Device for rapidly replenishing solid carbon sources in vertical artificial wetlands

Abstract

The present invention discloses a device for rapidly replenishing a solid carbon source in a vertical artificial wetland, comprising a floating plate, a first pipe installed on the floating plate, a plurality of small holes provided on the wall at the lower end of the first pipe, a closable cover plate provided at the bottom end of the first pipe, a plurality of second pipes provided circumferentially on the outer side of the bottom end of the first pipe, the second pipe is connected to the first pipe through a hose, and a plurality of small holes are provided on the wall of the second pipe; a hoisting device capable of opening the cover plate is installed on the floating plate, a horizontally arranged motor is also installed on the floating plate, the motor is connected to a battery unit located on the floating plate, a motor shaft is installed on the motor, a first connecting rope is wound around the motor shaft, the first connecting rope is connected to a plurality of second connecting ropes, and the two ends of the second connecting rope are respectively connected to the second pipe. The present invention can provide a carbon source for denitrification in a large range, can continuously provide a carbon source, and the carbon source is easy to replace, and has a good sewage treatment effect.

Description

Technical Field

[0001] The invention relates to a device for quickly supplementing a vertical artificial wetland solid carbon source, and belongs to the field of ecology. Background Art

[0002] Artificial wetlands are a new type of sewage treatment technology developed in the 1970s.

[0003] Due to its advantages of low operating costs, stable treatment effects, simple management, and the ability to be constructed according to local conditions, it has developed rapidly in recent years and has been applied to more and more fields, including the treatment of domestic sewage, contaminated surface water, non-point source pollution, mining wastewater, agricultural and animal husbandry sewage, and aquaculture wastewater.

[0004] Constructed wetland systems remove nitrogen from influent water through a variety of mechanisms, including biological, physical and chemical

[0005] The synergistic effects of several aspects, such as volatilization, ammoniation, nitrification and denitrification, plant uptake and substrate adsorption, etc. Studies have shown that the main nitrogen removal mechanism in wetlands is the nitrification and denitrification of microorganisms. Nitrification is the process in which microorganisms oxidize NH4+-N into NO2—-N and NO3—-N under aerobic conditions. Nitrification is carried out in two steps: the first step is the process of NH4+-N oxidation into NO2—-N, which is completed by strictly aerobic bacteria; the second step is the process of further oxidation of NO2—-N into NO3—-N, which is completed by facultative chemoautotrophic bacteria. Nitrification is only a change in the form of nitrogen, and real denitrification does not occur. Denitrification is the process in which microorganisms convert NO3—-N into N2O or N2 under anaerobic conditions and release it into the atmosphere. During the denitrification process, microorganisms use organic carbon in the water as an electron donor under anoxic conditions and use the nitrification product NO3—-N as an electron acceptor to reduce NO3—-N to nitrogen gas and remove it from the system.

[0006] For example, the invention patent 201210196443.3 is a method and device for replenishing solid carbon sources in vertical flow artificial wetlands: the invention loads the solid carbon source into the carbon source delivery pipeline, hydrolyzes and dissolves the organic carbon in the carbon source material, and releases it into the wetland system through the openings on the carbon source delivery pipeline and into the bottom of the wetland, thereby improving the denitrification efficiency of low-carbon and high-nitrogen sewage. However, the invention directly and artificially places the carbon source in the carbon source delivery pipeline, and there are problems such as how to remove the residue after the carbon source is released and how to replace the carbon source. These problems are particularly important in the actual artificial wetland unit of sewage treatment. Summary of the invention

[0007] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a device for quickly replenishing solid carbon sources in vertical artificial wetlands, which can provide carbon sources for denitrification on a large scale, can continuously provide carbon sources, and is easy to replace, and has a good sewage treatment effect.

[0008] Technical solution: In order to solve the above technical problems, a device for quickly replenishing solid carbon sources in a vertical artificial wetland of the present invention includes a floating plate, a first pipe is installed on the floating plate, a plurality of small holes are provided on the wall at the lower end of the first pipe, a closable cover is provided at the bottom end of the first pipe, a plurality of second pipes are provided on the outer circumference of the bottom end of the first pipe, the second pipe is connected to the first pipe through a hose, and a plurality of small holes are provided on the wall of the second pipe; a winch device that can open the cover is installed on the floating plate, and a horizontally arranged motor is also installed on the floating plate, the motor is connected to a battery unit located on the floating plate, a motor shaft is installed on the motor, a first connecting rope is wound around the motor shaft, the first connecting rope is connected to a plurality of second connecting ropes, and both ends of the second connecting rope are respectively connected to the second pipes.

[0009] Preferably, the hoisting device comprises a first hoisting unit and a second hoisting unit, and the first hoisting unit and the second hoisting unit respectively comprise a first rotating shaft and a pull rope, the pull rope passes through a pulley and is connected to the cover plate, and the pull rope is driven to move by the rotation of the first rotating shaft, thereby opening the cover plate, and the openable and closable cover plate is installed on the first pipe through a torsion spring.

[0010] Preferably, a funnel is installed at the top of the first pipe, and a closable cover is installed on the funnel.

[0011] Preferably, the battery unit comprises a solar panel and a solar cell, and the solar cell is connected to the motor to provide power for the motor.

[0012] Preferably, a stirring shaft is installed in the first pipe, a spiral stirring blade is provided on the stirring shaft, and the stirring shaft is installed on the first pipe through a bearing.

[0013] Preferably, a sensor for detecting the total nitrogen outlet water concentration is installed on the second pipeline, the sensor is connected to the controller signal, and the controller is connected to the motor.

[0014] Preferably, when the concentration detected by the sensor is greater than 25 mg / L, after the motor shaft rotates one circle, the motor shaft reverses one circle after an interval of 0.5 hours, and the cycle continues after an interval of 0.5 hours; when the concentration detected by the sensor is less than or equal to 25 mg / L and greater than 15 mg / L, after the motor shaft rotates one circle, the motor shaft reverses one circle after an interval of 1 hour, and the cycle continues after an interval of 1 hour; when the concentration detected by the sensor is less than or equal to 15 mg / L, after the motor shaft rotates one circle, the motor shaft reverses one circle after an interval of 2 hours, and the cycle continues after an interval of 2 hours.

[0015] Beneficial effects: The device for quickly replenishing the solid carbon source of a vertical artificial wetland of the present invention places solid carbon particles into the first pipe and the second pipe. After a part of the carbon source reacts, the carbon source in the funnel is automatically replenished. During the reaction of the carbon source, the carbon source in the second pipe is driven to move by a motor, thereby expanding the carbon source activity area, providing carbon source for denitrification, and greatly improving the denitrification efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention.

[0017] Figure 2 It is a structural schematic diagram of the floating plate of the present invention. DETAILED DESCRIPTION

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] like Figure 1 and Figure 2 As shown, a device for rapidly replenishing a solid carbon source in a vertical artificial wetland of the present invention comprises a floating plate 3, a first pipe is mounted on the floating plate 3, a plurality of small holes are arranged on the wall at the lower end of the first pipe, a closable cover plate 7 is arranged at the bottom end of the first pipe, a plurality of second pipes 5 are arranged circumferentially on the outer side of the bottom end of the first pipe, the second pipes 5 are connected to the first pipe through a hose, and a plurality of small holes are arranged on the wall of the second pipes 5; a hoisting device 2 capable of opening the cover plate 7 is mounted on the floating plate 3, a motor 10 arranged transversely is also mounted on the floating plate 3, the motor 10 is connected to a battery unit located on the floating plate 3, the battery unit comprises a solar panel 11 and a solar cell, the solar cell is connected to the motor 10, and provides power for the motor 10, a motor 10 shaft is mounted on the motor 10, a first connecting rope 12 is wound around the motor 10 shaft, the first connecting rope 12 is connected to a plurality of second connecting ropes 4, and the two ends of the second connecting rope 4 are respectively connected to the second pipe 5. The first connecting rope and the second connecting rope are located outside the first pipe.

[0020] In the present invention, the hoisting device 2 comprises a first hoisting unit and a second hoisting unit, and the first hoisting unit and the second hoisting unit respectively comprise a first rotating shaft and a pull rope 6, the pull rope 6 passes through a pulley and is connected to a cover plate 7, and the rotation of the first rotating shaft drives the pull rope 6 to move, thereby opening the cover plate 7, and the openable and closable cover plate 7 is installed on the first pipe through a torsion spring. A funnel is installed at the top of the first pipe, and a closable cover is installed on the funnel.

[0021] In the present invention, a stirring shaft 8 is installed in the first pipeline, and a spiral stirring blade is provided on the stirring shaft 8, and the stirring shaft 8 is installed on the first pipeline through a bearing. A sensor for detecting the total nitrogen outlet concentration is installed on the second pipeline 5, and the sensor is connected to the controller signal, and the controller is connected to the motor 10. When the concentration detected by the sensor is greater than 25 mg / L, after the motor 10 shaft rotates one circle, after an interval of 0.5 hours, the motor 10 shaft reverses one circle, after an interval of 0.5 hours, and then circulates in sequence; when the concentration detected by the sensor is less than or equal to 25 mg / L and greater than 15 mg / L, after the motor 10 shaft rotates one circle, after an interval of 1 hour, the motor 10 shaft reverses one circle, after an interval of 1 hour, and then circulates in sequence; when the concentration detected by the sensor is less than or equal to 15 mg / L, after the motor 10 shaft rotates one circle, after an interval of 2 hours, the motor 10 shaft reverses one circle, after an interval of 2 hours, and then circulates in sequence. The motor 10 shaft rotates one circle, the second pipe 5 moves to the highest point, the motor 10 shaft reverses one circle, the second pipe 5 falls, and this process is repeated in sequence to expand the contact area between the carbon source in the second pipe 5 and the bottom sewage, thereby better improving the contact between the carbon source and the sewage and improving the denitrification efficiency.

[0022] In the present invention, the controller is provided with a wireless transmission module, and the value detected by the sensor is transmitted to the terminal through the wireless transmission module. The terminal can be a mobile phone app, and the concentration can be obtained in real time through the mobile phone. The user determines whether the carbon source needs to be supplemented based on the concentration change.

[0023] When the present invention is in use, the first pipe and the second pipe 5 are filled with carbon source, and the first pipe is fixed on the floating plate 3 through the connecting piece and placed in the designated area. The stirring shaft 8 is fixed on the first pipe through the bearing and the connecting piece, and the funnel is filled with carbon source and covered with a cover. The top of the stirring shaft 8 is installed with a blade 1, and the stirring shaft 8 is driven to rotate by the blade 1, thereby driving the carbon source to move continuously downward. The controller periodically adjusts the working frequency of the motor 10 through the sensor value, so that the carbon source is more fully in contact with the sewage, the range of the carbon source is expanded, and the carbon source is consumed more quickly. When the carbon source needs to be replaced, the second pipe 5 is moved to the highest point by the motor 10, and the residues of the second pipe 5 and the first pipe are both located at the bottom of the first pipe, the hoisting device 2 works, the cover plate 7 is opened, and the residue is discharged through the cover plate 7. The motor 10 is reversed, and the first pipe is put back. When it reaches the designated position, the hoisting device 2 is released and the cover plate 7 is closed. The motor 10 works, so that the second pipeline 5 is in a downward tilted state, and the carbon source is added to the first pipeline 9 and the second pipeline 5 through the funnel. When they are full, the cover is closed to enter the next working cycle.

[0024] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A device for rapidly replenishing solid carbon sources in vertical artificial wetlands, characterized in that: The invention comprises a floating plate, a first pipe is installed on the floating plate, a plurality of small holes are arranged on the wall at the lower end of the first pipe, a closable cover is arranged at the bottom end of the first pipe, a plurality of second pipes are arranged circumferentially on the outer side of the bottom end of the first pipe, the second pipe is connected with the first pipe through a hose, and a plurality of small holes are arranged on the wall of the second pipe; a hoisting device capable of opening the cover is installed on the floating plate, a horizontally arranged motor is also installed on the floating plate, the motor is connected with a battery unit located on the floating plate, a motor shaft is installed on the motor, a first connecting rope is wound around the motor shaft, the first connecting rope is connected with a plurality of second connecting ropes, and both ends of the second connecting rope are respectively connected with the second pipe; the second pipe A sensor for detecting the total nitrogen outlet concentration is installed, the sensor is connected to the controller signal, the controller is connected to the motor, when the concentration detected by the sensor is greater than 25 mg / L, after the motor shaft rotates one circle, the motor shaft reverses one circle after an interval of 0.5 hours, and the cycle is repeated in sequence after an interval of 0.5 hours; when the concentration detected by the sensor is less than or equal to 25 mg / L and greater than 15 mg / L, after the motor shaft rotates one circle, the motor shaft reverses one circle after an interval of 1 hour, and the cycle is repeated in sequence after an interval of 1 hour; when the concentration detected by the sensor is less than or equal to 15 mg / L, after the motor shaft rotates one circle, the motor shaft reverses one circle after an interval of 2 hours, and the cycle is repeated in sequence after an interval of 2 hours.

2. The device for rapidly replenishing solid carbon sources in vertical artificial wetlands according to claim 1, characterized in that: The hoisting device includes a first hoisting unit and a second hoisting unit, and the first hoisting unit and the second hoisting unit respectively include a first rotating shaft and a pull rope, the pull rope passes through a pulley and is connected to the cover plate, and the pull rope is driven to move by the rotation of the first rotating shaft, thereby opening the cover plate, and the openable and closable cover plate is installed on the first pipe through a torsion spring.

3. The device for rapidly replenishing solid carbon sources in vertical artificial wetlands according to claim 1, characterized in that: A funnel is installed at the top end of the first pipe, and a closable cover is installed on the funnel.

4. The device for rapidly replenishing solid carbon sources in vertical artificial wetlands according to claim 1, characterized in that: The battery unit includes a solar panel and a solar cell, and the solar cell is connected to the motor to provide power for the motor.

5. The device for rapidly replenishing solid carbon sources in vertical artificial wetlands according to claim 1, characterized in that: A stirring shaft is installed in the first pipe, and a spiral stirring blade is arranged on the stirring shaft. The stirring shaft is installed on the first pipe through a bearing.

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