CN213834953U - Odor collecting and treating system for domestic sewage treatment system - Google Patents
Odor collecting and treating system for domestic sewage treatment system Download PDFInfo
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- CN213834953U CN213834953U CN202022393635.6U CN202022393635U CN213834953U CN 213834953 U CN213834953 U CN 213834953U CN 202022393635 U CN202022393635 U CN 202022393635U CN 213834953 U CN213834953 U CN 213834953U
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Abstract
An odor gas collection and treatment system for a sanitary sewage treatment system comprising: the gas-collecting hood among the grids, the gas-collecting hood of the secondary sedimentation tank and the gas-collecting hood of the sludge concentration tank are respectively covered on the tops of the grids, the secondary sedimentation tank and the sludge concentration tank; the air inlet of the first fan is respectively connected to the gas-collecting hood among the grids, the gas-collecting hood of the secondary sedimentation tank and the gas-collecting hood of the sludge concentration tank, and the air outlet of the first fan is connected to the aeration device; the aeration device is arranged in the aerobic tank; the gas collecting hood of the aerobic tank is covered at the top of the aerobic tank and used for collecting odor after aeration treatment; the air inlet and the air outlet of the second fan are respectively connected to the gas collecting hood of the aerobic tank and the air inlet of the washing tower; a washing unit is arranged in the washing tower and is used for washing the odor from the second fan to obtain deodorized gas; and an air inlet of the chimney is connected to an air outlet of the washing tower and is used for exhausting the deodorizing gas. The utility model discloses an odor collecting and treating system, simple structure, can collect and handle domestic sewage treatment system's odor, and deodorization effect is good.
Description
Technical Field
The utility model belongs to the domestic sewage treatment field, concretely relates to an odor collecting and treating system for domestic sewage treatment system.
Background
The domestic sewage treatment process mainly comprises water treatment equipment and structures such as a grating room, an aerobic tank, a secondary sedimentation tank, a sludge concentration tank and the like, different odorous waste gases are easily generated, and the main component of the odorous waste gases is ammonia (NH)3) Hydrogen sulfide (H)2S), mercaptan and other Volatile Organic Compounds (VOC) have great influence on the environment and human bodies, and particularly cause certain health hidden troubles for workers in a factory. With the increasing strictness of the environmental protection requirement, the existing measures are usually to add a deodorization link in the sewage treatment process to reduce the generation of malodorous gas. However, it is difficult to add links to the existing treatment process, and the deodorization effect is poor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an odor collecting and treating system for domestic sewage treatment system, this odor collecting and treating system simple structure, can collect and handle domestic sewage treatment system's odor, have the deodorization effect.
In order to realize the purpose of the utility model, the following technical scheme is adopted:
an odor collecting and treating system for a domestic sewage treatment system, wherein the domestic sewage treatment system comprises a grid room, a primary sedimentation tank, an anaerobic/anoxic tank, an aerobic tank, a secondary sedimentation tank, a disinfection tank and a sludge concentration tank which are sequentially connected through pipelines; wherein, suspended matters and floating matters in the domestic sewage are intercepted between the grids to obtain primary treated water; the primary sedimentation tank is used for removing inorganic particles in the primary treatment water from among the grids to obtain secondary treatment water; the anaerobic/anoxic tank is used for performing nitrogen and phosphorus removal on the secondary treated water from the primary sedimentation tank to obtain tertiary treated water; the aerobic tank is used for decomposing BOD and COD in the tertiary treatment water from the anaerobic/anoxic tank and simultaneously degrading VOC in the tertiary treatment water to obtain quaternary treatment water; the secondary sedimentation tank is used for carrying out mud-water separation on the four-stage treated water from the aerobic tank to obtain sludge and five-stage treated water; the disinfection tank is used for disinfecting the five-stage treated water from the secondary sedimentation tank to obtain six-stage treated water as effluent; the sludge concentration tank is used for concentrating the sludge from the secondary sedimentation tank;
the odor collecting and treating system comprises a gas-collecting hood among grids, a gas-collecting hood of an aerobic tank, a gas-collecting hood of a secondary sedimentation tank, a gas-collecting hood of a sludge concentration tank, an aeration device, a first fan, a second fan, a washing tower and a chimney which are connected through pipelines, wherein,
the gas-collecting hood between the grids is arranged at the top of the grids and used for collecting odor from the grids;
the secondary sedimentation tank gas-collecting hood is arranged at the top of the secondary sedimentation tank and used for collecting odor from the secondary sedimentation tank;
the gas-collecting hood of the sludge concentration tank is arranged at the top of the sludge concentration tank and is used for collecting odor from the sludge concentration tank;
the air inlet of the first fan is respectively connected to the gas-collecting hood among the grids, the gas-collecting hood of the secondary sedimentation tank and the gas-collecting hood of the sludge concentration tank, and the air outlet of the first fan is connected to the aeration device;
the aeration device is arranged in the aerobic tank and used for providing oxygen for the aerobic tank so as to carry out aeration treatment on odor in the aerobic tank and remove odor gas in the aerobic tank;
the gas-collecting hood of the aerobic tank is covered at the top of the aerobic tank and is used for collecting odor after aeration treatment;
an air inlet of the second fan is connected to the gas collecting hood of the aerobic tank, and an air outlet of the second fan is connected to an air inlet of the washing tower;
a washing unit is arranged in the washing tower and is used for washing the odor from the second fan so as to remove residual odor gas in the odor to obtain deodorized gas;
and the air inlet of the chimney is connected to the air outlet of the washing tower and is used for exhausting the deodorizing gas from the washing tower.
Preferably, pressure gauges are respectively arranged in the inter-grid gas-collecting hood, the aerobic tank gas-collecting hood, the secondary sedimentation tank gas-collecting hood and the sludge concentration tank gas-collecting hood and are used for respectively measuring the relative air pressure in the two gas-collecting hoods.
Preferably, the pressure gauge is a U-shaped water column pressure gauge.
Preferably, valves are respectively arranged on pipelines from the air inlet of the first fan to the gas-collecting hood between the grids, the gas-collecting hood of the secondary sedimentation tank and the gas-collecting hood of the sludge concentration tank, and are used for respectively adjusting the relative air pressures in the gas-collecting hood between the grids, the gas-collecting hood of the secondary sedimentation tank and the gas-collecting hood of the sludge concentration tank.
Preferably, the first fan and the second fan are respectively provided with a variable frequency controller for respectively carrying out automatic constant-pressure variable frequency regulation on the introduced gas.
Preferably, a pressure sensor is arranged on a pipeline connected to the air inlet of the second fan and used for controlling a variable frequency controller in the second fan to perform automatic constant-pressure variable frequency regulation.
Preferably, the pipeline connected to the air inlet of the second fan is a glass fiber reinforced plastic pipeline.
Preferably, the pipelines respectively connected to the gas-collecting hood between the grids, the gas-collecting hood of the secondary sedimentation tank and the gas-collecting hood of the sludge concentration tank from the air inlet of the first fan are all glass fiber reinforced plastic pipelines.
Preferably, the gas-collecting hood among the grids, the gas-collecting hood of the aerobic tank, the gas-collecting hood of the secondary sedimentation tank and the gas-collecting hood of the sludge concentration tank are all glass fiber reinforced plastic gas-collecting hoods.
Preferably, a dehydration device is further arranged in the washing tower, and the dehydration device is arranged at an air outlet of the washing tower and used for removing moisture in the deodorization gas.
The beneficial effects of the utility model reside in that:
the utility model discloses an odor collecting and treating system for domestic sewage treatment system, simple structure, easy implementation can collect and handle domestic sewage treatment system's odor, and deodorization effect is good.
Drawings
Fig. 1 is a schematic structural view of an odor collecting and treating system for a domestic sewage treatment system according to an embodiment of the present invention.
Detailed Description
The technical solution and effects of the present invention will be further explained with reference to the accompanying drawings and the detailed description. The following embodiments are merely illustrative of the present invention, and the present invention is not limited to the following embodiments or examples. Use the utility model discloses a think about right the utility model discloses the simple change that goes on is all in the utility model discloses the within range that claims.
As shown in fig. 1, the utility model provides an odor collecting and treating system for a domestic sewage treatment system, which comprises a grid room 1, a primary sedimentation tank 2, an anaerobic/anoxic tank 3, an aerobic tank 4, a secondary sedimentation tank 5, a disinfection tank 6 and a sludge concentration tank 7 which are connected in sequence through pipelines; the grid room 1 is used for intercepting suspended matters and floating matters in domestic sewage to obtain primary treated water; the primary sedimentation tank 2 is used for removing inorganic particles in the primary treatment water from the grid spaces 1, such as grid residues intercepted among the grid spaces and solid particles such as sand and stone separated from the primary sedimentation tank, so as to obtain secondary treatment water, thereby ensuring that the subsequent biological treatment can normally run; the anaerobic/anoxic tank 3 is used for performing nitrogen and phosphorus removal on the secondary treated water from the primary sedimentation tank 2 to obtain tertiary treated water; the aerobic tank 4 is used for decomposing BOD (biochemical oxygen demand) and COD (chemical oxygen demand) in the tertiary treatment water from the anaerobic/anoxic tank 3Chemical oxygen demand) and simultaneously degrade VOCs (volatile organic compounds) therein, such as ammonia (NH)3) Hydrogen sulfide (H)2S), thiol (CH)4S), and the like to obtain four-stage treated water; the secondary sedimentation tank 5 is used for carrying out mud-water separation on the four-stage treated water from the aerobic tank 4 to obtain sludge and five-stage treated water; the disinfection tank 6 is used for disinfecting the five-stage treated water from the secondary sedimentation tank 5, for example, by using chlorine, ozone, ultraviolet rays or chlorine dioxide, so as to kill pathogenic microorganisms harmful to human bodies in the five-stage treated water, and obtain six-stage treated water as effluent for discharge or recycling; the sludge concentration tank 7 is used for concentrating the sludge from the secondary sedimentation tank 5 so as to reduce the volume of the sludge, facilitate the discharge of the sludge and save the sludge treatment cost;
the odor collecting and treating system comprises a gas collecting hood 8 among grids, a gas collecting hood 9 of an aerobic tank, a gas collecting hood 10 of a secondary sedimentation tank, a gas collecting hood 11 of a sludge concentration tank, an aeration device 12, a first fan 13, a second fan 14, a washing tower 15 and a chimney 16 which are connected through pipelines, wherein,
the inter-grid gas-collecting hood 8 is covered on the top of the inter-grid 1 and used for collecting odor from the inter-grid 1;
the secondary sedimentation tank gas-collecting hood 10 is covered on the top of the secondary sedimentation tank 5 and is used for collecting odor from the secondary sedimentation tank 5;
the gas-collecting hood 11 of the sludge concentration tank is covered on the top of the sludge concentration tank 7 and is used for collecting odor from the sludge concentration tank 7;
the air inlet of the first fan 13 is respectively connected to the inter-grid gas-collecting hood 8, the secondary sedimentation tank gas-collecting hood 10 and the sludge concentration tank gas-collecting hood 11, and the air outlet is connected to the aeration device 12 for providing power to convey odor from the inter-grid gas-collecting hood 8, the secondary sedimentation tank gas-collecting hood 10 and the sludge concentration tank gas-collecting hood 11 to the aeration device 12;
the aeration device 12 is arranged in the aerobic tank 4 and used for providing oxygen for the aerobic tank 4 to carry out aeration treatment on odor in the aerobic tank so as to uniformly disperse the odor in the aerobic tankPerforming biological deodorization in the oxygen tank 4 to make the odor fully contact with the sewage and the activated sludge, increasing the reaction rate of the odor gas in the odor in the aerobic tank and the activated sludge, and removing the odor gas, such as NH, in the odor gas3、H2S and CH4S, thereby achieving the effect of removing odor; as understood by those skilled in the art, the odor in the aerobic tank 4 includes odor generated by the aerobic tank 4 itself and odor delivered to the aeration device 12 by the first fan 13;
the gas-collecting hood 9 of the aerobic tank is covered on the top of the aerobic tank 4 and is used for collecting odor after aeration treatment;
an air inlet of the second fan 14 is connected to the gas collecting hood 9 of the aerobic tank, and an air outlet of the second fan is connected to an air inlet of the washing tower 15, so as to provide power for conveying the odor after aeration treatment to the washing tower 15;
a washing unit is provided in the washing tower 15 for washing the odor from the second fan 14 to remove the residual odor gas such as NH therefrom3、H2S and CH4S, obtaining a deodorizing gas;
an air inlet of the chimney 16 is connected to an air outlet of the scrubber 15 for exhausting the deodorizing gas from the scrubber 15.
It is understood by those skilled in the art that the malodorous gas is an odor emitted by odorous gases therein, including NH3、H2S and CH4S and the like.
The skilled person understands that the domestic sewage treatment system is an existing sewage treatment system, and the grating room 1, the primary sedimentation tank 2, the anaerobic/anoxic tank 3, the aerobic tank 4, the secondary sedimentation tank 5, the disinfection tank 6 and the sludge concentration tank 7 are all common devices or structures in the field, and are not described in detail herein.
As understood by those skilled in the art, an aeration apparatus refers to a device for supplying oxygen to an aeration tank in a wastewater activated sludge process water treatment process. Aeration means artificially introducing air into the biochemical aeration tank through proper equipment to achieve the expected purpose. The aeration not only makes the liquid in the pool contact with the air for oxygenation, but also accelerates the transfer of oxygen in the air to the liquid due to the stirring of the liquid, thereby completing the purpose of oxygenation; in addition, the aeration also can prevent the suspension body in the tank from sinking and strengthen the contact between the organic matters in the tank and the microorganisms and the dissolved oxygen, thereby ensuring the oxidative decomposition of the microorganisms in the tank on the organic matters in the sewage under the condition of sufficient dissolved oxygen. In this application, the aeration device mainly functions to supply oxygen to the aerobic tank 4 and biologically deodorize the odor.
The chimney 16 can increase the height of exhaust gas and is beneficial to gas diffusion; on the other hand, when the gas is directly exhausted through the scrubber 15, in case of equipment failure, a large amount of untreated gas can be intensively exhausted, which contributes to improvement of safety.
The utility model discloses an odor collecting and treating system for domestic sewage treatment system, simple structure, easy implementation can collect and handle domestic sewage treatment system's odor, and deodorization effect is good.
In one embodiment, pressure gauges are respectively arranged in the inter-grid gas-collecting hood 8, the aerobic tank gas-collecting hood 9, the secondary sedimentation tank gas-collecting hood 10 and the sludge concentration tank gas-collecting hood 11 for respectively measuring the relative air pressures inside the pressure gauges; namely, the pressure gauge in the inter-grid gas-collecting hood 8 measures the relative pressure in the inter-grid gas-collecting hood 8, the pressure gauge in the aerobic tank gas-collecting hood 9 measures the relative pressure in the aerobic tank gas-collecting hood 9, the pressure gauge in the secondary sedimentation tank gas-collecting hood 10 measures the relative pressure in the secondary sedimentation tank gas-collecting hood 10, and the pressure gauge in the sludge concentration tank gas-collecting hood 11 measures the relative pressure in the sludge concentration tank gas-collecting hood 11. The pressure gauge can be a pressure gauge commonly used in the field, preferably a U-shaped water column pressure gauge, and is economical, simple to operate and wide in application.
In one embodiment, the pipelines connected to the inter-grid gas-collecting hood 8, the secondary sedimentation tank gas-collecting hood 10 and the sludge concentration tank gas-collecting hood 11 from the air inlet of the first fan 13 are respectively provided with valves for respectively adjusting the relative air pressures in the inter-grid gas-collecting hood 8, the secondary sedimentation tank gas-collecting hood 10 and the sludge concentration tank gas-collecting hood 11, so as to make the relative air pressures in the inter-grid gas-collecting hood 8, the aerobic tank gas-collecting hood 9, the secondary sedimentation tank gas-collecting hood 10 and the sludge concentration tank gas-collecting hood 11 consistent.
When the second fan 14 is turned on and the wind pressure in the pipeline connected to the air inlet of the second fan 14 is stabilized to be a micro negative pressure, the relative air pressures in the 4 gas collecting hoods can be respectively measured according to the pressure gauges arranged in the inter-grid gas collecting hood 8, the aerobic tank gas collecting hood 9, the secondary sedimentation tank gas collecting hood 10 and the sludge concentration tank gas collecting hood 11, and the valve openings on the 3 pipelines connected from the air inlet of the first fan 13 to the inter-grid gas collecting hood 8, the secondary sedimentation tank gas collecting hood 10 and the sludge concentration tank gas collecting hood 11 are respectively adjusted according to the measured values, so that the relative air pressures in the 4 gas collecting hoods are kept consistent, for example, all the relative air pressures are about-100 Pa.
In one embodiment, a variable frequency controller is respectively disposed in the first fan 13 and the second fan 14, and is used for performing automatic constant-pressure variable frequency regulation on the introduced gas to maintain a constant pressure.
The technical personnel in the field understand that the frequency conversion controller is an intelligent instrument for realizing the remote operation of the frequency converter, the starting, stopping, accelerating, decelerating and forward and reverse rotation of the frequency converter are remotely controlled through an RS485 network, and the running state information of the working frequency, the rotating speed and the like of the frequency converter is displayed in real time.
In a preferred embodiment, a pressure sensor is disposed on a pipeline connected to the air inlet of the second fan 14, and is used for controlling a variable frequency controller in the second fan 14 to perform automatic constant-pressure variable frequency regulation. Those skilled in the art understand that the constant pressure value should generally be set around-200 Pa.
In one embodiment, the pipeline connected to the air inlet of the second fan 14 is a glass fiber reinforced plastic pipeline, so that the pipeline can be ultraviolet-proof, ageing-resistant, corrosion-resistant and has a prolonged service life.
In one embodiment, the pipelines respectively connected to the inter-grid gas-collecting hood 8, the secondary sedimentation tank gas-collecting hood 10 and the sludge concentration tank gas-collecting hood 11 from the air inlet of the first fan 13 are glass fiber reinforced plastic pipelines, so that the ultraviolet resistance, the aging resistance, the corrosion resistance and the service life can be prolonged.
In one embodiment, the inter-grid gas-collecting hood 8, the aerobic tank gas-collecting hood 9, the secondary sedimentation tank gas-collecting hood 10 and the sludge concentration tank gas-collecting hood 11 are all made of glass fiber reinforced plastic, so that the gas-collecting hood is ultraviolet-proof, ageing-resistant, corrosion-resistant and has a prolonged service life.
In one embodiment, a dehydration device is further disposed in the washing tower 15, and the dehydration device is disposed at the gas outlet of the washing tower 15 and is used for removing moisture in the deodorizing gas, so that the deodorizing gas output through the gas outlet of the washing tower 15 is a dry gas, and liquid drops are prevented from being entrained in the discharged gas; preferably, the dewatering device is a steam-water separator, and preferably, the steam-water separator is a mesh filter.
In one embodiment, in the scrubber tower 15, the scrubber unit comprises a spray device and a packing layer; the packing layer is arranged at the middle layer in the washing tower 15 and is used for absorbing and deodorizing odor from the second fan 14; the spraying device is arranged on the upper layer in the washing tower 15 and is used for spraying and deodorizing odor absorbed and deodorized by the packing layer.
Those skilled in the art understand that the gas inlet of the scrubber 15 is disposed on the bottom sidewall of the scrubber 15, and the gas outlet is disposed at the top of the scrubber 15; different layers of the packing layer are respectively filled with solid or liquid (water/acidic solution/alkaline solution) adsorbents for absorbing and deodorizing odor entering the packing layer through the air inlet and removing part of odor gas such as NH in the odor gas3And H2S; the odor absorbed and deodorized by the filler layer is sprayed by the spraying liquid (water/acidic solution/alkaline solution) of the spraying device to further remove NH in the odor3、H2S and CH4S and other odorous gases. In the washing tower 15, the odor on the surface of the filler layer and the spraying liquid carry out mass transfer under the condition of continuous countercurrent and full contact, the filler layer is used as a mass transfer medium for gas-liquid two-phase contact, and the bottom of the filler layer is provided with a filler supportThe plate, the packing is piled up on the shoe plate in the unordered way, the spray liquid is sprayed on the packing from the top of the washing tower 15 through liquid distribution, and flow down along the surface of the packing; firstly, the odor is washed and sprayed with water to remove NH in the odor3And small amount of H2S, etc. gas, NH3Dissolving in water to form alkaline solution, and circularly spraying to remove H in odor2S, and simultaneously absorbing a small amount of organic odor pollutants.
As shown in fig. 1, in one embodiment, the odor collecting and treating system for a domestic sewage treatment system of the present invention operates as follows:
the gas collecting channel 8 between the grids collects the odor from 1 between the grids, the gas collecting channel 10 of the secondary sedimentation tank collects the odor from 5, the gas collecting channel 11 of the sludge concentration tank collects the odor from 7 of the sludge concentration tank, and the collected odor is respectively conveyed to the first fan 13 through a pipeline and is conveyed to the aeration device 12 through the power of the first fan 13, so that the aeration device and the odor generated by the aerobic tank 4 are aerated together to remove part of odor, such as NH (NH) gas, in the odor3、H2S and CH4S; the odor after the aeration treatment is collected by the gas collecting hood 9 of the aerobic tank, then is conveyed to the second fan 14 through a pipeline, and is conveyed to the washing tower 15 through the power of the second fan 14 for spray washing to remove residual odor gas in the washing tower; and then the water is removed through a dehydration device positioned at an air outlet in the washing tower 15, and the water is output to the chimney 16 from the air outlet of the washing tower 15 and is exhausted through the chimney 16.
The utility model discloses an odor collecting and treating system for domestic sewage treatment system, simple structure, easy implementation can collect and handle domestic sewage treatment system's odor, and deodorization effect is good.
Claims (10)
1. An odor collecting and treating system for a domestic sewage treatment system is characterized in that,
the domestic sewage treatment system comprises a grid room (1), a primary sedimentation tank (2), an anaerobic/anoxic tank (3), an aerobic tank (4), a secondary sedimentation tank (5), a disinfection tank (6) and a sludge concentration tank (7) which are sequentially connected through pipelines; the grid room (1) is used for intercepting suspended matters and floating matters in domestic sewage to obtain primary treated water; the primary sedimentation tank (2) is used for removing inorganic particles in the primary treatment water from the grid room (1) to obtain secondary treatment water; the anaerobic/anoxic tank (3) is used for performing nitrogen and phosphorus removal on the secondary treated water from the primary sedimentation tank (2) to obtain tertiary treated water; the aerobic tank (4) is used for decomposing BOD and COD in the tertiary treatment water from the anaerobic/anoxic tank (3) and simultaneously degrading VOC in the tertiary treatment water to obtain quaternary treatment water; the secondary sedimentation tank (5) is used for carrying out mud-water separation on the four-stage treated water from the aerobic tank (4) to obtain sludge and five-stage treated water; the disinfection tank (6) is used for disinfecting the five-stage treated water from the secondary sedimentation tank (5) to obtain six-stage treated water as effluent; the sludge concentration tank (7) is used for concentrating the sludge from the secondary sedimentation tank (5);
the odor collecting and treating system comprises a gas collecting hood (8) among grids, a gas collecting hood (9) of an aerobic pool, a gas collecting hood (10) of a secondary sedimentation pool, a gas collecting hood (11) of a sludge concentration pool, an aeration device (12), a first fan (13), a second fan (14), a washing tower (15) and a chimney (16) which are connected through pipelines, wherein,
the inter-grid gas-collecting hood (8) is covered on the top of the inter-grid (1) and used for collecting odor from the inter-grid (1);
the secondary sedimentation tank gas-collecting hood (10) is covered on the top of the secondary sedimentation tank (5) and is used for collecting odor from the secondary sedimentation tank (5);
the gas-collecting hood (11) of the sludge concentration tank is covered on the top of the sludge concentration tank (7) and is used for collecting odor from the sludge concentration tank (7);
the air inlet of the first fan (13) is respectively connected to the inter-grid gas-collecting hood (8), the secondary sedimentation tank gas-collecting hood (10) and the sludge concentration tank gas-collecting hood (11), and the air outlet is connected to the aeration device (12);
the aeration device (12) is arranged in the aerobic tank (4) and is used for providing oxygen for the aerobic tank (4) to carry out aeration treatment on odor in the aerobic tank to remove odor gas in the aerobic tank;
the gas-collecting hood (9) of the aerobic tank is covered on the top of the aerobic tank (4) and is used for collecting odor after aeration treatment;
the air inlet of the second fan (14) is connected to the gas collecting hood (9) of the aerobic tank, and the air outlet of the second fan is connected to the air inlet of the washing tower (15);
a washing unit is arranged in the washing tower (15) and is used for washing the odor from the second fan (14) so as to remove the residual odor gas therein and obtain deodorized gas;
an air inlet of the chimney (16) is connected to an air outlet of the scrubber tower (15) for evacuating the deodorizing gases from the scrubber tower (15).
2. The odor collection and treatment system according to claim 1, wherein pressure gauges are provided in the inter-grid gas-collecting hood (8), the aerobic tank gas-collecting hood (9), the secondary sedimentation tank gas-collecting hood (10), and the sludge concentration tank gas-collecting hood (11), respectively, for measuring the relative air pressures therein, respectively.
3. The odor collection and treatment system according to claim 2 wherein said manometer is a U-column manometer.
4. The odor gas collecting and treating system according to claim 2, wherein valves are provided on the lines connecting from the air inlet of said first fan (13) to said inter-grid gas-collecting hood (8), said secondary sedimentation tank gas-collecting hood (10) and said sludge concentration tank gas-collecting hood (11), respectively, for adjusting the relative air pressures in said inter-grid gas-collecting hood (8), said secondary sedimentation tank gas-collecting hood (10) and said sludge concentration tank gas-collecting hood (11), respectively.
5. The odor collection and treatment system according to any one of claims 1 to 4, wherein said first fan (13) and said second fan (14) are respectively provided with a variable frequency controller therein for respectively performing automatic constant pressure variable frequency regulation of the introduced gas.
6. The odor collection and treatment system according to claim 5, wherein a pressure sensor is provided in a line connected to an air inlet of said second fan (14) for controlling a variable frequency controller in said second fan (14) for automatic constant pressure variable frequency regulation.
7. The odor gas collection and treatment system according to any one of claims 1 to 4 and 6, wherein the line connected to the air inlet of said second fan (14) is a glass steel line.
8. The odor gas collecting and treating system according to claim 7, wherein the lines respectively connected from the air inlet of the first fan (13) to the inter-grid gas-collecting hood (8), the secondary sedimentation tank gas-collecting hood (10) and the sludge concentration tank gas-collecting hood (11) are glass fiber reinforced plastic lines.
9. The odor gas collecting and treating system according to any one of claims 1 to 4 and 6, wherein the inter-grid gas collecting hood (8), the aerobic tank gas collecting hood (9), the secondary sedimentation tank gas collecting hood (10) and the sludge concentration tank gas collecting hood (11) are all glass fiber reinforced plastic gas collecting hoods.
10. The odor gas collecting and treating system according to any one of claims 1 to 4, 6 and 8, wherein a dehydration means is further provided in said washing tower (15), said dehydration means being provided at an air outlet of said washing tower (15) for removing moisture from said deodorizing gas.
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| CN202022393635.6U CN213834953U (en) | 2020-10-23 | 2020-10-23 | Odor collecting and treating system for domestic sewage treatment system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113998782A (en) * | 2021-10-13 | 2022-02-01 | 北京工业大学 | Device and method for realizing autotrophic denitrification enhanced nitrogen removal through gas collection and circulation |
| CN114671516A (en) * | 2022-05-30 | 2022-06-28 | 河北天大环境研究院有限公司 | Deodorization filler module, town sewage treatment system containing same and use method |
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2020
- 2020-10-23 CN CN202022393635.6U patent/CN213834953U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113998782A (en) * | 2021-10-13 | 2022-02-01 | 北京工业大学 | Device and method for realizing autotrophic denitrification enhanced nitrogen removal through gas collection and circulation |
| CN114671516A (en) * | 2022-05-30 | 2022-06-28 | 河北天大环境研究院有限公司 | Deodorization filler module, town sewage treatment system containing same and use method |
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