Ecological restoration device for river channel

Abstract

The utility model provides an ecological restoration device for a river channel, and belongs to the technical field of ecological restoration of water pollution. The problem that in the prior art, an ecological restoration device is poor in water purification capacity is solved. The ecological restoration device for the river channel comprises a fixed frame and a floating table which is movably connected to the upper portion of the fixed frame and used for planting aquatic plants, the fixed frame is provided with four supporting columns, a plurality of bionic aquatic plants are arranged on the fixed frame and extend in the length direction of the supporting columns, and the floating table is movably connected to the upper portion of the fixed frame. The lower ends of the bionic aquatic plants extend to the lower end of the fixing frame and are fixed, connecting columns are arranged at the four corners of the floating table, and the four connecting columns of the floating table are inserted into the four supporting columns of the fixing frame correspondingly. And the connecting column can stretch up and down relative to the supporting column so that the floating table can float up and down along with the height of the water level of the river channel. The ecological restoration device has the advantage of being capable of improving the purification capacity of the ecological restoration device on water.

Description

Technical Field

[0001] The utility model belongs to the technical field of water pollution ecological restoration, and relates to an ecological restoration device for a river. Background Art

[0002] Currently, common methods of ecological restoration of water environments include phytoremediation and bioremediation. For example, a Chinese patent document discloses a new type of ecological floating bed that uses artificial aquatic plants to enhance the purification capacity of rivers (application number: 201220701835.6), which includes a support frame that can float on the water surface, and artificial aquatic plants on the surface of which aquatic microorganisms can attach are evenly fixed on the support frame, and a counterweight is fixed at the bottom of the artificial aquatic plants to keep them in a vertical state in the water.

[0003] The new ecological floating bed that uses artificial aquatic plants to enhance the river purification capacity has the following shortcomings during use: only artificial aquatic plants are fixed on the support frame of the new ecological floating bed, the aquatic plant species are single, and the purification capacity is poor. In addition, the artificial aquatic plants are only suspended in the upper part of the water body and lack the purification capacity for the lower part of the water body. In addition, when the water flow rate in the river channel is fast, the support frame will move along the river channel along the water flow away from the predetermined treatment water area, so that the microbial flora attached to the artificial aquatic plants will also move away from the predetermined water area with the support frame. The above factors make the new ecological floating bed have poor water purification capacity. Summary of the invention

[0004] The purpose of the utility model is to solve the above problems in the existing technology and propose an ecological restoration device for a river. The technical problem to be solved by the utility model is how to improve the purification capacity of the ecological restoration device for water bodies.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A river ecological restoration device, characterized in that it includes a fixed frame and a floating platform movably connected above the fixed frame and used for planting aquatic plants, the fixed frame has four supporting columns, a plurality of bionic water plants are arranged on the fixed frame, the bionic water plants are extended along the length direction of the supporting columns, and the lower ends of the bionic water plants extend to the lower end of the fixed frame and are fixed, connecting columns are arranged at the four corners of the floating platform, the four connecting columns of the floating platform are respectively inserted into the four supporting columns of the fixed frame, and the connecting columns can be extended and retracted up and down relative to the supporting columns so that the floating platform floats up and down with the water level of the river.

[0007] When in use, the fixed frame of the river channel ecological restoration device is fixed on the riverbed of the predetermined water area of ​​the river channel. The several bionic water plants on the fixed frame can provide effective implantation media for the microbial flora enriched in the water body, thereby maintaining and fixing the microbial flora within the treatment range, effectively solving the problem of the microbial flora being lost with the water flow. At the same time, the bionic water plants are extended along the length direction of the support column, and the lower end of the bionic water plants extends to the lower end of the fixed frame and is fixed, and effectively produces biofilm, which fixes the microbial flora in the water body and produces an efficient biofilm, so that the depth of the bionic water plants can reach the bottom of the river. The biofilm formed in this way can cover the vertical surface of the entire river channel, resulting in the improvement of the integration of the microbial flora in the water body and the water pollution. The contact time and area of ​​pollutants with the floating platform greatly improve the treatment effect of microorganisms on pollutants. In addition, the aquatic plants on the floating platform can float up and down with the rise and fall of the water level in the river and always float on the water surface. Pollutants are removed through the interception of aquatic plants on pollutants, the degradation of organic matter by the microbial film formed by the roots of aquatic plants and the absorption of nutrients by aquatic plants themselves. The aquatic plants and bionic water plants on the floating platform can completely cover the upper and lower parts of the predetermined treatment water area, enrich the varieties of aquatic plants and form three-dimensional planting. In addition, the fixed frame of the ecological restoration device for this river channel is fixed on the riverbed of the predetermined water area of ​​the river channel, which can maintain and fix the microbial flora within the treatment range, thereby greatly improving the purification capacity of the ecological restoration device for water bodies.

[0008] In the above-mentioned river ecological restoration device, the bottom of the connecting column has a lower limit step portion, and the top of the supporting column has an upper limit step portion for abutting against the lower limit step portion when the connecting column extends upward. The above structure allows the floating platform to float up and down with the rise and fall of the river water level and always float on the water surface, thereby preventing the aquatic plants on the floating platform from being flooded and maintaining the purification capacity, and preventing the floating platform from detaching from the fixed frame or drifting left and right, so that the microbial flora can be maintained and fixed within the treatment range, thereby greatly improving the purification capacity of the ecological restoration device for the water body.

[0009] In the above-mentioned ecological restoration device for a river channel, the bionic water grass is arranged on all four sides of the fixed frame, and the upper and lower ends of the bionic water grass are respectively fixedly connected to the fixed frame. By arranging the bionic water grass on all four sides of the fixed frame, more sufficient implantation media can be provided for the microbial flora in the enriched water body, thereby improving the treatment effect of microorganisms on pollutants. In addition, by fixing the upper and lower ends of the bionic water grass to the fixed frame, the bionic water grass can be prevented from drifting randomly with the water flow, thereby maintaining and fixing the microbial flora within the treatment range, thereby better preventing the microbial flora from being lost with the water flow, and greatly improving the purification ability of the ecological restoration device for the water body.

[0010] In the above-mentioned ecological restoration device for a river channel, some of the bionic water grasses are arranged at intervals along the width direction of the fixed frame inside the fixed frame to form a bionic water grass curtain, and the bionic water grass curtain has multiple ones and is arranged at intervals along the length direction of the fixed frame. By arranging the bionic water grasses at intervals along the width direction of the fixed frame inside the fixed frame to form a bionic water grass curtain, it is possible to further provide more sufficient implantation media for the microbial flora enriched in the water body, and the concentration of the microbial flora enriched on the surface of the bionic water grass increases exponentially, and the contact area with pollutants can be maximized, thereby enriching more microbial flora on the surface of the bionic water grass to form a high-performance biofilm. Such a high-performance biofilm can increase its contact time and area with pollutants in the water body, and the effect of treating and decomposing pollutants is more significant, thereby improving the treatment effect of microorganisms on pollutants.

[0011] In the above-mentioned river ecological restoration device, the fixed frame is in a rectangular shape, and a plurality of fixing belts are respectively arranged at the upper and lower ends of the fixed frame, and the fixing belts are arranged one by one in an upper and lower direction, and the upper and lower ends of the bionic water grass on the bionic water grass curtain are respectively fixed on two fixing belts arranged in an upper and lower direction in an upper and lower direction. The above-mentioned structure can prevent the bionic water grass curtain from drifting randomly with the water flow, thereby maintaining and fixing the microbial flora within the treatment range, thereby better preventing the microbial flora from being lost with the water flow.

[0012] In the above-mentioned river ecological restoration device, a plurality of planting baskets with top openings are arranged on the floating platform, and hollow portions are respectively arranged on the bottom wall and side walls of the planting baskets. The planting baskets are small in size and easy to assemble and disassemble, and can also play a role in fixing plant seedlings and resisting lodging. The bottom wall and side walls of the planting baskets are respectively provided with hollow portions, which are conducive to promoting the expansion of the roots of aquatic plants, so that the roots of aquatic plants can grow along the length direction of the connecting column, thereby allowing the roots of aquatic plants to better form a microbial film, and then better play a role in degrading organic matter.

[0013] Compared with the prior art, the advantages of the ecological restoration device for the river channel are as follows: the aquatic plants and bionic water grasses on the floating platform of the ecological restoration device for the river channel can completely cover the upper and lower parts of the predetermined treatment water area to form three-dimensional planting; the aquatic plants on the floating platform can float up and down with the rise and fall of the water level in the river channel and always float on the water surface; the pollutants are removed by the interception of pollutants by aquatic plants, the degradation of organic matter by the microbial film formed by the roots of aquatic plants and the absorption of nutrients by the aquatic plants themselves, thereby greatly improving the use effect of the ecological restoration device; the depth of the bionic water grass can reach the bottom of the river, so that the biofilm formed can cover the vertical surface of the entire river channel, resulting in an increase in the contact time and area between the microbial flora in the water body and the water pollutants, thereby greatly improving the treatment effect of the microorganisms on the pollutants; in addition, the fixed frame of the ecological restoration device for the river channel is fixed on the riverbed of the predetermined water area of ​​the river channel, which can maintain and fix the microbial flora within the treatment range, effectively solving the problem of the loss of the microbial flora with the water flow, thereby greatly improving the purification ability of the ecological restoration device for the water body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional structural diagram of the ecological restoration device used in this river channel.

[0015] Figure 2 This is a schematic diagram of the structure of the bionic water grass curtain, an ecological restoration device for the river.

[0016] Figure 3 It is a structural schematic diagram of the connection status of the supporting columns and connecting columns of the ecological restoration device for the river channel.

[0017] In the figure, 1, fixed frame; 1a, support column; 1a1, upper limit step; 2, floating platform; 3, bionic water grass; 4, connecting column; 4a, lower limit step; 5, bionic water grass curtain; 6, fixing belt; 7, planting basket; 7a, hollow part. DETAILED DESCRIPTION

[0018] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0019] An ecological restoration device for a river, referring to Figure 1-3, comprising a fixed frame 1 and a floating platform 2 movably connected to the top of the fixed frame 1, the floating platform 2 is provided with a plurality of planting baskets 7 with top openings for planting aquatic plants, the bottom wall and side walls of the planting baskets 7 are respectively provided with hollow portions 7a, the fixed frame 1 has four supporting columns 1a, the fixed frame 1 is provided with a plurality of bionic water plants 3, the bionic water plants 3 are extended along the length direction of the supporting columns 1a, and the lower ends of the bionic water plants 3 extend to the lower end of the fixed frame 1 and are fixed, the four corners of the floating platform 2 are provided with connecting columns 4, the four connecting columns 4 of the floating platform 2 are respectively inserted into the four supporting columns 1a of the fixed frame 1, and the connecting columns 4 can be extended and retracted up and down relative to the supporting columns 1a so that the floating platform 2 floats up and down with the height of the river water level. When in use, the fixed frame 1 can be fixed on the riverbed of a predetermined water area of ​​the river, and the floating platform 2 floats up and down with the water level of the river, so that the aquatic plants on the floating platform can float up and down with the rise and fall of the water level of the river and always float on the water surface. The ecological restoration device for the river can establish a biofilm that can degrade water pollutants, especially ammonia nitrogen, total phosphorus, and COD.

[0020] Specifically, refer to Figure 1-3 The bottom of the connecting column 4 has a lower limit step portion 4a, and the top of the supporting column 1a has an upper limit step portion 1a1 for abutting against the lower limit step portion 4a when the connecting column 4 extends upward.

[0021] More specifically, refer to Figure 1-3 The bionic water plants 3 are arranged on the four sides of the fixed frame 1, and the upper and lower ends of the bionic water plants 3 are respectively fixed to the fixed frame 1; some of the bionic water plants 3 are arranged at intervals inside the fixed frame 1 along the width direction of the fixed frame 1 to form a bionic water plant curtain 5, and the bionic water plant curtain 5 has a plurality of bionic water plant curtains and is arranged at intervals along the length direction of the fixed frame 1; the fixed frame 1 is in a rectangular shape, and the upper and lower ends of the fixed frame 1 are respectively provided with a plurality of fixing belts 6, and the fixing belts 6 are arranged one by one opposite to each other up and down, and the upper and lower ends of the bionic water plants 3 on the bionic water plant curtain are respectively fixed on two fixing belts 6 arranged opposite to each other up and down.

[0022] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A river ecological restoration device, characterized in that: The invention comprises a fixed frame (1) and a floating platform (2) movably connected to the fixed frame (1) and used for planting aquatic plants. The fixed frame (1) has four support columns (1a). A plurality of bionic water plants (3) are arranged on the fixed frame (1). The bionic water plants (3) are extended along the length direction of the support columns (1a). The lower ends of the bionic water plants (3) extend to the lower end of the fixed frame (1) and are fixed. The four corners of the floating platform (2) are provided with connecting columns (4). The four connecting columns (4) of the floating platform (2) are respectively inserted into the four supporting columns (1a) of the fixed frame (1). The connecting columns (4) can be extended and retracted up and down relative to the supporting columns (1a) so that the floating platform (2) floats up and down with the height of the river water level.

2. The river ecological restoration device according to claim 1, characterized in that: The bottom of the connecting column (4) has a lower limit step portion (4a), and the top of the supporting column (1a) has an upper limit step portion (1a1) for forming an abutment fit with the lower limit step portion (4a) when the connecting column (4) extends upward.

3. The river ecological restoration device according to claim 1, characterized in that: The bionic water plants (3) are arranged on the four sides of the fixed frame (1), and the upper and lower ends of the bionic water plants (3) are respectively fixedly connected to the fixed frame (1).

4. A river ecological restoration device according to claim 1, 2 or 3, characterized in that: Some of the bionic water grasses (3) are arranged at intervals along the width direction of the fixed frame (1) inside the fixed frame (1) to form a bionic water grass curtain (5); the bionic water grass curtain (5) has a plurality of bionic water grass curtains (5) and is arranged at intervals along the length direction of the fixed frame (1).

5. The river ecological restoration device according to claim 4, characterized in that: The fixing frame (1) is in the shape of a rectangular parallelepiped, and a plurality of fixing belts (6) are respectively arranged at the upper and lower ends of the fixing frame (1), and the fixing belts (6) are arranged one by one in an upper and lower direction opposite to each other, and the upper and lower ends of the bionic water grass (3) on the bionic water grass curtain (5) are respectively fixed on the two fixing belts (6) arranged in an upper and lower direction opposite to each other.

6. The river ecological restoration device according to claim 4, characterized in that: A plurality of planting baskets (7) with top openings are arranged on the floating platform (2), and hollow portions (7a) are respectively arranged on the bottom wall and the side wall of the planting baskets (7).

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