Anaerobic preposed integrated constructed wetland

Abstract

The utility model belongs to the technical field of sewage treatment, and discloses an anaerobic preposed integrated artificial wetland which comprises a tank body, a cover plate is arranged at the top of the tank body, a first partition plate and a second partition plate are sequentially arranged in the tank body from left to right, and the top of the first partition plate and the top of the second partition plate are tightly attached to the bottom of the cover plate. The tank body is sequentially divided into anaerobic tank sections from left to right by virtue of the first partition plate and the second partition plate, and through the integrated tank body, the tank body is divided into the anaerobic tank sections, the constructed wetland section and the water outlet tank section, so that the water quality of rural domestic sewage can reach the standard, and particularly, the removal effect on nitrogen and phosphorus is stable; the constructed wetland is small in occupied area, simple in construction process, low in construction cost, long in service life and suitable for distributed single-household or multi-household domestic sewage treatment in rural areas, and a water distribution pipe and a water collection pipe are not installed; the solar panel and the control box are matched with the backwater utilization device, so that the rural sewage can be conveniently recycled by using clean energy.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to an anaerobic front-end integrated artificial wetland. Background Art

[0002] The organic load of traditional artificial wetland treatment technology is too high, and it is generally not able to meet the sewage quality standards when used alone to treat rural domestic sewage. Anaerobic biological technology alone is generally also unable to meet the sewage quality standards, especially for the removal of nitrogen and phosphorus.

[0003] The traditional multi-unit "anaerobic + artificial wetland" technology has disadvantages such as a large number of pool installations, large floor space, complex pipeline installation, complex construction procedures, high construction costs, and short service life. It is difficult to apply it to decentralized domestic sewage treatment technology in rural areas.

[0004] Traditional artificial wetland technology often only focuses on whether the sewage quality meets the standards, but ignores the importance of rural sewage reuse. Even if the relevant reuse functions are partially considered, the convenience and energy-saving effects of sewage reuse are not taken into consideration. Utility Model Content

[0005] The purpose of the utility model is to provide an integrated artificial wetland with anaerobic front-end. Aiming at the defects of existing artificial wetlands for rural households, the utility model firstly adopts an integrated manufacturing process to integrate the anaerobic tank, artificial wetland and water outlet tank into a single device, while reducing the floor space, realizes the design without water distribution pipes and water collection pipes through reasonable arrangement of water inlet and outlet holes, simplifies the construction process and prolongs the service life; secondly, the water pump in the water outlet tank is powered by solar energy, so as to realize the function of low-energy reuse of domestic sewage after it is treated to meet the standards.

[0006] The utility model is achieved in this way:

[0007] An anaerobic front integrated artificial wetland comprises a tank body, a cover plate is arranged on the top of the tank body, a first partition plate and a second partition plate are arranged in sequence from left to right inside the tank body, the tops of the first partition plate and the second partition plate are both closely attached to the bottom of the cover plate, the tank body is divided into an anaerobic tank section, an artificial wetland section and an outlet tank section in sequence from left to right by the first partition plate and the second partition plate, a water inlet pipe is arranged on the top of the left side of the anaerobic tank section, the outlet end of the water inlet pipe extends below the liquid surface, a water inlet distribution pipe is arranged on the upper part of the first partition plate, the anaerobic tank section is connected with the artificial wetland section through the water inlet distribution pipe, a water outlet distribution hole is arranged on the bottom of the second partition plate, the artificial wetland section is connected with the outlet tank section through the water outlet distribution hole, a water outlet pipe is arranged on the top of the right side of the outlet tank section, the water outlet pipe is above the liquid surface, a return water utilization device is arranged in the outlet tank section, and the return water utilization device is controlled by a power supply control device;

[0008] The water recycling device comprises a water recycling pump, which is fixedly installed on the bottom of the water outlet pool section. The output end of the water recycling pump is connected to one end of a water recycling pipe, and the other end of the water recycling pipe extends into the vegetable garden.

[0009] In one embodiment of the utility model, the water inlet distribution pipe is a T-shaped structure rotated 90 degrees, with its top exceeding the liquid surface and its bottom extending below the liquid surface, and its middle portion is installed on the first partition and connected to the artificial wetland section.

[0010] In an embodiment of the utility model, the water inlet pipe and the water outlet pipe are both sealed and installed with the pool body through a water pipe sealing ring, and the water inlet distribution pipe is also sealed and installed with the first partition through the water pipe sealing ring.

[0011] In one embodiment of the utility model, the artificial wetland section is filled with a lower layer of filler and an upper layer of filler in sequence from bottom to top, and aquatic plants are planted in the upper layer of filler.

[0012] In one embodiment of the utility model, the upper filler is clean gravel with a particle size of 10 to 20 mm, the lower filler is clean gravel with a particle size of 20 to 60 mm, and the aquatic plants are emergent plants, with a spacing of 100 mm between each plant.

[0013] In one embodiment of the utility model, the top of the cover plate is respectively provided with an anaerobic inspection port, a hollow groove and a water outlet inspection port corresponding to the anaerobic tank section, the artificial wetland section and the outlet tank section, and the top of the anaerobic inspection port and the water outlet inspection port are both provided with inspection covers.

[0014] In an embodiment of the present utility model, a sealing gasket is provided between the cover plate and the pool body, and the cover plate is fastened to the pool body by bolts.

[0015] In an embodiment of the present invention, the first partition plate and the second partition plate are respectively provided with a first overflow hole and a second overflow hole near the top.

[0016] In one embodiment of the utility model, the power supply control device includes a solar panel and a control cabinet, the control cabinet is integrated with an energy storage battery, the energy storage battery is connected to the recycled water pump through an electric wire, the energy storage battery stores electricity through the solar panel, and the solar panel is placed in a sunny place.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model can make the rural domestic sewage meet the water quality standards by dividing the pool body into an anaerobic pool section, an artificial wetland section and an outlet pool section through an integrated arrangement of the pool body, especially the removal effect of nitrogen and phosphorus is stable; the artificial wetland occupies a small area, and there is no need to install water distribution pipes and water collection pipes, the construction process is simple, the construction cost is low, the service life is long, and the operation and maintenance are convenient, and it is suitable for decentralized single-household or multi-household domestic sewage treatment in rural areas; through the solar panels and the control box in conjunction with the return water utilization device, clean energy can be used to conveniently realize the reuse of rural sewage for farmland irrigation and other purposes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall planar structure of the utility model.

[0021] Explanation of the reference numerals: 1. tank body; 2. cover plate; 3. sealing gasket; 4. first partition plate; 5. second partition plate; 6. water inlet pipe; 7. water pipe sealing ring; 8. water inlet distribution pipe; 9. water outlet distribution hole; 10. water outlet pipe; 11. lower filler; 12. upper filler; 13. aquatic plants; 14. anaerobic tank section; 15. artificial wetland section; 16. water outlet tank section; 17. anaerobic inspection port; 18. water outlet inspection port; 19. first overflow hole; 20. second overflow hole; 21. recycled water pump; 22. recycled water pipe; 23. control cabinet; 24. solar panel. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] Example

[0028] Refer to the attached Figure 1As shown, the utility model provides an integrated artificial wetland with anaerobic front, including a tank body 1, a cover plate 2 is arranged on the top of the tank body 1, a first partition plate 4 and a second partition plate 5 are arranged in sequence from left to right inside the tank body 1, the tops of the first partition plate 4 and the second partition plate 5 are both closely attached to the bottom of the cover plate 2, the tank body 1 is divided into an anaerobic tank section 14, an artificial wetland section 15 and a water outlet tank section 16 from left to right by the first partition plate 4 and the second partition plate 5, the top of the left side of the anaerobic tank section 14 is provided with a water inlet pipe 6, and the water inlet pipe 6 is provided at the top of the left side of the anaerobic tank section 14. The outlet end of 6 extends below the liquid surface, an inlet distribution pipe 8 is provided on the upper part of the first partition 4, and the anaerobic tank section 14 is connected with the artificial wetland section 15 through the inlet distribution pipe 8. A water outlet distribution hole 9 is provided at the bottom of the second partition 5, and the artificial wetland section 15 is connected with the outlet tank section 16 through the outlet distribution hole 9. An outlet pipe 10 is provided on the top right side of the outlet tank section 16, and the outlet pipe 10 is above the liquid surface. A return water utilization device is provided in the outlet tank section 16, and the return water utilization device is controlled by a power supply control device;

[0029] The water recycling device includes a recycling water pump 21, which is fixedly installed at the bottom of the water outlet pool section 16. The output end of the recycling water pump 21 is connected to one end of a recycling water pipe 22, and the other end of the recycling water pipe 22 extends to the vegetable garden.

[0030] In an embodiment of the utility model, further, the water inlet pipe 6 and the water outlet pipe 10 are both sealed and installed with the pool body 1 through the water pipe sealing ring 7, and the water inlet distribution pipe 8 is also sealed and installed with the first partition plate 4 through the water pipe sealing ring 7.

[0031] In an embodiment of the present invention, further, the artificial wetland section 15 is filled with a lower filler 11 and an upper filler 12 in sequence from bottom to top, and aquatic plants 13 are planted in the upper filler 12 .

[0032] In an embodiment of the present invention, further, the upper filler 12 is clean gravel with a particle size of 10 to 20 mm, the lower filler 11 is clean gravel with a particle size of 20 to 60 mm, and the aquatic plants 13 are emergent plants, with a spacing of 100 mm between each plant.

[0033] In one embodiment of the utility model, further, the power supply control device includes a solar panel 24 and a control cabinet 23, the control cabinet 23 is integrated with an energy storage battery, the energy storage battery is connected to the recycled water pump 21 through wires, the energy storage battery stores electricity through the solar panel 24, and the solar panel 24 is placed in a sunny place.

[0034] Specifically, the artificial wetland consists of two parts: the first part is the sewage treatment part; the second part is the tail water reuse part;

[0035] The sewage treatment part is composed of three functional sections: an anaerobic tank section 14 , an artificial wetland section 15 , and an outlet tank section 16 .

[0036] Rural domestic sewage enters the anaerobic tank section 14 after being sealed by the water pipe sealing ring 7 from the water inlet pipe 6, preventing mud and rainwater outside the tank body 1 from entering the tank body 1, ensuring the stability of the water quality in the anaerobic tank section 14, and preventing mud and sand from clogging. The water inlet pipe 6 enters the anaerobic tank section 14 and penetrates below the liquid level of the anaerobic tank section 14 to prevent oxygen from being brought into the anaerobic tank due to the waterfall. The organic pollutants that are difficult to decompose in the sewage are degraded into easily decomposable small molecular pollutants under the action of anaerobic microorganisms in the anaerobic tank section 14, thereby improving the sewage treatment capacity of the next functional section;

[0037] An artificial wetland water inlet distribution pipe 8 is installed in the anaerobic tank section 14. The artificial wetland water inlet distribution pipe 8 is fixed on the first partition plate 4 in the middle of the tank body 1 through a water pipe sealing ring 7. The artificial wetland section 15 is composed of an upper filler 12, a lower filler 11, and aquatic plants 13. The upper filler 12 is clean gravel with a particle size of 10 to 20 mm, the lower filler 11 is clean gravel with a particle size of 20 to 60 mm, and the aquatic plants 13 are emergent plants with a plant spacing of 100 mm. The gravel and emergent plants can be reasonably selected according to local conditions and adapted to local conditions. After the pollutants in the sewage are adsorbed and degraded by the microorganisms attached to the filler and absorbed by the aquatic plants 13 in the artificial wetland section 15, they enter the outlet tank section 16 through the outlet water distribution hole 9 located at the bottom of the artificial wetland section 15;

[0038] An outlet pipe 10 is provided above the liquid level of the outlet pool section 16, and a reuse water pump 21 is provided at the bottom of the outlet pool section 16. When the tail water is not reused, the tail water that has been treated to meet the standards is directly discharged into the surrounding ditches through the outlet pipe 10; when the tail water is reused, by turning on the power switch in the control box, the energy storage battery integrated in the control box controls the tail water reuse pump to be powered on and started through the power line, and the tail water in the outlet pool section 16 is pumped to the vegetable fields around the farmers by the reuse water pipe 22, completing the resource utilization of the tail water. The solar panels 24 are arranged in sunny places such as roofs, side walls, and open spaces. The solar panels 24 generate electricity to charge the energy storage batteries.

[0039] In one embodiment of the utility model, further, the water inlet distribution pipe 8 is a T-shaped structure rotated ninety degrees, with its top exceeding the liquid surface and its bottom extending below the liquid surface, and its middle part is installed on the first partition plate 4 and connected to the artificial wetland section 15.

[0040] Specifically, the water inlet distribution pipe 8 is arranged in a T-shape rotated 90 degrees, with the lower end immersed in the liquid level of the anaerobic tank section 14, the upper end exceeding the top of the liquid surface of the anaerobic tank section 14, and the right end passing through the first partition 4 and extending into the artificial wetland filler. The T-shaped arrangement rotated 90 degrees can effectively prevent the scum and solid sediment in the anaerobic tank section 14 from entering the artificial wetland section 15, thereby effectively extending the overall service life of the artificial wetland section 15.

[0041] In one embodiment of the utility model, further, an anaerobic inspection port 17, a hollow groove and a water outlet inspection port 18 are respectively provided on the top of the cover plate 2 corresponding to the anaerobic tank section 14, the artificial wetland section 15 and the water outlet tank section 16, and the tops of the anaerobic inspection port 17 and the water outlet inspection port 18 are both provided with inspection covers.

[0042] In an embodiment of the present invention, further, a sealing gasket 3 is provided between the cover plate 2 and the cell body 1, and the cover plate 2 is fastened to the cell body 1 by bolts.

[0043] In an embodiment of the present invention, further, the first partition plate 4 and the second partition plate 5 are respectively provided with a first overflow hole 19 and a second overflow hole 20 near the top.

[0044] Specifically, when the filler in the artificial wetland is clogged, the sewage is temporarily discharged across the artificial wetland through the first overflow hole 19 of the anaerobic tank section 14 and the second overflow hole 20 of the outlet tank section 16. By observing the color of the water on the surface of the artificial wetland and the changes in the water level through the hollow groove, it can be determined whether the filler in the artificial wetland is clogged, thereby determining whether it needs to be cleaned.

[0045] When the anaerobic tank section 14 needs to check the water quality or clean the scum, it can be done by opening the inspection cover of the anaerobic inspection port 17 of the anaerobic tank section 14; when the effluent tank section 16 needs to check the water quality or clean the scum, it can be done by opening the outlet inspection port 18 of the effluent tank section 16; when the anaerobic tank section 14 or the effluent tank section 16 needs to perform pipeline maintenance or complete cleaning, the cover plate 2 of the tank body 1 can be completely opened by removing the sealing bolts and the sealing gasket 3 between the tank body 1 and the cover plate 2.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An anaerobic front integrated artificial wetland, comprising a pool body (1), wherein a cover plate (2) is arranged on the top of the pool body (1), characterized in that: The interior of the tank body (1) is provided with a first baffle (4) and a second baffle (5) in sequence from left to right. The tops of the first baffle (4) and the second baffle (5) are both closely attached to the bottom of the cover plate (2). The tank body (1) is divided into an anaerobic tank section (14), an artificial wetland section (15) and an outlet tank section (16) in sequence from left to right by the first baffle (4) and the second baffle (5). A water inlet pipe (6) is provided at the top of the left side of the anaerobic tank section (14). The outlet end of the water inlet pipe (6) extends below the liquid surface. The upper part of the first baffle (4) is provided with a There is a water inlet distribution pipe (8), the anaerobic tank section (14) is connected to the artificial wetland section (15) through the water inlet distribution pipe (8), the bottom of the second partition (5) is provided with a water outlet distribution hole (9), the artificial wetland section (15) is connected to the outlet pool section (16) through the water outlet distribution hole (9), the right top of the outlet pool section (16) is provided with a water outlet pipe (10), the water outlet pipe (10) is above the liquid level, and the outlet pool section (16) is provided with a return water utilization device, and the return water utilization device is controlled by a power supply control device; The water recycling device comprises a water recycling pump (21), the water recycling pump (21) is fixedly installed on the bottom of the water outlet pool section (16), the output end of the water recycling pump (21) is connected to one end of a water recycling pipe (22), and the other end of the water recycling pipe (22) extends into the vegetable garden.

2. The anaerobic pre-integrated artificial wetland according to claim 1, characterized in that: The water inlet distribution pipe (8) is a T-shaped structure rotated 90 degrees, with its top extending above the liquid surface and its bottom extending below the liquid surface. Its middle is installed on the first partition plate (4) and is connected to the artificial wetland section (15).

3. The anaerobic pre-integrated artificial wetland according to claim 2, characterized in that: The water inlet pipe (6) and the water outlet pipe (10) are both sealed and installed with the pool body (1) through a water pipe sealing ring (7), and the water inlet distribution pipe (8) is also sealed and installed with the first partition plate (4) through the water pipe sealing ring (7).

4. The anaerobic pre-integrated artificial wetland according to claim 1, characterized in that: The artificial wetland section (15) is filled with a lower layer filler (11) and an upper layer filler (12) in sequence from bottom to top, and aquatic plants (13) are planted in the upper layer filler (12).

5. The anaerobic pre-integrated artificial wetland according to claim 4, characterized in that: The upper filler (12) is clean gravel with a particle size of 10 to 20 mm, the lower filler (11) is clean gravel with a particle size of 20 to 60 mm, and the aquatic plants (13) are emergent plants, with a spacing of 100 mm between each plant.

6. The anaerobic pre-integrated artificial wetland according to claim 1, characterized in that: The top of the cover plate (2) is respectively provided with an anaerobic inspection port (17), a hollow groove and a water outlet inspection port (18) corresponding to the anaerobic tank section (14), the artificial wetland section (15) and the water outlet tank section (16), and the top of the anaerobic inspection port (17) and the water outlet inspection port (18) are both provided with inspection covers.

7. The anaerobic pre-integrated artificial wetland according to claim 6, characterized in that: A sealing gasket (3) is provided between the cover plate (2) and the tank body (1), and the cover plate (2) is fastened to the tank body (1) by means of bolts.

8. The anaerobic pre-integrated artificial wetland according to claim 1, characterized in that: The first partition plate (4) and the second partition plate (5) are respectively provided with a first overflow hole (19) and a second overflow hole (20) near the top.

9. The anaerobic pre-integrated artificial wetland according to claim 1, characterized in that: The power supply control device comprises a solar panel (24) and a control cabinet (23). An energy storage battery is integrated in the control cabinet (23). The energy storage battery is connected to the recycled water pump (21) via an electric wire. The energy storage battery stores electricity through the solar panel (24). The solar panel (24) is placed in a sunny place.

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