Sewage treatment device

Abstract

The utility model discloses a sewage treatment device which comprises a homogenizing tank, one side of the homogenizing tank is connected with a monitoring room through a first conveying pipe, the homogenizing tank is connected with a biological fluidization tank through a second conveying pipe, one side of an anaerobic digestion tank is connected with an ozone tank through a pipeline, and one side of the ozone tank is connected with a biological aerated filter through a pipeline. A plurality of aerators are arranged in the biological aerated filter, stirring blades and a motor are arranged in the homogenizing tank, and different kinds of sewage from the septic tank effluent collecting tank, the domestic sewage inlet and the production wastewater inlet can be fully mixed through stirring, so that the quality and the quantity of the sewage entering a subsequent treatment unit are more uniform; according to the sewage treatment system disclosed by the invention, by adopting a mode of synergism of multiple treatment processes, the anaerobic digester can decompose macromolecular organic matters into micromolecules by utilizing anaerobic bacteria, and multiple processes are combined, so that various pollutants such as organic matters, heavy metals and toxic and harmful substances in sewage are more thoroughly removed, and strict environment-friendly emission standards can be better met.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment technology, and specifically relates to a wastewater treatment device. Background Technology

[0002] In today's society, with the acceleration of industrialization and the continuous growth of population, the amount of sewage generated is increasing day by day. Sewage treatment has become a key link in the field of environmental protection. The development of sewage treatment technology is of great significance for the sustainable use of water resources, the protection of the ecological environment and the protection of human health. Therefore, it is necessary to treat the discharged sewage.

[0003] Existing and common wastewater treatment methods include physical, chemical, and biological methods. These methods purify wastewater to varying degrees. However, when wastewater treatment plants treat wastewater from multiple sources, fluctuations in water quality and quantity can significantly impact the treatment effect. For example, the composition of domestic sewage and industrial wastewater differs greatly. Domestic sewage contains a large amount of organic matter, nitrogen, phosphorus, and other nutrients, while the composition of industrial wastewater is complex and diverse due to different production processes, and may contain heavy metals, toxic and harmful substances, etc. When these wastewaters from different sources are mixed and enter the treatment plant, if there is a lack of effective homogenization and conditioning measures, the subsequent treatment units will be difficult to operate stably, and the treatment effect will be greatly reduced, thus affecting the overall wastewater treatment efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a wastewater treatment device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wastewater treatment device, comprising:

[0006] The system includes a homogenizing tank, a monitoring room connected to one side via a first conveying pipe, a biological fluidized bed connected to the homogenizing tank via a second conveying pipe, a backwashing tank connected to one side of the biological fluidized bed via a pipe, an anaerobic digester connected to one side of the backwashing tank via a pipe, an ozone tank connected to one side of the anaerobic digester via a pipe, an aerated biological filter connected to one side of the ozone tank via a pipe, several aerators within the aerated biological filter, and a collection tank connected to the bottom of the aerated biological filter via a pipe.

[0007] Preferably, an ozone catalytic oxidizer is provided between the anaerobic digester and the ozone tank, and both the anaerobic digester and the ozone tank are connected to the ozone catalytic oxidizer through pipelines and water pumps are provided on the pipelines.

[0008] Preferably, the collection pool includes a recycled water pool, and a monitoring pool is connected to one side of the recycled water pool via a pipe, and a water pump is also installed on the pipe.

[0009] Preferably, the monitoring pool is provided with a landscape water interface on one side, and the bottom of the monitoring pool is connected to a water recycling interface and a wastewater pipe, with the other end of the wastewater pipe connected to the homogenization pool.

[0010] Preferably, the bottom of the backwash tank is connected to a backwash collection tank via a pipe.

[0011] Preferably, both the first and second conveying pipes are equipped with sewage pumps, and both the first and second conveying pipes, the pipelines, and the wastewater pipes are equipped with control valves.

[0012] Preferably, the homogenizing tank is rotatably connected to a stirring blade via a bearing, and a motor is provided at the top of the homogenizing tank, with the output shaft of the motor connected to the stirring blade.

[0013] Preferably, a septic tank effluent collection tank is provided on one side of the homogenizing tank, and a domestic sewage inlet and a production wastewater inlet are provided on the homogenizing tank.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] (1) The device is equipped with a homogenization tank, which is equipped with stirring blades and a motor. Through stirring, different sewage from the septic tank effluent collection tank, domestic sewage inlet and industrial wastewater inlet can be fully mixed, so that the sewage quality and quantity entering the subsequent treatment unit are more uniform. By adopting a combination of multiple treatment processes, the anaerobic digester can use anaerobic bacteria to decompose large organic molecules into small molecules; the ozone tank is combined with the ozone catalytic oxidizer, and ozone can efficiently oxidize and decompose recalcitrant organic matter under the action of the catalyst; the aerator in the aerated biological filter provides sufficient oxygen, so that microorganisms can further degrade organic matter and pollutants such as ammonia nitrogen in an aerobic environment. The combination of multiple processes can remove various pollutants such as organic matter, heavy metals and toxic and harmful substances in sewage more thoroughly and better meet the strict environmental emission standards.

[0016] (2) A water recycling pool and a monitoring pool are provided. After the treated water meets the standards after being tested by the monitoring pool, it can be used for landscape irrigation through the landscape water interface, or reused in other suitable production processes through the effluent reuse interface to improve water resource utilization and reduce water waste. At the same time, if the monitoring pool fails to meet the standards, the sewage can be returned to the equalization pool through the wastewater pipe for reprocessing to ensure that the effluent water quality is stable and meets the standards.

[0017] (3) The bottom of the backwash tank is connected to the backwash collection tank. When the treatment unit such as the biological fluidized bed needs backwashing, the wastewater generated by backwashing can be collected in the backwash collection tank for centralized treatment and management. Attached Figure Description

[0018] Figure 1 This is a process flow diagram of the present invention.

[0019] In the diagram: 1. Homogenization tank; 2. Monitoring room; 3. Biological fluidized bed; 4. Backwash tank; 5. Anaerobic digester; 6. Ozone tank; 7. Aerated biological filter; 8. Aerator; 9. Ozone catalytic oxidizer; 10. Water pump; 11. Reclaimed water tank; 12. Monitoring tank; 13. Landscape water interface; 14. Effluent reuse interface; 15. Wastewater pipe; 16. Backwash collection tank; 17. First conveying pipe; 18. Second conveying pipe; 19. Sewage pump; 20. Control valve; 21. Septic tank effluent collection tank; 22. Domestic sewage inlet; 23. Industrial wastewater inlet; 24. Agitator blades; 25. Motor. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] This utility model provides, for example Figure 1 A wastewater treatment device is shown, comprising:

[0022] The homogenization tank 1 is connected to a monitoring room 2 via a first conveying pipe 17 on one side. The homogenization tank 1 is connected to a biological fluidized tank 3 via a second conveying pipe 18. A backwash tank 4 is connected to a backwash tank 4 via a pipe on one side. An anaerobic digester 5 is connected to an anaerobic digester 5 via a pipe on one side. An ozone tank 6 is connected to an ozone tank 6 via a pipe on one side. An aerated biological filter 7 is connected to an aerated biological filter 7 via a number of aerators 8. A collection tank is connected to the bottom of the aerated biological filter 7 via a pipe.

[0023] An ozone catalytic oxidizer 9 is provided between the anaerobic digester 5 and the ozone tank 6. Both the anaerobic digester 5 and the ozone tank 6 are connected to the ozone catalytic oxidizer 9 through pipes, and a water pump 10 is provided on the pipes.

[0024] The collection pool includes a recycled water pool 11, and a monitoring pool 12 is connected to one side of the recycled water pool 11 via a pipe, and a water pump 10 is also installed on the pipe.

[0025] The monitoring pool 12 is provided with a landscape water interface 13 on one side. The bottom of the monitoring pool 12 is connected to a water recycling interface 14 and a wastewater pipe 15, and the other end of the wastewater pipe 15 is connected to the homogenization pool 1. If the treated wastewater fails to meet the test standards, it will be returned to the homogenization pool 1 through the wastewater pipe 15 for re-treatment until the water quality meets the relevant standards.

[0026] The backwash tank 4 is connected to a backwash collection tank 16 via a pipe at its bottom. During the backwashing process, the backwash tank 4 discharges a large amount of water containing impurities but still having some usability. This water flows into the backwash collection tank 16 for centralized collection.

[0027] Both the first conveying pipe 17 and the second conveying pipe 18 are equipped with sewage pumps 19, and both the first conveying pipe 17, the second conveying pipe 18, the pipeline, and the wastewater pipe 15 are equipped with control valves 20.

[0028] The homogenizing tank 1 is rotatably connected to the stirring blades 24 via bearings. The top of the homogenizing tank 1 is equipped with a motor 25, and the output shaft of the motor 25 is connected to the stirring blades 24. The output shaft of the motor 25 can drive the stirring blades 24 to rotate, so as to fully stir and mix the sewage from different sources, so as to homogenize the sewage quality and quantity and reduce the impact on subsequent treatment units.

[0029] The homogenizing tank 1 is provided with a septic tank effluent collection tank 21 on one side. The homogenizing tank 1 is provided with a domestic sewage inlet 22 and a production wastewater inlet 23. Domestic sewage can flow into the homogenizing tank 1 from the domestic sewage inlet 22 and production wastewater can flow into the homogenizing tank 1 from the production wastewater inlet 23. The sewage in the septic tank effluent collection tank 21 also enters the homogenizing tank 1 for mixing.

[0030] In this wastewater treatment device, domestic sewage flows into the homogenization tank 1 from the domestic sewage inlet 22 and industrial wastewater flows into the homogenization tank 1 from the industrial wastewater inlet 23. Wastewater from the septic tank effluent collection tank 21 also enters the homogenization tank 1. At this time, the output shaft of the motor 25 can drive the stirring blades 24 to rotate, so as to fully stir and mix the wastewater from different sources, making the wastewater quality and quantity uniform, reducing the impact on subsequent treatment units. Part of the homogenized wastewater is transported to the monitoring room 2 through the first conveying pipe 17 for preliminary water quality testing and analysis, and the other part is transported to the biological fluidization tank 3 through the second conveying pipe 18.

[0031] Wastewater entering the biological fluidized bed 3 undergoes preliminary decomposition and transformation of organic matter in the wastewater by the microbial community in the fluidized state. The microorganisms are in full contact with the wastewater in the fluidized environment, which can efficiently adsorb and degrade organic matter and transform it into harmless substances. As the operating time increases, the filter media in the biological fluidized bed 3 may become clogged. At this time, the backwashing process is started, and the wastewater flows into the backwashing tank 4 for rinsing. The wastewater generated by backwashing flows into the backwashing collection tank 16.

[0032] After treatment in the biological fluidized bed 3, the wastewater flows from the backwashing tank 4 into the anaerobic digester 5. In the anaerobic environment, anaerobic microorganisms further decompose the large organic molecules in the wastewater into small organic acids, methane, and carbon dioxide. This process not only reduces the organic matter content of the wastewater but also generates usable biogas energy. The anaerobic digested wastewater is then pumped by the pump 10 to the ozone catalytic oxidizer 9. Under the combined action of ozone and catalyst, the recalcitrant organic matter is oxidized and decomposed. The treated wastewater then enters the ozone tank 6, where the strong oxidizing properties of ozone are used to remove the remaining pollutants. Afterward, the wastewater flows into the aerated biological filter 7, where the aerator 8 provides sufficient oxygen. Under aerobic conditions, aerobic microorganisms perform deep treatment on the wastewater, degrading residual organic matter, ammonia nitrogen, and other pollutants. At the same time, the filtration of the filter removes suspended solids and other impurities from the wastewater.

[0033] The water treated by the aerated biological filter 7 flows into the reuse water tank 11. The water in the reuse water tank 11 is pumped by the water pump 10 to the monitoring tank 12 for comprehensive water quality testing. If the test results meet the standards, the water can be used for landscaping through the landscape water interface 13 or reused in the production process through the effluent reuse interface 14. If the test results do not meet the standards, the water will be returned to the equalization tank 1 through the wastewater pipe 15 for re-treatment until the water quality meets the relevant standards.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wastewater treatment device, characterized in that, include: A homogenizing tank (1) is connected to a monitoring room (2) via a first conveying pipe (17) on one side. A stirring blade (24) is rotatably connected to the homogenizing tank (1) via a bearing. A motor (25) is provided at the top of the homogenizing tank (1) and the output shaft of the motor (25) is connected to the stirring blade (24). A biological fluidized tank (3) is connected to the homogenizing tank (1) via a second conveying pipe (18). A backwashing tank (4) is connected to one side of the biological fluidized tank (3) via a pipe. An anaerobic digestion tank (5) is connected to one side of the backwashing tank (4) via a pipe. An ozone tank (6) is connected to one side of the anaerobic digestion tank (5) via a pipe. An aerated biological filter (7) is connected to one side of the ozone tank (6) via a pipe. Several aerators (8) are located in the aerated biological filter (7). A collection tank is connected to the bottom of the aerated biological filter (7) via a pipe.

2. The wastewater treatment device according to claim 1, characterized in that: An ozone catalytic oxidizer (9) is provided between the anaerobic digester (5) and the ozone tank (6). Both the anaerobic digester (5) and the ozone tank (6) are connected to the ozone catalytic oxidizer (9) through pipes and a water pump (10) is provided on the pipes.

3. The wastewater treatment device according to claim 1, characterized in that: The collection pool includes a recycled water pool (11), and a monitoring pool (12) is connected to one side of the recycled water pool (11) via a pipe, and a water pump (10) is also installed on the pipe.

4. A wastewater treatment device according to claim 3, characterized in that: The monitoring pool (12) is provided with a landscape water interface (13) on one side. The bottom of the monitoring pool (12) is connected to a water recycling interface (14) and a wastewater pipe (15), and the other end of the wastewater pipe (15) is connected to the homogenization pool (1).

5. A wastewater treatment device according to claim 1, characterized in that: The backwash tank (4) is connected to a backwash collection tank (16) at the bottom via a pipe.

6. A wastewater treatment device according to claim 4, characterized in that: Both the first conveying pipe (17) and the second conveying pipe (18) are equipped with sewage pumps (19).

7. A wastewater treatment device according to claim 6, characterized in that: Control valves (20) are provided on the first conveying pipe (17), the second conveying pipe (18), the pipeline, and the wastewater pipe (15).

8. A wastewater treatment device according to claim 1, characterized in that: The homogenizing tank (1) is provided with a septic tank effluent collection tank (21) on one side, and the homogenizing tank (1) is provided with a domestic sewage inlet (22) and a production wastewater inlet (23).

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