Greenhouse gas collecting device for wastewater treatment

Abstract

The utility model provides a greenhouse gas collecting device for wastewater treatment, which mainly comprises the following structures: a first part is wastewater treatment and comprises a water inlet pump, a water inlet pipe, an anoxic tank, an aerobic tank, a return pipe, a return pump, a water outlet pipe, an air pump and an air inlet pipe, partition plates are arranged in the anoxic tank and the aerobic tank, and the tanks are connected front and back; and the second part is a greenhouse gas collecting device which comprises a gas outlet, a gas stopping valve and a gas collecting device. The greenhouse gas collecting device for wastewater treatment is scientific and reasonable in structure, completely conforms to the treatment process, and can be used for collecting greenhouse gas generated in the treatment process of wastewater with different sources and different concentrations treated by an anaerobic and aerobic process. The collection of the greenhouse gas in the wastewater treatment process can be realized, so that the accurate and high-precision accounting of the greenhouse gas in the wastewater treatment process can be realized.

Description

Technical Field

[0001] The utility model relates to the field of greenhouse gas accounting generated in the process of sewage treatment, in particular to a greenhouse gas collection device for wastewater treatment. Background Art

[0002] In the wastewater treatment process, direct greenhouse gas emissions and indirect emissions generated by electricity consumption and chemical consumption are the main sources of carbon emissions from wastewater treatment. As carbon emissions cause more harm to the environment and air, pollution reduction and carbon reduction have become the main tasks of the sewage treatment industry, and carrying out carbon emission accounting for wastewater treatment is the basis for carbon emission reduction.

[0003] At present, the accounting method used for carbon emissions in the wastewater treatment process is still the commonly used emission factor method. The accuracy of carbon emissions calculated by this method is extremely unstable. Its accuracy depends on the accuracy of the emission factors used and the energy consumption data. In addition, its efficiency is relatively low and it is difficult to keep up with the current carbon emission accounting needs. At present, research on greenhouse gas emissions from wastewater treatment facilities in my country is still in its infancy, especially the lack of carbon emission collection devices in wastewater treatment. This gap has greatly restricted the accounting of carbon emissions in the wastewater treatment process.

[0004] Therefore, there is an urgent need to provide a greenhouse gas collection device for wastewater treatment to fill this gap and solve the problem of inaccurate carbon emission accounting in the current wastewater treatment process. Utility Model Content

[0005] To solve the above problems, the utility model proposes a device that can collect greenhouse gases in the wastewater treatment process. The device has the advantages of collecting and treating greenhouse gases generated by wastewater from different sources and different concentrations, and solves the problems raised by the background technology.

[0006] To achieve the above purpose, the device provided by the utility model includes:

[0007] The greenhouse gas collection device is mainly divided into five parts: wastewater inlet part, wastewater treatment part, air intake part, wastewater outlet part and gas collection part. These parts form an organic whole and together constitute a device that can collect greenhouse gases generated during the wastewater treatment process.

[0008] The wastewater inlet part is mainly composed of an inlet pump, a first mounting frame, an inlet pipe and an inlet port. One end of the inlet pipe is connected to the inlet port provided on one side of the anoxic tank, while the other end is in direct contact with the wastewater source. The inlet pump is arranged at the lower end of the inlet pipe through the first mounting frame.

[0009] The wastewater treatment part is mainly composed of five reaction tanks, a base, a partition and a protective frame. The five reaction tanks are arranged together on the base. The first two reaction tanks from left to right correspond to the anaerobic treatment in the anaerobic aerobic process treatment, that is, the anoxic tank, and the last three reaction tanks correspond to the aerobic treatment, that is, the aerobic tank. Except that one side of the first anoxic tank is a water inlet and one side of the last aerobic tank is a water outlet, the anoxic tanks and the aerobic tanks are connected in pairs through connecting pipes. In addition, three staggered partitions are arranged inside each reaction tank, and a protective frame for anti-collision protection is provided outside each reaction tank.

[0010] The reflux device is directly connected from the last aerobic tank to the first anoxic tank through a reflux pipe, and a reflux pump is arranged in the middle of the reflux pipe through a second mounting bracket.

[0011] The air intake part is composed of an air pump, a support frame, an air intake pipe, an aeration head, air diffusion holes and a connecting screw. The air pump is connected to the air intake pipe, and the air intake pipe extends into the three aerobic pools. An aeration head is movably installed at the air intake pipe port of the three aerobic pools through a connecting screw, and a plurality of air diffusion holes are provided on the surface of the aeration head.

[0012] The wastewater outlet is connected to the external outlet pipe by an outlet, and the outlet is arranged on the outlet side of the last aerobic tank.

[0013] The gas collection part is mainly composed of a gas outlet and a gas stop valve. The top of the anoxic and aerobic reaction tanks are both provided with a gas outlet, and the gas outlet is communicated with the inside of the reaction tank, while the gas stop valve is connected to the gas outlet.

[0014] The gas collection part can be a combination of the gas outlet and the gas stop valve in the reaction pool, or an additional gas collection device can be used, which is characterized in that: the gas collection device consists of a gas pipe, a vacuum pump and a second sealing ring, one end of the gas pipe is connected to the vacuum pump, and then the other end of the gas pipe is led outward, and a second sealing ring is arranged inside the end of the gas pipe that is led outward.

[0015] The gas collection part also includes a sealing device, which is characterized in that: the top of the reaction pool is provided with a sealing cover and a first sealing ring, the first sealing ring is padded between the sealing cover and the reaction pool, and the sealing cover is provided with an air outlet, and the air outlet is connected to the air stop valve, and the whole is in a sealed state.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model has a scientific and reasonable structural design and can be applied to the collection of greenhouse gases generated during the deep treatment of wastewater from different sources and with different concentrations; it can help to achieve accurate calculation of the amount of greenhouse gases generated during the treatment of wastewater.

[0018] In order to better understand and implement the present invention, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0020] Figure 2 It is a three-dimensional cross-sectional structural schematic diagram of the anoxic pool, the water inlet pipe and the first sealing ring of the utility model.

[0021] Figure 3 The utility model is a three-dimensional cross-sectional structural schematic diagram of an aerobic pool, an air pump and an air intake pipe.

[0022] Figure 4 It is a three-dimensional cross-sectional structural schematic diagram of the aeration head and the connecting screw of the utility model.

[0023] Figure 5 It is a three-dimensional cross-sectional structural schematic diagram of the vacuum pump, the air delivery pipe and the second sealing ring of the utility model.

[0024] The meanings of the reference numerals in the figure are as follows: 1. water inlet pump, 101. first mounting frame, 2. water inlet pipe, 3. water inlet, 4. anoxic tank, 401. base, 5. partition, 6. connecting pipe, 7. sealing cover, 8. first sealing ring, 9. air outlet, 10. air stop valve, 11. return pipe, 12. return pump, 1201. second mounting frame, 13. aerobic tank, 14. air pump, 1401. supporting frame, 15. air inlet pipe, 16. aeration head, 1601. air diffusion hole, 1602. connecting screw, 17. water outlet, 18. air supply pipe, 19. vacuum pump, 20. second sealing ring, 21. protective frame. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Reference Figure 1-Figure 4 As shown, the utility model provides a greenhouse gas collection device for wastewater treatment. For the convenience of description, its implementation can be divided into a wastewater treatment stage and a greenhouse gas collection stage. In the actual implementation process, these two stages are parallel. The specific implementation is as follows.

[0027] The first stage, wastewater treatment stage:

[0028] The wastewater is sent into the first anoxic tank 4 by the water inlet pump 1 through the water inlet pipe 2. In different reaction tanks, there are bacteria and activated sludge for anoxic or aerobic treatment. The flow path of the wastewater in the anoxic tank 4 is increased due to the presence of the partition 5, which prolongs the treatment time of the wastewater, thereby improving the treatment effect. In addition, the sealing cover 7 of the reaction tank seals the anoxic tank 4, so that the reaction condition in the tank is anoxic.

[0029] As the wastewater continues to flow in, the water in the first anoxic pool 4 will flow into the second anoxic pool 4 through the connecting pipe 6 and undergo the same anoxic treatment, and anoxic conditions and anoxic reactions will also occur. The partition 5 is also used to increase the flow path of the wastewater and increase the treatment time.

[0030] Then the wastewater is sent to the first aerobic pool 13, and air is continuously input into the three aerobic pools 13 through the air pump 14 and the air inlet pipe 15, so that aerobic reactions occur in the aerobic pools 13. The port of the air inlet pipe 15 is as close as possible to the bottom of the aerobic pool 13. In addition, there is an aeration head 16 at the port of the air inlet pipe 15. The setting of the aeration head 16 can make the air fully dispersed in the aerobic pool 13, so that the air and the wastewater are fully in contact, ensuring that the aerobic reaction is in the best state.

[0031] In the last aerobic pool 13 for wastewater treatment, a reflux pipe 11 and a reflux pump 12 are provided, through which the wastewater from the last aerobic pool 13 can be refluxed to the first anoxic pool 4, so that the wastewater can be circulated for multiple times to achieve the best treatment effect. After the wastewater is finally treated, it is discharged from the entire reaction system through the outlet 17.

[0032] The second stage, greenhouse gas collection stage:

[0033] During the first stage of operation, greenhouse gases have been generated in each reaction pool. Since the height of the water inlet 3, the connecting pipe 6 and the water outlet 17 is slightly lower than the sealing cover 7, a space will be left in each reaction pool during the first stage. Since the reaction pool is always sealed during the reaction process, the greenhouse gases generated in the anoxic pool 4 will remain in this space. As for the aerobic pool 13, since the air pump 14 continuously inputs air into the interior, the aerobic pool 13 cannot be completely sealed like the anoxic pool 4, so the air stop valve 10 needs to be opened during the reaction.

[0034] For greenhouse gas collection, the two different reaction conditions, namely anoxic and aerobic, have different collection methods. For the anoxic pool 4, it is necessary to seal the stop valve 10 with a sealing film, then open the stop valve 10, and use a gas sampling needle to extract the gas. For the aerobic pool 13, it is necessary to first turn off the air pump 14, temporarily stop the air input, and at the same time close the stop valve 10, and then use a sealing film to seal the stop valve 10 and use a gas sampling needle to extract the gas.

[0035] In addition, additional gas collection devices can be used, such as Figure 5 The anoxic pool 4 and the aerobic pool 13 also use different collection methods. For the anoxic pool 4, the air pipe 18 can be directly connected to the outlet of the air stop valve 10, and then the air stop valve 10 and the vacuum pump 19 can be opened to take out the greenhouse gas into the air bag or other gas container. For the aerobic pool 13, it is also necessary to first turn off the air pump 14, and at the same time connect the air pipe 18 to the air stop valve 10 of the aerobic pool 13, and then open the vacuum pump 19 to take out the greenhouse gas into the air bag or other gas container.

[0036] This completes the collection of greenhouse gases produced during the anaerobic and aerobic process of wastewater treatment.

[0037] Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation shall fall within the protection scope of the present invention.

Claims

1. A greenhouse gas collection device for wastewater treatment, characterized in that: include: The greenhouse gas collection device is mainly divided into five parts: wastewater inlet part, wastewater treatment part, air inlet part, wastewater outlet part, and gas collection part. These parts form an organic whole and together form a device that can collect greenhouse gases generated during the wastewater treatment process; The wastewater inlet part is composed of an inlet pump (1), a first mounting frame (101), an inlet pipe (2) and an inlet port (3); one end of the inlet pipe (2) is connected to the inlet port (3) provided on one side of the anoxic tank (4), while the other end is in direct contact with the wastewater source; the inlet pump (1) is arranged at the lower end of the inlet pipe (2) through the first mounting frame (101); The wastewater treatment part is mainly composed of five reaction tanks, a base (401), a partition (5) and a protective frame (21). The five reaction tanks are arranged on the base (401). The first two reaction tanks from left to right correspond to the anaerobic treatment in the anaerobic-aerobic process treatment, namely the anoxic tank (4), and the last three reaction tanks correspond to the aerobic treatment, namely the aerobic tank (13). Except that one side of the first anoxic tank (4) is a water inlet (3) and one side of the last aerobic tank (13) is a water outlet (17), the anoxic tanks (4) and the aerobic tanks (13) are connected in pairs through connecting pipes (6). In addition, three staggered partitions (5) are arranged inside each reaction tank, and a protective frame (21) for anti-collision protection is arranged outside each reaction tank. It also includes a reflux device, which is directly connected from the last aerobic pool (13) to the first anoxic pool (4) through a reflux pipe (11), and a reflux pump (12) is provided in the middle of the reflux pipe (11) through a second mounting frame (1201); The air intake part is composed of an air pump (14), a support frame (1401), an air intake pipe (15), an aeration head (16), air diffusion holes (1601) and a connecting screw (1602). The air pump (14) is connected to the air intake pipe (15), and the air intake pipe (15) extends into the three aerobic tanks (13). An aeration head (16) is movably installed at the end of the air intake pipe (15) in the three aerobic tanks (13) through the connecting screw (1602), and a plurality of air diffusion holes (1601) are provided on the surface of the aeration head (16); The wastewater outlet is connected to an external outlet pipe via an outlet (17), and the outlet (17) is arranged on the outlet side of the last aerobic tank (13); The gas collection part is mainly composed of a gas outlet (9) and a gas stop valve (10). The tops of the anoxic and aerobic reaction tanks are both provided with a gas outlet (9), and the gas outlet (9) is communicated with the interior of the reaction tank, while the gas stop valve (10) is connected to the gas outlet (9).

2. The greenhouse gas collection device for wastewater treatment according to claim 1, the combination of the gas outlet (9) and the gas stop valve (10) in the reaction tank, using an additional gas collection device, is characterized in that: The gas collection device is composed of a gas pipe (18), a vacuum pump (19) and a second sealing ring (20). One end of the gas pipe (18) is connected to the vacuum pump (19), and the other end of the gas pipe (18) is led outward. The second sealing ring (20) is arranged inside the end of the gas pipe (18) that is led outward.

3. The greenhouse gas collection device for wastewater treatment according to claim 1, further comprising a sealing device, characterized in that: The sealing device is directly arranged in each reaction pool. The top of the reaction pool is provided with a sealing cover (7) and a first sealing ring (8). The first sealing ring (8) is cushioned between the sealing cover (7) and the reaction pool. The sealing cover (7) is provided with an air outlet, which is connected to the air stop valve (10). The whole is in a sealed state.

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