CN211620302U - A micro biogas fermentation liquid treatment device - Google Patents

Abstract

The utility model discloses a miniature marsh gas zymotic fluid processing apparatus, which comprises a housin, the equalizing basin has set gradually side by side in the casing, one-level contact oxidation pond, second grade contact oxidation pond and sedimentation tank, equalizing basin and one-level contact oxidation pond intercommunication, one-level contact oxidation pond and second grade contact oxidation pond intercommunication, second grade contact oxidation pond and sedimentation tank intercommunication, be equipped with the fermentation waste water inlet tube on the lateral wall at the top of equalizing basin, be equipped with in one-level contact oxidation pond and the second grade contact oxidation pond and be used for the biological adnexed combination filler, the upper portion of the lateral wall of sedimentation tank is equipped with the overflow mouth, the bottom of the lateral wall of keeping away from second grade contact oxidation pond of sedimentation tank is equipped with row mud pipeline, be equipped with out the mud board in the bottom of sedimentation tank, row. The utility model has the advantages that: greatly improves the removal effect of pollutants in the fermentation liquor, and has the advantages of low operation energy consumption, low cost, strong impact load resistance and convenient maintenance.

Description

A micro biogas fermentation liquid treatment device

technical field

The utility model relates to the technical field of sewage treatment, in particular to a micro biogas fermentation liquid treatment device.

Background technique

In recent years, the discharge of domestic sewage in rural areas has shown a trend of high pollutant concentration and increased discharge with the improvement of residents' living conditions. It is difficult to deal with solids such as kitchen waste and human and animal manure. The kitchen waste and mixed domestic sewage are fermented together. , which can greatly save transportation, pipeline, labor and other costs, and at the same time generate biogas and save energy. The wastewater after biogas fermentation has high pollutant concentration and complex composition, and must be treated before it can be discharged into the environment. Among many fermentation wastewater treatment devices, small-scale wastewater treatment with stable operation, low energy consumption, simple operation and low operating cost The device has important application value in the improvement of rural living environment.

Utility model content

The technical problem to be solved by the utility model is to provide a micro biogas fermentation liquid treatment device, which greatly improves the removal effect of pollutants in the fermentation liquid, has low operation energy consumption, low cost, strong shock load resistance and easy maintenance.

The technical solution of the present invention to solve the above-mentioned technical problems is as follows: it comprises a casing, wherein a regulating tank, a first-level contact oxidation tank, a second-level contact oxidation tank and a sedimentation tank are arranged side by side in sequence, and the adjustment tank and the first The primary contact oxidation pond is communicated with the secondary contact oxidation pond, the secondary contact oxidation pond is communicated with the sedimentation pond, and the side wall of the top of the regulating pond is provided with fermentation The waste water inlet pipe, the first-level contact oxidation tank and the second-level contact oxidation tank are provided with combined fillers for biological attachment, the upper part of the side wall of the sedimentation tank is provided with an overflow port, and the sedimentation tank is far away from the surrounding area. The bottom of the side wall of the secondary contact oxidation tank is provided with a mud discharge pipe, the bottom of the sedimentation tank is provided with a mud discharge plate, and the mud discharge pipe is arranged above the mud discharge plate. A reserved pipe communicating with the inside of the adjustment tank is provided on the side wall of the upper part away from the first-stage contact oxidation tank, and a valve is provided at one end of the reserved pipe extending out of the adjustment tank.

The beneficial effects of the utility model are that the removal effect of pollutants in the fermentation liquid is greatly improved, the operation energy consumption is low, the cost is low, the shock load resistance is strong, and the maintenance is convenient.

On the basis of the above technical solutions, the utility model can also be improved as follows.

Further, the adjustment tank is communicated with the first-level contact oxidation tank through a first pipeline, the first-level contact oxidation tank is communicated with the second-level contact oxidation tank through a second pipeline, and the second-level contact oxidation tank is communicated with the second-level contact oxidation tank. The sedimentation tank is communicated through a third pipeline, one end of a fourth pipeline is arranged in the sedimentation tank, and the other end of the fourth pipeline passes through the side wall of the sedimentation tank and communicates with the overflow port.

The beneficial effects of adopting the above-mentioned further scheme are convenient maintenance and convenient operation.

On the basis of the above technical solutions, the utility model can also be improved as follows.

Further, the first pipe is arranged below the fermentation wastewater inlet pipe, and the installation positions of the fermentation wastewater inlet pipe, the second pipe, the third pipe and the fourth pipe are at a vertical height slowing shrieking.

The beneficial effect of adopting the above-mentioned further scheme is that the height difference of the water level is utilized, the power pump is not required, the energy consumption is low, and the cost is low.

The beneficial effect of adopting the above-mentioned further scheme is to intercept the solid matter in the biogas fermentation liquid.

On the basis of the above technical solutions, the utility model can also be improved as follows.

Further, a water inlet pipe is arranged in the adjustment tank, and one end of the water inlet pipe passes through the side wall of the adjustment tank and communicates with the fermentation wastewater inlet pipe.

The beneficial effects of adopting the above-mentioned further scheme are easy maintenance, convenient disassembly and assembly, and can be installed on the ground or buried in the ground.

On the basis of the above technical solutions, the utility model can also be improved as follows.

Further, one end of the first pipe close to the regulating tank is provided with a first grille, and one end of the water inlet pipe close to the fermentation waste water inlet pipe is provided with a second grille.

On the basis of the above scheme, the utility model can also be improved as follows.

Further, an aeration box is installed on the top of the first-level contact oxidation tank, an aerator is provided in the aeration box, and a plurality of layers are installed in the bottom of the first-level contact oxidation tank and the second-level contact oxidation tank. An anti-clogging aeration head, the output end of the aerator is communicated with one end of the aeration pipe, and the other end of the aeration pipe is communicated with a plurality of the aeration heads.

The beneficial effect of adopting the above-mentioned further scheme is to oxygenate the microorganisms on the mixed packing.

On the basis of the above scheme, the utility model can also be improved as follows.

Further, a manhole is provided on the top of the regulating tank, the first-level contact oxidation tank, the second-level contact oxidation tank and the sedimentation tank, and the manhole is provided with a cover for the manhole. Screw cover.

The beneficial effect of adopting the above-mentioned further scheme is that it is convenient for people to enter and carry out maintenance.

On the basis of the above scheme, the utility model can also be improved as follows.

Further, a heating rod is provided in the secondary contact oxidation tank.

The beneficial effect of adopting the above-mentioned further scheme is that in the case of low temperature, the water temperature can be adjusted, so that the biological activity can be maintained, and the removal efficiency of pollutants in the fermentation broth can be improved.

On the basis of the above scheme, the utility model can also be improved as follows.

Further, oil separators are provided on the side walls of the primary contact oxidation pool and the secondary contact oxidation pool.

The beneficial effect of adopting the above-mentioned further scheme is to use the natural floating method to separate and remove the slickable oil in the waste water by means of the oil-water specific gravity difference.

On the basis of the above scheme, the utility model can also be improved as follows.

Further, the mud plate is inclined downward from the side close to the secondary contact oxidation tank to the side away from the secondary contact oxidation tank, and the mud discharge pipeline is correspondingly connected to the mud plate and is located horizontally. Above the low end side.

The beneficial effects of adopting the above-mentioned further scheme are that the mud is easy to discharge and the operation is convenient.

Description of drawings

Fig. 1 is the front sectional view of the utility model;

Fig. 2 is the top view of the utility model;

In the figure: 1. Shell; 2. Regulating tank; 3. Primary contact oxidation tank; 4. Secondary contact oxidation tank; 5. Sedimentation tank; 6. Valve; 7. Reserved pipe; 8. Screw cover; 9. Manhole; 10. Water inlet pipe; 11. Fourth pipeline; 12. Aeration head; 13. Aerator; 14. Aeration pipe; 15. First pipeline; 16. Oil separator; 17. Overflow mouth; 18, the first grid; 19, the mud plate; 20, the mud discharge pipe; 21, the aeration head; 22, the combined packing; 23, the second grid; 24, the fermentation wastewater inlet pipe; 25, the heating plate ; 26, the second pipe; 27, the third pipe.

Detailed ways

In the description of the present utility model, it should be noted that the terms "up", "down", "front", "rear", "left", "right", "inside", "outer" etc. indicate the orientation or The positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the box or element referred to must have a specific orientation, be constructed and operation, so it cannot be construed as a limitation to the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. Detachable connection, or integral connection; it can be a mechanical connection or a circuit connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations. In addition, in the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more.

In order to make the purposes, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments of the present invention are some of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Example 1:

As shown in Figure 1-2, in this embodiment, a micro biogas fermentation liquid treatment device includes a housing 1, and the housing 1 is provided with an adjustment tank 2, a primary contact oxidation tank 3, and a secondary contact oxidation tank in sequence. Tank 4 and sedimentation tank 5, regulating tank 2 and first-level contact oxidation tank 3 are communicated through first pipeline 15, first-level contact oxidation tank 3 and second-level contact oxidation tank 4 are communicated through second pipeline 26, and second-level contact oxidation tank 4 It communicates with the sedimentation tank 5 through a third pipeline 27 . One end of the fourth pipeline 11 is arranged in the sedimentation tank 5 , and the other end of the fourth pipeline 11 passes through the side wall of the sedimentation tank 5 and communicates with the overflow port 17 . The first pipe 15 is arranged below the fermentation wastewater inlet pipe 24, and the installation positions of the fermentation wastewater inlet pipe 24, the second pipe 26, the third pipe 27 and the fourth pipe 11 gradually decrease in vertical height. The scale of processing biogas fermentation liquid is 1.0-9.8 (m3/d). The whole treatment device uses the height difference as the power, and the whole process does not need to lift the pump, and only relies on the self-flow to enter and exit the water.

The side wall of the top of the regulating tank 2 is provided with a fermentation wastewater inlet pipe 24, and the first-level contact oxidation tank 3 and the second-level contact oxidation tank 4 are provided with combined fillers 22 for biological attachment, and the installation spacing of the combined fillers 22 is 100~ 200mm×150～200mm×100～150mm, an aeration box 12 is installed on the top of the primary contact oxidation tank 3, an aerator 13 is arranged in the aeration box 12, the primary contact oxidation tank 3 and the secondary contact oxidation tank 4. There are a plurality of aeration heads 21 in the bottom, and the interval is 30-100mm × 100-200mm (length × width). The output end of the aerator 13 is communicated with one end of the aeration pipe 14, and the other end of the aeration pipe 14 It communicates with a plurality of aeration heads 21 . The combined filler 22 is used as a carrier for microorganisms, and is oxygenated by the aerator 13, which facilitates the fermentation of microorganisms and improves the efficiency. A heating rod 25 is arranged on the side wall of the secondary contact oxidation tank 4 to increase the appropriate temperature for the microorganisms and facilitate fermentation. Both the primary contact oxidation tank 3 and the secondary contact oxidation tank 4 are provided with oil separators 16 on the side walls. The oil separator 16 is 50mm according to the water outlet surface of the primary contact oxidation tank 3 and the secondary contact oxidation pool 4, and the oil separator 16 surface is perpendicular to the water outlet surface, respectively in the primary contact oxidation pool 3 and the secondary contact oxidation pool 4. The side walls at both ends are connected. The upper end of the oil separator 16 is 50mm higher than the upper end of the water outlet and 100mm lower than the lower end of the water outlet pipe. The specific volume of the oxidation tank 4 is 0.3-0.5 (m3/(t/d)), the height of the two-stage contact oxidation tank is 1500-1800 mm, the HRT is 1-2 days, and the DO is controlled at 1.5-5.0 mg/L.

The upper part of the side wall of the sedimentation tank 5 is provided with an overflow port 17, the bottom of the sedimentation tank 5 away from the side wall of the secondary contact oxidation tank 4 is provided with a mud discharge pipe 20, and the bottom of the sedimentation tank 5 is provided with a mud discharge plate 19 , the mud discharge pipe 20 is arranged above the mud discharge plate 19, and the upper part of the adjustment tank 2 is far away from the side wall of the first-level contact oxidation tank 3 and is provided with a reserved pipe 7 that is communicated with the inside of the adjustment tank 2, and the reserved pipe 7 stretches out. One end of the regulating pool 2 is provided with a valve 6 . The function of the reserved pipe 7 is to open it when the water volume is seriously exceeding the standard and to discharge the oil when the fermented liquid enters the water with too heavy oil pollution. Make the height of the center of the section of the reserved pipe 7 the same height as the lower port line of the water outlet of the primary contact oxidation tank 3.

The adjustment tank 2 is provided with a water inlet pipe 10 , and one end of the water inlet pipe 10 passes through the side wall of the adjustment tank 2 and communicates with the fermentation wastewater inlet pipe 24 . One end of the first pipe 15 close to the adjustment tank 2 is provided with a first grid 18 , and one end of the water inlet pipe 10 close to the fermentation wastewater inlet pipe 24 is provided with a second grid 23 . The diameter of the water inlet pipe 10 in the adjustment tank 2 is 50mm or 63mm, and the inlet pipe 10 is provided with a second grille 23 to intercept the solid matter in the biogas fermentation liquid. The reserved pipe 7 can discharge the untreated oil regularly. The first pipe 15 has a diameter of 110 mm at a distance of 300 to 500 mm from the bottom of the adjustment tank 2, and the first pipe 15 is provided with a first grid 18. .

The tops of the regulating tank 2 , the first-level contact oxidation tank 3 , the second-level contact oxidation tank 4 and the sedimentation tank 5 are all provided with a manhole 9 , and a screw cover 8 for sealing the manhole 9 is provided at the manhole 9 . It is convenient for people to enter and exit, maintenance and testing equipment.

The mud plate 19 is inclined downward from the side close to the secondary contact oxidation tank 4 to the side away from the secondary contact oxidation tank 4, and the mud discharge pipeline 20 is correspondingly communicated with the mud plate 19 located above the side of the horizontal low end. . The inclination of the mud discharge plate 19 is 6-8°, the diameter of the mud discharge pipe 20 is 110mm or 200mm, the specific volume of the sedimentation tank 5 is 0.7-1.0m3/(t/d), and the height is 1500-1800mm.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection of the utility model.

Claims (10)

1. A miniature biogas fermentation liquid processing apparatus is characterized in that: comprises a shell (1), a regulating reservoir (2), a first-level contact oxidation pond (3), a second-level contact oxidation pond (4) and a sedimentation tank (5) are sequentially arranged in the shell (1) side by side, the regulating reservoir (2) is communicated with the first-level contact oxidation pond (3), the first-level contact oxidation pond (3) is communicated with the second-level contact oxidation pond (4), the second-level contact oxidation pond (4) is communicated with the sedimentation tank (5), a fermentation wastewater inlet pipe (24) is arranged on the side wall of the top of the regulating reservoir (2), a combined filler (22) for biological attachment is arranged in the first-level contact oxidation pond (3) and the second-level contact oxidation pond (4), an overflow port (17) is arranged on the upper part of the side wall of the sedimentation tank (5), a sludge discharge pipeline (20) is arranged at the bottom of the side wall of the second-level contact oxidation pond (4) far away from the sedimentation tank (5), be equipped with in the bottom of sedimentation tank (5) and go out mud board (19), arrange mud pipe way (20) and establish the top of going out mud board (19), keep away from on the upper portion of equalizing basin (2) be equipped with on the lateral wall of one-level contact oxidation pond (3) with reserve pipe (7) of equalizing basin (2) inside intercommunication, reserve pipe (7) and stretch out the one end of equalizing basin (2) is equipped with valve (6).

2. The micro biogas fermentation broth processing device according to claim 1, wherein: equalizing basin (2) with one-level contact oxidation pond (3) are through first pipeline (15) intercommunication, one-level contact oxidation pond (3) with second grade contact oxidation pond (4) are through second pipeline (26) intercommunication, second grade contact oxidation pond (4) with sedimentation tank (5) are through third pipeline (27) intercommunication, be equipped with the one end of fourth pipeline (11) in sedimentation tank (5), the other end of fourth pipeline (11) passes behind the lateral wall of sedimentation tank (5) with overflow mouth (17) intercommunication.

3. The micro biogas fermentation broth processing device according to claim 2, wherein: the first pipeline (15) is arranged below the fermentation wastewater inlet pipe (24), and the installation positions of the fermentation wastewater inlet pipe (24), the second pipeline (26), the third pipeline (27) and the fourth pipeline (11) are gradually reduced in vertical height.

4. A micro biogas fermentation broth processing device according to claim 3, characterized in that: be equipped with inlet tube (10) in equalizing basin (2), the one end of inlet tube (10) pass behind the lateral wall of equalizing basin (2) with fermentation waste water inlet tube (24) intercommunication.

5. The micro biogas fermentation broth processing device according to claim 4, wherein: first pipeline (15) are close to the one end of equalizing basin (2) is equipped with first grid (18), inlet tube (10) are close to the one end of fermentation waste water inlet tube (24) is equipped with second grid (23).

6. The micro biogas fermentation broth processing device according to claim 1, wherein: the top of the first-stage contact oxidation tank (3) is provided with an aeration machine case (12), an aeration machine (13) is arranged in the aeration machine case (12), the first-stage contact oxidation tank (3) and the bottom of the second-stage contact oxidation tank (4) are internally provided with a plurality of anti-clogging aeration heads (21), the output end of the aeration machine (13) is communicated with one end of an aeration pipe (14), and the other end of the aeration pipe (14) is communicated with the plurality of aeration heads (21).

7. The micro biogas fermentation broth processing device according to any one of claims 1-6, wherein: the adjusting tank (2), the primary contact oxidation tank (3), the secondary contact oxidation tank (4) and all be equipped with a manhole (9) on the top of sedimentation tank (5), manhole (9) department is equipped with the closing cap spiral cover board (8) of manhole (9).

8. The micro biogas fermentation broth processing device according to any one of claims 1-6, wherein: and a heating rod (25) is arranged in the secondary contact oxidation tank (4).

9. The micro biogas fermentation broth processing device according to any one of claims 1-6, wherein: and oil separation plates (16) are arranged on the side walls of the primary contact oxidation tank (3) and the secondary contact oxidation tank (4).

10. The micro biogas fermentation broth processing device according to any one of claims 1-6, wherein: the sludge discharging plate (19) is obliquely and downwards arranged from one side close to the secondary contact oxidation pond (4) to one side far away from the secondary contact oxidation pond (4), and the sludge discharging pipeline (20) is correspondingly communicated with the upper part of one side, located at the lower horizontal end, of the sludge discharging plate (19).

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