CN217297444U - Constructed wetland structure - Google Patents
Constructed wetland structure Download PDFInfo
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- CN217297444U CN217297444U CN202220181661.9U CN202220181661U CN217297444U CN 217297444 U CN217297444 U CN 217297444U CN 202220181661 U CN202220181661 U CN 202220181661U CN 217297444 U CN217297444 U CN 217297444U
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- artificial wetland
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The utility model discloses an artificial wetland structure, which comprises an artificial wetland pool I, an artificial wetland pool II which is connected and communicated with the artificial wetland pool I and is lower than the artificial wetland pool I in height, and an artificial wetland water outlet channel which is connected and communicated with the artificial wetland pool II; the first artificial wetland tank is provided with an artificial wetland water inlet pipe penetrating into the artificial wetland tank, a water distribution main pipe communicated with the artificial wetland water inlet pipe, and a plurality of water distribution branch pipes communicated with the water distribution main pipe in a criss-cross connection manner; the bottom of the first artificial wetland pool is provided with a porous water collecting pipe penetrating to the upper part of the second artificial wetland pool; and the bottom of the second artificial wetland pool is provided with a water outlet channel water inlet pipe penetrating into the upper part of the artificial wetland water outlet channel, the middle upper part of the artificial wetland water outlet channel is provided with a water outlet channel water outlet pipe, and the bottom of the artificial wetland water outlet channel is provided with an emptying pipe.
Description
Technical Field
The utility model relates to a constructed wetland pipeline layout's structure field especially relates to a constructed wetland pipeline layout structure who is applied to and handles city torrential rain runoff.
Background
At present, most of artificial wetlands are used for treating urban sewage and industrial wastewater, and are focused on removing organic matters; however, the aim of treating storm runoff is to treat nitrogen, phosphorus and heavy metals, and the aspects of the structure, the treatment mode and the like of the storm runoff are different from the treatment of urban sewage, and certain differences exist. The storm runoff can generate large flow during the rainfall period or after the rainfall, the water quality also changes greatly, the storm runoff can carry a large amount of substances harmful to organisms, the input of pollutants happens accidentally, and the pollutants carried in water cannot be completely removed, so the mode adopted by the artificial wetland for treating urban storm runoff is that the pollutants are captured and retained firstly and then degraded, and the degradation is basically carried out when the later stage rainwater flow is small or no rainwater exists. However, in the prior art, as rainstorm can be rapidly obtained and the flow rate is large, in an artificial wetland system for treating rainstorm runoff, a mode of rapidly treating the rainstorm runoff is often adopted, so that the rapid treatment and drainage speed of the rainstorm can be ensured, the urban sewage treatment cannot be impacted, and even the backflow and the like can be prevented; however, the artificial wetland system is not correspondingly treated by the treatment mode, still pollutes rivers and the like, and impacts the artificial wetland system, so that the artificial wetland has no strong degradation treatment capability when treating storm runoff; in addition, in order to achieve a certain treatment effect when the artificial wetland is used for treating storm runoff, a certain hydraulic retention time is required, but the existing treatment mode does not have enough hydraulic retention time, and at least 30min of hydraulic retention time is needed during the storm so as to ensure the treatment effect, but the structure and the layout in the prior art do not achieve hydraulic retention time, and the treatment mode in the prior art mainly aims at draining as soon as possible and preventing backflow, so that the treatment efficiency is reduced, and a large area is occupied for achieving the purpose of draining as soon as possible; at the moment, the constructed wetland system can not reach the emission standard, but becomes a pollution source.
Therefore, certain improvements to the existing artificial wetland treatment system are required.
Disclosure of Invention
The utility model aims at improving above-mentioned prior art's shortcoming, the utility model provides an artificial wetland structure is provided, this be applied to artificial wetland pipeline layout structure who handles city torrential rain runoff and adopt two artificial wetland ponds to handle the torrential rain, the artificial wetland inlet tube is introduced fast the torrential rain to the water distribution be responsible for, the water distribution is responsible for and flows in and out in the artificial wetland pond one through many water distribution branch pipes fast, carry out the entrapment layer upon layer through packing to the pollutant and hold back, then in introducing artificial wetland pond two through many porous collection water pipes to the rainwater that holds back through the entrapment, the filler in the rethread artificial wetland pond two carries out quadratic entrapment to this rainwater and holds back layer upon layer, discharge to the artificial humidity outlet channel and discharge to the river from the outlet channel drain pipe from the outlet channel at last, lakes etc. Therefore, by adopting the layer-by-layer trapping and interception and pipeline water distribution modes of the two artificial wetland pools, the hydraulic retention time of more than 30min of water in the artificial wetland pools can be ensured, the treatment of pollutants is ensured to the maximum extent, and the degradation treatment is carried out by aquatic plants on the filler of the artificial wetland pools; in addition, the water distribution mode of dispersing the outlet water after the rainstorm water enters the water inlet can quickly disperse the rainwater into the artificial wetland pool, and prevent the rainwater from flowing backwards into the urban sewage treatment system due to untimely and non-quick drainage. The whole artificial wetland pipeline layout structure fully utilizes the space of the artificial wetland, exerts the synergistic effect among systems (plants, microorganisms and substrates), has greatly improved treatment capacity compared with the traditional artificial wetland system, and has effective and reliable treatment capacity; the sewage basically flows below the ground and is trapped and intercepted layer by layer, so that the defect of direct discharge of the sewage is reduced to the maximum extent, and the impact on hydraulic power and pollution load can be buffered; the sanitary condition is better, no odor exists, the method is widely applied, the maintenance is easy, and the operating cost is low.
The utility model provides a technical scheme that its technical problem adopted is: an artificial wetland structure comprises an artificial wetland pool I, an artificial wetland pool II which is communicated with the artificial wetland pool I and is shorter than the artificial wetland pool I in height, and an artificial wetland water outlet channel which is communicated with the artificial wetland pool II in a connecting way; the first artificial wetland tank is provided with an artificial wetland water inlet pipe penetrating into the artificial wetland tank, a water distribution main pipe communicated with the artificial wetland water inlet pipe, and a plurality of water distribution branch pipes communicated with the water distribution main pipe in a criss-cross connection manner; the bottom of the first artificial wetland pool is provided with a porous water collecting pipe penetrating to the upper part of the second artificial wetland pool; and the bottom of the second artificial wetland pool is provided with a water outlet channel water inlet pipe penetrating into the upper part of the artificial wetland water outlet channel, the middle upper part of the artificial wetland water outlet channel is provided with a water outlet channel water outlet pipe, and the bottom of the artificial wetland water outlet channel is provided with an emptying pipe.
Furthermore, the porous collecting water pipe is provided with holes which are symmetrically arranged and are downwards opened with 15mm, and the porous collecting water pipe and the water inlet pipe of the water outlet channel form an inverted Z-shaped structure through 90-degree elbows.
Furthermore, a water distribution layer I, a water distribution branch pipe and a water distribution layer II, a rubble layer I and a rubble layer II which bury the front sections of the water distribution main pipe, the water distribution branch pipe and the porous water collection pipe are laid in the artificial wetland pool from top to bottom. An aquatic plant is planted on the top of the water distribution layer, and the aquatic plant is as follows: pinus thunbergii, lemongrass, acorus calamus, etc.
Furthermore, a water distribution layer II, a medium coarse sand layer, a melon and rice layer II, a rubble layer III and a rubble layer IV which bury the rear section position of the porous collecting water pipe and the front section position of the water outlet channel water inlet pipe are laid in the artificial wetland pool II from top to bottom. Aquatic plants are planted at the top of the water distribution layer II and are as follows: green leaf pink canna, saxifrage, zebra leaf golden yellow canna, etc.
The components of the filler have little influence on biological treatment, but the filler containing the components of calcium, iron, aluminum and the like is beneficial to ion exchange on wastewater containing phosphorus and heavy metal ions, and pollutants in storm runoff can be intercepted through the ion exchange and then subsequently degraded. The aquatic plants have certain bearing capacity for various pollutants with high concentration, and the aquatic plants can more effectively utilize redundant nutrients or can better bear the pollutants, so that the removal of the pollutants is favorable; the depth of the plant root system determines the depth of the wetland, the deeper root system of the aquatic plant can enlarge the sewage treatment space, and the capability of resisting diseases and insects is strong.
Furthermore, the main water distribution pipe, the branch water distribution pipes, the porous water collecting pipe, the water inlet pipe of the water outlet channel, the water discharge pipe and the emptying pipe are all connected by adopting PVC pipelines in a bonding way; all PVC pipeline outsides are equipped with pre-buried rigidity waterproof casing, and the end cap is all installed to the end of all PVC pipelines, is connected between PVC pipeline and the end cap and adopts swing joint, and open at the end top of PVC pipeline has a bleeder vent and PVC pipeline end to be equipped with the sand net parcel.
Furthermore, the first artificial wetland pool is of a square pool structure.
Furthermore, the upper part of the second artificial wetland pool is of a square pool structure, and the lower part of the second artificial wetland pool is of an inverted trapezoidal pool structure; and a partition plate is arranged in the middle of the second artificial wetland pool to form two spaces.
Furthermore, the artificial wetland water outlet channel is of a square pool structure, and a cover plate is further arranged at the top of the artificial wetland water outlet channel.
Furthermore, waterproofing agents are coated on the bottom and three side surfaces of the artificial wetland pool I, the artificial wetland pool II and the artificial wetland water outlet channel.
To sum up, the utility model discloses an artificial wetland structure adopts two artificial wetland ponds to handle the torrential rain, and the artificial wetland inlet tube is introduced the torrential rain fast to the water distribution be responsible for on, and the water distribution is responsible for and flows in and out in the artificial wetland pond one through many water distribution branch pipes fast, carries out the entrapment layer upon layer through packing to the pollutant and holds back, then through many porous water collection pipes in introducing artificial wetland pond two to the rainwater that holds back through the entrapment of packing, the filler in the rethread artificial wetland pond two carries out the entrapment of secondary layer upon layer to this rainwater and holds back, discharges to the ditch from the outlet channel inlet tube to artificial humidity outlet channel and discharges to the river from the outlet channel drain pipe at last, lake etc.. Therefore, by adopting the layer-by-layer trapping and interception and pipeline water distribution modes of the two artificial wetland pools, the hydraulic retention time of more than 30min of water in the artificial wetland pools can be ensured, the treatment of pollutants is ensured to the maximum extent, and the degradation treatment is carried out by aquatic plants on the filler of the artificial wetland pools; in addition, the water distribution mode of dispersing the outlet water after the rainstorm water enters the water inlet can quickly disperse the rainwater into the artificial wetland pool, and prevent the rainwater from flowing backwards into the urban sewage treatment system due to untimely and non-quick drainage. The whole artificial wetland pipeline layout structure fully utilizes the space of the artificial wetland, exerts the synergistic effect among systems (plants, microorganisms and substrates), has greatly improved treatment capacity compared with the traditional artificial wetland system, and has effective and reliable treatment capacity; the sewage basically flows below the ground and is trapped and intercepted layer by layer, so that the defect of direct discharge of the sewage is reduced to the maximum extent, and the impact on hydraulic power and pollution load can be buffered; the sanitary condition is better, no odor exists, the method is widely applied, the maintenance is easy, and the operating cost is low.
Drawings
Fig. 1 is a plan view of the constructed wetland structure according to embodiment 1 of the present invention;
fig. 2 is a structural front view of the constructed wetland structure of embodiment 1 of the invention;
fig. 3 is a schematic diagram of the arrangement of the filler in the constructed wetland structure of the embodiment 1 of the invention;
FIG. 4 is a schematic view of the construction of a porous collection header;
FIG. 5 is a schematic cross-sectional view of a porous collection header;
FIG. 6 is a schematic cross-sectional view of the artificial wetland pool I;
FIG. 7 is a schematic cross-sectional view of a second artificial wetland pool;
fig. 8 is a schematic cross-sectional view of an artificial wetland water outlet channel.
Detailed Description
Example 1
The constructed wetland structure described in this embodiment 1, as shown in fig. 1 and 2, includes a first constructed wetland pool 1, a second constructed wetland pool 2 connected and communicated with the first constructed wetland pool and having a height lower than that of the first constructed wetland pool, and a second constructed wetland outlet channel 3 connected and communicated with the second constructed wetland pool; the artificial wetland pool I is provided with an artificial wetland water inlet pipe 4 penetrating into the artificial wetland pool, a water distribution main pipe 5 communicated with the artificial wetland water inlet pipe, and a plurality of water distribution branch pipes 6 communicated with the water distribution main pipe in a criss-cross connection manner; the bottom of the first artificial wetland pool is provided with a porous water collecting pipe 7 penetrating to the upper part of the second artificial wetland pool; and a water outlet channel water inlet pipe 8 penetrating into the upper part of the artificial wetland water outlet channel is arranged at the bottom of the artificial wetland pool II, a water outlet channel water outlet pipe 9 is arranged at the middle upper part of the artificial wetland water outlet channel, and an emptying pipe 10 is arranged at the bottom of the artificial wetland water outlet channel.
In the embodiment 1, as shown in fig. 4 and 5, the porous water collecting pipe is provided with symmetrically arranged openings 11 with 15mm downward, and the porous water collecting pipe and the water inlet pipe of the water outlet channel both form an inverted Z-shaped structure through 90 ° bends.
In this embodiment 1, as shown in fig. 3, a water distribution layer 12, a guar gum layer 13, a rubble layer 14, and a rubble layer 15 are laid from top to bottom in the artificial wetland pool, which bury the main water distribution pipe, the branch water distribution pipe, and the front section of the porous water collection pipe. An aquatic plant is planted on the top of the water distribution layer, and the aquatic plant is as follows: pinus thunbergii, lemongrass, acorus calamus, etc.
In this embodiment 1, as shown in fig. 3, a second water distribution layer 16, a medium-coarse sand layer 17, a second melon-rice layer 18, a third crushed stone layer 19 and a fourth crushed stone layer 20, which bury the rear section of the porous collection water pipe and the front section of the water inlet pipe of the water outlet channel, are laid in the second artificial wetland pool from top to bottom. Aquatic plants are planted at the top of the water distribution layer II and are as follows: green leaf pink canna, saxifrage, zebra leaf golden yellow canna, etc.
The components of the filler have little influence on biological treatment, but the filler containing the components of calcium, iron, aluminum and the like is beneficial to ion exchange on wastewater containing phosphorus and heavy metal ions, and pollutants in storm runoff can be intercepted through the ion exchange and then subsequently degraded. The aquatic plants have certain bearing capacity for various pollutants with high concentration, and the aquatic plants can more effectively utilize redundant nutrients or can better bear the pollutants, so that the removal of the pollutants is favorable; the depth of the plant root system determines the depth of the wetland, the deeper root system of the aquatic plant can enlarge the sewage treatment space, and the capability of resisting diseases and insects is strong.
In this embodiment 1, the main water distribution pipe, the branch water distribution pipe, the porous water collecting pipe, the water inlet pipe of the water outlet channel, the water outlet pipe and the emptying pipe are all bonded and connected by PVC pipes; all PVC pipeline outsides are equipped with pre-buried rigidity waterproof casing, and the end cap is all installed to the end of all PVC pipelines, is connected between PVC pipeline and the end cap and adopts swing joint, and open at the end top of PVC pipeline has a bleeder vent and PVC pipeline end to be equipped with the sand net parcel.
In this embodiment 1, as shown in fig. 6, the first artificial wetland pool has a square pool structure.
In this embodiment 1, as shown in fig. 7, the upper part of the second artificial wetland pool is of a square pool structure, and the lower part of the second artificial wetland pool is of an inverted trapezoidal pool structure; the middle position of the second artificial wetland pool is provided with a partition plate 21 to form two spaces.
In this embodiment 1, as shown in fig. 8, the artificial wetland water outlet channel has a square pool structure, and a cover plate 22 is further provided at the top of the artificial wetland water outlet channel.
In this embodiment 1, the bottom and three sides of the first artificial wetland pool, the second artificial wetland pool and the artificial wetland outlet channel are coated with water-proofing agents.
This constructed wetland structure adopts two constructed wetland ponds to handle the torrential rain, constructed wetland inlet tube introduces the torrential rain fast to the water distribution is responsible for on, the water distribution is responsible for and flows in and out constructed wetland pond one through many water distribution branch pipes fast, carry out the entrapment through packing and hold back to the pollutant layer upon layer, then lead into constructed wetland pond two through many porous collection water pipes the rainwater that holds back through the entrapment of packing in, the filler in the artifical wetland pond two of rethread carries out secondary entrapment layer upon layer to this rainwater and holds back, discharge to the artificial humidity outlet channel and discharge to river, lake etc. from the outlet channel drain pipe from the outlet channel inlet tube at last. Therefore, by adopting the layer-by-layer trapping and interception and pipeline water distribution modes of the two artificial wetland pools, the hydraulic retention time of more than 30min of water in the artificial wetland pools can be ensured, the treatment of pollutants is ensured to the maximum extent, and the degradation treatment is carried out by aquatic plants on the filler of the artificial wetland pools; in addition, the water distribution mode of dispersing the outlet water after the storm water enters the water can quickly disperse the rainwater into the artificial wetland pool, and prevent the rainwater from flowing back into the urban sewage treatment system due to untimely and untimely drainage. The whole artificial wetland pipeline layout structure fully utilizes the space of the artificial wetland, exerts the synergistic effect among systems (plants, microorganisms and substrates), has greatly improved treatment capacity compared with the traditional artificial wetland system, and has effective and reliable treatment capacity; the sewage basically flows below the ground and is trapped and intercepted layer by layer, so that the defect of direct discharge of the sewage is reduced to the maximum extent, and the impact on hydraulic power and pollution load can be buffered; the sanitary condition is better, no odor exists, the method is widely applied, the maintenance is easy, and the operating cost is low.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the structure of the present invention in any way. Any simple modification, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention all still fall within the scope of the technical solution of the present invention.
Claims (9)
1. The artificial wetland structure is characterized by comprising a first artificial wetland pool, a second artificial wetland pool which is communicated with the first artificial wetland pool and is lower than the first artificial wetland pool, and an artificial wetland water outlet channel which is communicated with the second artificial wetland pool; the artificial wetland pool I is provided with an artificial wetland water inlet pipe penetrating into the artificial wetland pool, a water distribution main pipe communicated with the artificial wetland water inlet pipe and a plurality of water distribution branch pipes communicated with the water distribution main pipe in a criss-cross connection manner; the bottom of the first artificial wetland pool is provided with a porous water collecting pipe penetrating to the upper part of the second artificial wetland pool; and the bottom of the second artificial wetland pool is provided with a water outlet channel water inlet pipe penetrating into the upper part of the artificial wetland water outlet channel, the middle upper part of the artificial wetland water outlet channel is provided with a water outlet channel water outlet pipe, and the bottom of the artificial wetland water outlet channel is provided with an emptying pipe.
2. The constructed wetland structure of claim 1, wherein the porous water collecting pipe is symmetrically provided with 15mm openings downwards, and the porous water collecting pipe and the water inlet pipe of the water outlet channel form an inverted Z-shaped structure through 90-degree elbows.
3. The constructed wetland structure of claim 2, wherein the first constructed wetland pool is internally provided with a first water distribution layer, a second melon and rice stone layer, a first gravel layer and a second gravel layer from top to bottom, which bury the front sections of the main water distribution pipe, the branch water distribution pipe and the porous water collecting pipe.
4. The constructed wetland structure of claim 3, wherein a water distribution layer II, a medium coarse sand layer, a melon and rice layer II, a gravel layer III and a gravel layer IV for burying the rear section of the porous water collecting pipe and the front section of the water inlet pipe of the water outlet channel are laid in the constructed wetland pool II from top to bottom.
5. The constructed wetland structure of claim 4, wherein the main water distribution pipe, the branch water distribution pipe, the porous water collecting pipe, the water inlet pipe of the water outlet channel, the water discharge pipe and the emptying pipe are all connected by PVC pipe bonding; all PVC pipeline outsides are equipped with pre-buried rigidity waterproof casing, and the end cap is all installed to the end of all PVC pipelines, is connected between PVC pipeline and the end cap and adopts swing joint, and open at the end top of PVC pipeline has a bleeder vent and PVC pipeline end to be equipped with the sand screen parcel.
6. The constructed wetland structure of claim 5, wherein the first constructed wetland tank is a square tank structure.
7. The constructed wetland structure of claim 6, wherein the second constructed wetland tank has a square tank structure at the upper part and an inverted trapezoidal tank structure at the lower part; and a partition plate is arranged in the middle of the second artificial wetland pool to form two spaces.
8. The constructed wetland structure of claim 7, wherein the constructed wetland water outlet channel is of a square pool structure, and the top of the constructed wetland water outlet channel is further provided with a cover plate.
9. The constructed wetland structure of claim 8, wherein the first constructed wetland pool, the second constructed wetland pool, the bottom and three sides of the constructed wetland outlet channel are coated with a waterproof agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220181661.9U CN217297444U (en) | 2022-01-21 | 2022-01-21 | Constructed wetland structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220181661.9U CN217297444U (en) | 2022-01-21 | 2022-01-21 | Constructed wetland structure |
Publications (1)
| Publication Number | Publication Date |
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| CN217297444U true CN217297444U (en) | 2022-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220181661.9U Active CN217297444U (en) | 2022-01-21 | 2022-01-21 | Constructed wetland structure |
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| CN (1) | CN217297444U (en) |
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- 2022-01-21 CN CN202220181661.9U patent/CN217297444U/en active Active
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