Livestock and poultry farm sewage fermentation tank and sewage fermentation system

Abstract

The utility model belongs to the technical field of sewage treatment, and relates to a livestock and poultry farm sewage fermentation tank and a sewage fermentation system, which comprise a foundation pit, a bottom film and a pressure tank, an inner cavity of the foundation pit is a fermentation cavity, and the longitudinal section of the foundation pit is in an inverted trapezoid shape. The bottom film is laid on the inner wall of a foundation pit; the pressing groove is formed in the open end of the foundation pit, and the bottom film is connected with the pressing groove. The bottom film is laid on the inner wall of the foundation pit, the pressing groove is installed at the opening end of the foundation pit and connected with the bottom film, construction of the livestock and poultry farm sewage fermentation pool is completed, the construction period is short, and the construction cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a sewage fermentation tank and a sewage fermentation system for livestock and poultry farms. Background Art

[0002] Livestock and poultry wastewater refers to the wastewater generated during the livestock and poultry breeding process, including livestock and poultry manure, feed residues, flushing water, etc.

[0003] There is some research on the treatment of sewage from livestock and poultry farms in the prior art. Referring to the patent document with application number 202021519733.3, a sewage treatment system for a farm is disclosed, including a disinfection tank, an oxidation tank, a drying mechanism and a base. The base is made of concrete, and a manure tank is formed on the top of the base through concrete, and a wastewater tank is formed on one side of the manure tank through concrete, and a regulating tank is formed on one side of the wastewater tank. An oxidation tank is formed at one end of the regulating tank, and a carbon particle filter tank is formed at one end of the oxidation tank through concrete, and a stone sand filter tank is formed on one side of the carbon particle filter tank through concrete, and a flocculation tank is formed on one side of the stone sand filter tank through concrete, and a base is formed on one side of the flocculation tank through concrete, and a control panel is fixedly installed on one side of the base by bolts, and a single-chip microcomputer is embedded in the inside of the control panel; in the sewage treatment system for a farm, the base, wastewater tank, regulating tank and oxidation tank are all made of concrete.

[0004] It can be seen that in the sewage treatment system of livestock and poultry farms, the fermentation tank is made of concrete, which has a long construction period and high construction cost. Utility Model Content

[0005] In order to solve the technical problem in the background technology that the fermentation tank is built with concrete, has a long construction period and high construction cost, the utility model provides a livestock and poultry farm sewage fermentation tank and a sewage fermentation system.

[0006] The utility model provides a livestock and poultry farm sewage fermentation tank, wherein a bottom membrane is laid on the inner wall of a foundation pit, and a pressing groove is installed at the opening end of the foundation pit and connected to the bottom membrane, thereby completing the construction of the livestock and poultry farm sewage fermentation tank, with a short construction period and low construction cost.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0008] A livestock and poultry farm sewage fermentation tank comprises a foundation pit, a bottom membrane and a pressure groove; the inner cavity of the foundation pit is a fermentation cavity, and the longitudinal section of the foundation pit is an inverted trapezoid; the bottom membrane is laid on the inner wall of the foundation pit; the pressure groove is installed at the opening end of the foundation pit, and the bottom membrane is connected to the pressure groove.

[0009] In a specific possible implementation manner, the livestock and poultry farm wastewater fermentation tank further includes a connecting pipe and an inspection well; the inspection well is connected to the connecting pipe, and the connecting pipe penetrates the bottom membrane and is connected to the fermentation chamber.

[0010] In a specific possible implementation manner, the livestock and poultry farm wastewater fermentation tank further comprises a top membrane connected to the open end of the foundation pit; the top membrane is connected to the bottom membrane via a pressure groove.

[0011] In a specific possible implementation manner, an exhaust pipe is provided on the top membrane.

[0012] In a specific possible implementation manner, the livestock and poultry farm wastewater fermentation tank further comprises a pressure layer; the pressure layer is filled in a pressure groove, and the bottom film and the top film both extend into the pressure layer.

[0013] A livestock and poultry farm sewage fermentation system comprises a sewage collecting tank, wherein the sewage collecting tank collects livestock and poultry farm sewage. The livestock and poultry farm sewage fermentation system further comprises a fermentation zone 1 formed based on the livestock and poultry farm sewage fermentation tank, and a fermentation zone 2 formed based on the livestock and poultry farm sewage fermentation tank; the sewage collecting tank, the fermentation zone 1 and the fermentation zone 2 are sequentially connected from front to back, and the fermentation zone 1 performs anaerobic fermentation, and the fermentation zone 2 performs aerobic fermentation.

[0014] In a specific implementation scheme, the fermentation zone 1 further includes a circulation pipeline and a circulation pump; the circulation pipeline penetrates the bottom membrane in the fermentation zone 1 and communicates with the fermentation chamber; the circulation pump is installed at one end of the circulation pipeline.

[0015] In a specific implementation scheme, the fermentation zone 2 further includes a blower and an aeration pipe; the aeration pipe penetrates the bottom membrane in the fermentation zone 2 and is connected with the fermentation zone 2; the blower is installed at one end of the aeration pipe.

[0016] In a specific possible implementation manner, the livestock and poultry farm wastewater fermentation system further includes a separation zone formed based on the livestock and poultry farm fermentation tank described above; the separation zone is connected to the second fermentation zone.

[0017] In a specific possible implementation manner, the livestock and poultry farm wastewater fermentation system further includes a storage area formed based on the above-mentioned livestock and poultry farming water fermentation tank; the storage area is connected to the separation area.

[0018] In summary, the utility model includes the following beneficial technical effects:

[0019] 1. The utility model of the livestock and poultry farm sewage fermentation tank is constructed by laying a bottom membrane on the inner wall of the foundation pit, installing a press groove at the open end of the foundation pit and connecting it with the bottom membrane, thus completing the construction of the livestock and poultry farm sewage fermentation tank, with a short construction period and low construction cost.

[0020] 2. In the livestock and poultry farm wastewater fermentation system of the utility model, the top membrane is connected to the bottom membrane through the pressure groove, so that a closed fermentation chamber is formed between the bottom membrane and the top membrane, which is convenient for realizing anaerobic fermentation of livestock and poultry farm wastewater in the fermentation area 1. Preferably, the pressure groove is filled with a pressure layer to improve the sealing of the fermentation chamber, thereby improving the fermentation effect of livestock and poultry farm wastewater.

[0021] 3. In the utility model of the livestock and poultry farm sewage fermentation system, the fermentation zone 1, the fermentation zone 2, the separation zone and the storage zone are all connected to an inspection well through a connecting pipe. When the sludge amount in any of the fermentation zone 1, the fermentation zone 2, the separation zone and the storage zone reaches a certain value, the sludge is cleaned through the connecting pipe to prevent excessive sludge from affecting the treatment effect of the livestock and poultry farm sewage.

[0022] 4. In the livestock and poultry farm wastewater fermentation system of the utility model, the livestock and poultry farm wastewater is subjected to anaerobically fermentation in the fermentation zone 1 to obtain a high-concentration supernatant, and a low-concentration supernatant is obtained in the storage zone. Operators can choose to return the high-concentration supernatant in the fermentation zone 1 or the low-concentration supernatant in the storage zone to the field for utilization according to demand. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of a sewage fermentation tank for livestock and poultry farms according to the utility model.

[0024] Figure 2 It is a schematic diagram of the overall structure of a sewage fermentation tank for livestock and poultry farms of the utility model, and is intended to illustrate the pressing grooves and pressing layers.

[0025] Figure 3 It is a schematic diagram of the overall structure of a sewage fermentation system for livestock and poultry farms of the utility model.

[0026] Figure 4 It is a schematic diagram of the formation of the sewage fermentation system of the livestock and poultry breeding farm of the utility model.

[0027] Explanation of the reference numerals in the accompanying drawings: 1. Livestock and poultry farm sewage fermentation tank; 11. Foundation pit; 12. Bottom membrane; 13. Pressed trough; 14. Connecting pipe; 15. Inspection well; 16. Top membrane; 17. Exhaust pipe; 18. Pressed layer; 2. Fermentation zone 1; 21. Circulation pipeline; 22. Circulation pump; 3. Fermentation zone 2; 31. Blower; 32. Aeration pipe; 4. Separation zone; 5. Storage zone. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-4 The utility model is described in further detail.

[0029] The utility model discloses a sewage fermentation tank for livestock and poultry breeding farms.

[0030] Reference Figure 1 and Figure 2A livestock and poultry farm sewage fermentation tank comprises a foundation pit 11, a bottom film 12 and a pressing groove 13. The inner cavity of the foundation pit 11 is a fermentation cavity, and the longitudinal section of the foundation pit 11 is an inverted trapezoid; the bottom film 12 is laid on the inner wall of the foundation pit 11; the pressing groove 13 is installed at the opening end of the foundation pit 11, and the bottom film 12 is connected to the pressing groove 13, and the bottom film 12 extends along the inner wall of the foundation pit 11 to the opening end of the foundation pit 11 and is folded into the pressing groove 13. Specifically, in the present application, the bottom film 12 and the pressing groove 13 can be connected by hot melt connection, bonding, etc., and any setting method that can achieve the connection between the bottom film 12 and the pressing groove 13 is acceptable; the groove depth range of the pressing groove 13 is 1 meter-1.2 meters, and can be specifically set to 1 meter, 1.1 meters, 1.2 meters, etc., so as to increase the contact area between the bottom film 12 and the pressing groove 13 and improve the connection stability between the bottom film 12 and the pressing groove 13; the longitudinal section of the foundation pit 11 can be an inverted trapezoid, trapezoid, rectangle, etc., and can be set according to the actual needs of the livestock and poultry farm. Preferably, the longitudinal section of the foundation pit 11 is an inverted trapezoid.

[0031] The utility model completes the construction of the livestock and poultry farm sewage fermentation tank by laying a bottom film 12 on the inner wall of a foundation pit 11, installing a pressing groove 13 at the open end of the foundation pit 11 and connecting with the bottom film 12, and thus the construction period is short and the construction cost is low.

[0032] Embodiment 1:

[0033] This embodiment is a livestock and poultry farm sewage fermentation tank, referring to Figure 1 and Figure 2 In this embodiment, the livestock and poultry farm sewage fermentation tank 1 further includes a connecting pipe 14 and an inspection well 15. The inspection well 15 is connected to the connecting pipe 14, and the connecting pipe 14 penetrates the bottom membrane 12 and is connected to the fermentation chamber. A liquid level sensor is installed in the livestock and poultry farm sewage fermentation tank 1 to monitor the amount of sludge. When the amount of sludge in the livestock and poultry farm sewage fermentation tank 1 reaches a critical value, the sludge in the livestock and poultry farm sewage fermentation tank 1 is discharged through the connecting pipe 14 to prevent excessive sludge from affecting the treatment effect of livestock and poultry farm sewage.

[0034] Embodiment 2:

[0035] Reference Figure 1 and Figure 2 In the livestock and poultry farm sewage fermentation tank of this embodiment, on the basis of embodiment 1, the livestock and poultry farm sewage fermentation tank 1 further includes a top film 16 connected to the open end of the foundation pit 11. The top film 16 is connected to the bottom film 12 through the pressure groove 13. The gas generated by the fermentation of farm sewage fills the fermentation chamber and supports the top film 16. The top film 16 and the pressure groove 13 can be connected by hot melt, bonding, etc., but any setting method that realizes the connection between the top film 16 and the pressure groove 13 is acceptable. In this embodiment, the top film 16 and the bottom film 12 are both connected to the pressure groove 13 by hot melt.

[0036] Embodiment 3:

[0037] Reference Figure 1 and Figure 2 In the livestock and poultry farm sewage fermentation tank of this embodiment, on the basis of embodiment 2, an exhaust pipe 17 is provided on the top membrane 16. Gas is released during the fermentation of livestock and poultry farm sewage, and the gas gradually fills the fermentation chamber and props up the top membrane 16. The pressure in the livestock and poultry farm sewage fermentation tank 1 increases, affecting the fermentation speed of the livestock and poultry farm sewage. The exhaust pipe 17 can be installed to discharge the gas in time to avoid excessive pressure in the livestock and poultry farm sewage fermentation tank 1, thereby ensuring the smooth fermentation of livestock and poultry farm sewage, and effectively controlling the fermentation speed to ensure the fermentation effect of livestock and poultry farm sewage.

[0038] Embodiment 4:

[0039] Reference Figure 1 and Figure 2 The livestock and poultry farm wastewater fermentation tank of this embodiment, on the basis of embodiment 3, further includes a pressure layer 18. The pressure layer 18 is filled in the pressure groove 13, and the bottom film 12 and the top film 16 both extend into the pressure layer 18; the pressure groove 13 is filled with the pressure layer 18 to improve the sealing of the fermentation chamber, thereby improving the fermentation effect of livestock and poultry farm wastewater. Specifically, the pressure layer 18 can be set as a soil layer, melamine foam, lightweight concrete, etc., and any setting method that improves the sealing of the fermentation chamber by setting the pressure layer 18 is acceptable.

[0040] The utility model discloses a construction method of a sewage fermentation tank for livestock and poultry farms: first, excavating a foundation pit 11; second, laying a bottom film 12 along the inner wall of the foundation pit 11; third, installing a pressing groove 13 at the open end of the foundation pit 11; finally, extending the bottom film 12 along the inner wall of the foundation pit 11 to the open end of the foundation pit 11 and folding it into the pressing groove 13, thus completing the construction of the sewage fermentation tank 1 for livestock and poultry farms.

[0041] The utility model discloses a sewage fermentation system for livestock and poultry breeding farms.

[0042] Reference Figure 3 and Figure 4 , a livestock and poultry farm sewage fermentation system, comprising a sewage collection tank, a fermentation zone 1 2 formed based on the livestock and poultry farm sewage fermentation tank 1 of Example 3, and a fermentation zone 2 3 formed based on the livestock and poultry farm sewage fermentation tank 1 of Example 1. The sewage collection tank collects livestock and poultry farm sewage, and the sewage collection tank, the fermentation zone 1 2, and the fermentation zone 2 3 are sequentially connected from front to back through a gravity pipe, and the fermentation zone 1 2 performs anaerobic fermentation, and the fermentation zone 2 3 performs aerobic fermentation. Specifically, the fermentation zone 1 2 performs a primary biodegradation of the livestock and poultry farm sewage through anaerobic fermentation to obtain a high-concentration supernatant, and the high-concentration supernatant can be returned to the field for utilization; the fermentation zone 2 3 performs a secondary biodegradation of the livestock and poultry farm sewage through aerobic fermentation, degrading the macromolecular organic matter in the livestock and poultry farm sewage into small-molecule organic matter, while removing some pollutants.

[0043] Embodiment 5:

[0044] This embodiment is a livestock and poultry farm wastewater fermentation system, referring to Figure 3 and Figure 4 In this embodiment, the fermentation zone 1 2 further includes a circulation pipe 21 and a circulation pump 22. The circulation pipe 21 penetrates the bottom membrane 12 in the fermentation zone 1 2 and communicates with the fermentation chamber; the circulation pump 22 is installed at one end of the circulation pipe 21. The circulation pump 22 and the circulation pipe 21 are arranged so that the livestock and poultry farm sewage in the fermentation chamber is mixed evenly, and the fermentation efficiency and fermentation effect of the livestock and poultry farm sewage are improved. At the same time, the sewage fermentation efficiency of the fermentation zone 1 2 is improved by arranging the circulation pipe 21 and the circulation pump 22, the reaction cycle is short, and there is no need to build a large-capacity fermentation tank, which saves costs.

[0045] Embodiment 6:

[0046] Reference Figure 3 and Figure 4 In the livestock and poultry farm wastewater fermentation system of this embodiment, on the basis of embodiment 5, the fermentation zone 2 3 further includes a blower 31 and an aeration pipe 32. The aeration pipe 32 penetrates the bottom membrane 12 in the fermentation zone 2 3 and is connected with the fermentation zone 2 3; the blower 31 is installed at one end of the aeration pipe 32. The blower 31 provides gas power for the aeration pipe 32, and the aeration pipe 32 evenly distributes the air in the livestock and poultry farm wastewater in the fermentation zone 2 3 in the form of fine bubbles, ensuring the smooth progress of aerobic fermentation in the fermentation zone 2 3. At the same time, by setting the blower 31 and the aeration pipe 32, the wastewater fermentation efficiency of the fermentation zone 2 3 is ensured, the reaction cycle is short, and there is no need to build a large-capacity fermentation tank, saving costs.

[0047] Embodiment 7:

[0048] Reference Figure 3 and Figure 4 The livestock and poultry farm wastewater fermentation system of this embodiment, on the basis of embodiment 6, further includes a separation zone 4 formed based on the livestock and poultry farm wastewater fermentation tank 1 of embodiment 1. The separation zone 4 is connected with the second fermentation zone 3 through a gravity pipe. Specifically, the farm wastewater flowing from the second fermentation zone 3 to the separation zone 4 is settled in the separation zone 4, and the farm wastewater in the separation zone 4 includes a low-concentration supernatant and a lower layer of turbid matter.

[0049] Embodiment 8:

[0050] Reference Figure 3 and Figure 4 The livestock and poultry farm wastewater fermentation system of this embodiment, on the basis of embodiment 7, further includes a storage area 5 formed by the livestock and poultry farm wastewater fermentation tank 1 of embodiment 1. The storage area 5 is connected to the separation area 4 through a gravity pipe. Specifically, the low-concentration supernatant of the separation area 4 flows into the storage area 5 through the gravity pipe, and the low-concentration supernatant can be returned to the field for utilization.

[0051] The implementation principle of the livestock and poultry farm sewage fermentation system of the utility model is as follows: a sewage collecting pool collects livestock and poultry farm sewage, the sewage in the sewage collecting pool flows into a fermentation zone 1 2 through a gravity pipe, the fermentation zone 1 2 performs primary biodegradation on the livestock and poultry farm sewage through anaerobic fermentation, the sewage after the primary biodegradation flows into a fermentation zone 2 3 through a gravity pipe, the fermentation zone 2 performs secondary biodegradation on the livestock and poultry farm sewage through aerobic fermentation, and degrades the macromolecular organic matter in the livestock and poultry farm sewage into small molecular organic matter, and removes part of the pollutants at the same time, thereby realizing the treatment of livestock and poultry farm sewage.

[0052] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A livestock and poultry farm sewage fermentation tank, characterized in that: It comprises a foundation pit (11), a bottom membrane (12) and a pressing groove (13); The inner cavity of the foundation pit (11) is a fermentation cavity, and the longitudinal section of the foundation pit (11) is an inverted trapezoid; The bottom membrane (12) is laid on the inner wall of the foundation pit (11); The pressing groove (13) is installed at the open end of the foundation pit (11), and the bottom membrane (12) is connected to the pressing groove (13).

2. The livestock and poultry farm wastewater fermentation tank according to claim 1, characterized in that: The livestock and poultry farm sewage fermentation tank (1) also includes a connecting pipe (14) and an inspection well (15); The inspection well (15) is connected to the connecting pipe (14), and the connecting pipe (14) penetrates the bottom membrane (12) and is connected to the fermentation chamber.

3. The livestock and poultry farm wastewater fermentation tank according to claim 2, characterized in that: The livestock and poultry farm wastewater fermentation tank (1) further comprises a top membrane (16) connected to the open end of the foundation pit (11); The top film (16) is connected to the bottom film (12) via the pressed groove (13).

4. The livestock and poultry farm wastewater fermentation tank according to claim 3, characterized in that: An exhaust pipe (17) is provided on the top membrane (16).

5. The livestock and poultry farm wastewater fermentation tank according to claim 4, characterized in that: The livestock and poultry farm wastewater fermentation tank (1) further comprises a pressure layer (18); The pressing layer (18) is filled in the pressing groove (13), and the bottom film (12) and the top film (16) both extend into the pressing layer (18).

6. A sewage fermentation system, comprising a sewage collection tank, wherein the sewage from livestock and poultry farms is collected in the sewage collection tank, characterized in that : The sewage fermentation system further comprises a fermentation zone 1 (2) formed based on the livestock and poultry farm sewage fermentation tank (1) according to claim 4, and a fermentation zone 2 (3) formed based on the livestock and poultry farm sewage fermentation tank (1) according to claim 2; The sewage collection tank, the first fermentation zone (2) and the second fermentation zone (3) are connected in sequence from front to back, and the first fermentation zone (2) performs anaerobic fermentation, while the second fermentation zone (3) performs aerobic fermentation.

7. The sewage fermentation system according to claim 6, characterized in that: The first fermentation zone (2) further comprises a circulation pipeline (21) and a circulation pump (22); The circulation pipeline (21) passes through the bottom membrane (12) in the first fermentation zone (2) and is connected to the fermentation chamber; The circulation pump (22) is installed at one end of the circulation pipeline (21).

8. The sewage fermentation system according to claim 7, characterized in that: The second fermentation zone (3) further comprises a blower (31) and an aeration pipe (32); The aeration pipe (32) penetrates the bottom membrane (12) in the second fermentation zone (3) and is in communication with the second fermentation zone (3); The blower (31) is installed at one end of the aeration pipe (32).

9. The sewage fermentation system according to claim 6, characterized in that : The sewage fermentation system further comprises a separation zone (4) formed based on the livestock and poultry farm sewage fermentation tank according to claim 2; The separation zone (4) is connected to the second fermentation zone (3).

10. The sewage fermentation system according to claim 6, characterized in that: The sewage fermentation system further comprises a storage area (5) formed based on the livestock and poultry farm sewage fermentation tank according to claim 2; The storage area (5) is in communication with the separation area (4).

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