CN211497108U - Novel detachable undercurrent wetland of diversion flow oxidation pond coupling device - Google Patents

Abstract

A novel variable-flow oxidation pond coupled with a detachable subsurface wetland device, including a baffled oxidation pond and a detachable subsurface wetland device, the oxidation pond is provided with a water inlet and a water outlet, and the water outlet is connected to the subsurface wetland device; the interior of the oxidation pond has a total of There are nine areas, each area is separated by a partition to form a nine-square grid shape, and channels are opened on the partition between the two adjacent areas; the first area is an anaerobic area, and the second area to The sixth area is the aerobic area, the seventh area is the sedimentation area, the eighth area is the denitrification area, and the ninth area is the filtered water area; four equal-sized packing cages are arranged in the subsurface wetland device. One end is provided with an inlet, and the other end is provided with an outlet; this scheme adopts the technology of changing the direction flow oxidation pond to couple the subsurface flow wetland. The device has a compact structure and a small footprint. It can quickly remove suspended solids and high-concentration organic matter in the water body, and improve purification. speed and improve the quality of the effluent.

Description

A Novel Detachable Subsurface Flow Wetland Device Coupled with Variable-Direction Flow Oxidation Ponds

technical field

The utility model belongs to the technical field of sewage treatment, and in particular relates to a novel variable-direction flow oxidation pond coupling and detachable submerged flow wetland device.

Background technique

In the field of water pollution treatment, oxidation ponds are one of the important means to remove organic matter in water bodies. It can effectively purify nitrogen and phosphorus and other pollutants in the water body, reduce the concentration of pollutants in the water body, and improve the self-purification ability of the water body, but in the specific application process, there are unstable purification effects, low purification efficiency, slow purification rate, and climate. In addition, the oxidation pond equipment covers a large area, and it is easy to breed mosquitoes and produce odor. Therefore, the promotion and application of oxidation ponds in engineering practice is seriously limited.

Some existing technical solutions include multi-stage oxidation pond coupling treatment system, natural contact oxidation pond treatment system, graphene photocatalytic oxidation sewage oxidation pond treatment system, etc. In order to improve the treatment effect of the oxidation pond, the existing oxidation pond system only uses solar energy as the initial energy and relies on the microorganisms, algae and plants growing in the pond to treat the sewage, so the efficiency of various organisms using solar energy is low, and the purification rate is slow, resulting in the overall purification of the system. The efficiency is low and the organic load is low, so each processing system occupies a large area. Some oxidation pond systems will improve the treatment efficiency by means of multi-stage series connection, which further expands the area of the equipment and makes it difficult to operate during use. Subsurface wetlands mainly use the triple synergy of soil, medium, microorganisms, and plants to treat sewage and sludge. However, there are problems in the application of constructed wetlands, such as easy blockage, difficulty in stable operation, and short operation life cycle; it can be seen that the traditional oxidation pond is insufficient in terms of oxygen conditions, and the traditional subsurface wetland device cooperates with the oxidation pond. When in use, its front end is easily blocked, which is inconvenient in terms of packing replacement and cleaning, and is not conducive to modular operation.

Therefore, it is necessary to design a new type of demountable submerged flow wetland device coupled with a variable-direction flow oxidation pond. By adopting a baffled structure, it can solve the shortage of oxygen conditions in the traditional oxidation pond, the purification effect is unstable, the purification efficiency is low, and the purification rate is slow. At the same time, a detachable subsurface wetland device is installed to couple with the oxidation pond, which solves the problems of traditional artificial wetlands, such as easy blockage, difficulty in replacing packing and cleaning, difficulty in stable operation, and short operation life cycle.

SUMMARY OF THE INVENTION

In order to overcome the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a novel variable-direction flow oxidation pond coupling detachable submerged flow wetland device.

In order to achieve the above purpose and other related purposes, the technical solution provided by the present invention is: a novel variable-direction flow oxidation pond coupled detachable subsurface flow wetland device, including a baffled oxidation pond and a detachable subsurface flow wetland device, the The baffled oxidation pond is provided with a water inlet and a water outlet, and the water outlet is communicated with the detachable submerged wetland device through a pipeline; a total of nine areas are set inside the baffled oxidation pond, and each area passes through a barrier The plates are separated to form a nine-square grid shape, and the nine areas are the first area, the second area, the third area, the fourth area, the fifth area, the sixth area, the seventh area, the eighth area and the ninth area. area, the water inlet is located in the first area, the water outlet is located in the ninth area, and channels are opened on the partition between two areas with adjacent serial numbers; the first area is an anaerobic zone, the second zone, the third zone, the fourth zone, the fifth zone and the sixth zone are all aerobic zones, the seventh zone is a sedimentation zone, so The eighth area is a denitrification area, and the ninth area is a water filtration area; four filler cages of equal size are evenly arranged in the detachable submerged wetland device, and each of the filler cages passes through dense porous sand. When the stone filler is filled, an inlet is provided at one end of the detachable submerged wetland device, and an outlet is provided at the other end of the detachable submerged wetland device.

Preferably, the water inlet is located at the lower part of the first area, the upper part of the partition plate between the first area and the second area is provided with a first channel, and the second area and the third area are The lower part of the partition plate is provided with a second channel, the upper part of the partition plate between the third area and the fourth area is opened with a third channel, and the lower part of the partition plate between the fourth area and the fifth area is opened with the fourth channel, the upper part of the partition plate between the fifth region and the sixth region is provided with a fifth channel, the lower part of the partition plate between the sixth region and the seventh region is provided with a sixth channel, the The upper part of the partition plate between the seventh area and the eighth area is provided with a seventh channel, the lower part of the partition plate between the eighth area and the ninth area is provided with an eighth channel, and the water outlet is opened in the The upper part of the ninth area.

Preferably, the anaerobic zone composed of the first zone is provided with a first hanging spherical filler, and the sedimentation zone composed of the seventh zone is provided with a second hanging spherical filler.

Preferably, aeration pipes and aeration pipes are arranged in the aerobic zone composed of the second zone, the third zone, the fourth zone, the fifth zone and the sixth zone. The aeration head is located in the middle of the aeration pipe.

Preferably, the denitrification zone composed of the eighth zone is provided with a spherical hanging membrane.

Preferably, a filter plate is arranged in the filtered water outlet area composed of the ninth area, the filter plate is located at the upper water outlet of the ninth area, and an aeration head is also arranged below the filter plate .

Preferably, the first area, the second area, the third area, the fourth area, the fifth area, the sixth area, the seventh area, and the eighth area And the bottom of the ninth area is provided with a sludge discharge pipe.

Preferably, the four packing cages with the same size are respectively a first packing cage, a second packing cage, a third packing cage and a fourth packing cage; the first packing cage and the third packing cage located at the left and right ends The dense-porous sand and stone set in the four-packing cage is large-diameter sand and stone, and the dense-porous sand and stone set in the second and third packing cages located in the middle are small-diameter sand. At the same time, hooks are provided above the first packing cage, the second packing cage, the third packing cage and the fourth packing cage

Preferably, a lift pump is provided inside the first area.

Preferably, the water outlet of the baffled oxidation pond is provided with a total of four water outlet pipes, and the four water outlet pipes are evenly inserted into the detachable submerged wetland device; The tail end of the water collecting tank is provided with a water collecting tank, and a drainage port is opened at the upper end of the water collecting tank.

The structural features of the above scheme are explained as follows:

The utility model adopts the technology of coupling the variable-direction flow oxidation pond to the subsurface flow wetland, so as to achieve the purpose of efficiently and quickly removing the solid suspended matter and high-concentration organic matter in the water body, and optimizes the treatment process of the black and odorous water body. The oxidation pond is divided into nine areas, each area is separated by a partition to form the shape of a nine-square grid, and the nine areas are divided into pressure oxygen area, aerobic area, sedimentation area, denitrification area and filtered water area. Each area is combined in the same equipment, the compact device structure makes it have the advantages of smaller footprint compared with other devices, simple installation and operation process, and reduced human and material investment. At the same time, in the process of sewage treatment, the treatment efficiency is greatly In addition, this scheme connects the oxidation pond to the subsurface wetland. The subsurface wetland is 1.2 meters long and 0.8 meters wide. The water body enters and exits from top to bottom. The equipment is used to set filter areas at intervals, and each area is wide. 0. 25 meters, the filter area is a packing cage filled with dense sand and gravel, insoluble organic matter is removed by microorganisms through the sedimentation and filtration of wetlands, soluble organisms are adsorbed, absorbed, and biometabolized by plant roots, and nitrogen and phosphorus in sewage are degraded. Substances can also be removed through the metabolism of microorganisms and the absorption of plants; the effluent from the oxidation pond is deeply purified by the soil, plants and microorganisms in the subsurface wetland, which can effectively remove nutrients such as nitrogen and phosphorus, and the water quality has been further improved. Not only that, The existence of the oxidation pond can also alleviate the blockage of the wetland system and maintain the stable operation of the wetland system, thereby prolonging the service life. The two devices form complementary advantages and greatly increase the treatment effect.

The flow direction of sewage in the oxidation pond is as follows: sewage enters from the lower water inlet of the first area, flows into the second area through the first channel on the upper part of the partition plate between the first area and the second area, and flows from the second area and the third area. The second channel in the lower part of the partition plate flows into the third area, the third channel in the upper part of the partition plate between the third area and the fourth area flows into the fourth area, and the fourth channel in the lower part of the partition plate between the fourth area and the fifth area flows into the fourth area. Flow into the fifth area, flow into the sixth area from the fifth channel on the upper part of the partition plate between the fifth area and the sixth area, flow into the seventh area from the sixth channel on the lower part of the partition plate between the sixth area and the seventh area, and flow from the seventh area The seventh channel on the upper part of the partition board between the eighth region and the eighth region flows into the eighth region, and the eighth channel on the upper part of the partition board between the eighth region and the ninth region flows into the ninth region, and finally the treated water flows from the upper part of the ninth region. The water outlet flows out of the oxidation pond and enters the subsurface wetland device.

The first area is the anaerobic zone. The anaerobic zone is equipped with hanging spherical fillers with a height of 1.2 meters. The sewage passes through the fillers from bottom to top for anaerobic reaction. The anaerobic biological reaction is usually used as a pretreatment facility, which is suitable for treating high temperature and high concentration. It reduces the volume of the subsequent aerobic ponds and avoids the problem of sludge floating and clogging the subsequent ponds.

The second to sixth zones are all aerobic zones. An aeration head is set in the middle of the aerobic zone to increase the oxygen content. The aeration length is 0.8 meters. The aeration head is set in the middle of the aeration pipe. Organic matter is transformed into inorganic matter and solid organic matter through aerobic biological reactions.

The seventh area is the settling area. The settling area is provided with hanging spherical fillers. The sewage enters from above, and the solid particles in the sewage settle to the bottom of the seventh area for digestion.

The eighth area is the denitrification zone. In the denitrification zone, a spherical hanging membrane is set up without aeration. The sewage enters from the upper part and flows out from the lower part.

The ninth area is the water filtration area. The top of the area is equipped with a filter plate with a length of 0.3 meters to filter the solids in the water. An aeration head is installed at the lower part of the filter plate to increase the amount of oxygen.

The first to ninth zones are all provided with sludge discharge pipes, wherein the sludge produced in the seventh to ninth zones can be returned to the first zone to realize the circulation process.

The first packing cage, the second packing cage, the third packing cage, and the fourth packing cage, the dense-porous sandstone particle sizes of the packing are respectively large particle size, small particle size, small particle size and large particle size; The particle size filler has a large specific surface area, which is conducive to microbial film hanging, and has high purification efficiency. The inlet and outlet are not easily blocked by using large particle size fillers. The surrounding holes of the filler cage are covered with through holes, which can facilitate the passage of water; the upper end of the filler cage is equipped with The hanging ring is convenient for mechanical lifting and putting in, and the detachable function is realized. Plants planted on the wetland surface further absorb nitrogen and phosphorus pollutants.

A lift pump is arranged at the bottom of the first area, and external water can be stably pumped into the baffled oxidation pond through the lift pump.

Set four outlet pipes to be evenly inserted into the detachable submerged wetland device, so that the water can enter into the detachable submerged wetland device evenly; The treated water is collected in the sump and then discharged uniformly through the drain.

The beneficial effects of the present utility model are as follows: A novel variable-direction flow oxidation pond coupling detachable submerged flow wetland device designed in this scheme has the advantages of simple process structure, flexible design, easy maintenance, and more importantly, greatly reduces the floor space, and the coupling The system has a longer running time, high pollution load, strong impact resistance, better and stable effluent quality, and improved purification rate. It is suitable for advanced treatment and ecological treatment of sewage.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the utility model.

Figure 2 is a schematic diagram of the working principle of the sewage flow in the baffled oxidation pond.

Figure 3 is a schematic diagram of the structure of the anaerobic zone.

Figure 4 is a schematic diagram of the structure of the aerobic zone.

Figure 5 is a schematic diagram of the structure of the settlement zone.

Figure 6 is a schematic diagram of the structure of the denitrification zone.

FIG. 7 is a schematic diagram of the structure of the filtered water outlet area.

FIG. 8 is a schematic structural diagram of a detachable submerged wetland device.

FIG. 9 is a top view of the overall structure.

In the above drawings, the first area 1, the second area 2, the third area 3, the fourth area 4, the fifth area 5, the sixth area 6, the seventh area 7, the eighth area, the ninth area 9, Water inlet 10, first channel 11, second channel 12, third channel 13, fourth channel 14, fifth channel 15, sixth channel 16, seventh channel 17, eighth channel 18, water outlet 19, baffle Type oxidation pond 20, detachable submerged wetland device 21, sludge discharge pipeline 22, first hanging spherical packing 23, second hanging spherical packing 24, aeration pipe 25, aeration head 26, spherical hanging film 27, filter plate 28 , hook 29, first stuffing cage 30, second stuffing cage 31, third stuffing cage 32, fourth stuffing cage 33, inlet 34, outlet 35, sump 36, lift pump 37, floating island plants 38.

Detailed ways

The embodiments of the present invention are described below by specific embodiments, and those who are familiar with the technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

Please refer to Figure 1 to Figure 8. It should be noted that the structures, proportions, sizes, etc. shown in the drawings in this specification are only used to cooperate with the contents disclosed in the specification, so as to be understood and read by those who are familiar with this technology, and are not used to limit the implementation of the present invention. Therefore, it does not have technical substantive significance. Any modification of structure, change of proportional relationship or adjustment of size should still fall in The technical content disclosed by the present invention should be within the scope that can be covered. At the same time, the terms such as "up", "down", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and clarity, and are not used to limit this specification. The applicable scope of the utility model and the change or adjustment of its relative relationship shall be regarded as the applicable scope of the present utility model without substantially changing the technical content.

Example: As shown in FIG. 1 , a new type of variable-direction flow oxidation pond 20 is coupled with a detachable subsurface flow wetland device 21, including a baffled oxidation pond 20 and a detachable subsurface flow wetland device 21, and the baffled oxidation pond 20 is opened. There are a water inlet 10 and a water outlet 19, and the water outlet 19 is communicated with a detachable submerged wetland device 21 through a pipeline; a total of nine areas are set inside the baffled oxidation pond 20, and each area is separated by a partition to form a nine-square grid The nine regions are the first region 1, the second region 2, the third region 3, the fourth region 4, the fifth region 5, the sixth region 6, the seventh region 7, the eighth region 8 and the ninth region 9. The water inlet 10 is located in the first area 1, the water outlet 19 is located in the ninth area 9, and channels are opened on the partitions between the two adjacent areas of the serial number; the first area 1 is an anaerobic area, and the second area is an anaerobic area. Zone 2, third zone 3, fourth zone 4, fifth zone 5 and sixth zone 6 are all aerobic zones, seventh zone 7 is sedimentation zone, eighth zone 8 is denitrification zone, ninth zone 9 is Filtration water area; floating island plants 38 are floating on the upper water surface in the first to ninth areas, and the main function of the floating island plants 38 is to purify water quality.

Four filler cages of equal size are evenly arranged in the detachable submerged wetland device 21, each of the filler cages is filled with dense-porous sand and gravel fillers, and an inlet 34 is provided above one end of the subsurface wetland device, An outlet 35 is provided below the other end of the subsurface wetland device. The utility model adopts the technology of coupling the variable-direction flow oxidation pond to the subsurface flow wetland, so as to achieve the purpose of efficiently and quickly removing the solid suspended matter and high-concentration organic matter in the water body, and optimizes the treatment process of the black and odorous water body. The baffled oxidation pond 20 is divided into nine areas, and each area is separated by a partition to form the shape of a nine-square grid, and the nine areas are divided into a pressure oxygen area, an aerobic area, a sedimentation area, a denitrification area and filtered water. It combines multiple areas in the same equipment, and the compact device structure makes it have the advantages of smaller footprint compared with other devices, simple installation and operation process, reduced human and material investment, and at the same time in the sewage treatment process. , the treatment efficiency is greatly improved, and the quality of the effluent is more stable; in addition, this scheme connects the oxidation pond 20 to the subsurface wetland. As shown in Figure 8, the subsurface wetland device 21 is provided with a total of four filter areas 29 of equal area, and at the same time There is an interval between the two adjacent filter areas 29; the subsurface wetland device 21 is 1.2 meters long and 0.8 meters wide, and the water body enters and exits from top to bottom. The sedimentation and filtration of wetlands are removed by microorganisms, and soluble organisms are adsorbed, absorbed, and degraded by biological metabolism through plant roots. Nitrogen and phosphorus substances in sewage can also be removed by microbial metabolism and absorption by plants; the effluent from oxidation pond 20 passes through the soil in the subsurface wetland. The deep purification of plants and microorganisms can effectively remove nutrients such as nitrogen and phosphorus, and the water quality has been further improved. Not only that, the existence of the oxidation pond 20 can also alleviate the blockage of the wetland system and maintain the stable operation of the wetland system, thereby To prolong the life, the two devices form complementary advantages, which greatly increases the treatment effect.

The preferred embodiment is as follows:

As shown in FIG. 2 , the water inlet 10 is located at the lower part of the first area 1 , the upper part of the partition plate between the first area 1 and the second area 2 is provided with a first channel 11 , and the partition plate between the second area 2 and the third area 3 A second channel 12 is opened at the lower part of the bottom plate, a third channel 13 is opened in the upper part of the partition plate between the third region 3 and the fourth region 4, and a fourth channel 14 is opened in the lower part of the partition plate between the fourth region 4 and the fifth region 5 , the upper part of the partition plate between the fifth region 5 and the sixth region 6 is provided with a fifth channel 15, the lower part of the partition plate between the sixth region 6 and the seventh region 7 is provided with a sixth channel 16, the seventh region 7 and the eighth The upper part of the partition plate between the regions 8 is provided with a seventh channel 17, the lower part of the partition plate between the eighth region 8 and the ninth region 9 is provided with an eighth channel 18, and the water outlet 19 is opened in the upper part of the ninth region 9; The flow direction in the flow-type oxidation pond 20 is specifically: sewage enters from the water inlet 10 at the lower part of the first area 1, and flows into the second area 2 through the first channel 11 on the upper part of the partition plate between the first area 1 and the second area 2, The second channel 12 at the lower part of the partition plate between the second area 2 and the third area 3 flows into the third area 3, and the third channel 13 at the upper part of the partition plate between the third area 3 and the fourth area 4 flows into the fourth area 4, The fourth channel 14 in the lower part of the partition plate between the fourth region 4 and the fifth region 5 flows into the fifth region 5, and the fifth channel 15 in the upper part of the partition plate between the fifth region 5 and the sixth region 6 flows into the sixth region 6, The sixth channel 16 in the lower part of the partition plate between the sixth region 6 and the seventh region 7 flows into the seventh region 7, and the seventh channel 17 in the upper part of the partition plate between the seventh region 7 and the eighth region 8 flows into the eighth region 8, The eighth channel 18 on the upper part of the partition plate between the eighth region 8 and the ninth region 9 flows into the ninth region 9, and finally the treated water flows out of the baffled oxidation pond 20 from the water outlet 19 on the upper part of the ninth region 9 and enters the detachable Type subsurface wetland device 21.

As shown in FIG. 3 , the first hanging spherical packing 23 is arranged in the anaerobic zone composed of the first area 1. The first area 1 is the anaerobic zone, and the hanging spherical packing is arranged in the anaerobic zone. The height of the packing is 1.2 meters. The anaerobic reaction is carried out through the filler from bottom to top. The anaerobic biological reaction is usually used as a pretreatment facility, which is suitable for treating high-temperature and high-concentration sewage, reducing the volume of the subsequent aerobic pond, and avoiding the problem of sludge floating and blocking the subsequent pond.

As shown in Figure 4, the aerobic zone composed of the second zone 2, the third zone 3, the fourth zone 4, the fifth zone 5 and the sixth zone 6 is provided with an aeration pipe 25 and an aeration head 26, The aeration head 26 is located in the middle of the aeration pipe 25; the second to sixth areas 6 are all aerobic zones, and the aeration head 26 is arranged in the middle of the aerobic zone to increase the oxygen content, the aeration length is 0.8 meters, and the aeration head 26 is set In the middle of the aeration pipe 25, the film-forming filler is suspended in the area, and the organic matter is converted into inorganic matter and solid organic matter through aerobic biological reaction.

As shown in FIG. 5 , a second hanging spherical filler 24 is arranged in the sedimentation area composed of the seventh area 7 ; the hanging spherical filler is arranged in the sedimentation area, the sewage enters from above, and the solid particles in the sewage settle to the bottom of the seventh area 7 Digestion.

As shown in Figure 6, the denitrification zone composed of the eighth zone 8 is provided with a spherical hanging film 27; the denitrification zone is provided with a spherical hanging film 27, without aeration, the sewage enters from the upper part and flows out from the lower part.

As shown in FIG. 7 , a filter plate 28 is arranged in the filtered water outlet area composed of the ninth area 9, the filter plate 28 is located at the upper water outlet 19 of the ninth area 9, and an aeration head 26 is also arranged below the filter plate 28. ; The top of the area is provided with a filter plate 28, 0.3 meters long, to filter out the solids in the water, and the aeration head 26 is set at the lower part of the filter plate 28 to increase the amount of oxygen.

As shown in FIG. 1 , the first area 1 , the second area 2 , the third area 3 , the fourth area 4 , the fifth area 5 , the sixth area 6 , the seventh area 7 , the eighth area 8 and the ninth area 9 The bottom is provided with a sludge discharge pipe 22; the first to ninth zones are provided with a sludge discharge pipe 22, wherein the sludge generated in the seventh zone 7 to the ninth zone 9 can be returned to the first zone 1 to realize the cycle process .

As shown in FIG. 8 , the four packing cages with the same size are respectively a first packing cage 30 , a second packing cage 31 , a third packing cage 32 and a fourth packing cage 33 ; The dense-porous sandstone set in the first stuffing cage 30 and the fourth stuffing cage 33 is large-diameter sandstone, and the second stuffing cage 31 and the third stuffing cage 32 located in the middle of the The dense-porous sandstone is small-sized sandstone; the first packing cage 30, the second packing cage 31, the third packing cage 32, and the fourth packing cage 34, the dense-porous sandstone particle size of the fillers are respectively large particle size , small particle size, small particle size, large particle size; the use of small particle size fillers in the middle area has a large specific surface area, which is conducive to microbial film hanging, high purification efficiency, and large particle size fillers are not easy to block the inlet and outlet.

As shown in Fig. 1 and Fig. 8, the upper end of the stuffing cage is equipped with a hook 29, which is convenient for mechanically hoisting out and putting in, and realizes the detachable function. Plants planted on the wetland surface further absorb nitrogen and phosphorus pollutants.

A lift pump 37 is arranged inside the first area; external water can be stably pumped into the baffled oxidation lagoon 20 through the lift pump 37 .

As shown in FIG. 9 , the water outlet of the baffled oxidation pond 20 is provided with a total of four water outlet pipes, and the four water outlet pipes are evenly inserted into the detachable submerged flow wetland device 21; the four evenly arranged water outlet pipes can make the water evenly distributed Enter the inside of the detachable subsurface wetland device 21 .

As shown in FIG. 8 , a water collecting tank 36 is provided at the rear end of the detachable submerged wetland device 21, and a drainage port is opened at the upper end of the water collecting tank 36; The treated water in the detachable submerged wetland device 21 is collected in the sump 36, and then discharged uniformly through the drainage outlet.

The beneficial effects of this embodiment are as follows: adopting the technology of changing the direction flow oxidation pond to couple the subsurface flow wetland, the device has a compact structure and a small footprint, and at the same time, it can quickly remove the suspended solids and high-concentration organic matter in the water body, improve the purification rate, and improve the effluent. water quality.

The above-mentioned embodiments merely illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims (10)

1. The utility model provides a novel detachable undercurrent wetland of diversion pond of oxidation coupling device which characterized in that: the device comprises a baffling type oxidation pond and a detachable subsurface flow wetland device, wherein the baffling type oxidation pond is provided with a water inlet and a water outlet, and the water outlet is communicated with the detachable subsurface flow wetland device through a pipeline; the baffled oxidation pond is internally provided with nine regions, each region is separated by a partition plate to form a nine-square grid shape, the nine regions are respectively a first region, a second region, a third region, a fourth region, a fifth region, a sixth region, a seventh region, an eighth region and a ninth region, the water inlet is positioned in the first region, the water outlet is positioned in the ninth region, and a channel is arranged on the partition plate between two adjacent regions with serial numbers; the first area is an anaerobic area, the second area, the third area, the fourth area, the fifth area and the sixth area are aerobic areas, the seventh area is a settling area, the eighth area is a denitrification area, and the ninth area is a filtered water area; evenly be provided with four filler cages that the size equals in the detachable undercurrent wetland device, every fill up through dense hole gravel and sand filler in the filler cage detachable undercurrent wetland device one end is provided with the entry, detachable undercurrent wetland device below is provided with the export.

2. The novel flow-changing oxidation pond coupled detachable subsurface flow wetland device of claim 1 is characterized in that: the water inlet is positioned at the lower part of the first area, a first channel is arranged at the upper part of the partition board between the first area and the second area, a second channel is arranged at the lower part of the partition plate between the second area and the third area, a third channel is arranged at the upper part of the partition plate between the third area and the fourth area, a fourth channel is arranged at the lower part of the partition board between the fourth area and the fifth area, a fifth channel is arranged at the upper part of the partition board between the fifth area and the sixth area, a sixth channel is arranged at the lower part of the partition board between the sixth area and the seventh area, a seventh channel is arranged at the upper part of the partition board between the seventh area and the eighth area, an eighth channel is formed in the lower portion of the partition plate between the eighth area and the ninth area, and the water outlet is formed in the upper portion of the ninth area.

3. The novel flow-changing oxidation pond coupled detachable subsurface flow wetland device of claim 1 is characterized in that: a first spherical filler is arranged in the anaerobic zone consisting of the first zone, and a second spherical filler is arranged in the settling zone consisting of the seventh zone.

4. The novel flow-changing oxidation pond coupled detachable subsurface flow wetland device of claim 1 is characterized in that: and aeration pipes and aeration heads are arranged in the aerobic zone consisting of the second zone, the third zone, the fourth zone, the fifth zone and the sixth zone, and the aeration heads are positioned in the middle of the aeration pipes.

5. The novel flow-changing oxidation pond coupled detachable subsurface flow wetland device of claim 1 is characterized in that: and a spherical hanging membrane is arranged in the denitrification region consisting of the eighth region.

6. The novel flow-changing oxidation pond coupled detachable subsurface flow wetland device of claim 1 is characterized in that: the filter is arranged in the filtering water outlet area and is positioned at the water outlet at the upper end of the ninth area, and an aeration head is further arranged below the filter.

7. The novel flow-changing oxidation pond coupled detachable subsurface flow wetland device of claim 1 is characterized in that: mud discharge pipelines are arranged at the bottoms of the first area, the second area, the third area, the fourth area, the fifth area, the sixth area, the seventh area, the eighth area and the ninth area.

8. The novel flow-changing oxidation pond coupled detachable subsurface flow wetland device of claim 1 is characterized in that: the four packing cages with the same size are respectively a first packing cage, a second packing cage, a third packing cage and a fourth packing cage; the dense-hole sand stones arranged in the first packing cage and the fourth packing cage at the left end and the right end are large-particle-size sand stones, and the dense-hole sand stones arranged in the second packing cage and the third packing cage at the middle part are small-particle-size sand stones; and hooks are arranged above the first packing cage, the second packing cage, the third packing cage and the fourth packing cage.

9. The novel flow-changing oxidation pond coupled detachable subsurface flow wetland device of claim 1 is characterized in that: a lift pump is disposed within the first region.

10. The novel flow-changing oxidation pond coupled detachable subsurface flow wetland device of claim 1 is characterized in that: the water outlet of the baffling type oxidation pond is provided with four water outlet pipes in total, the four water outlet pipes are uniformly inserted into the detachable subsurface flow wetland device, the tail end of the detachable subsurface flow wetland device is provided with a water collecting tank, and the upper end of the water collecting tank is provided with a water outlet.

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