Purification tank

Abstract

The invention discloses a purification tank, and relates to the technical field of water treatment. The top of a shell is detachably connected with a cover plate; the anaerobic tank is arranged in the shell, a water inlet is formed in the side wall of the anaerobic tank, and the water inlet penetrates through the shell and is communicated with the outside; the anoxic tank is arranged in the shell on one side of the anaerobic tank and is communicated with the anaerobic tank through a first overflow pipe; the aerobic tank is communicated with the anoxic tank through a second overflow pipe; the filter tank is communicated with the aerobic tank through a third overflow pipe; the clean water tank is communicated with the filter tank through a fourth overflow pipe, a water outlet is formed in the side wall of the filter tank, and the water outlet penetrates through the side wall of the shell and is communicated with the outside. By arranging the anaerobic tank, the anoxic tank, the aerobic tank, the sedimentation tank and the clean water tank, anaerobic, anoxic and aerobic treatment of sewage can be realized, and finally, the sewage can be settled and the clean water can be collected, so that the domestic sewage can be recycled.

Description

Technical Field

[0001] The present invention relates to the technical field of water treatment, and more particularly to a purification tank. Background Art

[0002] While the rural economy is developing rapidly and farmers' living standards have greatly improved, water pollution is a prominent problem. The indiscriminate discharge of untreated domestic sewage leads to poor water quality in ditches and ponds, impacting the living environment and threatening residents' health. It also pollutes drinking water sources.

[0003] Traditional sewage pipe network collection and terminal sewage treatment are no longer suitable for rural sewage treatment due to large investments and the difficulty in maintaining sewage pipe networks and terminals. Their maintenance requires a high level of professionalism, resulting in the existing sewage treatment terminals often being in a state of suspension.

[0004] Therefore, how to provide a purification tank that can effectively purify toilet sewage and domestic sewage and prevent water sources from being polluted is a problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0005] In view of this, the present invention provides a purification tank, which aims to solve the problems in the above-mentioned background technology, effectively purify toilet sewage and domestic sewage, and prevent water sources from being polluted.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A septic tank comprising:

[0008] a housing, wherein a cover plate is detachably connected to the top of the housing;

[0009] An anaerobic tank is provided in the housing, and a water inlet is provided on the side wall of the anaerobic tank, and the water inlet passes through the housing and communicates with the outside;

[0010] an anoxic tank, the anoxic tank being arranged in a housing on one side of the anaerobic tank and being connected to the anaerobic tank through a first overflow pipe;

[0011] an aerobic tank, the aerobic tank being arranged in a housing on one side of the anoxic tank and the anaerobic tank, and the aerobic tank being connected to the anoxic tank through a second overflow pipe;

[0012] A filter tank, the filter tank being arranged in a housing on a side of the aerobic tank away from the anoxic tank, and the filter tank being connected to the aerobic tank via a third overflow pipe;

[0013] The clean water tank is arranged in the shell of the aerobic tank away from the anoxic tank. The clean water tank is connected with the filter tank through a fourth overflow pipe. A water outlet is provided on the side wall of the filter tank. The water outlet passes through the side wall of the shell and is connected with the outside.

[0014] Furthermore, an anaerobic grid is provided on the inner wall of the bottom of the anaerobic tank, and the bottom of the anaerobic grid is filled with polymer bundle filler. A water inlet pipe is provided in the anaerobic tank, one end of the water inlet pipe is connected to the water inlet, and the other end of the water inlet pipe extends under the anaerobic grid.

[0015] Furthermore, a three-phase separator is provided above the anaerobic grid in the anaerobic tank.

[0016] Furthermore, an anoxic grid is provided on the bottom inner wall of the anoxic tank, and the bottom of the anoxic grid is filled with a polymer bundle filler. The first overflow pipe is provided in the anoxic tank, and the top end of the first overflow pipe is connected to the anaerobic tank, and the other end of the first overflow pipe extends into the anoxic tank below the anoxic grid.

[0017] Furthermore, a partition plate is provided in the aerobic pool, and the partition plate divides the aerobic pool into a left chamber and a right chamber. The right chamber is provided on the side of the anoxic pool, and the left chamber is provided on the side of the filter pool. A filler bracket is provided in the right chamber, and a plurality of filler brackets are provided. Polymer bundle fillers and polyurethane fillers are hung on the filler brackets. A water permeable hole is provided on the partition plate, and the left chamber and the right chamber are connected through the water permeable hole.

[0018] Furthermore, the second overflow pipe is arranged in the right cavity, the top of the second overflow pipe is connected to the anoxic pool, and the bottom end of the second overflow pipe is connected to the bottom of the anoxic pool.

[0019] Furthermore, an aeration plate is provided at the bottom of the left cavity, and the aeration plate is connected to an external aeration system through an aeration pipe.

[0020] Furthermore, a quartz sand tray is provided in the filter pool, the quartz sand tray is filled with quartz sand, the third overflow pipe is provided in the left cavity, the bottom of the third overflow pipe extends below the quartz sand tray in the filter pool, and the other end of the third overflow pipe is provided in the upper half of the left cavity.

[0021] Furthermore, the fourth overflow pipe is arranged in the clean water tank, the top of the fourth overflow pipe is connected to the filter tank, and the bottom of the fourth overflow pipe is connected to the clean water tank.

[0022] As can be seen from the above technical solution, compared with the prior art, the present invention provides a purification tank. By setting up an anaerobic tank, an anoxic tank, an aerobic tank, a sedimentation tank, and a clear water tank, it is possible to achieve anaerobic, anoxic, and aerobic treatment of sewage, and finally to precipitate the sewage and collect the clear water, thereby realizing the recycling and reuse of domestic sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0024] Figure 1 This is an external structural diagram of a purification tank provided by the present invention;

[0025] Figure 2 A diagram showing the relative positions of a purification tank and a housing provided by the present invention;

[0026] Figure 3 This is a diagram of the internal structure of a purification tank provided by the present invention.

[0027] Among them: 1 is the shell; 2 is the cover plate; 3 is the anaerobic tank; 4 is the water inlet; 5 is the anoxic tank; 6 is the first overflow pipe; 7 is the aerobic tank; 8 is the second overflow pipe; 9 is the filter tank; 10 is the third overflow pipe; 11 is the clean water tank; 12 is the fourth overflow pipe; 13 is the water outlet; 14 is the anaerobic grid; 15 is the water inlet pipe; 16 is the three-phase separator; 17 is the anoxic grid; 18 is the partition plate; 19 is the filler bracket; 20 is the water permeable hole; 21 is the aeration disk; 22 is the quartz sand tray. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figure 1-3 , an embodiment of the present invention discloses a purification tank, comprising:

[0030] The shell 1 has a cover plate 2 detachably connected to the top of the shell 1. In this embodiment, the shell 1 is made of HDPP environmentally friendly material, which is pollution-free, has stable performance, a service life of up to 30 years, and can be recycled and reused. Two observation holes are provided on the cover plate 2, and the observation holes are also provided with threaded covers, which are connected to the observation holes by threads.

[0031] The anaerobic tank 3 is arranged in the shell 1, and a water inlet 4 is provided on the side wall of the anaerobic tank 3. The water inlet 4 passes through the shell 1 and is connected to the outside. In this embodiment, the anaerobic tank 3 utilizes the action of anaerobic bacteria to hydrolyze, acidify and methanize organic matter, remove organic matter in the wastewater, and improve the biodegradability of the sewage, which is beneficial to subsequent aerobic treatment. The water inlet 4 is arranged in the upper half of the outer wall of the anaerobic tank 3, and the sewage first enters the anaerobic tank 3 from the outside.

[0032] Anoxic tank 5 is located within the housing 1 on one side of the anaerobic tank 3 and is connected to the anaerobic tank 3 via a first overflow pipe 6. In this embodiment, the wastewater in the anoxic tank 5 decomposes organic matter in the sewage under anoxic conditions through the metabolic activity of microorganisms. This process primarily involves the adsorption and decomposition of organic matter by microorganisms, converting large organic molecules into small molecules, further achieving organic matter removal. Microorganisms within the anoxic tank 5 generate energy when degrading organic matter, which is used to sustain microbial growth and reproduction. The provision of the anoxic tank 5 helps improve the purification efficiency of the entire sewage treatment system. During the sewage treatment process, the anoxic tank 5 can serve as a pretreatment stage, providing more favorable conditions for the subsequent aerobic treatment process. Organic matter decomposed under anoxic conditions is further oxidized and decomposed under aerobic conditions, thereby improving the degree of sewage purification. Furthermore, the anoxic tank 5 helps remove pollutants such as nitrogen and phosphorus from the sewage. These pollutants are converted into harmless substances by microorganisms under anoxic conditions.

[0033] Aerobic tank 7, aerobic tank 7 is arranged in the shell 1 on one side of the anoxic tank 5 and the anaerobic tank 3, and the aerobic tank 7 is connected to the anoxic tank 5 through the second overflow pipe 8; in this embodiment, the wastewater is aerobically treated in the aerobic tank 7, relying on the biochemical action of aerobic bacteria and facultative anaerobic bacteria to complete the treatment process.

[0034] The filter tank 9 is arranged in the shell 1 on the side of the aerobic tank 7 away from the anoxic tank 5. The filter tank 9 is connected to the aerobic tank 7 through the third overflow pipe 10. In this embodiment, the filter tank 9 is used to precipitate and filter particulate impurities in the sewage, and the filtered clean water enters the clean water tank 11.

[0035] The clear water tank 11 is arranged in the shell 1 on the side of the aerobic tank 7 away from the anoxic tank 5. The clear water tank 11 is connected to the filter tank 9 through the fourth overflow pipe 12. A water outlet 13 is provided on the side wall of the filter tank 9. The water outlet 13 passes through the side wall of the shell 1 and is connected to the outside; in this embodiment, the clear water tank 11 can store and reuse clear water, and a water pump can be placed in the clear water tank 11 to reuse the purified clear water.

[0036] An anaerobic grid 14 is provided on the inner wall of the bottom of the anaerobic tank 3, and the bottom of the anaerobic grid 14 is filled with a polymer bundle filler. A water inlet pipe 15 is provided in the anaerobic tank 3, one end of the water inlet pipe 15 is connected to the water inlet 4, and the other end of the water inlet pipe 15 extends below the anaerobic grid 14; in this embodiment, the anaerobic grid 14 is used to constrain the polymer bundle filler at the bottom of the anaerobic tank 3, and the water inlet pipe 15 extends into the polymer bundle filler. The water entering the anaerobic tank 3 first enters the polymer bundle filler for purification, and then moves upward to enter the first overflow pipe 6 and overflow into the anoxic tank 5.

[0037] A three-phase separator 16 is provided above the anaerobic grid 14 in the anaerobic tank 3; in this embodiment, by providing the three-phase separator 16, the oil, gas and water phases in the wastewater can be separated and their output can be accurately measured. The three-phase separator 16 is provided below the first overflow pipe 6.

[0038] An anoxic grid 17 is provided on the inner wall of the bottom of the anoxic tank 5, and the bottom of the anoxic grid 17 is filled with a polymer bundle filler. The first overflow pipe 6 is provided in the anoxic tank 5, and the top of the first overflow pipe 6 is connected to the anaerobic tank 3, and the other end of the first overflow pipe 6 extends into the anoxic tank 5 below the anoxic grid 17; in this embodiment, the bottom of the anoxic grid 17 is filled with a polymer bundle filler, and the water flowing out of the first overflow pipe 6 first contacts the polymer bundle filler, and then the wastewater passes through the anoxic grid 17 and enters the second overflow pipe 8.

[0039] A partition plate 18 is provided in the aerobic pool 7, which divides the aerobic pool 7 into a left chamber and a right chamber. The right chamber is provided on the side of the anoxic pool 5, and the left chamber is provided on the side of the filter pool 9. A filler bracket 19 is provided in the right chamber. There are multiple filler brackets 19, and polymer bundle fillers and polyurethane fillers are hung on the filler brackets 19. A water permeable hole 20 is provided on the upper rod of the partition plate 18, and the left chamber and the right chamber are connected through the water permeable hole 20; in this embodiment, the filler bracket 19 is used to support the hanging of the polymer bundle filler, which can re-process the wastewater. The treated wastewater enters the left chamber through the water permeable hole 20 on the partition plate 18. By setting the partition plate 18, the functional areas can be separated, thereby preventing the water flow phenomenon caused by gravity problems.

[0040] The second overflow pipe 8 is arranged in the right cavity, the top of the second overflow pipe 8 is connected to the anoxic pool 5, and the bottom end of the second overflow pipe 8 is connected to the bottom of the anoxic pool 5; in this embodiment, the top of the second overflow pipe 8 is connected to the upper half of the anoxic pool 5, and the bottom of the second overflow pipe 8 is located in the lower half of the right cavity, and the water in the second overflow pipe 8 is first transported toward the bottom of the right cavity.

[0041] An aeration plate 21 is installed at the bottom of the left chamber, connected to an external aeration system via an aeration pipe. In this embodiment, the aeration plate 21 forces oxygen from the air into the liquid, ensuring sufficient dissolved oxygen in the wastewater. It also allows suspended matter in the left chamber to sink, enhancing contact between organic matter, microorganisms, and dissolved oxygen. This ensures that the microorganisms in the left chamber oxidize and decompose organic matter in the wastewater under sufficient dissolved oxygen conditions.

[0042] A quartz sand tray 22 is provided in the filter tank 9, and the quartz sand tray 22 is filled with quartz sand. The third overflow pipe 10 is provided in the left cavity, and the bottom of the third overflow pipe 10 extends into the bottom of the quartz sand tray 22 in the filter tank 9. The other end of the third overflow pipe 10 is provided in the upper half of the left cavity. In this embodiment, by providing the quartz sand tray 22, quartz sand can be placed on the quartz sand tray 22. The multi-layer pore structure of the quartz sand can effectively intercept suspended particles (such as sediment, rust) and colloidal substances in the sewage. According to the particle size The layered design can improve filtration accuracy; when sewage flows through the quartz sand layer, the biofilm or electrostatic adsorption formed on the surface can remove organic matter, heavy metals and some bacteria, while particle sedimentation further reduces turbidity; the corrosion and high temperature resistance of quartz sand makes it suitable for acidic and alkaline environments and high-temperature water treatment systems, and it is not easy to react with substances in the water, thereby extending the life of the filter media; sewage flows out from the bottom of the third overflow pipe 10 and flows to the bottom of the quartz sand tray 22, passes through the quartz sand, enters the fourth overflow pipe 12, and then flows into the clean water tank 11.

[0043] The fourth overflow pipe 12 is arranged in the clean water tank 11, the top of the fourth overflow pipe 12 is connected to the filter tank 9, and the bottom of the fourth overflow pipe 12 is connected to the clean water tank 11; in this embodiment, a quartz sand tray 22 is provided in the clean water tank 11 for placing quartz sand, and the bottom water outlet of the fourth overflow pipe 12 is located below the quartz sand tray 22, which can purify the sewage again.

[0044] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Reference can be made to the common and similar parts between the various embodiments. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the method description.

[0045] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A septic tank, characterized in that: include: a housing, wherein a cover plate is detachably connected to the top of the housing; An anaerobic tank is provided in the housing, and a water inlet is provided on the side wall of the anaerobic tank, and the water inlet passes through the housing and communicates with the outside; an anoxic tank, the anoxic tank being arranged in a housing on one side of the anaerobic tank and being connected to the anaerobic tank through a first overflow pipe; an aerobic tank, the aerobic tank being arranged in a housing on one side of the anoxic tank and the anaerobic tank, and the aerobic tank being connected to the anoxic tank through a second overflow pipe; A filter tank, the filter tank being arranged in a housing on a side of the aerobic tank away from the anoxic tank, and the filter tank being connected to the aerobic tank via a third overflow pipe; The clean water tank is arranged in the shell of the aerobic tank away from the anoxic tank. The clean water tank is connected with the filter tank through a fourth overflow pipe. A water outlet is provided on the side wall of the filter tank. The water outlet passes through the side wall of the shell and is connected with the outside.

2. A purification tank according to claim 1, characterized in that: An anaerobic grid is provided on the inner wall of the bottom of the anaerobic tank, and the bottom of the anaerobic grid is filled with a polymer bundle filler. A water inlet pipe is provided in the anaerobic tank, one end of the water inlet pipe is connected to the water inlet, and the other end of the water inlet pipe extends under the anaerobic grid.

3. A purification tank according to claim 2, characterized in that: A three-phase separator is provided above the anaerobic grid in the anaerobic tank.

4. The purification tank according to claim 1, wherein: An anoxic grid is provided on the bottom inner wall of the anoxic tank, and the bottom of the anoxic grid is filled with a polymer bundle filler. The first overflow pipe is provided in the anoxic tank, the top end of the first overflow pipe is connected to the anaerobic tank, and the other end of the first overflow pipe extends into the anoxic tank below the anoxic grid.

5. The purification tank according to claim 1, characterized in that: A partition plate is provided in the aerobic pool, and the partition plate divides the aerobic pool into a left chamber and a right chamber. The right chamber is provided on the side of the anoxic pool, and the left chamber is provided on the side of the filtration pool. A filler bracket is provided in the right chamber, and a plurality of filler brackets are provided. Polymer bundle fillers and polyurethane fillers are hung on the filler brackets. A water permeable hole is provided on the partition plate, and the left chamber and the right chamber are connected through the water permeable hole.

6. A purification tank according to claim 5, characterized in that: The second overflow pipe is arranged in the right cavity, the top of the second overflow pipe is communicated with the anoxic pool, and the bottom end of the second overflow pipe is communicated with the bottom of the anoxic pool.

7. The purification tank according to claim 5, characterized in that: An aeration plate is provided at the bottom of the left cavity, and the aeration plate is connected to an external aeration system through an aeration pipe.

8. The purification tank according to claim 5, characterized in that: A quartz sand tray is provided in the filter pool, the quartz sand tray is filled with quartz sand, the third overflow pipe is provided in the left cavity, the bottom of the third overflow pipe extends below the quartz sand tray in the filter pool, and the other end of the third overflow pipe is provided in the upper half of the left cavity.

9. The purification tank according to claim 1, characterized in that: The fourth overflow pipe is arranged in the clean water tank, the top of the fourth overflow pipe is communicated with the filter tank, and the bottom of the fourth overflow pipe is communicated with the clean water tank.

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