CN116135801B - A rural ecological wetland purification treatment system - Google Patents

Abstract

The invention relates to a rural ecological wetland purification treatment system, which comprises a sedimentation tank, a filter tank, an annular packing area and an ecological purification pond arranged in sequence according to the direction of water flow, and each pool is connected to the area through water inlet and outlet pipes of different heights. The filter tank is arranged with a gravel layer, a ceramsite layer, a steel slag layer and a porous packing layer, which work together to realize the purification of sewage. The annular packing area and the ecological purification pond are provided with plants for absorbing nitrogen and phosphorus elements in sewage. In this application, multiple water inlets are set on the side wall of the sedimentation tank to adapt to different water intakes, and various water flow paths are formed to ensure the normal operation of the system; a primary battery device is added to strengthen the phosphorus removal of the wetland system by using primary battery technology At the same time, it can generate electricity, reduce the energy consumption of sewage treatment, and has a green and low-carbon effect; the wetland system has low manufacturing cost and a small footprint. It is equipped with plants and LED lights, and has a landscape effect.

Description

A rural ecological wetland purification treatment system

technical field

The invention relates to the technical field of environmental governance, in particular to a rural ecological wetland purification treatment system.

Background technique

In the rural areas of our country, the use of ecological wetlands for sewage purification is a new measure that has been explored and introduced. Specifically, it refers to putting sewage and sludge in an orderly manner on the ground that is similar to swamps that are artificially constructed and operated under control, using soil, The physical, chemical and biological effects of artificial media, plants, microorganisms, etc., to treat sewage and sludge. This technology consumes less energy and has good effects, and the constructed wetland can also be used as a corresponding natural landscape, which has a certain appreciation value.

However, because the amount of sewage generated by rural life is generally small, and the rural residents live in scattered places and use less water, the amount of sewage discharge is also small, and the amount of sewage produced by villagers is different in the morning and evening due to their daily routine. When it is less, it may cause cut-off, that is, the discharge of sewage is discontinuous and has the characteristics of large changes. The existing ecological wetland management system is difficult to adapt to a variety of sewage discharges; the domestic sewage in rural areas is basically It does not contain metal substances and toxic substances, but contains phosphorus, the water quality fluctuates greatly, and the biodegradability is strong. The existing ecological wetland management system has insufficient phosphorus removal capacity.

That is to say, in the existing technology, the use of ecological wetlands in rural areas for purification treatment at this stage needs to consider factors such as cost, and the current ecological wetland system is difficult to adapt to the amount of sewage discharged at different amounts and at different times, and the removal of phosphorus in the water body is insufficient. , the current ecological wetland system has high cost, weak adaptability, and low phosphorus removal capacity.

Contents of the invention

The invention provides a rural ecological wetland purification treatment system, which is used to solve the problem of discontinuous discharge of sewage, large fluctuations in water quality of phosphorus-containing elements in water bodies, and large fluctuations in water quality due to scattered rural life, low water consumption, and different daily routines in the prior art. It is difficult to take into account the technical problems of the landscape while purifying.

To achieve the above object, the present invention proposes the following technical solutions:

A rural ecological wetland purification treatment system, including a sedimentation tank, a filter tank, an annular filling area and an ecological purification pond set in sequence;

The sedimentation tank includes an energy dissipation sill, a mud discharge port, a first mesh panel and an artificial ladder; the energy dissipation sill is fixed on the bottom of the sedimentation tank, and the mud discharge port is arranged on the wall of the sedimentation tank, The first screen plate is horizontally fixed in the sedimentation tank, and the artificial ladder is fixed on the wall of the sedimentation tank;

The filter pool is divided into the bottom layer of the pool, the middle layer of the pool and the upper layer of the pool by two horizontal partitions parallel to each other; the bottom layer of the pool and the middle layer of the pool are set as the first pool body, and the upper layer of the pool is set as the second pool body ;

The bottom layer of the pool includes a gravel layer, a ceramsite layer, and a steel slag layer arranged in the direction of water flow, and the gravel layer, the ceramsite layer, and the steel slag layer are arranged in parallel through vertical partitions and the water inlets of each layer are arranged in a staggered manner; The middle layer of the pool includes a porous packing layer, and the porous packing layer is provided with a water inlet interconnected with the middle layer of the pool and the upper layer of the pool; the second pool body is provided with a second screen plate and an aluminum A sludge packing layer, a floor mat is horizontally arranged on the surface of the second pool body;

The sedimentation tank is provided with a first water inlet pipe, a second water inlet pipe, a third water inlet pipe and a fourth water inlet pipe;

The water outlet of the first water inlet pipe is arranged between the energy dissipation sill and the first screen plate; the second water inlet pipe is arranged between the sedimentation tank and the gravel layer, and the first The water inlet of the second water inlet pipe is higher than the water outlet of the second water inlet pipe, and the water outlet of the second water inlet pipe is higher than the water outlet of the first water inlet pipe and higher than the first screen plate; The third water inlet pipe is arranged horizontally between the sedimentation tank and the second pool body, and the water inlet and outlet of the third water inlet pipe are higher than the water inlet of the second water inlet pipe; the fourth water inlet pipe The water pipe is arranged horizontally between the sedimentation tank and the annular packing area, and the water inlet and outlet of the fourth water inlet pipe are arranged between the water outlet of the second water inlet pipe and the first screen plate; The fourth water inlet pipe also includes a spring pressure assembly, and the spring pressure assembly is arranged in the water inlet of the fourth water inlet pipe;

An annular packing water inlet pipe is arranged horizontally between the filter tank and the annular packing area, and the water inlet of the annular packing water inlet pipe is arranged on the porous packing layer;

The annular packing area includes a zeolite layer, a soil layer and a primary battery;

The soil layer is arranged above the zeolite layer, and the soil layer is provided with emergent plants with pointed bottom planting pots; A metal electrode and an inert electrode in contact with the bottom surface, the metal electrode is wrapped with a cylinder, and the primary battery also includes an LED lamp connected in series in the primary battery and exposed on the surface of the annular packing area;

An annular packing outlet pipe is arranged horizontally between the annular packing area and the ecological purification pond, and the installation height of the annular packing outlet pipe is lower than the installation height of the annular packing inlet pipe;

An ecological floating board is arranged in the ecological purification pond, and the ecological floating board includes a foam board, a hollow box and an elastic device; the foam board is provided with a plurality of small holes and fixed on the top of the hollow box, the The tapered side of the elastic device is connected to the bottom of the hollow box, and the rod-shaped side of the elastic device is fixed on the bottom of the ecological purification pond; the wall of the ecological purification pond is provided with a main outlet pipe, and the general The height of the outlet pipe is located between the annular packing water inlet pipe and the annular packing outlet pipe and is higher than the rod-shaped side of the elastic device.

Further, the water outlet of the first water inlet pipe faces the slope of the energy dissipation sill and is at a height greater than 20cm from the energy dissipation sill.

Further, the installation height of the first screen partition is at least 10 cm higher than the installation height of the water outlet of the first water inlet pipe.

Further, the filler particle size range of the gravel layer is 1cm-2cm, the filler particle size range of the ceramsite layer is 2cm-3cm, and the filler particle size range of the steel slag layer is 2cm-3cm. The filler particle size range of the aluminum sludge filler layer is 3cm-5cm.

Further, the installation height of the second water inlet pipe is at least 10 cm lower than the installation height of the third water inlet pipe, and the installation height of the fourth water inlet pipe is at least 10 cm lower than the installation height of the second water inlet pipe, so The distance between the third water inlet pipe and the floor mat is greater than 15cm.

Further, the metal electrode arranged in the annular packing area is a magnesium electrode, and the inert electrode arranged in the annular packing area is a graphite electrode.

Further, the metal electrode and the inert electrode are 5 cm higher than the bottom surface of the annular packing area, the metal electrode and the inert electrode are 10 cm higher than the surface of the annular packing area, and the metal electrode and the inert electrode are The distance between them is 3cm~7cm.

Further, the cylindrical barrel is an insulating barrel.

Further, densely distributed permeable holes are opened on the wall of the cylinder.

Further, the rural ecological wetland purification treatment system includes an annular body or a one-sided body. In the annular body, the center point of the ecological purification pond is used as the center, and the ring-shaped sedimentation is set sequentially from the outside to the inside. Pond, the filter tank and the ring-shaped packing area; in the unilateral body, the sedimentation tank and the filter tank are rectangular pool bodies, and the ecological purification pond is provided with a square ring-shaped ring-shaped packing zone, the settling tank, the filter tank and the annular packing zone are arranged adjacent to each other.

Beneficial effect

It can be seen from the above technical solutions that the technical solution of the present invention provides a rural ecological wetland purification treatment system. The system is provided with multiple water inlets on the side wall of the settling tank to adapt to different water inflows and form a variety of water flow paths to ensure The system is running normally; add a primary battery device, use the primary battery technology to strengthen the phosphorus removal capacity of the wetland system, change the distribution of phosphorus in the wetland system, and generate electricity at the same time, reduce the energy consumption of sewage treatment, and have a green and low-carbon effect; the manufacturing cost of this wetland system is low , Small footprint, with plants and LED lights, both landscape effects.

It should be understood that all combinations of the foregoing concepts, as well as additional concepts described in more detail below, may be considered part of the inventive subject matter of the present disclosure, provided such concepts are not mutually inconsistent.

The foregoing and other aspects, embodiments and features of the present teachings can be more fully understood from the following description when taken in conjunction with the accompanying drawings. Other additional aspects of the invention, such as the features and/or advantages of the exemplary embodiments, will be apparent from the description below, or learned by practice of specific embodiments in accordance with the teachings of the invention.

Description of drawings

The drawings are not drawn to scale according to the true reference objects. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like reference numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of the various aspects of the invention will now be described by way of example with reference to the accompanying drawings, in which:

Fig. 1 is the cross-sectional view of the front structure of a rural ecological wetland purification treatment system in the embodiment of the present application;

Fig. 2 is a top view structure diagram of a rural ecological wetland purification treatment system in the embodiment of the present application;

FIG. 3 is a cross-sectional front view of a rural ecological wetland purification treatment system in other embodiments of the present application;

Fig. 4 is a top view structure diagram of a rural ecological wetland purification treatment system in other embodiments of the present application.

In the figure, the meaning of each reference mark is as follows:

Sedimentation tank 1; energy dissipation sill 101; mud outlet 102; first screen plate 103; artificial ladder 104; first pool body 2; gravel layer 201; ceramsite layer 202; steel slag layer 203; Second tank body 3; second screen plate 301; aluminum sludge packing layer 302; floor mat 303; annular packing area 4; zeolite layer 401; soil layer 402; emergent plants 403; Electrode 406; ecological purification pond 5; foam board 501; hollow box 502; elastic device 503; first water inlet pipe 6; second water inlet pipe 7; third water inlet pipe 8; fourth water inlet pipe 9; spring pressure assembly 901; An annular filler water inlet pipe 10; an annular filler outlet pipe 11; a total outlet pipe 12.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will clearly and completely describe the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by those skilled in the art to which the present invention belongs.

"First", "second" and similar words used in the patent application specification and claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Likewise, unless the context clearly dictates otherwise, words such as "a", "an" or "the" in the singular do not imply a limitation of number but rather mean that there is at least one. "comprises" or "comprises" and similar words mean that the elements or items presented before "comprises" or "comprises" include the features, integers, steps, operations, elements and/or items listed after "comprises" or "comprises" or component, does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or collections thereof. "Up", "Down", "Left", "Right" and so on are only used to indicate the relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

In the existing technology, the amount of sewage generated by rural life is generally less, and the residents live more scatteredly, and the water consumption is relatively small, so the amount of sewage discharge is also small, and the amount of sewage generated by villagers is different in the morning and evening due to their daily life. When the amount of sewage is small, it may cause cut-off, that is, the discharge of sewage is discontinuous and has the characteristics of large changes. The existing ecological wetland management system is difficult to adapt to a variety of sewage discharges; rural domestic sewage It basically does not contain metal substances and toxic substances, but contains phosphorus, the water quality fluctuates greatly, and the biodegradability is strong. The existing ecological wetland management system has insufficient phosphorus removal capacity. In view of this, the present invention conceives a rural ecological wetland purification treatment system as shown in Figure 1, which includes a sedimentation tank 1, a filter tank, an annular filling area 4 and an ecological purification pond 5 arranged in sequence according to the direction of water flow.

The sedimentation tank 1 includes an energy dissipation sill 101 , a sludge outlet 102 , a first screen partition 103 and an artificial ladder 104 . The energy dissipation sill 101 is fixed at the bottom of the sedimentation tank 1, the mud outlet 102 is arranged at the bottom of the wall of the sedimentation tank 1, and the first screen plate 103 is horizontally fixed in the sedimentation tank 1 , the artificial ladder 104 is fixed on the wall of the sedimentation tank 1 .

The filter pool is divided into the bottom layer of the pool, the middle layer of the pool and the upper layer of the pool by two horizontal partitions parallel to each other; the bottom layer of the pool and the middle layer of the pool are set as the first pool body 2, and the upper layers of the pool are set as the second pool Body 3.

In this embodiment, the bottom layer of the pool includes a gravel layer 201, a ceramsite layer 202, and a steel slag layer 203 arranged in the direction of water flow, and the gravel layer 201, the ceramsite layer 202, and the steel slag layer 203 The partitions are arranged in parallel and the water inlets of each layer are staggered; the middle layer of the pool includes a porous packing layer 204, and the porous packing layer 204 is provided with water inlets communicating with the middle layer of the pool and the upper layer of the pool; the second The pool body 3 is provided with a second screen plate 301 and an aluminum sludge filler layer 302 according to the water flow direction, and a floor mat 303 is horizontally arranged on the pool surface of the second pool body 3 . The filler particle size range of the gravel layer 201 is 1cm~2cm, the filler particle size range of the ceramsite layer 202 is 2cm~3cm, the filler particle size range of the steel slag layer 203 is 2cm~3cm, the aluminum pollution The filler particle size range of the mud filler layer 302 is 3cm~5cm.

The sedimentation tank 1 is provided with a first water inlet pipe 6 , a second water inlet pipe 7 , a third water inlet pipe 8 and a fourth water inlet pipe 9 .

The sewage enters the ecological wetland purification treatment system described in this embodiment according to the flow direction, and the sewage first enters the sedimentation tank 1 from the first water inlet pipe 6 .

In this embodiment, the water outlet of the first water inlet pipe 6 is arranged between the energy dissipation sill 101 and the first screen plate 103, in order to better discharge the first water inlet pipe 6 into The sewage changes from rapid flow to slow flow, eliminates kinetic energy, and prevents sediment from floating under the impact of water flow. The water outlet of the first water inlet pipe 6 is facing the slope of the energy dissipation ridge 101 and is at a distance from the energy dissipation The height of the ridge 101 is greater than 20cm. In order to intercept the large particles discharged into the sewage, the installation height of the first screen plate 103 is at least 10 cm higher than the installation height of the water outlet of the first water inlet pipe 6 . When the sediment in the sedimentation tank 1 has accumulated to a certain extent, the sediment is regularly cleaned through the mud outlet 102 .

According to the flow direction of the sewage, it enters the ecological wetland purification treatment system described in this embodiment, and the sewage enters the filter tank from the sedimentation tank 1 next.

Due to the discontinuous discharge of sewage generated by the villagers in the morning and evening due to daily routines and large changes, this application designs multiple routes on the channel for the sedimentation tank 1 to enter the subsequent treatment to adapt to various sewage discharges.

In this embodiment, the first route: the second water inlet pipe 7 is set between the sedimentation tank 1 and the gravel layer 201, and the water inlet of the second water inlet pipe 7 is higher than the second water inlet pipe 7. The water outlet of the water inlet pipe 7 , the water outlet of the second water inlet pipe 7 is higher than the water outlet of the first water inlet pipe 6 and higher than the first screen plate 103 . When the discharge of sewage is small, the water level in the sedimentation tank 1 rises to the second water inlet pipe 7 and flows into the first pool body 2 through the second water inlet pipe 7 . The sewage flows in the first pool body 2 in a baffled manner, passes through the gravel layer 201, the ceramsite layer 202 and the steel slag layer 203 in sequence, and then flows from the bottom layer of the pool to the middle layer of the pool, The middle layer of the pool is provided with the porous filler layer 204, and the porous filler layer 204 is uniformly mixed and sintered by fly ash, clay and caking agent to form a block structure, which absorbs pollutants and is also beneficial for microorganisms to form films.

In this embodiment, the second route: the third water inlet pipe 8 is horizontally arranged between the sedimentation tank 1 and the second pool body 3, and the water inlet and outlet of the third water inlet pipe 8 are as high as At the water inlet of the second water inlet pipe 7. When the amount of sewage is large, the water level of the sedimentation tank 1 rises to the third water inlet pipe 8, and now the sewage flows into the filter tank from the second water inlet pipe 7 and the third water inlet pipe 8 for purification .

In this embodiment, the third route: the fourth water inlet pipe 9 is horizontally arranged between the sedimentation tank 1 and the annular packing area 4, and the water inlet and outlet of the fourth water inlet pipe 9 are arranged at Between the water outlet of the second water inlet pipe 7 and the first screen plate 103; the fourth water inlet pipe 9 also includes a spring pressure assembly 901, and the spring pressure assembly 901 is arranged on the fourth water inlet pipe 9 in the water inlet. When the water volume continues to increase and the water level of the sedimentation tank 1 continues to rise and exceeds the third water inlet pipe 8, under the pressure of the high water level, the spring pressure assembly 901 is opened under a relatively large water pressure, and part of the water body directly flows from The fourth water inlet pipe 9 enters the annular packing area 4 .

In order to realize the communication of the above route and transport sewage smoothly, the setting height of the second water inlet pipe 7 is at least 10 cm lower than the setting height of the third water inlet pipe 8, and the setting height of the fourth water inlet pipe 9 is lower than the setting height of the third water inlet pipe 9. The height of the second water inlet pipe 7 is at least 10 cm, and the distance between the third water inlet pipe 8 and the floor mat 303 is greater than 15 cm.

According to the flow direction of the sewage, it enters the ecological wetland purification treatment system described in this embodiment, and then the sewage enters the annular packing area 4 from the filter tank.

In this embodiment, an annular packing water inlet pipe 10 is arranged horizontally between the filter tank and the annular packing area 4 , and the water inlet of the annular packing water inlet pipe 10 is arranged on the porous packing layer 204 .

The annular packing area 4 includes a zeolite layer 401, a soil layer 402 and a primary battery.

In an embodiment, the soil layer 402 is arranged above the zeolite layer 401, and the soil layer 402 is provided with emergent plants 403 with a pointed bottom planting pot, and the emergent plants 403 are planted in the planting pot and uniformly distributed in the annular packing area 4, the emergent plants 403 are preferably one or more plants such as reeds, cattails, wild rice stems, cattails, etc., and plants suitable for growth can also be selected according to the climatic conditions of the construction area, so that the wetland The system has good landscape appreciation. In some embodiments, the bottom of the planting pot of the emergent plant 403 is provided with a fixed pile with a pointed structure, and the bottom of the fixed pile is inserted into the soil layer 402 to avoid the movement of the plant pot caused by the impact of water flow and enhance stability; The planting pot of water plant 403 is provided with holes around the bottom and around, and the plant roots are attached to the soil inside the planting pot, and the sewage enters the planting pot through the holes, and the plant roots use the nitrogen and phosphorus in the water body as nutrients for their own growth, thereby purifying the water body .

In this embodiment, two groups of primary cells are provided. As shown in FIG. 2 , the two groups of primary cells are symmetrical about the center of the circle of the annular packing area 4 . The primary battery includes a metal electrode 405 and an inert electrode 406 hidden in the zeolite layer 401 and not in contact with the bottom surface of the annular packing area 4 . The metal electrode 405 arranged in the annular packing area 4 is a magnesium electrode, and the magnesium electrode is selected from pure magnesium or a magnesium alloy electrode plate with a magnesium content greater than or equal to 95%; the inert electrode 406 arranged in the annular packing area 4 for graphite electrodes. The metal electrode 405 is wrapped with a cylindrical tube 404, and the cylindrical tube 404 is an insulating tube, which is used to carry loads and improve chemical reaction resistance. As a preference, materials such as polypropylene can be used; Densely distributed permeable holes are also opened to ensure that the primary battery system has a better electrolysis effect. The primary battery also includes an LED light connected in series in the primary battery and exposed on the surface of the annular packing area 4, and the LED light is used to improve the landscape appreciation of the wetland system at night. In some embodiments, an aeration device can also be installed by using the generated electric energy, and the generated electric energy can be used for intermittent aeration by the aeration device. As the negative electrode, the magnesium electrode undergoes an oxidation reaction, releasing magnesium ions that combine with the phosphate ions in the sewage to form phosphates such as magnesium ammonium phosphate and then precipitate, enriching phosphorus near the magnesium electrode, improving the removal effect of phosphorus, and producing extra power.

In order to ensure the normal operation of the original battery, the metal electrode 405 and the inert electrode 406 are 5 cm higher than the bottom surface of the annular packing area 4, and the metal electrode 405 and the inert electrode 406 are higher than the surface of the annular packing area 4 10 cm, the distance between the metal electrode 405 and the inert electrode 406 is 3 cm to 7 cm.

According to the flow direction of the sewage, it enters the ecological wetland purification treatment system described in this embodiment, and then the sewage enters the ecological purification pond 5 from the annular packing area 4 .

An annular packing outlet pipe 11 is arranged horizontally between the annular packing area 4 and the ecological purification pond 5 , and the installation height of the annular packing outlet pipe 11 is lower than that of the annular packing inlet pipe 10 . In this embodiment, the annular packing outlet pipe 11 and the annular packing inlet pipe 10 are symmetrical to the center of the ecological purification pond 5, and the specific structure is shown in Figure 2, allowing sewage to pass through the annular packing area 4 The path to reach the ecological purification pond 5 reaches the maximum.

An ecological floating board is arranged inside the ecological purification pond 5 , and the ecological floating board includes a foam board 501 , a hollow box 502 and an elastic device 503 . The foam board 501 is provided with a plurality of small holes and is fixed on the top of the hollow box 502. The foam board 501 is provided with a plurality of water inlet holes to facilitate water entering the hollow box 502 for storage. The elastic device 503 has different two sides, one side of the elastic device 503 is a tapered side, and the tapered side is connected to the bottom of the hollow box 502, and the other side of the elastic device 503 is a rod shape side, and the rod-shaped side is fixed at the bottom of the ecological purification pond 5 . The tapered side of the elastic device 503 provides elastic force to improve the stability of the ecological floating board on the water surface and the wind resistance of the plants. The rod-shaped side of the elastic device 503 is a support rod, which is connected to the ecological purification pond 5 pool bottom with tapered sides. Under normal circumstances, the hollow box 502 is full of water, and when the water intake is suspended, the plants can absorb water from the hollow box 502 to prevent from dying.

According to the flow direction of the sewage, it enters the ecological wetland purification treatment system described in this embodiment, and the sewage is purified and finally flows out from the ecological purification pond 5 .

The pool wall of the ecological purification pond 5 is provided with a total outlet pipe 12, and the height of the total outlet pipe 12 is located between the annular packing inlet pipe 10 and the annular packing outlet pipe 11 and is higher than the elastic device The rod side of the 503.

The rural ecological wetland purification treatment system includes an annular body or a single-sided body. The shapes of the sedimentation tank 1 and the filter tank are except for the annular body shown in Figure 1 and Figure 2 in this embodiment, and each pool body is uniform from the outside to the inside. It is circular, and in the circular body, with the center point of the ecological purification pond 5 as the center, the circular sedimentation tank 1, the filter tank and the annular packing area are sequentially set from the outside to the inside 4. In addition, the rural ecological wetland purification treatment system can also be designed as a rectangular body as shown in Figure 3 and Figure 4, that is, a one-sided body. In the one-sided body, the sedimentation tank 1 and the filter tank are rectangular Pond body, described ecological purification pond 5 is provided with square annular described annular packing area 4, and described settling tank 1, described filter tank and described annular packing area 4 are adjacently arranged, and specific shape is according to ecological wetland. Designed with environmental and cost considerations in mind.

In summary, this application designs a rural ecological wetland purification treatment system. The system is equipped with multiple water inlets on the side wall of the sedimentation tank to adapt to different water inflows, and forms a variety of water flow paths to ensure the normal operation of the system; adding a primary battery device, Use primary battery technology to strengthen the phosphorus removal capacity of the wetland system, cooperate with plants to absorb nitrogen and phosphorus elements, change the distribution of elements in the wetland system, and generate electricity at the same time, reduce the energy consumption of sewage treatment, and have a green and low-carbon effect; the manufacturing cost of the wetland system is low, accounting for The ground area is small, with plants and LED lights, it operates stably and has a landscape effect at the same time.

Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Those skilled in the art of the present invention may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be defined by the claims.

Claims (10)

1. The rural ecological wetland purification treatment system is characterized by comprising a sedimentation tank (1), a filter tank, an annular packing area (4) and an ecological purification pond (5) which are sequentially arranged according to the water flow direction;

the sedimentation tank (1) comprises an energy dissipation bank (101), a sludge discharge port (102), a first screen plate (103) and an artificial ladder (104); the energy dissipation ridge (101) is fixed at the bottom of the sedimentation tank (1), the sludge discharge opening (102) is arranged on the tank wall of the sedimentation tank (1), the first screen plate (103) is horizontally fixed in the sedimentation tank (1), and the artificial ladder (104) is fixed on the tank wall of the sedimentation tank (1);

the filter tank is divided into a tank bottom layer, a tank middle layer and a tank high layer by two parallel horizontal partition plates; the bottom layer and the middle layer of the pool are arranged as a first pool body (2), and the high layer of the pool is arranged as a second pool body (3);

the bottom of the pool comprises a gravel layer (201), a ceramsite layer (202) and a steel slag layer (203) which are arranged in the water flow direction, wherein the gravel layer (201), the ceramsite layer (202) and the steel slag layer (203) are arranged in parallel through vertical partition plates, and water inlets of all the layers are staggered; the middle layer of the pond comprises a porous filler layer (204), and the porous filler layer (204) is provided with a water inlet communicated with the middle layer of the pond and the high layer of the pond; the second tank body (3) is provided with a second screen plate (301) and an aluminum sludge filler layer (302) according to the water flow direction, and a ground cushion (303) is horizontally arranged on the tank surface of the second tank body (3);

a first water inlet pipe (6), a second water inlet pipe (7), a third water inlet pipe (8) and a fourth water inlet pipe (9) are arranged in the sedimentation tank (1) and adapt to various sewage discharge amounts in a plurality of routes;

the water outlet of the first water inlet pipe (6) is arranged between the energy dissipation ridge (101) and the first screen plate (103) and is opposite to the slope of the energy dissipation ridge (101); the second water inlet pipe (7) is arranged between the sedimentation tank (1) and the gravel layer (201), the water inlet of the second water inlet pipe (7) is higher than the water outlet of the second water inlet pipe (7), and the water outlet of the second water inlet pipe (7) is higher than the water outlet of the first water inlet pipe (6) and higher than the first screen plate (103); the third water inlet pipe (8) is horizontally arranged between the sedimentation tank (1) and the second tank body (3), and the water inlet and the water outlet of the third water inlet pipe (8) are higher than the water inlet of the second water inlet pipe (7); the fourth water inlet pipe (9) is horizontally arranged between the sedimentation tank (1) and the annular filling area (4), and the water inlet and the water outlet of the fourth water inlet pipe (9) are arranged between the water outlet of the second water inlet pipe (7) and the first screen plate (103); the fourth water inlet pipe (9) further comprises a spring pressure assembly (901), and the spring pressure assembly (901) is arranged in the water inlet of the fourth water inlet pipe (9) so as to communicate the sedimentation tank (1) with the annular packing area (4) under a large water pressure;

an annular filler water inlet pipe (10) is horizontally arranged between the filter tank and the annular filler zone (4), and a water inlet of the annular filler water inlet pipe (10) is arranged on the porous filler layer (204);

the annular packing region (4) comprises a zeolite layer (401), a soil layer (402) and a primary cell;

the soil layer (402) is arranged above the zeolite layer (401), and emergent aquatic plants (403) with pointed bottom planting pots are arranged on the soil layer (402); the primary battery comprises a metal electrode (405) and an inert electrode (406), wherein the metal electrode (405) and the inert electrode (406) are hidden in the zeolite layer (401) and are not in contact with the bottom surface of the annular filling area (4), the metal electrode (405) is externally wrapped with a cylindrical barrel (404), and the primary battery further comprises an LED lamp which is connected in series in the primary battery and is exposed on the surface of the annular filling area (4);

an annular filler water outlet pipe (11) is horizontally arranged between the annular filler zone (4) and the ecological purification pond (5), and the arrangement height of the annular filler water outlet pipe (11) is lower than that of the annular filler water inlet pipe (10);

an ecological floating plate is arranged in the ecological purifying pond (5), and comprises a foam plate (501), a hollow box body (502) and an elastic device (503); the foam plate (501) is provided with a plurality of small holes and is fixed at the top of the hollow box body (502), the conical side of the elastic device (503) is connected to the bottom of the hollow box body (502), and the rod-shaped side of the elastic device (503) is fixed at the bottom of the ecological purifying pond (5); the ecological purification pond (5) is characterized in that a total water outlet pipe (12) is arranged on the pond wall, and the height of the total water outlet pipe (12) is positioned between the annular filler water inlet pipe (10) and the annular filler water outlet pipe (11) and is higher than the rod-shaped side of the elastic device (503).

2. The rural ecological wetland purification treatment system according to claim 1, wherein: the water outlet of the first water inlet pipe (6) is opposite to the slope of the energy dissipation ridge (101) and is more than 20cm away from the energy dissipation ridge (101).

3. The rural ecological wetland purification treatment system according to claim 1, wherein: the setting height of the first screen plate (103) is at least 10cm greater than the setting height of the water outlet of the first water inlet pipe (6).

4. The rural ecological wetland purification treatment system according to claim 1, wherein: the particle size range of the filler of the gravel layer (201) is 1 cm-2 cm, the particle size range of the filler of the ceramsite layer (202) is 2 cm-3 cm, the particle size range of the filler of the steel slag layer (203) is 2 cm-3 cm, and the particle size range of the filler of the aluminum sludge filler layer (302) is 3 cm-5 cm.

5. The rural ecological wetland purification treatment system according to claim 1, wherein: the setting height of the second water inlet pipe (7) is lower than the setting height of the third water inlet pipe (8) by at least 10cm, the setting height of the fourth water inlet pipe (9) is lower than the setting height of the second water inlet pipe (7) by at least 10cm, and the distance between the third water inlet pipe (8) and the ground mat (303) is larger than 15cm.

6. The rural ecological wetland purification treatment system according to claim 1, wherein: the metal electrode (405) arranged in the annular packing region (4) is a magnesium electrode, and the inert electrode (406) arranged in the annular packing region (4) is a graphite electrode.

7. The rural ecological wetland purification treatment system according to claim 6, wherein: the metal electrode (405) and the inert electrode (406) are higher than the bottom surface of the annular filling area (4) by 5cm, the metal electrode (405) and the inert electrode (406) are higher than the surface of the annular filling area (4) by 10cm, and the distance between the metal electrode (405) and the inert electrode (406) is 3 cm-7 cm.

8. The rural ecological wetland purification treatment system according to claim 1, wherein: the cylindrical barrel (404) is an insulating barrel.

9. The rural ecological wetland purification treatment system according to claim 8, wherein: the wall of the cylindrical barrel (404) is provided with densely distributed water permeable holes.

10. The rural ecological wetland purification treatment system according to claim 1, wherein: the rural ecological wetland purification treatment system comprises an annular body or a single side body, wherein the annular body is internally sleeved with a circular sedimentation tank (1), a filter tank and an annular packing area (4) from outside to inside in sequence by taking the central point of the ecological purification pond (5) as the center of a circle; in the unilateral body, sedimentation tank (1) with the filtering ponds are the rectangle cell body, ecological purification pond (5) overcoat is equipped with square annular packing district (4), sedimentation tank (1) the filtering ponds with annular packing district (4) are adjacent to be set up.