liquid organic waste kills diseases, pests, and harmful substances in the material and is transformed into liquid organic fertilizer. The liquid organic fertilizer is then transported to the field for application by liquid transport vehicles. In spring and summer, it is combined with drip irrigation and applied scientifically based on soil testing and formula. In autumn and winter, it is directly sprayed on the ground or used for fertilization of vegetables and Chinese medicinal herbs in greenhouses by fertilizer trucks. This integrated approach centralizes the treatment of manure and sewage generated by traditional animal husbandry and humans, enabling waste reuse.

[0026] like Figure 5 As shown, the exhaust duct system includes a main exhaust duct 13 and branch ducts 1301. The main exhaust duct 13 is installed along the length of the fermentation chamber 1. Multiple branch ducts 1301 are evenly fixed to the downward-facing side of the main exhaust duct 13. Both the main exhaust duct 13 and the branch ducts 1301 are made of PVC. The diameter of the main exhaust duct 13 is 300mm, and the diameter of the branch ducts 1301 is 200mm. The branch ducts 1301 fixed to the main exhaust duct 13 are spaced 2m apart. The exhaust duct system can be configured into multiple sets according to the length of the fermentation chamber 1, and each set of exhaust ducts connects to an exhaust fan and a biological filter 14.

[0027] Specifically, when liquid organic waste ferments in fermentation chamber 1, it produces a large amount of odorous gases and water vapor. The water vapor can be discharged through the polymer waterproof and breathable membrane on the arc surface of the n-shaped steel beam shed 2, while the unpleasant odor will not. The polymer waterproof and breathable membrane can effectively block the odorous gases from being discharged outside fermentation chamber 1. The odorous gases in fermentation chamber 1 will enter the main exhaust pipe through the branch pipe, and then be transported to the biological filter 14 by the exhaust fan connected to the main exhaust pipe. The odorous gases are enzymatically absorbed by the filter material 1405 filled in the biological filter 14, which solves the problem of odorous gases produced during fermentation, making the filtered odorless gases odorless and discharged into the air, thus avoiding pollution of the atmosphere by odorous gases.

[0028] like Figure 6 As shown, the mobile mixing assembly includes a crane 10, blade mixers 11, and a hydraulic lifting component 15. The mobile mixing assembly is electrically connected to a PC for remote control of its operation. The crane 10 is mounted on a slide rail 9, and two sets of blade mixers 11 are symmetrically mounted on the crane 10. The two sets of blade mixers 11 can move synchronously back and forth on the crane 10. The vertical movement of the two sets of blade mixers 11 is achieved through the hydraulic lifting component 15 mounted on the crane 10.

[0029] Specifically, during the fermentation process of liquid organic waste, in addition to increasing the oxygen content by supplying gas into the tank through the aeration holes 1202, the oxygen content can also be increased by stirring the liquid organic waste. The trolley 10 in the mobile stirring assembly is mounted on the slide rail 9, and the trolley 10 can move left and right on the slide rail 9, so that the blade mixer 11 can switch to different tanks in the fermentation chamber 1 for stirring according to the stirring needs. The two sets of blade mixers 11 on the trolley 10 rotate in opposite directions during stirring, making the stirring more stable and uniform, and increasing the oxygen content of the fermenting liquid organic waste in the tank through stirring, thereby making the fermentation of liquid organic waste more complete. Two sets of blade mixers 11 mounted on the overhead crane 10 can move freely back and forth on the crane 10 via remote control. When the blade mixers 11 need to change the tank body for mixing, the two sets of blade mixers 11 can be lifted upwards by the hydraulic lifting component 15. After changing the tank body, the two sets of blade mixers 11 can be lowered into the tank body for mixing by the hydraulic lifting component 15. By setting the slide rail 9 and the movable mixing component, the blade mixers 11 can be mixed at different positions in the fermentation chamber 1, so that the liquid organic waste is evenly dispersed during the fermentation process, and the fermentation is complete and sufficient.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly aerobic fermentation chamber for liquid organic waste, characterized in that, It includes a fermentation chamber (1) and a biological filter (14). The fermentation chamber (1) is equipped with a solid-liquid separation workshop (3), a sedimentation tank (4), an aerobic tank (5), and a clarification tank (6). The walls of the fermentation chamber (1) above the ground are horseshoe-shaped. An n-shaped steel beam shed (2) is provided on the outside of the top platform of the horseshoe-shaped wall. A high-polymer waterproof and breathable membrane is covered on the arc surface of the n-shaped steel beam shed (2). Double-layer polycarbonate panels are provided on the vertical surface of the n-shaped steel beam shed (2). Multiple sets of exhaust pipes are provided on the n-shaped steel beam shed (2). Each set of exhaust pipes is connected to an exhaust fan outside the fermentation chamber (1). The other end of the exhaust fan is connected to the biological filter (14). Slide rails (9) are laid on the inner side of the horseshoe-shaped walls on both sides of the sedimentation tank (4), aerobic tank (5) and clarification tank (6) and along the length of the fermentation chamber (1). A movable stirring component is provided on the slide rails (9), which can slide left and right on the slide rails (9). The biological filter (14) is a cube made of concrete. An air inlet (1401) is provided on the lower part of the side of the biological filter (14). A base (1402) is provided inside the biological filter (14) and above the air inlet (1401). A fiberglass grating (1403) is laid on the base (1402). A stainless steel mesh (1404) is laid on the fiberglass grating (1403). Filter material (1405) is filled on the stainless steel mesh (1404). The filter material (1405) is a mixture of corn cob, sawdust, organic fertilizer and biological enzyme. A cover (1406) is provided on the top of the biological filter (14) to prevent rainwater from entering the biological filter (14) and wetting the filter material (1405).

2. The environmentally friendly aerobic fermentation chamber for liquid organic waste according to claim 1, characterized in that, The solid-liquid separation workshop (3) is equipped with a parking and unloading area (303) and a separation area (304). The parking and unloading area (303) is equipped with a liquid collection tank and a water grate (301) on the liquid collection tank. The separation area (304) is divided into upper and lower parts. The lower part is a temporary storage tank (302), which is a sunken design and is used to collect the dripping and separated liquid organic waste. The temporary storage tank (302) is connected to the liquid collection tank so that the liquid organic waste collected in the liquid collection tank can flow directly into the temporary storage tank (302). A cover plate is cast on the upper surface of the temporary storage tank (302). The cover plate is at the same height as the ground of the parking and unloading area (303), and a solid-liquid separator (305) is installed on the cover plate to perform solid-liquid separation on the collected organic waste.

3. The environmentally friendly aerobic fermentation chamber for liquid organic waste according to claim 2, characterized in that, The temporary storage tank (302) is equipped with a level gauge (306), a pit (7) and a pumping system (8). The level gauge (306) and the pumping system (8) are both connected to the PC via signal. The temporary storage tank (302) is connected to the sedimentation tank (4) through the pumping system (8).

4. The environmentally friendly aerobic fermentation chamber for liquid organic waste according to claim 1, characterized in that, The solid-liquid separation workshop (3), sedimentation tank (4), aerobic tank (5), and clarification tank (6) are arranged in sequence. The sedimentation tank (4), aerobic tank (5), and clarification tank (6) all adopt a sunken structure design. There are partition walls at the same height as the ground between the sedimentation tank (4) and the aerobic tank (5), and between the aerobic tank (5) and the clarification tank (6). There is a maintenance passage at the top of the partition wall. There are also facilities at the bottom of the sedimentation tank (4), aerobic tank (5), and clarification tank (6). The foundation pit (7) is equipped with a pumping system (8). The pumping system (8) is connected to the PC terminal by a signal. The sedimentation tank (4), aerobic tank (5) and clarifier (6) are connected by the pumping system (8). Multiple sets of aerobic aeration pipelines are laid at the bottom of the sedimentation tank (4), aerobic tank (5) and clarifier (6). After the aerobic aeration pipelines are laid, they are poured with fine stone concrete for a second time, and the pouring thickness is flush with the aerobic aeration pipelines.

5. The environmentally friendly aerobic fermentation chamber for liquid organic waste according to claim 4, characterized in that, The aerobic aeration pipeline includes a main pipeline (12) and branch pipelines (1201). The main pipeline (12) leads out of the fermentation chamber (1) and connects to the aeration blower. Multiple branch pipelines (1201) are evenly fixed on the main pipeline (12). Multiple aeration holes (1202) are opened on the upward side of the branch pipeline (1201). Gas is transported to the sedimentation tank (4), aerobic tank (5) and clarification tank (6) through the aeration holes (1202).

6. The environmentally friendly aerobic fermentation chamber for liquid organic waste according to claim 1, characterized in that, The exhaust duct includes a main exhaust duct (13) and branch ducts (1301). The main exhaust duct (13) is set along the length of the fermentation chamber (1), and multiple branch ducts (1301) are evenly fixed to the downward side of the main exhaust duct (13).

7. The environmentally friendly aerobic fermentation chamber for liquid organic waste according to claim 1, characterized in that, The mobile mixing assembly includes a crane (10), a blade mixer (11), and a hydraulic lifting component (15). The crane (10) is mounted on a slide rail (9), and two sets of blade mixers (11) are symmetrically mounted on the crane (10). The two sets of blade mixers (11) can move back and forth synchronously on the crane (10). The up and down movement of the two sets of blade mixers (11) is achieved by the hydraulic lifting component (15) mounted on the crane (10).

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