Sewage treatment module based on photovoltaic system power generation

Abstract

The utility model relates to a sewage treatment module based on photovoltaic system power generation, which is characterized in that a solar photovoltaic power generation system is additionally arranged on the overground part of the module, and the module 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, the anaerobic tank, the anoxic tank, the aerobic tank, the sedimentation tank and the disinfection tank are sequentially arranged from the upstream to the downstream of sewage treatment, the water inlet pipe is mounted on the anaerobic tank, and the water outlet pipe is mounted on the disinfection tank. The solar power station 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 devices such as the junction box and then stored by the storage battery. According to the utility model, the traditional power taking mode is changed, and the solar photovoltaic power generation system is adopted to supply power to the sewage treatment module, so that the energy is saved, and meanwhile, the environmental pollution caused by power generation is also avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sewage treatment module, concretely relates to a sewage treatment module based on photovoltaic system power generation which saves energy and avoids environmental pollution caused by power generation. BACKGROUND

[0002] With the rapid growth of global energy demand, the limited nature and environmental pollution problems of traditional fossil energy such as coal and oil have become increasingly prominent, and people have begun to pay more attention to the development and utilization of renewable energy. At the same time, in order to cope with the risks brought by climate change, countries actively take action to achieve the balance between carbon emissions and carbon absorption, that is, carbon neutrality. Solar energy, as a kind of inexhaustible and clean energy, plays an important role in environmental protection. With the continuous progress of technology and the gradual reduction of cost, the economy of solar photovoltaic power generation technology has also been improved, making it possible for wider application.

[0003] In the field of sewage treatment, the current site operation is mainly based on municipal power supply. Because of high energy consumption of equipment operation, some remote sewage treatment sites are not convenient to connect to electricity, which reduces the investment benefit of sewage treatment and makes most of the sewage treatment sites become "sunbathing" projects. Solar photovoltaic power generation technology can provide green and clean energy for sewage treatment sites, reduce power cost expenditure, reduce equipment operation cost in later period, realize self-sufficiency in power supply, and help promote green and low-carbon development, realizing the win-win of economic benefit and environmental benefit. CONTENT OF THE UTILITY MODEL

[0004] In view of the above problems, the main purpose of the utility model is to provide a sewage treatment module based on photovoltaic system power generation which saves energy and avoids environmental pollution caused by power generation.

[0005] The utility model solves the above technical problems through the following technical scheme: a sewage treatment module based on photovoltaic system power generation, which is additionally provided with a solar photovoltaic power generation system on the ground part, and comprises: a water inlet pipe, an anaerobic tank, an anaerobic tank-to-anoxic tank water hole, an anoxic tank, an anoxic tank maintenance 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-sedimentation tank water hole, an aerobic tank and a sedimentation tank maintenance 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 flowmeter and a wind pipe.

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

[0007] The partition between the anaerobic tank and the anoxic tank is provided with an anaerobic tank-to-anoxic tank water passing hole, and the anoxic tank is internally provided with an anoxic tank aeration pipe.

[0008] The partition between the anoxic tank and the aerobic tank is provided with an anoxic tank-to-aerobic tank water passing hole.

[0009] The aerobic tank is internally provided with an aerobic tank aeration pipe, and the partition between the aerobic tank and the sedimentation tank is provided with an aerobic tank-to-sedimentation tank water passing hole.

[0010] The partition between the sedimentation tank and the disinfection tank is provided with a sedimentation tank-to-disinfection tank water passing hole.

[0011] The solar photovoltaic power generation system comprises a photovoltaic panel, a storage battery and an inverter, the inverter is connected to a control box through a circuit, and the storage battery is located between the photovoltaic panel 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 paths and connected to the anoxic tank aeration pipe and the aerobic tank aeration pipe respectively.

[0014] In the embodiment of the utility model, the anoxic tank is provided with an anoxic tank manhole on the top.

[0015] In the embodiment of the utility model, the aerobic tank and the sedimentation tank are provided with aerobic tank and sedimentation tank manholes above.

[0016] In the embodiment of the utility model, the distance between the center of the anaerobic tank-to-anoxic tank water passing hole and the equipment bottom plate ranges from 100 to 300 mm, and the size ranges from (250-350) x (150-250) mm.

[0017] In the embodiment of the utility model, the distance between the center of the anaerobic tank-to-anoxic tank water passing hole and the equipment bottom plate ranges from 100 to 300 mm, and the size ranges from (250-350) x (150-250) mm.

[0018] In the embodiment of the utility model, the distance between the center of the anaerobic tank-to-anoxic tank water passing hole and the equipment bottom plate ranges from 100 to 300 mm, and the size ranges from (250-350) x (150-250) mm.

[0019] In the embodiment of the utility model, the distance between the center of the anaerobic tank-to-anoxic tank water passing hole and the equipment bottom plate ranges from 100 to 300 mm, and the size ranges from (250-350) x (150-250) mm.

[0020] In the specific embodiment of the utility model, the water enters the anaerobic tank through the water inlet pipe, the macromolecular organic matter in the sewage is hydrolyzed by the anaerobic bacteria in the anaerobic tank, and the phosphorus-releasing bacteria can release phosphorus in the anaerobic tank, the sewage stays in the anaerobic tank for 1-1.5 hours, then enters the anoxic tank through the water hole between the anaerobic tank and the anoxic tank, stays in the anoxic tank for 4-5 hours, the facultative bacteria growing in the anoxic tank can denitrify and remove nitrogen from the nitrate nitrogen pollutants in the sewage, the anoxic tank aerator arranged at the bottom of the anoxic tank is used for intermittent aeration, so that the dissolved oxygen content in the anoxic tank is maintained within the range of 0.2-0.4 mg / L, and the anoxic tank is stirred to prevent the sludge in the anoxic tank from depositing at the bottom of the equipment, the manhole arranged above the anoxic tank is used for observing and repairing the operation state of the anoxic tank and the equipment during the operation of the equipment, the sewage enters the aerobic tank through the water hole between the anoxic tank and the aerobic tank, the aerobic microorganism growing in the aerobic tank degrades the organic pollutants and ammonia nitrogen in the sewage, and the phosphorus-releasing bacteria absorb a large amount of phosphorus in the aerobic tank, so that the biological phosphorus removal process is realized, the aerobic tank aerator arranged at the bottom of the aerobic tank is used for continuous aeration, so that the dissolved oxygen content in the aerobic tank is maintained within the range of 2-4 mg / L, the sewage stays in the aerobic tank for 6-7 hours, then enters the sedimentation tank through the water hole between the aerobic tank and the sedimentation tank, and the manhole arranged above the aerobic tank and the sedimentation tank is used for repairing; after the sludge and water in the sewage are separated in the sedimentation tank, the supernatant enters the disinfection tank through the water hole between the sedimentation tank and the disinfection tank, the disinfectant is added into the disinfection tank, the treated water is discharged through the water outlet pipe after the disinfection time is 0.5-1 hours.

[0021] The utility model discloses a sewage treatment device of photovoltaic system power generation has the advantages that the utility model discloses a sewage treatment device of photovoltaic system power generation does not connect municipal power supply any more, converts solar energy into electric energy through the photovoltaic panel installed above the station, and the converted electric energy is gathered, distributed and protected through the junction box etc. device, then is stored by the storage battery. Since the stored electricity is direct current, needs through inverter to change 24V direct current into 24V alternating current, then enters the control box through control box power line, carries out power supply to all power -consuming equipment in the station. The utility model changes the traditional power taking mode, adopts the solar photovoltaic power generation system to carry out power supply to the sewage treatment device, saves the energy source simultaneously, also avoids the environmental pollution caused by power generation. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the whole structure schematic diagram of the utility model.

[0023] The following is the name corresponding to the mark in the utility model:

[0024] 1. Inlet pipe; 2. Anaerobic tank; 3. Water passage from anaerobic tank to anoxic tank; 4. Anoxic tank maintenance manhole; 5. Anoxic tank aeration pipe; 6. Anoxic tank to aerobic tank water passage; 7. Aerobic tank; 8. Aerobic tank aeration pipe; 9. Aerobic tank to sedimentation tank water passage; 10. Aerobic tank and sedimentation tank maintenance manhole; 11. Sedimentation tank; 12. Sedimentation tank to disinfection tank water passage; 13. Disinfection tank; 14. Outlet pipe; 15. Photovoltaic panel; 16. Storage battery; 17. Inverter; 18. Control box; 19. Aeration blower; 20. Blower outlet flow meter; 21. Air duct; 22. Detailed Implementation

[0025] The preferred embodiments of this utility model are given below with reference to the accompanying drawings to illustrate the technical solution of this utility model in detail.

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention, as shown below. Figure 1 As shown, this utility model proposes a wastewater treatment module based on a photovoltaic system for power generation. The wastewater treatment module based on a photovoltaic system for power generation has a solar photovoltaic power generation system added to its above-ground portion. The wastewater treatment module based on a photovoltaic system for power generation includes: an inlet pipe 1, an anaerobic tank 2, a water passage from the anaerobic tank to the anoxic tank 3, an anoxic tank 4, a maintenance manhole for the anoxic tank 5, an aeration pipe for the anoxic tank 6, a water passage from the anoxic tank to the aerobic tank 7, an aerobic tank 8, an aeration pipe for the aerobic tank 9, a water passage from the aerobic tank to the sedimentation tank 10, maintenance manholes for the aerobic tank and sedimentation tank 11, a sedimentation tank 12, a water passage from the sedimentation tank to the disinfection tank 13, a disinfection tank 14, an outlet pipe 15, a photovoltaic panel 16, a storage battery 17, an inverter 18, a control box 19, an aeration blower 20, a blower outlet flow meter 21, and a duct 22.

[0027] From upstream to downstream, the wastewater treatment system consists of: anaerobic tank 2, anoxic tank 4, aerobic tank 8, sedimentation tank 12, and disinfection tank 14. Inlet pipe 1 is installed at the front end of anaerobic tank 2, and outlet pipe 15 is installed at the end of disinfection tank 14. A water passage 3 from the anaerobic tank to the anoxic tank is provided on the partition between anaerobic tank 2 and anoxic tank 4. An anoxic tank maintenance manhole 5 is provided on the top of anoxic tank 4, and an anoxic tank aeration pipe 6 is installed inside anoxic tank 4. A water passage 7 from the anoxic tank to the aerobic tank is provided on the partition between anoxic tank 4 and aerobic tank 8.

[0028] The aerobic tank 8 is equipped with an aerobic tank aeration pipe 9. The partition between the aerobic tank 8 and the sedimentation tank 12 is equipped with a water passage hole 10 from the aerobic tank to the sedimentation tank. The aerobic tank 8 and the sedimentation tank 12 are equipped with a maintenance manhole 11 above the aerobic tank and the sedimentation tank. The partition between the sedimentation tank 12 and the disinfection tank 14 is equipped with a water passage hole 13 from the sedimentation tank to the disinfection tank.

[0029] The solar photovoltaic power generation system comprises a photovoltaic panel 16, a storage battery 17, an inverter 18, the inverter 18 being connected to a control box 19 through a circuit, the storage battery 17 being located between the photovoltaic panel 16 and the inverter 18, an aeration fan 20 and a fan outlet flowmeter 21 being arranged in the control box 19, one end of a wind pipe 22 being connected to the control box 19, and the outlet pipe of the fan being divided into two paths and being connected to the anoxic tank aeration pipe 6 and the aerobic tank aeration pipe 9 respectively.

[0030] The distance between the center of the water hole 3 from the anaerobic tank to the anoxic tank and the equipment bottom plate is in the range of 100-300mm, and the size range is (250-350) x (150-250) mm. The distance between the center of the water hole 7 from the anoxic tank to the aerobic tank and the equipment top plate is in the range of 100-300mm, and the size range is (250-350) x (150-250) mm. The distance between the center of the water hole 10 from the aerobic tank to the sedimentation tank and the equipment bottom plate is in the range of 100-300mm, and the size range is (250-350) x (150-250) mm. The distance between the center of the water hole 13 from the sedimentation tank to the disinfection tank and the equipment top plate is in the range of 100-300mm, and the size range is (250-350) x (150-250) mm. In the specific implementation process, the above parameters can be selected as other values or ranges according to the requirements.

[0031] The following is a specific example:

[0032] The water enters the anaerobic tank 2 through the DN50 inlet pipe 1. The anaerobic bacteria in the anaerobic tank 2 hydrolyzes the macromolecular organic matter in the sewage, and the phosphorus-accumulating bacteria can release phosphorus in the anaerobic tank 2. After the sewage stays in the anaerobic tank 2 for 1-1.5 hours, it enters the anoxic tank 4 through the water hole 3 between the anaerobic tank and the anoxic tank, with the hole center distance being 200mm from the equipment bottom plate and the size being 300*200mm. The sewage stays in the anoxic tank 4 for 4-5 hours. The facultative bacteria growing in the anoxic tank 4 can denitrify and remove nitrogen from the nitrate nitrogen pollutants in the sewage. The anoxic tank aeration pipe 6 arranged at the bottom of the anoxic tank 4 performs intermittent aeration, mainly to maintain the dissolved oxygen content in the anoxic tank 4 within the range of 0.2-0.4mg / L, and to stir to prevent the sludge in the anoxic tank 4 from depositing on the equipment bottom. The manhole 5 is arranged above the anoxic tank 4 for observation and maintenance of the operation state of the anoxic tank 4 and the equipment during operation. The sewage enters the aerobic tank 8 through the water hole 7 between the anoxic tank and the aerobic tank, with the hole center distance being 200mm from the equipment top plate and the size being 300*200mm. The aerobic microorganisms growing in the aerobic tank 8 degrade the organic pollutants, ammonia nitrogen and other pollutants in the sewage, and the phosphorus-accumulating bacteria absorb a large amount of phosphorus in the aerobic tank 8, thereby realizing the biological phosphorus removal process. The aerobic tank aeration pipe 9 arranged at the bottom of the aerobic tank 8 performs continuous aeration, 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 the aerobic microorganisms. After the sewage stays in the aerobic tank 8 for 6-7 hours, it enters the sedimentation tank 12 through the water hole 10 between the aerobic tank and the sedimentation tank, with the hole center distance being 200mm from the equipment bottom plate and the size being 300*200mm. The manhole 11 is arranged above the aerobic tank and the sedimentation tank. After the sewage realizes the sludge-water separation in the sedimentation tank 12, the supernatant enters the disinfection tank 14 through the water hole 13 between the sedimentation tank and the disinfection tank, with the hole center distance being 200mm from the equipment top plate and the size being 300*200mm. The disinfectant is added into the disinfection tank 14. After ensuring that the disinfection retention time is 0.5 hours, the treated water is discharged through the outlet pipe 15. The outlet water can stably reach the first level A standard of the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB18918-2002).

[0033] The utility model discloses a solar photovoltaic power generation system is increased on the ground part, when the sunlight is irradiated to the photovoltaic board 16 made of polycrystalline silicon material, photon will interact with the atom in polycrystalline silicon material. If the energy of photon is enough big, it can excite the electron in polycrystalline silicon, become free electron, and also leave a hole. These free electrons and holes are photo-generated carrier. Then, under the internal electric field of photovoltaic board 16, electron and hole will be separated and are collected by the positive and back electrode of battery respectively. With their flow, the current is formed in the external circuit, this is what we call "photocurrent". The photocurrent generated by photovoltaic board 16 is connected with storage battery 17 through wire, and the photocurrent is stored in storage battery 17, can ensure night or continuous rainy weather, and can continuously power supply to equipment. Storage battery 17 is connected with inverter 18 through wire, and the direct current is converted into alternating current through inverter 18, and then is connected into control box 19. The aeration fan 20 in control box 19 provides the air volume required for the operation of sewage treatment device, and the air produced by aeration fan 20 is monitored by flowmeter 21 arranged at the outlet of fan, and then is delivered to the anoxic tank aeration pipe 6 and the aerobic tank aeration pipe 9 in sewage treatment device through aeration pipeline 22, and carries out aeration in equipment.

[0034] The utility model discloses no longer connect municipal power, utilize the photovoltaic board installed on the site top, convert solar energy into electric energy, and the electric energy of conversion is gathered, distributed and protected through junction box and other devices, then is stored by storage battery. Since the stored electricity is direct current, needs through inverter to convert 24V direct current into 24V alternating current, and then through control box power line enters control box, and carries out power supply to all power consumption equipment in the site. The utility model discloses changed traditional power taking mode, and adopts solar photovoltaic power generation system to carry out power supply to sewage treatment module, saves the energy simultaneously, and also avoids the environmental pollution caused by power generation.

[0035] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The skilled person in the art should understand that the utility model is not limited to the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can have various changes and improvements, and these changes and improvements fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment module based on photovoltaic power generation, characterized in that: The wastewater treatment module based on photovoltaic power generation has a solar photovoltaic power generation system added to its above-ground portion. The module includes: an inlet pipe, an anaerobic tank, a water passage from the anaerobic tank to the anoxic tank, the anoxic tank, a maintenance manhole for the anoxic tank, an aeration pipe for the anoxic tank, a water passage from the anoxic tank to the aerobic tank, the aerobic tank, an aeration pipe for the aerobic tank, a water passage from the aerobic tank to the sedimentation tank, maintenance manholes for the aerobic tank and sedimentation tank, the sedimentation tank, a water passage from the sedimentation tank to the disinfection tank, the disinfection tank, an effluent pipe, photovoltaic panels, a storage battery, an inverter, a control box, an aeration fan, a fan outlet flow meter, and air ducts. From upstream to downstream, the wastewater treatment system consists of: 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. The partition between the anaerobic tank and the anoxic tank is equipped with a water passage from the anaerobic tank to the anoxic tank, and the anoxic tank is equipped with an aeration pipe inside the anoxic tank. The partition between the anoxic tank and the aerobic tank is equipped with a water passage from the anoxic tank to the aerobic tank. The aerobic tank is equipped with an aerobic tank aeration pipe, and the partition between the aerobic tank and the sedimentation tank is equipped with a water passage hole from the aerobic tank to the sedimentation tank. A water passage hole from the sedimentation tank to the disinfection tank is provided on the partition between the sedimentation tank and the disinfection tank. A solar photovoltaic (PV) power generation system includes: photovoltaic panels, a battery, and an inverter. The inverter is connected to a control box via circuitry, and the battery is located between the photovoltaic panels and the inverter. The aeration blower and blower outlet flow meter are installed inside the control box. The blower's outlet pipe is divided into two lines, which are connected to the aeration pipes of the anoxic tank and the aeration pipes of the aerobic tank, respectively.

2. The wastewater treatment module based on photovoltaic power generation according to claim 1, characterized in that: The top of the anoxic pool is equipped with an anoxic pool maintenance manhole.

3. The wastewater treatment module based on photovoltaic power generation according to claim 1, characterized in that: Manholes for maintenance of the aerobic tank and sedimentation tank are provided above them.

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

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

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

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

Images