Sewage treatment module based on photovoltaic system power generation and intelligent control method

Abstract

The invention relates to a sewage treatment module based on photovoltaic system power generation and an intelligent control method.The module is additionally provided with a solar photovoltaic power generation system on the overground part and comprises an anaerobic tank, an anoxic tank, an aerobic tank, a sedimentation tank, a disinfection tank, a storage battery, an inverter, a control box, an aeration fan, a fan outlet flowmeter, an air pipe and the like. An anaerobic tank, an anoxic tank, an aerobic tank, a sedimentation tank and a disinfection tank are sequentially arranged from upstream to downstream of sewage treatment, a water inlet pipe is mounted at the front end of the anaerobic tank, and a water outlet pipe is mounted at the tail end of the disinfection tank. The system is not connected with municipal electricity any more, solar energy is converted into electric energy through the photovoltaic panel installed above the station, and the converted electric energy is converged, distributed and protected through the junction box and other devices and then stored through the storage battery. A traditional power taking mode is changed, the solar photovoltaic power generation system is adopted to supply power to the sewage treatment module, energy is saved, and meanwhile environmental pollution caused by power generation is avoided.

Description

Technical Field

[0001] The present invention relates to a sewage treatment module and an intelligent control method, and in particular to a sewage treatment module and an intelligent control method based on photovoltaic system power generation, which can save energy and avoid environmental pollution caused by power generation. Background Art

[0002] As an inexhaustible clean energy, solar energy plays an important role in environmental protection. With the continuous advancement of technology and the gradual reduction of costs, the economic efficiency of solar photovoltaic power generation technology has also been improved, providing the possibility for a wider range of applications.

[0003] In the field of sewage treatment, the current operation of the stations is mainly based on municipal electricity. Usually, due to the high energy consumption of equipment operation, it is inconvenient for sewage treatment stations in some remote areas to connect to electricity, which reduces the investment benefits of sewage treatment and makes most sewage treatment stations become "sunbathing" projects. Solar photovoltaic power generation technology can provide green and clean energy for sewage treatment stations, reduce electricity costs, reduce equipment later operation costs, achieve electricity self-sufficiency, etc., which helps promote green and low-carbon development and achieve a win-win situation of economic and environmental benefits. Summary of the invention

[0004] In view of the above problems, the main purpose of the present invention is to provide a sewage treatment module and an intelligent control method based on photovoltaic power generation, which can save energy and avoid environmental pollution caused by power generation.

[0005] The present invention solves the above-mentioned technical problems through the following technical solutions: a sewage treatment module based on photovoltaic system power generation, wherein a solar photovoltaic power generation system is added to the ground part of the sewage treatment module based on photovoltaic system power generation, and the sewage treatment module based on photovoltaic system power generation comprises: a water inlet pipe, an anaerobic tank, a water hole from the anaerobic tank to the anoxic tank, an anoxic tank, an anoxic tank inspection manhole, an anoxic tank aeration pipe, a water hole from the anoxic tank to the aerobic tank, an aerobic tank, an aerobic tank aeration pipe, a water hole from the aerobic tank to the sedimentation tank, an aerobic tank and a sedimentation tank inspection manhole, a sedimentation tank, a water hole from the sedimentation tank to the disinfection tank, a disinfection tank, a water outlet pipe, a photovoltaic panel, a storage battery, an inverter, a control box, an aeration fan, a fan outlet flow meter, and an air duct.

[0006] From upstream to downstream of sewage treatment, they are: anaerobic tank, anoxic tank, aerobic tank, sedimentation tank, and disinfection tank. The inlet pipe is installed at the front end of the anaerobic tank, and the outlet pipe is installed at the end of the disinfection tank.

[0007] A water passage hole from the anaerobic tank to the anoxic tank is arranged on the partition between the anaerobic tank and the anoxic tank, and an anoxic tank aeration pipe is arranged inside the anoxic tank.

[0008] A water passage hole from the anoxic pool to the aerobic pool is arranged on the partition between the anoxic pool and the aerobic pool.

[0009] An aerobic tank aeration pipe is arranged inside the aerobic tank, and a water passage hole from the aerobic tank to the sedimentation tank is arranged on the partition between the aerobic tank and the sedimentation tank.

[0010] A water passage hole from the sedimentation tank to the disinfection tank is arranged on the partition between the sedimentation tank and the disinfection tank.

[0011] The solar photovoltaic power generation system includes: photovoltaic panels, storage batteries, and inverters. The inverter is connected to the control box through a circuit, and the storage battery is located between the photovoltaic panels and the inverter.

[0012] The aeration fan and the fan outlet flow meter are arranged in the control box.

[0013] The air outlet pipe of the fan is divided into two routes, which are respectively connected to the aeration pipe of the anoxic tank and the aeration pipe of the aerobic tank.

[0014] In a specific implementation example of the present invention, an anoxic pool maintenance manhole is provided on the top of the anoxic pool.

[0015] In a specific implementation example of the present invention, an inspection manhole for the aerobic tank and a inspection manhole for the sedimentation tank are arranged above the aerobic tank and the sedimentation tank.

[0016] In a specific implementation example of the present invention, the distance from the center of the water hole from the anaerobic tank to the anoxic tank to the bottom plate of the equipment ranges from 100 to 300 mm, and the size ranges from (250-350) × (150-250) mm.

[0017] In a specific implementation example of the present invention, the distance from the center of the water hole from the anoxic pool to the aerobic pool to the top plate of the equipment ranges from 100 to 300 mm, and the size ranges from (250-350) × (150-250) mm.

[0018] In a specific implementation example of the present invention, the distance from the center of the water hole from the aerobic tank to the sedimentation tank to the bottom plate of the equipment ranges from 100 to 300 mm, and the size ranges from (250 to 350) × (150 to 250) mm.

[0019] In a specific implementation example of the present invention, the distance from the center of the water hole from the sedimentation tank to the disinfection tank to the top plate of the equipment ranges from 100 to 300 mm, and the size ranges from (250-350) × (150-250) mm.

[0020] In a specific implementation example of the present invention, incoming water enters the anaerobic tank through a water inlet pipe, and anaerobic bacteria in the anaerobic tank hydrolyze macromolecular organic matter in the sewage. At the same time, polyphosphate bacteria can perform anaerobically phosphorus release in the anaerobic tank. After the sewage stays in the anaerobic tank for 1 to 1.5 hours, it enters the anoxic tank through a water hole from the anaerobic tank to the anoxic tank. The sewage stays in the anoxic tank for 4 to 5 hours, and the facultative bacteria grown in the anoxic tank can denitrify the nitrate nitrogen pollutants in the sewage; an anoxic tank aeration pipe arranged at the bottom of the anoxic tank performs intermittent aeration to maintain the dissolved oxygen content in the anoxic tank within the range of 0.2 to 0.4 mg / L, and stirring is performed at the same time to prevent the sludge in the anoxic tank from being deposited at the bottom of the equipment; a maintenance manhole is arranged above the anoxic tank, and the operating status and equipment in the anoxic tank are observed and repaired when the equipment is running; the sewage is passed through a manhole. The sewage enters the aerobic tank through the water hole from the anoxic tank to the aerobic tank. The aerobic microorganisms grown in the aerobic tank aerobically degrade organic pollutants, ammonia nitrogen and other pollutants in the sewage. At the same time, polyphosphate bacteria absorb a large amount of phosphorus in the aerobic tank, thereby realizing the process of biological phosphorus removal. The aerobic tank aeration pipe arranged at the bottom of the aerobic tank is continuously aerated to maintain the dissolved oxygen content in the aerobic tank within the range of 2-4 mg / L. After the sewage stays in the aerobic tank for 6-7 hours, it enters the sedimentation tank through the water hole from the aerobic tank to the sedimentation tank. A maintenance manhole is set above the aerobic tank and the sedimentation tank. After the sewage realizes the mud and water separation in the sedimentation tank, the supernatant enters the disinfection tank through the water hole from the sedimentation tank to the disinfection tank, and disinfectant is added to the disinfection tank to ensure that the disinfection residence time is full for 0.5-1 hour, and the treated clean water is discharged from the outlet pipe.

[0021] In a specific implementation example of the present invention, the method includes: the photocurrent generated by the photovoltaic panel is connected to the storage battery through a wire, and the photocurrent is stored in the storage battery, which can ensure that the equipment can be continuously powered at night or in continuous rainy weather; the storage battery is connected to the inverter through a wire, and the direct current is converted into alternating current after passing through the inverter, and then connected to the control box; the aeration fan in the control box provides the air volume required for the operation of the sewage treatment device, and the air generated by the aeration fan is monitored by a flow meter set at the outlet of the fan, and then the air is transported to the aeration pipe of the anoxic tank and the aeration pipe of the aerobic tank in the sewage treatment device through the aeration pipeline to perform aeration in the equipment.

[0022] The positive progressive effect of the present invention is that the sewage treatment device provided by the present invention that uses a photovoltaic system to generate electricity has the following advantages compared to common technologies: the present invention no longer needs to be connected to municipal electricity, and uses photovoltaic panels installed above the site to convert solar energy into electrical energy. The converted electrical energy is gathered, distributed and protected through devices such as junction boxes, and then stored by storage batteries. Since the stored electricity is direct current, it is necessary to use an inverter to convert 24V direct current into 24V alternating current, and then enter the control box through the control box power cord to power all power-consuming devices in the site. The present invention changes the traditional way of taking electricity, and uses a solar photovoltaic power generation system to power the sewage treatment device, which saves energy while avoiding environmental pollution caused by power generation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] The following are the names corresponding to the labels in the present invention:

[0025] Water inlet pipe 1, anaerobic tank 2, water hole from anaerobic tank to anoxic tank 3, anoxic tank 4, anoxic tank inspection manhole 5, anoxic tank aeration pipe 6, water hole from anoxic tank to aerobic tank 7, aerobic tank 8, aerobic tank aeration pipe 9, water hole from aerobic tank to sedimentation tank 10, inspection manhole for aerobic tank and sedimentation tank 11, sedimentation tank 12, water hole from sedimentation tank to disinfection tank 13, disinfection tank 14, water outlet pipe 15, photovoltaic panel 16, battery 17, inverter 18, control box 19, aeration fan 20, fan outlet flow meter 21, air duct 22. DETAILED DESCRIPTION

[0026] Preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to illustrate the technical solutions of the present invention in detail.

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention, as shown in Figure 1 As shown, the present invention proposes a sewage treatment module based on photovoltaic system power generation, and the sewage treatment module based on photovoltaic system power generation is additionally provided with a solar photovoltaic power generation system on the ground part, and the sewage treatment module based on photovoltaic system power generation comprises: an inlet pipe 1, an anaerobic tank 2, a water hole 3 from the anaerobic tank to the anoxic tank, an anoxic tank 4, an anoxic tank inspection manhole 5, an anoxic tank aeration pipe 6, an anoxic tank to aerobic tank water hole 7, an aerobic tank 8, an aerobic tank aeration pipe 9, an aerobic tank to sedimentation tank water hole 10, an aerobic tank and sedimentation tank inspection manhole 11, a sedimentation tank 12, a sedimentation tank to disinfection tank water hole 13, a disinfection tank 14, a water outlet pipe 15, a photovoltaic panel 16, a storage battery 17, an inverter 18, a control box 19, an aeration fan 20, a fan outlet flow meter 21, and an air duct 22.

[0028] From upstream to downstream of the sewage treatment, they are: anaerobic tank 2, anoxic tank 4, aerobic tank 8, sedimentation tank 12, disinfection tank 14, the water inlet pipe 1 is installed on the anaerobic tank 2, and the water outlet pipe 15 is installed on the disinfection tank 14; a water passage hole 3 from the anaerobic tank to the anoxic tank is provided on the partition between the anaerobic tank 2 and the anoxic tank 4, an anoxic tank maintenance manhole 5 is provided on the top of the anoxic tank 4, and an anoxic tank aeration pipe 6 is provided inside the anoxic tank 4; a water passage hole 7 from the anoxic tank to the aerobic tank is provided on the partition between the anoxic tank 4 and the aerobic tank 8.

[0029] An aerobic tank aeration pipe 9 is provided inside the aerobic tank 8, and a water hole 10 from the aerobic tank to the sedimentation tank is provided on the partition between the aerobic tank 8 and the sedimentation tank 12; an aerobic tank and sedimentation tank maintenance manhole 11 is provided above the aerobic tank 8 and the sedimentation tank 12; a water hole 13 from the sedimentation tank to the disinfection tank is provided on the partition between the sedimentation tank 12 and the disinfection tank 14.

[0030] The solar photovoltaic power generation system includes: a photovoltaic panel 16, a storage battery 17, and an inverter 18. The inverter 18 is connected to a control box 19 through a circuit. The storage battery 17 is located between the photovoltaic panel 16 and the inverter 18. An aeration fan 20 and a fan outlet flow meter 21 are arranged in the control box 19. The outlet pipe of the air duct 22 is divided into two paths, which are respectively connected to the anoxic tank aeration pipe 6 and the aerobic tank aeration pipe 9.

[0031] The distance range from the center of the water hole 3 from the anaerobic tank to the anoxic tank in the present invention to the bottom plate of the equipment is: 100-300mm, and the size range is (250-350)×(150-250)mm. The distance range from the center of the water hole 7 from the anoxic tank to the aerobic tank to the top plate of the equipment is: 100-300mm, and the size range is (250-350)×(150-250)mm. The distance range from the center of the water hole 10 from the aerobic tank to the sedimentation tank to the bottom plate of the equipment is: 100-300mm, and the size range is (250-350)×(150-250)mm. The distance range from the center of the water hole 13 from the sedimentation tank to the top plate of the equipment is: 100-300mm, and the size range is (250-350)×(150-250)mm. In the specific implementation process, the above parameters can select other values ​​or ranges according to needs.

[0032] The following is a specific implementation example:

[0033] The incoming water enters the anaerobic tank 2 through the DN50 water inlet pipe 1. The anaerobic bacteria in the anaerobic tank 2 hydrolyze the macromolecular organic matter in the sewage. At the same time, the polyphosphate bacteria can release phosphorus anaerobically in the anaerobic tank 2. After the sewage stays in the anaerobic tank 2 for 1 to 1.5 hours, it enters the anoxic tank 4 through the anaerobic tank to anoxic tank water hole 3 with a size of 300×200mm and a hole center distance of 200mm from the bottom plate of the equipment. The sewage stays in the anoxic tank 4 for 4 to 5 hours. The facultative bacteria grown in the anoxic tank 4 can denitrify the nitrate nitrogen pollutants in the sewage. The anoxic tank aeration pipe 6 arranged at the bottom of the anoxic tank 4 is intermittently aerated, mainly to maintain the dissolved oxygen content in the anoxic tank 4 within the range of 0.2 to 0.4 mg / L, and stir at the same time to prevent the sludge in the anoxic tank 4 from being deposited at the bottom of the equipment. A maintenance manhole 5 is set above the anoxic tank 4 to observe and repair the operating status and equipment in the anoxic tank 4 when the equipment is running. The sewage enters the aerobic tank 8 through the anoxic tank to aerobic tank water hole 7, which is 200mm from the center of the hole to the top plate of the equipment and has a size of 300×200mm. The aerobic microorganisms grown in the aerobic tank 8 aerobically degrade organic pollutants, ammonia nitrogen and other pollutants in the sewage. At the same time, polyphosphate bacteria absorb a large amount of phosphorus in the aerobic tank 8, thereby realizing the process of biological phosphorus removal. The aerobic tank aeration pipe 9 arranged at the bottom of the aerobic tank 8 is continuously aerated, mainly to maintain the dissolved oxygen content in the aerobic tank 8 within the range of 2-4mg / L, to ensure the survival and degradation conditions of aerobic microorganisms. After the sewage stays in the aerobic tank 8 for 6-7 hours, it enters the sedimentation tank 12 through the aerobic tank to sedimentation tank water hole 10, which is 200mm from the center of the hole to the bottom plate of the equipment and has a size of 300×200mm. A maintenance manhole 11 is set above the aerobic tank and the sedimentation tank. After the sewage is separated from the mud and water in the sedimentation tank 12, the supernatant enters the disinfection tank 14 through the sedimentation tank to disinfection tank water hole 13 with a size of 300×200mm and a hole center 200mm away from the top plate of the equipment. Disinfectant is added to the disinfection tank 14 to ensure that after the disinfection residence time is 0.5 hours, the treated clean water is discharged from the outlet pipe 15, and the effluent can stably meet the Level A standard of the "Pollutant Discharge Standard for Urban Sewage Treatment Plants" (GB18918-2002).

[0034] The present invention adds a solar photovoltaic power generation system to the ground part. When sunlight shines on the photovoltaic panel 16 made of polycrystalline silicon material, the photons will interact with the atoms in the polycrystalline silicon material. If the energy of the photon is large enough, it can excite the electrons in the polycrystalline silicon and turn them into free electrons, while also leaving a hole. These free electrons and holes are photogenerated current carriers. Then, under the action of the internal electric field of the photovoltaic panel 16, the electrons and holes will be separated and collected by the front and back electrodes of the battery respectively. As they flow, a current is formed in the external circuit, which is what we call "photocurrent". The photocurrent generated by the photovoltaic panel 16 is connected to the storage battery 17 through a wire, and the photocurrent is stored in the storage battery 17, which can ensure that the equipment can be continuously powered at night or in continuous rainy weather. The storage battery 17 is connected to the inverter 18 through a wire, and the direct current is converted into alternating current after passing through the inverter 18, and then connected to the control box 19. The aeration fan 20 in the control box 19 provides the air volume required for the operation of the sewage treatment device. The air generated by the aeration fan 20 is monitored by a flow meter 21 set at the fan outlet. The air is then transported to the anoxic tank aeration pipe 6 and the aerobic tank aeration pipe 9 in the sewage treatment device through the aeration pipeline 22 to perform aeration in the equipment.

[0035] The present invention no longer uses municipal electricity. Instead, it uses photovoltaic panels installed above the site to convert solar energy into electrical energy. The converted electrical energy is gathered, distributed and protected through devices such as junction boxes, and then stored by storage batteries. Since the stored electricity is direct current, it is necessary to convert 24V direct current into 24V alternating current through an inverter, and then enter the control box through the control box power cord to power all power-consuming devices in the site. The present invention changes the traditional way of taking electricity and uses a solar photovoltaic power generation system to power the sewage treatment module. While saving energy, it also avoids environmental pollution caused by power generation.

[0036] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected, and the scope of the present invention to be protected is defined by the attached claims and their equivalents.

Claims

1. A sewage treatment module based on photovoltaic power generation, characterized in that: The sewage treatment module based on photovoltaic system power generation has a solar photovoltaic power generation system added to the ground part, and the sewage treatment module based on photovoltaic system power generation includes: an inlet pipe, an anaerobic tank, a water hole from the anaerobic tank to the anoxic tank, an anoxic tank, an anoxic tank inspection manhole, an anoxic tank aeration pipe, an anoxic tank to aerobic tank water hole, an aerobic tank, an aerobic tank aeration pipe, an aerobic tank to a sedimentation tank water hole, an aerobic tank and sedimentation tank inspection manhole, a sedimentation tank, a sedimentation tank to disinfection tank water hole, a disinfection tank, a water outlet pipe, a photovoltaic panel, a storage battery, an inverter, a control box, an aeration fan, a fan outlet flow meter, and an air duct. From upstream to downstream of sewage treatment, there are: anaerobic tank, anoxic tank, aerobic tank, sedimentation tank, disinfection tank. The inlet pipe is installed at the front end of the anaerobic tank, and the outlet pipe is installed at the end of the disinfection tank. A water hole from the anaerobic tank to the anoxic tank is arranged on the partition between the anaerobic tank and the anoxic tank, and an anoxic tank aeration pipe is arranged inside the anoxic tank; A water passage from the anoxic pool to the aerobic pool is provided on the partition between the anoxic pool and the aerobic pool; An aerobic tank aeration pipe is arranged inside the aerobic tank, and a water hole from the aerobic tank to the sedimentation tank is arranged on the partition between the aerobic tank and the sedimentation tank; A water hole from the sedimentation tank to the disinfection tank is arranged on the partition between the sedimentation tank and the disinfection tank; The solar photovoltaic power generation system includes: photovoltaic panels, storage batteries, and inverters. The inverter is connected to the control box through a circuit, and the storage battery is located between the photovoltaic panels and the inverter. The aeration fan and fan outlet flow meter are installed in the control box. The air outlet pipe of the fan is divided into two routes, which are respectively connected to the aeration pipe of the anoxic tank and the aeration pipe of the aerobic tank.

2. The sewage treatment module based on photovoltaic system power generation according to claim 1 is characterized in that: A maintenance manhole for the anoxic pool is provided on the top of the anoxic pool.

3. The sewage treatment module based on photovoltaic system power generation according to claim 1 is characterized in that: Aerobic tank and sedimentation tank inspection manholes are provided above the aerobic tank and the sedimentation tank.

4. The sewage treatment module based on photovoltaic system power generation according to claim 1 is characterized in that: The distance from the center of the water hole from the anaerobic tank to the anoxic tank to the bottom plate of the equipment ranges from 100 to 300 mm, and the size ranges from (250-350) × (150-250) mm.

5. The sewage treatment module based on photovoltaic system power generation according to claim 1 is characterized in that: The distance from the center of the water hole from the anoxic tank to the aerobic tank to the top plate of the equipment ranges from 100 to 300 mm, and the size ranges from (250-350) × (150-250) mm.

6. The sewage treatment module based on photovoltaic system power generation according to claim 1 is characterized in that: The distance from the center of the water hole from the aerobic tank to the sedimentation tank to the bottom plate of the equipment ranges from 100-300mm, and the size ranges from (250-350)×(150-250)mm.

7. The sewage treatment module based on photovoltaic system power generation according to claim 1 is characterized in that: The distance from the center of the water hole from the sedimentation tank to the disinfection tank to the top plate of the equipment ranges from 100-300mm, and the size ranges from (250-350)×(150-250)mm.

8. The sewage treatment module based on photovoltaic system power generation according to claim 1 is characterized in that: The incoming water enters the anaerobic tank through the water inlet pipe. The anaerobic bacteria in the anaerobic tank hydrolyze the macromolecular organic matter in the sewage. At the same time, the polyphosphate bacteria can release phosphorus anaerobically in the anaerobic tank. After the sewage stays in the anaerobic tank for 1 to 1.5 hours, it enters the anoxic tank through the water hole from the anaerobic tank to the anoxic tank. The sewage stays in the anoxic tank for 4 to 5 hours. The facultative bacteria grown in the anoxic tank can denitrify the nitrate nitrogen pollutants in the sewage; the anoxic tank aeration pipe arranged at the bottom of the anoxic tank is intermittently aerated to maintain the dissolved oxygen content in the anoxic tank within the range of 0.2 to 0.4 mg / L, and stirring is performed at the same time to prevent the sludge in the anoxic tank from being deposited at the bottom of the equipment; a maintenance manhole is set above the anoxic tank, and the operating status and equipment in the anoxic tank can be observed and repaired when the equipment is running; the sewage passes through the anoxic tank to the well The sewage enters the aerobic tank through the water hole of the aerobic tank. The aerobic microorganisms grown in the aerobic tank aerobically degrade organic pollutants, ammonia nitrogen and other pollutants in the sewage. At the same time, polyphosphate bacteria absorb a large amount of phosphorus in the aerobic tank, thereby realizing the process of biological phosphorus removal; the aerobic tank aeration pipe arranged at the bottom of the aerobic tank is continuously aerated to maintain the dissolved oxygen content in the aerobic tank within the range of 2-4 mg / L. After the sewage stays in the aerobic tank for 6-7 hours, it enters the sedimentation tank through the water hole from the aerobic tank to the sedimentation tank. A maintenance manhole is set above the aerobic tank and the sedimentation tank; after the sewage realizes the mud and water separation in the system in the sedimentation tank, the supernatant enters the disinfection tank through the water hole from the sedimentation tank to the disinfection tank, and disinfectant is added to the disinfection tank to ensure that the disinfection residence time is full for 0.5-1 hour, and the treated clean water is discharged from the outlet pipe.

9. The intelligent control method of the sewage treatment module based on photovoltaic system power generation according to claims 1-8 is characterized in that: The method comprises: the photocurrent generated by the photovoltaic panel is connected to the storage battery through a wire, and the photocurrent is stored in the storage battery, which can ensure that the equipment can be continuously powered at night or in continuous rainy weather; the storage battery is connected to the inverter through a wire, and the direct current is converted into alternating current after passing through the inverter, and then connected to the control box; the aeration fan in the control box provides the air volume required for the operation of the sewage treatment device, and the air generated by the aeration fan is monitored by a flow meter set at the outlet of the fan, and then the air is transported to the aeration pipe of the anoxic tank and the aeration pipe of the aerobic tank in the sewage treatment device through the aeration pipeline to perform aeration in the equipment.

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