CN218146059U - Ecological restoration device for coastal lake reed swashing wetland - Google Patents
Ecological restoration device for coastal lake reed swashing wetland Download PDFInfo
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- CN218146059U CN218146059U CN202220284312.XU CN202220284312U CN218146059U CN 218146059 U CN218146059 U CN 218146059U CN 202220284312 U CN202220284312 U CN 202220284312U CN 218146059 U CN218146059 U CN 218146059U
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Abstract
The invention relates to an ecological restoration device for a reed sloshing wetland, which comprises a lake dike and is characterized in that a cofferdam for enclosing reed sloshing is arranged in the lake dike. The bottom of the reed ring is provided with a box body group consisting of a first box and a second box, the first box and the second box in the same group are provided with water through holes which are communicated, and the upper ends of the first box and the second box are open. The first tank has a ceiling level above the high water level in the local normal water level variation and the second tank has a ceiling level below the low water level in the local normal water level variation. And the first box and the second box are both filled with fillers. A high Cheng Bankuai is arranged between the first box and the lake bank, a low-height plate is left between the second box and the cofferdam, and a water pump is arranged between the first box and the high-height plate. The water inlet of the water pump is communicated with the first tank through a water inlet pipe, and the water outlet of the water pump is connected with a water outlet pipe. The outer end of the water outlet pipe corresponds to the height Cheng Bankuai. The invention can improve the water quality in the reed ring and ensure the water quality safety in the reed ring. Is suitable for ecological automatic restoration of wetland with reed swaying at the inner side of the shore of the lake.
Description
Technical Field
The invention relates to an automatic wetland restoration device. In particular to an automatic ecological restoration device for reed swamp wetland on the shore of a lake. Is particularly suitable for the ecological automatic restoration of the wetland with reed sloshing at the inner side of the shore of the lake.
Background
A great deal of reed swings are arranged on the inner sides of the northern part of the Taihu lake, such as the Zhushan bay, mei Lianghu and the shoreside of the tribute lake, and a great deal of blue algae can be accumulated in the reed swings in summer under the influence of monsoon and temperature conditions, so that the concentration of the blue algae is in an extremely high level. For example, the mass concentration of the algae in the bay mouth of the Zhushan lake in the severe water bloom area in 2007 is as high as 234mg/L. The Taihu lake basin has rich nutrition for a long time in the 70 th century, so that a great amount of mud and algae mud are accumulated on the surface layer of the reed sloshing, and the contents of ammonia nitrogen and organic matters are high. When external conditions are appropriate, the mud and algae mud gathered in the reed sloshing are easy to generate black water clusters, thereby influencing the water quality safety in the reed sloshing.
The reeds are always used as water purifiers of the lake Tai, wind-break walls for preventing flood and dissipating wave and digestion sites of blue algae in the lake. The reed can absorb a large amount of pollutants in a water body, particularly has strong adsorption, conversion and degradation effects on organic matters such as nitrogen, phosphorus and the like and heavy metals, can also reduce the flow velocity of shore flood and the impact force of waves on a flood bank, prevents the erosion of the flood on the river bank and an embankment, and can also provide a home for inhabiting, foraging and breeding other organisms. However, the reed ring is characterized in that under the action of wind waves, blue algae and sludge are easily enriched, and the sludge and algae sludge entering the reed ring are difficult to exit, so that the water quality in the reed ring cannot be improved.
Disclosure of Invention
The invention aims to provide an ecological restoration device for coastal lake reed sloshing wetland. By the device, the water quality in the reed sloshing can be greatly improved, and the water quality safety in the reed sloshing can be ensured.
The above problems to be solved by the present invention are realized by the following technical solutions:
the invention relates to an ecological restoration device for a lake reed sloshing wetland, which comprises a lake dike and is characterized in that: the cofferdam is arc-shaped, and two ends of the cofferdam are connected with corresponding parts of the lake bank together. The reed swing bottom is provided with a box body group, the box body group comprises a first box and a second box, the bottoms of the adjacent side box walls of the first box and the second box in the same group are provided with water through holes which are mutually corresponding and communicated, and the upper ends of the first box and the second box are open. Wherein the top elevation of the first tank is higher than the high water level in the local normal water level change, and the top elevation of the second tank is lower than the low water level in the local normal water level change; and the first box and the second box are both filled with fillers. A height Cheng Bankuai is left between the first tank and the lake bank, and the height Cheng Bankuai is higher than a high water level in the local normal water level change. And a low-elevation plate is reserved between the second box and the cofferdam, and the low-elevation plate is lower than the low water level in the local normal water level change. A water pump is arranged between the first tank and the high-lift plate block. The water inlet of the water pump is communicated with the first tank through a water inlet pipe, and the water outlet of the water pump is connected with a water outlet pipe. The outer end of the water outlet pipe corresponds to the height Cheng Bankuai.
Wherein, the top of the cofferdam is provided with a gap for communicating the reed swing with lake water, and a rubber dam which can be inflated and deflated and is used for controlling the opening or closing of the reed swing is arranged in the gap.
The rubber dam is a rubber tube with two closed ends, and an inflation and deflation mechanism is connected to the rubber tube.
The air charging and discharging mechanism comprises an air compressor, and an outlet of the air compressor is communicated with the rubber pipe through a valve and a pipeline.
The floating wetland is arranged on the water surface at the periphery of the cofferdam, and aquatic plants are arranged on the floating wetland.
The longitudinal two sides under the floating wetland are both connected with blocking curtains which longitudinally penetrate the length of the floating wetland.
Wherein the blocking curtain is a water permeable cloth.
And a space is reserved between the lower edge of the barrier curtain and the lake bottom.
Algae mud and floating mud collecting channels are arranged on the lake bottom below the two blocking curtains.
According to the scheme, the cofferdam for enclosing the reed swing is arranged in the lake bank. The cofferdam is arc-shaped, and both ends of the cofferdam are connected with corresponding parts of the lakebed. The height of the cofferdam can ensure that the inner water body and the outer water body are separated in the non-flood season. And a gap for communicating the reed sway with lake water is processed at the top of the cofferdam, an inflatable and deflatable rubber dam for controlling the opening or closing of the opening is arranged in the gap, when the lake water is good in quality, the air in the rubber dam is released to reduce the height of the rubber dam, and water bodies inside and outside the reed sway can freely flow, so that the reed sway has a purification effect on the lake water. When the lake water is poor in quality, the rubber dam is inflated by the air compressor, so that the height of the rubber dam is increased, the inner part and the outer part of the reed swing are separated, the water body in the reed swing is not influenced by the lake water, and the water body in the reed swing is ensured not to be deteriorated.
And because the bottom of the reed swing is provided with a box body group, the box body group comprises a first box and a second box, the bottoms of the adjacent side box walls of the first box and the second box are provided with water through holes which are mutually corresponding and communicated, and the upper ends of the first box and the second box are open. Wherein the first tank has a ceiling level higher than the high water level in the local normal water level change, and the second tank has a ceiling level lower than the low water level in the local normal water level change. And the first box and the second box are both filled with fillers. A height Cheng Bankuai is left between the first tank and the lake bank, and the height Cheng Bankuai is higher than a high water level in the local normal water level change. And a low-elevation plate is reserved between the second box and the cofferdam, and the low-elevation plate is lower than the low water level in the local normal water level change. A water pump is arranged between the first tank and the high-altitude plate block. The water inlet of the water pump is communicated with the first tank through a water inlet pipe, and the water outlet of the water pump is connected with a water outlet pipe. The outer end of the water outlet pipe corresponds to the height Cheng Bankuai. When the water quality of the water body in the reed ring is deteriorated, the vertical flow wetland system consisting of the first tank, the filler in the second tank, the water pump and the like is started to continuously filter and purify the water body in the reed ring, so that the water body in the reed ring can meet the requirements of landscape and ecology.
And because the floating wetland is arranged on the water surface at the periphery of the cofferdam, aquatic plants are planted on the floating wetland. The aquatic plants are higher than the water surface, and blue algae can not cross the floating wetland even if wind and waves exist. The two longitudinal sides under the floating humidity are connected with the blocking curtains longitudinally penetrating the length of the floating humidity, and under the combined action of the floating wetland and the blocking curtains, the blue algae suspended in the lake water can be blocked, so that the blue algae flowing to the position slowly precipitate. Thus, the influence of lake water on the water body in the reed swing can be avoided.
In addition, the lake bottom below the two barrier curtains is provided with algae mud and floating mud collecting channels, so that the blue algae and the mud precipitated on the water surface of the lake water and in the water body can be gathered in the collecting channels, and the influence of the blue algae on reed oscillation is further reduced.
Therefore, the technical scheme greatly improves the water quality in the reed ring and ensures the water quality safety in the reed ring.
Drawings
FIG. 1 is a schematic view of the ecological restoration device for the lake-inland reed wetland of the invention;
fig. 2 isbase:Sub>A schematic sectional viewbase:Sub>A-base:Sub>A of fig. 1.
Detailed Description
As shown in fig. 1 and 2, the ecological restoration device for the lake/lake reed marshland comprises a lake embankment 1, wherein a cofferdam 7 for enclosing the reed marshland is built on the inner side of the lake embankment 1. The cofferdam 7 is arc-shaped, and both ends of the cofferdam are connected with the corresponding parts of the lakebed 1. The height of the cofferdam 7 can ensure that the inner water body and the outer water body are separated in the non-flood season. The bottom of the reed ring is provided with box groups, and the number of the box groups is set according to the size of the reed ring and can be one, two or more. The number of the box body groups in this embodiment is one. The box body group comprises a first box 16 and a second box 13, the bottoms of the adjacent side box walls of the first box 16 and the second box 13 in the same group are respectively provided with a water through hole 15 which are corresponding to each other and communicated with each other, and the upper ends of the water through holes are open. Wherein the first tank 16 has a ceiling level higher than the high water level in the local normal water level change and the second tank 13 has a ceiling level lower than the low water level in the local normal water level change. The first and second tanks are filled with filler 14. The filler 14 is any one or a mixture of any more of humus soil, sand, stones, cobbles, pumice, fibers, coal cinder, slag, ores, ceramsite and organic carbon. In the embodiment, the filler is prepared by mixing sand, pebbles, cobblestones, pumice, fibers and coal cinder according to the weight ratio of 1. A high Cheng Bankuai 2 remains between the first tank 16 and the lake bank 1, said high level panels 2 being above the high water level in the local normal water level variation. And a low-elevation plate 5 is reserved between the second box 13 and the cofferdam 7, and the low-elevation plate 5 is lower than the low water level in the local normal water level change. A water pump 4 is arranged above the space between the first tank 16 and the high-rise plate 2. The water inlet of the water pump 4 is communicated with the first tank 13 through a water inlet pipe 41, and the water outlet thereof is connected with a water outlet pipe 3. The outer end of the water outlet pipe 3 corresponds to the height Cheng Bankuai. When the water quality of the water body in the reed ring is deteriorated, the vertical flow wetland system consisting of the first tank 16, the filler 14 in the first tank, the second tank 13, the filler 14 in the second tank, the water pump 4 and the like is started to continuously filter and purify the water body in the reed ring, so that the water body in the reed ring can meet the requirements of landscape and ecology.
The top of the cofferdam 7 is provided with a gap 17 for communicating the reed with lake water, and a rubber dam 6 which can be inflated and deflated and is used for controlling the opening or closing of the opening 17 is arranged in the gap 17. The rubber dam 6 is a rubber tube with two closed ends, and an inflation and deflation mechanism is connected on the rubber tube. The air inflation and deflation mechanism comprises an air compressor, and an outlet of the air compressor is communicated with the rubber pipe through a valve and a pipeline. When the lake water is good in quality, the air in the rubber dam 6 is released, so that the height of the rubber dam is reduced, the water bodies inside and outside the reed slosh can freely flow, and the reed slosh can purify the lake water. When the lake water is poor in quality, the rubber dam 6 is inflated by an air compressor, so that the height of the rubber dam is raised, the inside and the outside of the reed ring are separated, the water body in the reed ring is not influenced by the lake water, and the water body in the reed ring is not deteriorated.
A floating wetland 9 is arranged on the water surface at the periphery of the cofferdam 7, and aquatic plants 8 are planted on the floating wetland 9. The aquatic plants 8 are higher than the water surface, so that blue algae can not cross the floating wetland 9 even if wind and waves exist.
The longitudinal two sides under the floating wetland 9 are both connected with a blocking curtain 10 which longitudinally penetrates the length of the floating wetland. The barrier curtain 10 is a water permeable cloth. A space 11 is reserved between the lower edge of the barrier curtain 10 and the bottom of the lake. Under the combined action of the floating wetland 9 and the blocking curtain 10, the blue algae suspended in the lake water can be blocked, so that the blue algae flowing to the lake water slowly precipitate at the lake water. Thus, the influence of lake water on the water body in the reed swing can be avoided.
Algae mud and floating mud collecting ditches 12 are built on the lake bottom under the two blocking curtains 10. So that the blue algae and sludge deposited on the water surface and the water body of the lake water can be gathered in the collecting ditch 12, thereby further reducing the influence of the blue algae on the reed oscillation.
Claims (9)
1. Coastal lake reed swamp wetland ecological remediation device, including the lakebed, its characterized in that: a cofferdam used for enclosing the reed swing is arranged in the lake dike; the cofferdam is arc-shaped, and both ends of the cofferdam are connected with the corresponding parts of the lakebed; the height of the cofferdam can ensure that the inner water body and the outer water body are separated in the non-flood season; the bottom of the reed ring is provided with a box body group, the box body group comprises a first box and a second box, the first box is higher than the second box, the bottoms of the adjacent side box walls of the first box and the second box in the same group are provided with water through holes which are mutually corresponding and communicated, and the upper ends of the first box and the second box are open; wherein the top elevation of the first tank is higher than the high water level in the local normal water level change, and the top elevation of the second tank is lower than the low water level in the local normal water level change; the first box and the second box are both filled with filler; a height Cheng Bankuai is reserved between the first tank and the lake bank, and the height Cheng Bankuai is higher than a high water level in the local normal water level change; a low-elevation plate is reserved between the second box and the cofferdam, and the low-elevation plate is lower than the low water level in the local normal water level change; a water pump is arranged between the first tank and the high-lift plate block; the water inlet of the water pump is communicated with the first tank through a water inlet pipe, and the water outlet of the water pump is connected with a water outlet pipe; the outer end of the water outlet pipe corresponds to the height Cheng Bankuai.
2. The device for ecologically restoring the lake-lake reed swamp wetland according to claim 1, wherein: the top of the cofferdam is provided with a gap for communicating the reed swing with lake water, and a rubber dam which can be inflated and deflated and is used for controlling the opening or closing of the reed swing is arranged in the gap.
3. The device for ecologically restoring the lake-beaching reed wetland according to claim 2, which is characterized in that: the rubber dam is a rubber tube with two closed ends, and an inflation and deflation mechanism is connected to the rubber tube.
4. The device for ecologically restoring the lake-lake reed swamp wetland according to claim 3, wherein: the air inflation and deflation mechanism comprises an air compressor, and an outlet of the air compressor is communicated with the rubber pipe through a valve and a pipeline.
5. The device for ecologically restoring the lake-beaching reed wetland according to claim 1, which is characterized in that: the floating wetland is arranged on the water surface at the periphery of the cofferdam, and aquatic plants are arranged on the floating wetland.
6. The device for ecologically restoring the lake-beaching reed wetland according to claim 5, which is characterized in that: the longitudinal two sides under the floating wetland are both connected with blocking curtains which longitudinally penetrate the length of the floating wetland.
7. The device for ecologically restoring the lake-beaching reed wetland according to claim 6, which is characterized in that: the blocking curtain is a water permeable cloth.
8. The device for ecologically restoring the lake-lake reed swamp wetland according to claim 6, wherein: and a space is reserved between the lower edge of the barrier curtain and the lake bottom.
9. The device for ecologically restoring the lake-beaching reed wetland according to claim 6, which is characterized in that: algae mud and floating mud collecting channels are arranged on the lake bottom below the two blocking curtains.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114349177A (en) * | 2022-02-14 | 2022-04-15 | 江苏聚慧科技有限公司 | Ecological restoration device for coastal lake reed swashing wetland |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114349177A (en) * | 2022-02-14 | 2022-04-15 | 江苏聚慧科技有限公司 | Ecological restoration device for coastal lake reed swashing wetland |
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