Drainage basin water environment treatment method and device

Abstract

The invention provides a drainage basin water environment treatment method and device so as to solve the problems of ecological restoration and endogenous treatment at the same time. The drainage basin water environment treatment method at least comprises the following steps that sludge is dug out of a riverbed and placed on a supporting frame, the supporting frame is arranged on a valley slope beside the riverbed, and the supporting frame extends from the valley slope to the riverbed; a plurality of air holes are formed in the sludge, and airing is conducted for a certain time; measuring the contents of different heavy metals in the sludge, selecting proper metal hyperaccumulator seeds or particles with the metal hyperaccumulator seeds, and sowing the seeds or the particles on the sludge; trimming or cleaning is conducted irregularly according to the plant growth condition, and after heavy metal in the sludge is detected to be qualified, the sludge is transferred for use or landscape plants are replaced for planting. Smelly sludge on a riverbed can be removed, the water environment of a drainage basin can be rapidly improved, long-distance sludge transfer is not needed, the environment of other areas cannot be affected, secondary damage to the environment cannot be caused, the supporting frame is arranged on the valley slope, and the sludge and the valley slope form an integrated structure.

Description

Technical Field

[0001] This application relates to the technical field of water treatment, and particularly to a method and device for river basin water environment governance. Background Art

[0002] The methods for river basin water environment governance mainly include source control and pollution interception, internal source treatment, water replenishment, ecological restoration, and landscape improvement. For polluted river basins, it is difficult to achieve good treatment effects only by source control and pollution interception. Water replenishment is greatly affected by the geographical environment, and there are no conditions for water replenishment in some areas. Therefore, internal source treatment and ecological restoration have become the key to river basin water environment governance. Internal source treatment mainly includes the treatment of odorous and black sludge and garbage treatment. Ecological restoration includes the construction of plant communities and animal communities. How to quickly and efficiently carry out ecological restoration and internal source control is a major problem.

[0003] The patent application with the Chinese patent publication number "CN106430598B" and the name "An ecological slope protection for black and odorous water body restoration and treatment" discloses an ecological slope protection for black and odorous water body restoration and treatment, mainly targeting point source and non-point source pollutants such as domestic sewage and initial rainwater flowing into the water body. The bank part of the river is a transitional zone between land and water, with significant edge effects. There is an active flow of substances, nutrients, and energy here, providing habitats for various organisms. Transforming the river bank into an ecological bank enables it to have comprehensive functions such as filtering surface runoff, improving water quality, and restoring the ecosystem, which plays an important role in enhancing the self-purification ability of the river channel. However, it cannot achieve internal source treatment. For example, if the original river basin has been polluted, resulting in a large amount of odorous and black sludge on the riverbed, the water environment of the river basin is difficult to improve in the short term without cleaning the odorous and black sludge.

[0004] The patent application with the Chinese patent publication number "CN111320279B" and the name "An ecological slope protection with high-efficiency water purification function" discloses an ecological slope protection with high-efficiency water purification function, which is a flexible mattress composed of multiple layers of composite materials, with an ecological filter pool inside, formed by grading fillers of different particle sizes, and constructing an ecological water treatment system mainly composed of microorganisms, plants, animals, fillers, etc. However, it cannot achieve internal source treatment. For example, if the original river basin has been polluted, resulting in a large amount of odorous and black sludge on the riverbed, the water environment of the river basin is difficult to improve in the short term without cleaning the odorous and black sludge. Summary of the Invention

[0005] This application provides a method and device for river basin water environment governance to solve the problems of ecological restoration and internal source treatment simultaneously.

[0006] According to the first aspect of this application, a method for river basin water environment governance is provided, which at least includes the following steps: Dig the silt out of the riverbed and place it on the support frame, which is set on the valley slope beside the riverbed. The support frame extends from the valley slope to the riverbed. Open a plurality of ventilation holes in the silt and dry it for a certain period of time. Measure the content of different heavy metals in the silt, select suitable seeds of metal hyperaccumulator plants or particles with seeds of metal hyperaccumulator plants, sow them on the silt, or transplant metal hyperaccumulator plants. Prune or clean the plants irregularly according to the growth of the plants. After the heavy metals in the silt are qualified, transfer and utilize the silt or replace the landscape plants for planting.

[0007] Compared with the prior art, the method for treating the water environment of the basin in this application has the following beneficial effects: It can remove the stinky silt on the riverbed, quickly improve the water environment of the basin, does not need to transfer the silt over a long distance, will not affect the environment of other areas, and will not cause secondary damage to the environment. The support frame is set on the valley slope, and the silt and the valley slope form an integral structure, which can block or filter the turbid rainwater in the early stage, avoid a large amount of impurities being involved in the river course of the basin by the rainwater, and use plants to remove heavy metals in the silt, so that the silt can be reasonably utilized, or replace the landscape plants to make the landscape of the basin more beautiful.

[0008] According to the second aspect of the present application, a device for treating the water environment of a basin is provided, including a first support frame, a first suspension column and a first suspension cable. The first support frame is provided with a first installation part and a first adjustment part. The first installation part is installed on the valley slope, and the first adjustment part is suspended on the first suspension column through the first suspension cable. Such a design makes more full use of the environmental resources of the basin, including sunlight resources and water resources, and will not cause excessive impact on the environment of other areas. The height of the first support frame can be adjusted through the first suspension cable, and it can be installed in different positions and adjusted for use according to the specific situation of different basins. The first support frame can plant plants to achieve the effect of purifying silt.

[0009] In an implementable embodiment, the first support frame includes a plurality of connecting plates, and the plurality of connecting plates are hinged end to end through hinge shafts so that adjacent connecting plates can rotate relative to each other. Such a design enables the same structure to adapt to different river channels and is also more convenient for adjusting the first support frame. Most riverbeds are in a certain curved shape, and the rotatable connecting plates can better adapt to this curved shape. The first support frame is made of steel and has a large mass, and can sink by relying on gravity, and can be more accurately inserted into the bottom of the riverbed to remove silt more thoroughly. In addition, the first support frame can bend a certain arc and can also better store water and block rain and sewage from directly entering the river channel.

[0010] In an implementable embodiment, support plates are provided on both sides of the connecting plate. The upper and lower ends of the support plates are located on both sides of the hinge shaft. When the upper ends of adjacent support plates abut against each other, the rotation of the connecting plate in the first direction is restricted. When the lower ends of adjacent support plates abut against each other, the rotation of the connecting plate in the second direction is restricted. With such a design, the movement of the first support frame is more convenient, and adjacent connecting plates will not bend to an excessive angle, affecting the use of the first support frame.

[0011] In an implementable embodiment, a breather pipe is provided above the connecting plate, and the breather pipe is installed on the connecting frame. Since the sludge has poor air permeability, it is not suitable for the planting of some plants. However, by providing the breather pipe, the air permeability of the sludge can be greatly increased, enabling a wider range of plants to be planted in the sludge and making the plants grow more lushly.

[0012] In an implementable embodiment, the first support frame is installed on the valley slope in a manner that can rotate relative to the valley slope. By adjusting the length of the first suspension cable, the height of the adjustment part can be adjusted. In this way, for some basins with large water level drops in different seasons, the height of the first support frame can be adjusted according to the water level limit in different seasons, reducing the impact on the first support frame when the water level rises and preventing the first support frame from being damaged.

[0013] In an implementable embodiment, the basin water environment treatment device further includes an insertion device and a sludge scraping bucket. The insertion device is provided with a mounting frame, the mounting frame is provided with a track, and the track uses rollers and / or rolling rollers to limit the support plate. The mounting frame can install rollers and / or rolling rollers, and the mounting frame is provided with a driving device or can drive the first support frame to move along the track by using an external driving structure. The sludge scraping bucket is provided with an open lower end face and a front end face, and the sludge scraping bucket is provided with a traction part and a hoisting part. The traction part is located at the front end of the sludge scraping bucket so that the sludge scraping bucket can be translated by dragging the traction part, and the hoisting part is located above the center of gravity of the sludge scraping bucket so that the sludge scraping bucket can be hoisted through the hoisting part. In this way, a crane can be used to hoist the sludge scraping bucket to the rear of the first support frame, then a winch is used to drag the sludge scraping bucket to move the sludge above the first support frame, and then the crane is used to move the sludge scraping bucket away, and the first support frame is suspended to a certain height by using the first suspension cable. The whole process only takes a few minutes, with high efficiency.

[0014] According to the third aspect of the present application, a basin water environment treatment device is provided, including a second support frame and a second floating block. The second support frame is provided with a second installation part and a second adjustment part. The second installation part is installed on the valley slope, and the second adjustment part is installed on the second floating block. The second floating block is designed with a hollow structure or made of a low-density material so that the second floating block can provide a certain buoyancy, and the second support frame can float on the water surface relying on the second floating block. Such a design can plant aquatic plants, and in areas with a relatively wide water surface area in some basins, the water surface area can be utilized to a greater extent.

[0015] According to the fourth aspect of the present application, a basin water environment treatment device is provided, which includes a plurality of first support frames and a plurality of second support frames. The installation height of the first support frame is higher than that of the second support frame. There is a certain gap between adjacent first support frames. The first support frames and the second support frames are installed in an alternating manner. The first support frame is provided with a first installation part and a first adjustment part. The first installation part is installed on the valley slope, and the first adjustment part is suspended on the first suspension column through a first suspension cable. The second support frame is provided with a second installation part and a second adjustment part. The second installation part is installed on the valley slope, and the second adjustment part is installed on the second floating block. The second floating block is designed to be hollow or made of low-density materials so that the second floating block can provide a certain buoyancy. The second support frame can float on the water surface relying on the second floating block. In this way, the space can be utilized more fully, and different types of plants can be planted, making the ecosystem more perfect.

[0016] According to the fifth aspect of the present application, a basin water environment treatment method is provided, which uses the above-mentioned basin water environment treatment device. First, use the insertion device to insert the first support frame under the riverbed silt; secondly, use a crane to lift the sludge scraper bucket to the rear of the first support frame, and use a winch to pull the sludge scraper bucket forward to scrape the sludge above the first support frame; thirdly, raise the first support frame to a certain height through the first suspension cable and dry it for a certain period of time; after that, select a suitable sowing or transplanting time, break up the lumped sludge, insert the air-permeable pipe after sowing or transplanting; finally, maintain the vegetation regularly or irregularly, and detect the heavy metal content in the sludge. After passing the detection, transfer and utilize the sludge or replace the landscape plants and plant them on the first support frame. In this way, the treatment of sludge can be directly completed without relying on equipment such as excavators, and the space resources of the water area environment are fully utilized, avoiding pollution to other environments and not using chemical agents, which is more environmentally friendly.

[0017] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present application, nor is it used to limit the scope of the present application. Other features of the present application will become easily understood through the following description. Brief Description of the Drawings

[0018] By reading the following detailed description with reference to the drawings, the above and other objects, features and advantages of the exemplary embodiments of the present application will become easily understood. In the drawings, several embodiments of the present application are shown in an exemplary rather than restrictive manner, where: In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

[0019] Figure 1 A three-dimensional schematic diagram showing the arc suspension state of the basin water environment treatment device according to the embodiment of the present application; Figure 2Shows a cross-sectional schematic diagram of the arc suspension state of the watershed water environment treatment device according to an embodiment of the present application; Figure 3 Shows a cross-sectional schematic diagram of the linear suspension state of the watershed water environment treatment device according to an embodiment of the present application; Figure 4 Shows an installation schematic diagram of the breather pipe and the connecting frame of the watershed water environment treatment device according to an embodiment of the present application; Figure 5 Shows a three-dimensional schematic diagram of the relative position of the insertion device and the sludge scraper bucket of the watershed water environment treatment device according to an embodiment of the present application; Figure 6 Shows a schematic diagram of the insertion device of the watershed water environment treatment device according to an embodiment of the present application; Figure 7 Shows a schematic diagram of the insertion device of the watershed water environment treatment device according to an embodiment of the present application with the right outer plate removed; Figure 8 Shows a three-dimensional schematic diagram of the sludge scraper bucket of the watershed water environment treatment device according to an embodiment of the present application; Figure 9 Shows a schematic diagram of the installation state of the second floating block of the watershed water environment treatment device according to Embodiment 3 of the present application; Figure 10 Shows a schematic diagram of the separated state of the second floating block of the watershed water environment treatment device according to Embodiment 3 of the present application; Figure 11 Shows a schematic diagram of the horizontal floating state of the watershed water environment treatment device according to Embodiment 3 of the present application; Figure 12 Shows a three-dimensional schematic diagram of the staggered arrangement of the first support frame and the second support frame of the watershed water environment treatment device according to Embodiment 4 of the present application; Figure 13 Shows a cross-sectional schematic diagram of the insertion state of the watershed water environment treatment device according to Embodiment 5 of the present application; Figure 14 Shows a cross-sectional schematic diagram of the sludge scraping state of the watershed water environment treatment device according to Embodiment 5 of the present application; Figure 15 Shows a cross-sectional schematic diagram of the lifting state of the watershed water environment treatment device according to Embodiment 5 of the present application; Figure 16 Shows a cross-sectional schematic diagram of the suspension state of the watershed water environment treatment device according to Embodiment 5 of the present application; Figure 17 Shows a cross-sectional schematic diagram after seeding of the watershed water environment treatment device according to Embodiment 5 of the present application.

[0020] Explanation of the reference numerals in the figure: 1. Support frame; 2. Insertion device; 3. Valley slope; 4. Riverbed; 5. Valley shoulder; 6. First suspension column; 7. First suspension cable; 8. Traction rope; 9. Mud scraper bucket; 10. Second support frame; 11. First support frame; 12. Connecting plate; 13. Support plate; 14. First installation part; 15. First adjustment part; 16. Installation bracket; 17. Hinge shaft; 18. Vent pipe; 19. Connecting frame; 20. Air hole; 21. Installation frame; 22. Roller; 23. Rolling roller; 24. First shaft; 25. Second shaft; 26. Driving wheel; 27. Limit groove; 40. Silt; 91. Traction part; 92. Lifting part; 93. Wing plate; 94. Top plate; 95. Tail plate; 101. Second installation part; 102. Second adjustment part; 103. Second floating block; 104. First through hole; 105. Second through hole; 211. Left outer plate; 212. Right outer plate; 213. Left inner plate; 214. Right inner plate. Detailed implementation manners

[0021] To make the objectives, features, and advantages of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0022] Embodiment 1: As Figure 1 and Figure 2 shown, the method for treating the water environment of the basin in this embodiment mainly considers the removal of heavy metals. For the silt 40 without heavy metals, the silt 40 can be directly transferred and utilized without planting metal hyperaccumulator plants. The method for treating the water environment of the basin at least includes the following steps: using an excavator to dig out the silt 40 with heavy metals from the riverbed 4 and place it on the support frame 1. The support frame 1 is arranged on the valley slope 3 beside the riverbed 4, which can make full use of the space of the basin. The support frame 1 extends from the valley slope 3 towards the riverbed 4; multiple ventilation holes are opened in the silt 40, and a stick can be used to pierce the ventilation holes, so that it can dry faster. After drying for a certain period of time, specifically depending on the weather conditions, if there are many microorganisms and it smells bad in the silt 40, the silt 40 can be turned over and dried multiple times to ensure the removal of a large number of germs; measure the content of different heavy metals in the silt 40, select suitable metal hyperaccumulator plant seeds or particles with metal hyperaccumulator plant seeds, sow them on the silt 40, or transplant metal hyperaccumulator plants; trim or clean them irregularly according to the growth of the plants. After the heavy metals in the silt 40 are detected to be qualified, the silt 40 is transferred and utilized or the landscape plants are replaced for planting.

[0023] Hyperaccumulator plants, also known as hyperaccumulating plants, can repair the ecological environment. Metal hyperaccumulator plants that can remove heavy metals from the soil mainly include giant reed, nephrolepis, indian mustard, sedum alfredii, pteris vittata, and solanum nigrum, etc. These plants help repair contaminated soil by adsorbing and accumulating heavy metals. After hyperaccumulator plants grow on heavy metal-contaminated land, the disposal methods for them must be considered. There are various treatment methods, and the commonly used methods include incineration, ashing, pyrolysis, gasification, hydrothermal treatment, and liquid-phase extraction, etc. Different plants can absorb different metals. For example, pteris vittata can accumulate arsenic, and sedum alfredii is a hyperaccumulator for zinc, cadmium, and lead. Therefore, the heavy metals in the sludge 40 can be detected first, and appropriate plants can be selected according to the heavy metals. Transferring the sludge 40 with heavy metals to other places will also have an impact on the environment of other places. Therefore, only separating the heavy metals is the best choice. Plants absorb and separate heavy metals, which is energy-saving and environmentally friendly. There is sufficient space in the river channels of the basin. Therefore, this method can comprehensively utilize various resources.

[0024] Example 2: As Figure 1 and Figure 2 shown, the basin water environment treatment device of this embodiment can be used in Embodiment 1 and can also treat the sludge 40 that does not exceed the heavy metal standard, such as the black and stinky sludge 40. The basin water environment treatment device includes a first support frame 11, a first suspension column 6, and a first suspension cable 7. The first support frame 11 is provided with a first installation part 14 and a first adjustment part 15. The first installation part 14 is installed on the valley slope 3, and the first adjustment part 15 is suspended on the first suspension column 6 through the first suspension cable 7. An installation bracket 16 is provided on the valley slope 3, and the first installation part 14 is installed on the installation bracket 16. The first suspension column 6 can be arranged on the valley shoulder 5. To ensure the suspension load of the first suspension column 6, a towing rope 8 can be provided at the upper end of the first suspension column 6. The first suspension column 6 can be fabricated and buried using the technology of an electric pole, that is, a reinforced concrete structure. The first suspension cable 7 is a steel cable. The first support frame 11 is made of steel and undergoes anti-rust treatment, and can be galvanized, phosphated, painted, or provided with a plastic isolation layer.

[0025] As Figure 1 shown, in one embodiment, the first support frame 11 includes a plurality of connecting plates 12. The plurality of connecting plates 12 are articulated at the head and tail through a hinge shaft 17 so that adjacent connecting plates 12 can rotate relative to each other. As Figure 2 shown, by adjusting the length of the first suspension cable 7, the first support frame 11 can form an arc-shaped structure. In this way, foreign objects carried by rainwater during heavy rain can be blocked or absorbed by the vegetation on the first support frame 11, and the concave structure during light rain can have a certain water storage function. As Figure 3 shown, by adjusting the length of the first suspension cable 7, the first support frame 11 can form a planar structure, which is more convenient for planting.

[0026] As Figure 1 shown, in one embodiment, support plates 13 are provided on both sides of the connecting plate 12 to form a space for accommodating the silt 40. The support plates 13 are perpendicular to the connecting plate 12. The upper and lower ends of the support plates 13 are located on both sides of the hinge shaft 17. When the upper ends of adjacent support plates 13 abut against each other, the rotation of the connecting plate 12 in the first direction is restricted. When the lower ends of adjacent support plates 13 abut against each other, the rotation of the connecting plate 12 in the second direction is restricted.

[0027] As Figure 3 and Figure 4 shown, in one embodiment, a breather pipe 18 is provided above the connecting plate 12. The breather pipe 18 is installed on the connecting frame 19. A plurality of air holes 20 are provided on the side wall of the breather pipe 18. The lower end of the breather pipe 18 can be designed to have a sharp structure to facilitate insertion into the silt 40, so that the silt 40 can increase the oxygen content and facilitate the growth of plants.

[0028] As Figure 2 and Figure 3 shown, in one embodiment, the first support frame 11 is installed on the valley slope 3 in a manner that can rotate relative to the valley slope 3. By adjusting the length of the first suspension cable 7, the height of the adjusting part can be adjusted. The connecting plate 12 can be arranged in an arc or in a straight line.

[0029] As Figure 5 、 Figure 6 and Figure 7 shown, in one embodiment, the basin water environment treatment device further includes an inserting device 2 and a sludge bucket 9. The inserting device 2 is provided with a mounting frame 21. The mounting frame 21 is provided with a track. The track uses rollers 22 and / or rolling rollers 23 to limit the support plate 13 so that the first support frame 11 can move or rotate along the track. The track can be a straight track or an arc-shaped track. The mounting frame 21 can mount the rollers 22 and / or rolling rollers 23. The mounting frame 21 is provided with a driving device or can drive the first support frame 11 to move along the track by using an external driving structure. The upper end of the mounting frame 21 is provided with a first shaft 24 and a second shaft 25. The sizes and spacings of the first shaft 24 and the second shaft 25 are the same as those of the two shafts on the bucket of the excavator, so that the inserting device 2 can be directly installed on the swing arm of the excavator, thus simplifying the construction equipment. To facilitate insertion into the silt 40, the connecting plate 12 and the support plate 13 at the head are set at a relatively sharp angle so as to reduce the resistance during insertion.

[0030] As Figure 5 and Figure 8As shown, the sludge scraper bucket 9 is provided with an open lower end face and a front end face. The sludge scraper bucket 9 is provided with a traction part 91 and a hoisting part 92. The traction part 91 is located at the front end of the sludge scraper bucket 9 so that the sludge scraper bucket 9 can be translated by dragging the traction part 91. The hoisting part 92 is located above the center of gravity of the sludge scraper bucket 9 so that the sludge scraper bucket 9 can be hoisted through the hoisting part 92. The lower end of the sludge scraper bucket 9 is flat. Wing plates 93 are provided at both left and right ends of the sludge scraper bucket 9. A tail plate 95 is provided at the rear end of the sludge scraper bucket 9. A top plate 94 is provided at the upper end of the sludge scraper bucket 9. The hoisting part 92 is located on the top plate 94, and the traction part 91 is located on the wing plates 93. The distance between the two side wing plates 93 gradually increases from the rear to the front. To ensure the strength of the wing plates 93, at the adjacent position of the top plate 94 and the wing plates 93, a partial forward extension forms an L-shaped cross-section structure, so that the wing plates 93 have higher rigidity and are not easily deformed.

[0031] As Figure 6 and Figure 7 shown, in an embodiment, the mounting frame 21 is provided with a driving wheel 26. The driving wheel 26 is driven by a motor or a hydraulic motor. The driving wheel 26 is coaxially arranged with one or two rollers 22. The mounting frame 21 includes a left outer plate 211, a right outer plate 212, a left inner plate 213 and a right inner plate 214. The rolling rollers 23, the first shaft 24 and the second shaft 25 are arranged between the left outer plate 211 and the right outer plate 212. The rollers 22 are arranged between the left outer plate 211 and the left inner plate 213 or between the right outer plate 212 and the right inner plate 214. The rollers 22 and the rolling rollers 23 can be arranged alternately. Both the rollers 22 and the rolling rollers 23 can guide the support frame 1 to move or rotate and can be used interchangeably. Limiting grooves 27 can be provided on both the rollers 22 and the rolling rollers 23 to limit the position of the support plate 13. To ensure the smooth movement or rotation of the support plate 13 along the track, the width of each position of the support plate 13 is the same.

[0032] As Figure 6 and Figure 7 shown, in an embodiment, the track is an arc-shaped track. The connecting plate 12 and the support plates 13 on both sides of the connecting plate 12 are both designed to be arc-shaped. The corresponding positions of the left outer plate 211, the right outer plate 212, the left inner plate 213 and the right inner plate 214 are also designed to be arc-shaped. The support plate 13 can move or rotate along the arc on the track, which is more convenient for the first support frame 11 to be inserted under the sludge 40 in the riverbed 4. The valley slope 3 can also be artificially constructed to form the same arc, so that the sludge 40 can be cleaned more thoroughly.

[0033] Example 3: As Figure 9 , Figure 10 and Figure 11As shown in the figure, the device for treating the water environment of the basin includes a second support frame 10 and a second floating block 103. The second support frame 10 is provided with a second installation part 101 and a second adjustment part 102. The second installation part 101 is installed on the valley slope 3, and the second adjustment part 102 is installed on the second floating block 103. The second floating block 103 is designed with a hollow structure or made of low-density materials so that the second floating block 103 can provide a certain buoyancy. The second support frame 10 can float on the water surface relying on the second floating block 103. Emergent plants, such as calamus, arundo donax var. versicolor or vetiveria zizanioides, are planted on the second floating block 103. The low-density materials can be polymer materials such as foam or natural materials such as wood. The second support frame 10 can also be made of plastic. The structure of the second support frame 10 can adopt the same structure as that of the first support frame 11, and only the installation position of the second floating block 103 needs to be reserved. The second support frame 10 includes a plurality of connecting plates 12. The plurality of connecting plates 12 are hinged at the head and tail by a hinge shaft 17 so that adjacent connecting plates 12 can rotate relative to each other. Support plates 13 are arranged on both sides of the connecting plate 12. The support plates 13 are perpendicular to the connecting plate 12. The upper and lower ends of the support plates 13 are located on both sides of the hinge shaft 17. When the upper ends of adjacent support plates 13 abut against each other, the rotation of the connecting plate 12 along the first direction is restricted. When the lower ends of adjacent support plates 13 abut against each other, the rotation of the connecting plate 12 along the second direction is restricted. The connecting plate 12 is provided with a plurality of first through holes 104, and the second floating block 103 is provided with a plurality of second through holes 105. The positions of the first through holes 104 and the second through holes 105 are correspondingly arranged, so that the roots of the emergent plants can pass through the first through holes 104 and the second through holes 105 to reach the water.

[0034] The second support frame 10 can work with the insertion device 2 and the sludge scraper 9 in Embodiment 2. Therefore, the connecting plate 12 and the support plate 13 are designed in an arc shape. In addition, the second floating block 103 can be disassembled. When the second support frame 10 is inserted into the bottom of the sludge 40 by using the insertion device 2, the second floating block 103 can be disassembled first. After the sludge 40 is collected, the second support frame 10 is lifted by a crane, and then the second floating block 103 is installed and placed on the water surface again, and it can rise and fall with the water surface. The second installation part 101 is hinged on the valley slope 3 so that the second support frame 10 can rotate within a certain range.

[0035] Embodiment 4: As Figure 12As shown, for the basin water environment treatment device, a plurality of support frames 1 are provided. The support frame 1 includes a first support frame 11 and a second support frame 10. The first support frame 11 can use the structure in Embodiment 2, and the second support frame 10 can use the structure in Embodiment 3. The installation height of the first support frame 11 is higher than that of the second support frame 10. There is a certain gap between adjacent first support frames 11. The first support frame 11 and the second support frame 10 are installed alternately. The first support frame 11 is provided with a first installation part 14 and a first adjustment part 15. The first installation part 14 is installed on the valley slope 3, and the first adjustment part 15 is suspended on the first suspension column 6 through the first suspension cable 7. The second support frame 10 is provided with a second installation part 101 and a second adjustment part 102. The second installation part 101 is installed on the valley slope 3, and the second adjustment part 102 is installed on the second floating block 103. The second floating block 103 is designed with a hollow structure or made of low-density materials so that the second floating block 103 can provide a certain buoyancy. The second support frame 10 can float on the water surface relying on the second floating block 103. The main difference between the first support frame 11 and the plurality of second support frames 10 is that the second support frame 10 forms a support relying on the second floating block 103, and the first support frame 11 forms a supporting effect relying on the first suspension cable 7.

[0036] Embodiment 5: For the basin water environment treatment method, use the basin water environment treatment device in Embodiment 2 or 4. As Figure 13 shown, first, use the insertion device 2 to insert the first support frame 11 under the silt 40 of the riverbed 4. The insertion device 2 is designed with reference to the bucket of an excavator and can be directly installed on the swing arm of the excavator, or can be designed with reference to the clamping structure of other construction machinery with a swing arm similar to the excavator. Driven by the driving device, the insertion device 2 inserts the first support frame 11 into the silt 40; as Figure 14 shown, second, use a crane to fix the sludge scraper 9 to the lifting part 92 with a steel cable and hoist the sludge scraper 9 to the rear of the first support frame 11, and use a winch to pull the sludge scraper 9 forward with a steel cable fixed to the traction part 91 to scrape the silt 40 above the first support frame 11; as Figure 15 and Figure 16 shown, third, raise the first support frame 11 to a certain height through the first suspension cable 7 and dry it for a certain period of time; as Figure 17 shown, after that, select a suitable sowing or transplanting time, such as March, break up the clumped silt 40, and insert a plurality of air permeable pipes 18 synchronously through the connecting frame 19 after sowing or transplanting; finally, maintain the vegetation regularly or irregularly, and detect the heavy metal content in the silt 40. After passing the detection, transfer and utilize the silt 40 or replace the landscape plants and plant them on the first support frame 11.

[0037] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this application can be executed in parallel, sequentially, or in different orders, as long as the desired results of the technical solution of this application can be achieved, and no limitations are imposed herein.

[0038] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of this application, "a plurality" means two or more, unless otherwise specifically defined. Up, down, left, right, front, and back are relative positions and can be adjusted according to specific circumstances during actual use.

[0039] As described above, the above is only the specific implementation manner of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed by this application can easily think of changes or substitutions, which should all be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claimed rights.

Claims

1. Method for treating water environment in a river basin, characterized in that, At least include the following steps: Dig out the silt (40) from the riverbed (4) and place it on the support frame (1), where the support frame (1) is arranged on the valley slope (3) beside the riverbed (4), and the support frame (1) extends from the valley slope (3) towards the riverbed (4); Open a plurality of air holes (20) in the silt (40) on the support frame (1) and dry it for a certain period of time; Measure the contents of different heavy metals in the silt (40) on the support frame (1), select suitable metal hyperaccumulator plant seeds or particles with metal hyperaccumulator plant seeds, sow them on the silt (40), or transplant metal hyperaccumulator plants; Prune or clean it irregularly according to the growth of the plants. After the heavy metals in the silt (40) are detected to be qualified, transfer and utilize the silt (40) or replace the landscape plants for planting.

2. Basin water environment treatment device, characterized in that It includes a first support frame (11), a first suspension column (6) and a first suspension cable (7). The first support frame (11) is provided with a first installation part (14) and a first adjustment part (15). The first installation part (14) is installed on the valley slope (3), and the first adjustment part (15) is suspended on the first suspension column (6) through the first suspension cable (7).

3. The basin water environment treatment device according to claim 2, characterized in that, The first support frame (11) includes a plurality of connecting plates (12), and the plurality of connecting plates (12) are hinged end to end through a hinge shaft (17) so that adjacent connecting plates (12) can rotate relative to each other.

4. The basin water environment treatment device according to claim 3, characterized in that, Support plates (13) are arranged on both sides of the connecting plate (12). The upper and lower ends of the support plates (13) are located on both sides of the hinge shaft (17). When the upper ends of adjacent support plates (13) abut, the rotation of the connecting plate (12) in the first direction is restricted. When the lower ends of adjacent support plates (13) abut, the rotation of the connecting plate (12) in the second direction is restricted.

5. The basin water environment treatment device according to claim 4, characterized in that, A ventilation pipe (18) is arranged above the connecting plate (12), and the ventilation pipe (18) is installed on the connecting frame (19).

6. The basin water environment treatment device according to claim 5, characterized in that, The first support frame (11) is installed on the valley slope (3) in a manner that can rotate relative to the valley slope (3). By adjusting the length of the first suspension cable (7), the height of the adjustment part can be adjusted.

7. The basin water environment treatment device according to claim 5, characterized in that, The basin water environment treatment device further includes an insertion device (2) and a sludge scraper bucket (9). The insertion device (2) is provided with a mounting frame (21). The mounting frame (21) is provided with a track. The track uses rollers (22) and / or rolling rollers (23) to limit the support plate (13). The mounting frame (21) can mount the rollers (22) and / or the rolling rollers (23). The mounting frame (21) is provided with a driving device or can drive the first support frame (11) to move along the track by using an external driving structure. The sludge scraper bucket (9) is provided with an open lower end surface and a front end surface. The sludge scraper bucket (9) is provided with a traction part (91) and a hoisting part (92). The traction part (91) is located at the front end of the sludge scraper bucket (9). By dragging the traction part (91), the sludge scraper bucket (9) can be translated. The hoisting part (92) is located above the center of gravity of the sludge scraper bucket (9), so that the sludge scraper bucket (9) can be hoisted through the hoisting part (92).

8. Method for treating water environment in a river basin, characterized in that, Using the basin water environment treatment device according to claim 7, First, use the insertion device (2) to insert the first support frame (11) under the sludge (40) of the riverbed (4); Second, use a crane to hoist the sludge scraper bucket (9) behind the first support frame (11), and use a winch to pull the sludge scraper bucket (9) forward to scrape the sludge (40) above the first support frame (11); Third, raise the first support frame (11) to a certain height through the first suspension cable (7) and dry it for a certain period of time; After that, select a suitable sowing or transplanting time, break up the caked sludge (40), insert the air permeable pipe (18) after sowing or transplanting; Finally, maintain the vegetation regularly or irregularly, detect the heavy metal content in the sludge (40), and after passing the detection, transfer and utilize the sludge (40) or replace the landscape plants and plant them on the first support frame (11).

9. Basin water environment treatment device, characterized in that, It includes a second support frame (10) and a second floating block (103). The second support frame (10) is provided with a second installation part (101) and a second adjustment part (102). The second installation part (101) is installed on the valley slope (3). The second adjustment part (102) is installed on the second floating block (103). The second floating block (103) is designed with a hollow structure or made of a low-density material, so that the second floating block (103) can provide a certain buoyancy. The second support frame (10) can float on the water surface relying on the second floating block (103).

10. Watershed water environment treatment device, characterized in that, It includes a plurality of first support frames (11) and a plurality of second support frames (10). The installation height of the first support frame (11) is higher than that of the second support frame (10). There is a certain gap between adjacent first support frames (11). The first support frame (11) and the second support frame (10) are installed alternately. The first support frame (11) is provided with a first installation part (14) and a first adjustment part (15). The first installation part (14) is installed on the valley slope (3), and the first adjustment part (15) is suspended on the first suspension column (6) through the first suspension cable (7). The second support frame (10) is provided with a second installation part (101) and a second adjustment part (102). The second installation part (101) is installed on the valley slope (3), and the second adjustment part (102) is installed on the second floating block (103). The second floating block (103) is designed with a hollow structure or made of a low-density material, so that the second floating block (103) can provide a certain buoyancy, and the second support frame (10) can float on the water relying on the second floating block (103).

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