Improved ABR (anaerobic baffled reactor) sewage treatment system for photovoltaic power generation

Abstract

The utility model discloses an improved ABR (anaerobic baffled reactor) sewage treatment system for photovoltaic power generation. The improved ABR sewage treatment system comprises an ABR sewage treatment unit, an aeration unit and a photovoltaic power generation unit, the ABR sewage treatment unit comprises a sewage treatment tank, a water inlet is connected to a water inlet lifting pump, the interior of the sewage treatment tank is divided into a plurality of compartments and a settling chamber by baffle plates, and each compartment is filled with an elastic three-dimensional filler; the aeration unit is respectively connected to each compartment; the photovoltaic power generation unit comprises a plurality of solar photovoltaic panels and a photovoltaic controller, and the water inlet lifting pump and the aeration unit are electrically connected with the photovoltaic power generation unit. According to the sewage treatment system disclosed by the utility model, the baffle plate reactor is transformed, solar energy is used for supplying power, an intermittent sewage treatment mode of aerobic operation in the presence of the sun and anaerobic operation in the absence of the sun is realized, electricity storage equipment is not needed, the treatment effect is improved, and the cost and the maintenance difficulty are effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a photovoltaic power generation-modified ABR wastewater treatment system. Background Technology

[0002] With the development of the rural economy and the improvement of living standards, the amount of sewage discharged in rural areas is increasing day by day. However, rural areas generally suffer from problems such as weak infrastructure, lack of funds, and shortage of professional operation and maintenance personnel, which makes the application of traditional sewage treatment systems in rural areas face many difficulties.

[0003] Anaerobic baffled reactors (ABRs), as a highly efficient anaerobic treatment process, have advantages such as simple structure, good treatment effect, and stable operation, and have certain application potential in rural wastewater treatment. However, simple anaerobic treatment cannot effectively degrade some wastewater. If the ABR system is modified to add aerobic aeration in certain areas, transforming simple anaerobic into anaerobic-aerobic (AO) process, the degradation effect of COD and ammonia nitrogen in the water can be further improved, ensuring the quality of effluent.

[0004] The ABR system requires a certain amount of energy to maintain normal operation, such as water pumps to lift sewage and mixing devices to ensure uniform reaction. This is a significant burden for rural areas with unstable power supply or high electricity costs.

[0005] Meanwhile, rural areas have vast space and abundant solar energy resources. Photovoltaic power generation technology has developed rapidly in recent years and its cost has gradually decreased. If photovoltaic power generation can be combined with ABR wastewater treatment systems, and solar energy can be used to provide the energy required for the wastewater treatment system, it can not only solve the energy problem of rural wastewater treatment, but also reduce operating costs and achieve energy conservation and emission reduction, which has important practical significance. Utility Model Content

[0006] In view of the above-mentioned defects or deficiencies in the existing technology, it is desirable to provide a photovoltaic power generation-modified ABR wastewater treatment system that modifies the baffled reactor and uses solar power to achieve an intermittent wastewater treatment mode that operates aerobically when there is sunshine and anaerobicly when there is no sunshine. This eliminates the need for energy storage equipment, improves treatment efficiency, and effectively reduces costs and maintenance difficulty.

[0007] This utility model provides a photovoltaic power generation-modified ABR wastewater treatment system, which includes an ABR wastewater treatment unit, an aeration unit, and a photovoltaic power generation unit.

[0008] The ABR wastewater treatment unit includes a wastewater treatment tank. One end of the wastewater treatment tank is provided with an inlet, and the other end is provided with an outlet. The inlet is connected to an inlet lift pump. The wastewater treatment tank is divided into several compartments and a sedimentation chamber in sequence from the inlet to the outlet by baffles. Each compartment is filled with elastic three-dimensional packing material.

[0009] The aeration units are respectively connected to each of the compartments;

[0010] The photovoltaic power generation unit includes several solar photovoltaic panels and a photovoltaic controller. The water inlet pump and the aeration unit are both electrically connected to the photovoltaic power generation unit.

[0011] Furthermore, the input end of the water inlet booster pump is connected to the water collection tank.

[0012] Furthermore, an exhaust pipe is connected to the top of the sewage treatment tank, and the exhaust pipe is connected to a gas storage tank.

[0013] Furthermore, both the bottom of the compartment and the sedimentation chamber are connected to vent pipes, and each vent pipe is equipped with a vent valve.

[0014] Furthermore, the aeration unit includes a blower and aeration heads. Each of the compartments is provided with a plurality of aeration heads at its bottom, and each aeration head is connected to the output end of the blower through an aeration pipe.

[0015] Furthermore, the water inlet booster pump and the blower are respectively connected to a conventional power supply.

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

[0017] The wastewater treatment system of this utility model is equipped with an ABR wastewater treatment unit, an aeration unit, and a photovoltaic power generation unit. It is powered by solar energy and is suitable for scenarios with high water quality treatment requirements, intermittent wastewater discharge, and inconvenient power supply, such as remote rural areas and mountain tourist attractions. It does not require energy storage equipment, reduces dependence on the traditional power grid, and effectively reduces costs and maintenance difficulty.

[0018] This invention improves the wastewater treatment system by introducing an aeration process and using solar power to combine aerobic and anaerobic processes. The system operates in an intermittent wastewater treatment mode, with aerobic operation when there is sunshine and anaerobic operation when there is no sunshine. This creates a suitable microbial community, which can effectively improve the removal efficiency of organic matter in wastewater and enhance the treatment effect.

[0019] It should be understood that the description in this utility model description section is not intended to limit the key or essential features of the embodiments of this utility model, nor is it intended to restrict the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0020] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0021] Figure 1 This is a structural block diagram of a wastewater treatment system;

[0022] Figure 2 This is a top-view structural diagram of a wastewater treatment system.

[0023] The diagram is labeled as follows: 1. ABR wastewater treatment unit; 2. Aeration unit; 3. Photovoltaic power generation unit;

[0024] 11. Wastewater treatment tank; 12. Inlet; 13. Outlet; 14. Inlet booster pump; 15. Baffle plate; 16. Compartment; 17. Sedimentation chamber; 18. Elastic three-dimensional packing; 19. Collection tank; 110. Exhaust pipe; 111. Gas storage tank; 112. Vent pipe; 113. Vent valve;

[0025] 21. Blower; 22. Aeration head; 23. Aeration pipe. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0027] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] Please refer to Figures 1-2 The present invention provides a photovoltaic power generation improved ABR wastewater treatment system, including an ABR wastewater treatment unit 1, an aeration unit 2 and a photovoltaic power generation unit 3;

[0029] ABR wastewater treatment unit 1 includes a wastewater treatment tank 11. One end of the wastewater treatment tank 11 is provided with an inlet 12 and the other end is provided with an outlet 13. The inlet 12 is connected to an inlet lift pump 14. The wastewater treatment tank 11 is divided into several compartments 16 and a sedimentation chamber 17 in the direction from the inlet 12 to the outlet 13 by a baffle plate 15. Each compartment 16 is filled with elastic three-dimensional packing material 18.

[0030] Aeration units 2 are connected to each compartment 16 respectively;

[0031] The photovoltaic power generation unit 3 includes several solar photovoltaic panels and a photovoltaic controller. The water inlet lift pump 14 and the aeration unit 2 are both electrically connected to the photovoltaic power generation unit 3.

[0032] In this embodiment, wastewater is injected into the wastewater treatment tank 11 by the inlet lift pump 14, and flows through each compartment 16 for treatment. Then it enters the sedimentation chamber 17 for sedimentation, and is discharged through the outlet 13.

[0033] Multiple baffles 15 are installed inside the wastewater treatment tank 11 to guide the wastewater into a unique vertical flow path, allowing the wastewater to flow sequentially in each compartment 16, forming an approximate plug flow state. The compartments 16 are filled with elastic three-dimensional packing material 18, which provides an attachment carrier for microorganisms and increases the amount of microorganisms in the water.

[0034] Under the action of microorganisms in compartment 16, the organic matter in the sewage is gradually decomposed and then flows into sedimentation chamber 17. Sedimentation chamber 17 is designed to have a retention time of more than 2 hours to ensure that the treated sewage settles. After sedimentation, the supernatant is discharged from outlet 13.

[0035] Photovoltaic power generation unit 3 consists of multiple solar photovoltaic panels, installed in sunny locations such as open spaces at the wastewater treatment plant or on building rooftops. The solar photovoltaic panels convert solar energy into direct current (DC), which is controlled and regulated by a photovoltaic controller to ensure a stable DC output.

[0036] When the sun is shining, photovoltaic power generation unit 3 supplies electricity to aeration unit 2, releasing oxygen into the water. Each compartment 16 provides an aerobic environment, promoting the growth of aerobic microorganisms. At night or on cloudy / rainy days, photovoltaic power generation unit 3 shuts down, aeration unit 2 stops operating, and each compartment 16 becomes an anaerobic environment. Anaerobic microorganisms then decompose organic matter in the water into methane and other substances. This alternation between aerobic and anaerobic environments cultivates facultative bacteria adapted to these environments, exhibiting characteristics of both aerobic and anaerobic bacteria. This enhances the microbial treatment capacity and ensures effective wastewater treatment.

[0037] In a preferred embodiment, such as Figure 1 and Figure 2As shown, the input end of the inlet lift pump 14 is connected to the collection tank 19. Sewage is collected in the collection tank 19, lifted by the inlet lift pump 14, and then injected into the sewage treatment tank 11 through the inlet 12 for treatment.

[0038] In a preferred embodiment, such as Figure 1 and Figure 2 As shown, the top of the sewage treatment tank 11 is connected to an exhaust pipe 110 to release the gas generated during the reaction in a timely manner, preventing it from accumulating inside the equipment and causing an accident; the exhaust pipe 110 is connected to a gas storage tank 111 to collect the exhaust gas, and the combustible gas in it can be recycled.

[0039] In a preferred embodiment, such as Figure 1 As shown, both the bottom of compartment 16 and sedimentation chamber 17 are connected to vent pipes 112, and each vent pipe 112 is equipped with a vent valve 113. The sludge settled in sedimentation chamber 17 is periodically discharged through vent pipe 112; during fault maintenance, the water in compartment 16 and sedimentation chamber 17 is discharged through vent pipe 112 for maintenance.

[0040] In a preferred embodiment, such as Figure 1 and Figure 2 As shown, the aeration unit 2 includes a blower 21 and aeration heads 22. Several aeration heads 22 are provided at the bottom of each compartment 16, and each aeration head 22 is connected to the output end of the blower 21 through an aeration pipe 23.

[0041] In this embodiment, the bottom of the compartment 16 is provided with aeration pipes 23 and aeration heads 22. The photovoltaic power generation unit 3 generates electricity to drive the blower 21 to operate, and delivers air through the aeration pipes 23 to the aeration heads 22. The small apertures on the aeration heads 22 release oxygen into the water, providing conditions for the growth of aerobic microorganisms.

[0042] In a preferred embodiment, the inlet lift pump 14 and the blower 21 are respectively connected to a conventional power supply. Considering that the photovoltaic power generation unit 3 cannot generate electricity during long-term rainy weather, the inlet lift pump 14 cannot operate normally, which may cause the collection tank 19 to overflow. Therefore, a conventional power supply is designed to supply power to the inlet lift pump 14 during rainy weather to ensure the reliability of the sewage treatment system.

[0043] In the description of this specification, the terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0044] In the description of this specification, the terms "one embodiment," "some embodiments," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0045] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A photovoltaic-powered modified ABR wastewater treatment system, characterized in that, It includes an ABR wastewater treatment unit (1), an aeration unit (2), and a photovoltaic power generation unit (3); The ABR wastewater treatment unit (1) includes a wastewater treatment tank (11). One end of the wastewater treatment tank (11) is provided with an inlet (12) and the other end is provided with an outlet (13). The inlet (12) is connected to an inlet booster pump (14). The wastewater treatment tank (11) is divided into several compartments (16) and a sedimentation chamber (17) in the direction from the inlet (12) to the outlet (13) by a baffle plate (15). Each compartment (16) is filled with elastic three-dimensional packing material (18). The aeration unit (2) is connected to each of the compartments (16); The photovoltaic power generation unit (3) includes several solar photovoltaic panels and a photovoltaic controller. The water inlet pump (14) and the aeration unit (2) are both electrically connected to the photovoltaic power generation unit (3).

2. The photovoltaic-powered modified ABR wastewater treatment system according to claim 1, characterized in that, The input end of the water inlet booster pump (14) is connected to the water collection tank (19).

3. The photovoltaic-powered improved ABR wastewater treatment system according to claim 1, characterized in that, The top of the sewage treatment tank (11) is connected to an exhaust pipe (110), which is connected to an air storage tank (111).

4. The photovoltaic power generation-modified ABR wastewater treatment system according to claim 1, characterized in that, The bottom of both the compartment (16) and the sedimentation chamber (17) is connected to a vent pipe (112), and a vent valve (113) is provided on each of the vent pipes (112).

5. The photovoltaic-powered improved ABR wastewater treatment system according to claim 1, characterized in that, The aeration unit (2) includes a blower (21) and aeration heads (22). Each of the compartments (16) has a number of aeration heads (22) at its bottom. Each aeration head (22) is connected to the output end of the blower (21) through an aeration pipe (23).

6. The photovoltaic-powered improved ABR wastewater treatment system according to claim 5, characterized in that, The water inlet booster pump (14) and the blower (21) are respectively connected to a conventional power source.

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