A device and method for repairing heavy metal pollution of water ecological environment of a river basin

Abstract

The application provides a device and method for repairing heavy metal pollution in a water ecological environment of a river basin, the device comprising a floating base, a nutrient substrate layer arranged in the floating base, and ecological plants planted in the nutrient substrate layer; the floating base adopts an assembled structure, and comprises an embedded floating module for arranging the nutrient substrate layer, an external floating module arranged outside the embedded floating module and used for protecting the embedded floating module, and a water diversion module used for diverting water to the nutrient substrate layer; the method is used for repairing water in a water ecological environment area of the river basin by using the device; the application has a reasonable overall structure design, and has the advantages of easy preparation, easy transportation and easy construction by using the assembled structure; and the device can realize the function of an artificial wetland, and can avoid the problems of additional land occupation and complicated construction of a traditional artificial wetland.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of river basin water ecological environment restoration, in particular to a device and method for restoring heavy metal pollution in river basin water ecological environment. BACKGROUND

[0002] Water is the basis of human habitat and the source of life. When people choose a place to settle, water environment has become an indispensable necessary condition. Since the 1980s, the water quality of the nearshore water in Shanghai has been declining continuously, showing typical characteristics of water quality type water shortage city. Under the comprehensive action of factors such as population growth, economic development, climate change and unreasonable allocation of water resources, water shortage and drought have affected 40% of the global population, and pose a real threat to economic growth, poverty reduction programs, health and well-being, and environmental protection. Strengthening water environment management is the key to alleviating the bottleneck of water resource constraints and realizing the sustainable use of water resources.

[0003] For river basin water ecological environment restoration, due to the vast area of river basin water ecological environment, it is difficult to manage in practice. As an ecological sewage treatment technology, the artificial wetland has the characteristics of low operation cost, good treatment effect, ecological restoration function and operation ecological landscape compared with traditional sewage biochemical treatment technology.

[0004] The traditional artificial wetland is a ground similar to a marsh that is artificially constructed and controlled, and sewage and sludge are controlled to be distributed on the artificial wetland. The traditional artificial wetland has the defects of extra land occupation and complicated construction. If a prefabricated structure is used to construct an 'artificial wetland' floating on the water area to replace the traditional artificial wetland, not only the water area can be restored, but also the steps of constructing the wetland in the early stage are reduced. SUMMARY

[0005] The present application aims at the defects of the prior art, and provides a device and method for restoring heavy metal pollution in river basin water ecological environment.

[0006] The technical scheme of the present application is as follows: a device for restoring heavy metal pollution in river basin water ecological environment, comprising a floating base, a nutrient substrate layer arranged in the floating base, and ecological plants planted in the nutrient substrate layer; the floating base adopts a prefabricated structure, and comprises an embedded floating module for arranging the nutrient substrate layer, an external floating module arranged outside the embedded floating module and used for protecting the embedded floating module, and a water guiding module used for guiding water to the nutrient substrate layer.

[0007] The built-in floating module comprises a mounting frame provided with assembly grooves, an assembly plate group mounted in the assembly grooves one by one, and a built-in partition plate group capable of being arranged on the mounting frame;

[0008] The outer floating module comprises an outer plate group capable of being connected with the outermost mounting frame, and a floating body connected with the outer plate group;

[0009] The mounting frame comprises a plurality of mounting rods, the assembly plate group comprises a plurality of assembly bottom plates, one side of the assembly bottom plate is connected with the mounting rod, and adjacent two mounting rods can be clamped;

[0010] The built-in partition plate group comprises a plurality of built-in baffles arranged on the mounting rod one by one;

[0011] The outer plate group comprises a plurality of outer baffles connected with the outermost mounting rod one by one; the floating body comprises a plurality of sub-floating bodies connected with the outer baffles one by one;

[0012] The outer baffles and the built-in baffles form a buffer cavity; the water diversion module comprises a source module arranged on the outer sidewall of the outer baffle, and a pipeline assembly for connecting the source module with the nutrient substrate layer.

[0013] Further, the mounting rod comprises a mounting rod body and a clamping groove arranged on the sidewall of the mounting rod body for mounting the assembly bottom plate; the upper end of the mounting rod body is provided with a mounting groove for mounting the built-in baffle.

[0014] Description: The clamping groove can not only realize stable connection of the assembly bottom plate and the mounting rod body, but also has better sealing performance; similarly, the mounting groove can realize stable connection and sealing performance of the built-in baffle and the mounting rod body; in actual application, further reinforcement can be realized by matching screws, and further sealing treatment can be realized by matching sealing strips or sealing glue.

[0015] Further, a plurality of reinforcing assemblies for reinforcing the built-in baffles are arranged on the mounting rod; the reinforcing assembly comprises two clamping rods arranged on the mounting rod and located on both sides of the mounting groove, a clamping block movably sleeved on the clamping rod, and a reinforcing nut threadedly connected on the clamping rod and located outside the clamping block.

[0016] Description: The reinforcing assembly can further reinforce the built-in baffles, thereby ensuring the stability of the device.

[0017] Further, the assembly bottom plate is a folding assembly plate made of plastic material;

[0018] The folding assembly plate comprises a plurality of folding plates connected in a matrix, and a clamping assembly for connecting two adjacent folding plates; the clamping assembly comprises a surplus strip for connecting one side of two adjacent folding plates, and a clamping module for connecting the other side of two adjacent folding plates; the clamping module comprises a clamping groove arranged on one of the folding plates, and a clamping block arranged on the other folding plate and clamped with the clamping groove; the surplus strip, the folding plate, and the clamping block are in an integrated structure.

[0019] Description: The folding assembly plate has the advantage of convenient transportation, and is more conducive to popularization and use.

[0020] Further, the folding assembly plate further comprises a floating box arranged at the lower end of the folding plate; the floating box and the folding plate in the middle position are in an integrated structure.

[0021] Description: The use of the floating box can further improve the buoyancy of the overall device, can form a 'double insurance' of device floating with the floating body, and can effectively avoid the problem of sinking into the water caused by external factors, for example: the overall device structure can withstand greater wind force, even if the floating body is damaged or falls off due to external factors, the device can float on the water relying on the buoyancy of the floating box, providing a longer remediation time for subsequent maintenance.

[0022] Further, the built-in floating module further comprises a support assembly for supporting the assembly bottom plate.

[0023] Description: The use of the support assembly can provide better support for the assembly bottom plate. In actual application, if the floating box is used, a slot for the support assembly to pass through needs to be provided on the floating box.

[0024] Further, the support assembly comprises a plurality of support rods connected in sequence; the support rod comprises a support main rod with a folding groove arranged on the side wall, and a support auxiliary rod arranged on the support main rod through a pin shaft and capable of being placed in the folding groove; the support main rod and the support auxiliary rod form a I-shaped structure.

[0025] Description: The use of the assembly structure is more conducive to transportation and storage.

[0026] Further, one end of the support main rod is provided with an insertion block, and the other end is provided with an insertion slot; two adjacent support main rods are movably connected through the insertion block and the insertion slot.

[0027] Description: The use of the movable connection has the advantage of convenient disassembly / assembly, and in actual application, the connection can be further reinforced by screws.

[0028] Further, the support auxiliary rod adopts a telescopic structure.

[0029] Further, the repair method of the repair device is characterized in that it comprises:

[0030] S1, assembling the repair device

[0031] Assembling the repair device according to the water ecological environment region to be repaired: designing the appropriate size according to the area of the water region to be repaired, determining the actual size of the required floating base according to the size, and then determining the number of required installation rods, assembled bottom plates, built-in baffles, external baffles and sub-floating bodies, then assembling, after the assembly is completed, matching the water diversion module, constructing the floating base, then filling the nutrient substrate to construct the nutrient substrate layer, and then planting ecological plants on the nutrient substrate layer to complete the assembly of the repair device;

[0032] S2, repairing

[0033] Repairing the water region in the water ecological environment region by using the assembled repair device.

[0034] Compared with the prior art, the beneficial effects of the present application are: the overall structure design is reasonable, the assembled structure has the advantages of easy preparation, easy transportation and easy construction; and the device can realize the function of 'artificial wetland', and can avoid the problems of traditional artificial wetland, such as additional land occupation and complicated construction, can effectively repair and treat heavy metals in the water ecological environment according to the actual area of the water region, is convenient to use, has low maintenance cost in later period, and is suitable for large-scale promotion. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 is a structural section view of the present application;

[0036] Figure 2 is a partial structure schematic view of the present application;

[0037] Figure 3 is a partial structure explosion view of the present application embodiment 1, 2, 3, 4;

[0038] Figure 4 is a structure schematic view of the installation rod of the present application embodiment 1;

[0039] Figure 5 is a structure explosion view of the installation rod of the present application embodiment 2;

[0040] Figure 6 is a structure schematic view of the folding assembly plate of the present application embodiment 3;

[0041] Figure 7 is a partial structure schematic view of the folding plate of the present application embodiment 3, 4, 5;

[0042] Figure 8is a structural schematic diagram of the folding assembly plate of the embodiment 4 and 5 of the present application;

[0043] Figure 9 is an exploded view of the partial structure of the embodiment 5 of the present application;

[0044] Figure 10 is a connection structure schematic diagram of the folding assembly plate and the support assembly of the embodiment 5 of the present application;

[0045] Figure 11 is a partial structure schematic diagram of the support assembly of the embodiment 5 of the present application;

[0046] Figure 12 is a water flow path diagram of the application example simulating'surface constructed wetland';

[0047] Figure 13 is a water flow path diagram of the application example simulating 'horizontal subsurface flow constructed wetland';

[0048] Figure 14 is a water flow path diagram of the application example simulating'vertical subsurface flow constructed wetland';

[0049] Wherein, 1-floater base, 2-nutrient substrate layer, 3-ecological plant, 4-built-in floating module, 41-mounting frame, 410-assembly slot, 411-mounting rod, 412-mounting rod body, 413-clamping groove, 414-mounting slot, 415-reinforcing assembly, 416-clamping rod, 417-clamping block, 418-reinforcing nut, 42-assembly plate group, 421-assembly bottom plate, 43-built-in partition plate group, 431-built-in baffle, 44-support assembly, 440-folding slot, 441-main support rod, 4411-insert block, 4412-insert slot, 442-secondary support rod, 5-external floating module, 51-external plate group, 511-external baffle, 52-floater, 520-sub floater, 6-water diversion module, 61-source module, 62-pipeline assembly, 7-folding assembly plate, 70-folding plate, 700-floating box, 71-clamping assembly, 711-excess strip, 712-clamping slot, 713-clamping block. DETAILED DESCRIPTION

[0050] EMBODIMENT

[0051] As Figure 1 shown in a device for repairing heavy metal pollution of water ecological environment in a river basin, comprising a floating base 1, a nutrient substrate layer 2 arranged in the floating base 1, and ecological plants 3 planted in the nutrient substrate layer 2; the floating base 1 adopts an assembly type structure, the floating base 1 comprises a built-in floating module 4 for arranging the nutrient substrate layer 2, an external floating module 5 arranged outside the built-in floating module 4 and used for protecting the built-in floating module 4, and a water diversion module 6 used for diverting water to the nutrient substrate layer 2;

[0052] As Figure 2 , 3 shown, the built-in floating module 4 includes a mounting frame 41 provided with an assembly groove 410, an assembly plate group 42 installed one-to-one in the assembly groove 410, and a built-in partition plate group 43 capable of being arranged on the mounting frame 41;

[0053] The outer floating module 5 includes an outer plate group 51 capable of being connected with the outermost mounting frame 41, and a floating body 52 connected with the outer plate group 51;

[0054] The mounting frame 41 includes a plurality of mounting rods 411, and the assembly plate group 42 includes a plurality of assembly bottom plates 421, one side of the mounting rod 411 is connected with the assembly bottom plate 421, and the adjacent two mounting rods 411 can be clamped;

[0055] The built-in partition plate group 43 includes a plurality of built-in baffles 431, and the built-in baffles 431 are arranged one-to-one on the mounting rod 411;

[0056] The outer plate group 51 includes a plurality of outer baffles 511 connected one-to-one with the outermost mounting rod 411; and the floating body 52 includes a plurality of sub-floating bodies 520 connected one-to-one with the outer baffles 511;

[0057] The outer baffles 511 and the built-in baffles 431 form a buffer cavity; and the water diversion module 6 includes a source module 61 arranged on the outer side wall of the outer baffle 511, and a pipeline assembly 62 for connecting the source module 61 with the nutrient substrate layer 2.

[0058] Among them, the assembly bottom plate 421, the built-in baffle 431 and the outer baffle 511 all adopt commercially available plastic plates with different sizes;

[0059] As Figure 4 shown, the mounting rod 411 includes a mounting rod body 412 and a clamping groove 413 arranged on the side wall of the mounting rod body 412 for mounting the assembly bottom plate 421; and the upper end of the mounting rod body 412 is provided with a mounting groove 414 for mounting the built-in baffle 431.

[0060] Embodiment

[0061] As Figure 1 shown, a device for repairing heavy metal pollution of water ecological environment in a river basin includes a floating base 1, a nutrient substrate layer 2 arranged in the floating base 1, and ecological plants 3 planted in the nutrient substrate layer 2; the floating base 1 adopts an assembly type structure, and the floating base 1 includes a built-in floating module 4 for arranging the nutrient substrate layer 2, an outer floating module 5 arranged outside the built-in floating module 4 and used for protecting the built-in floating module 4, and a water diversion module 6 for diverting water to the nutrient substrate layer 2;

[0062] As shown in Figure 2 , 3 , the built-in floating module 4 comprises a mounting frame 41 provided with assembly grooves 410, an assembly plate set 42 mounted in the assembly grooves 410 one by one, and a built-in partition plate set 43 capable of being arranged on the mounting frame 41;

[0063] As shown in Figure 2 , 3 , the built-in floating module 4 comprises a mounting frame 41 provided with assembly grooves 410, an assembly plate set 42 mounted in the assembly grooves 410 one by one, and a built-in partition plate set 43 capable of being arranged on the mounting frame 41;

[0064] The mounting frame 41 comprises a plurality of mounting rods 411, and the assembly plate set 42 comprises a plurality of assembly bottom plates 421, one side of the mounting rod 411 is connected with the assembly bottom plate 421, and the adjacent two mounting rods 411 can be clamped;

[0065] The built-in partition plate set 43 comprises a plurality of built-in baffles 431, and the built-in baffles 431 are arranged on the mounting rod 411 one by one;

[0066] As shown in Figure 2 , 3 , the built-in floating module 4 comprises a mounting frame 41 provided with assembly grooves 410, an assembly plate set 42 mounted in the assembly grooves 410 one by one, and a built-in partition plate set 43 capable of being arranged on the mounting frame 41;

[0067] The built-in partition plate set 43 comprises a plurality of built-in baffles 431, and the built-in baffles 431 are arranged on the mounting rod 411 one by one;

[0068] Among them, the assembly bottom plate 421, the built-in baffle 431 and the outer baffle 511 all adopt commercially available plastic plates of different sizes; as shown in Figure 5 , the mounting rod 411 comprises a mounting rod body 412 and a clamping groove 413 arranged on the side wall of the mounting rod body 412 for mounting the assembly bottom plate 421; the upper end of the mounting rod body 412 is provided with a mounting groove 414 for mounting the built-in baffle 431; a plurality of reinforcing assemblies 415 are further arranged on the mounting rod 411 and are arranged at intervals and used for reinforcing the built-in baffle 431; the reinforcing assembly 415 comprises two clamping rods 416 arranged on the mounting rod 411 and located on both sides of the mounting groove 414, a clamping block 417 movably sleeved on the clamping rod 416, and a reinforcing nut 418 threadedly connected on the clamping rod 416 and located outside the clamping block 417.

[0069] Embodiment

[0070] As shown in Figure 1The device for repairing heavy metal pollution of water ecological environment of a river basin, shown, comprises a floating base 1, a nutrient substrate layer 2 arranged in the floating base 1, and ecological plants 3 planted in the nutrient substrate layer 2; the floating base 1 adopts an assembled structure, and comprises an inner floating module 4 for arranging the nutrient substrate layer 2, an outer floating module 5 arranged outside the inner floating module 4 and used for protecting the inner floating module 4, and a water introduction module 6 used for introducing water to the nutrient substrate layer 2;

[0071] As shown in Figure 2 、 3 The inner floating module 4 comprises a mounting frame 41 provided with assembly grooves 410, an assembly plate set 42 one-to-one corresponding arranged in the assembly grooves 410, and an inner partition plate set 43 capable of being arranged on the mounting frame 41;

[0072] As shown in Figure 2 、 3 The outer floating module 5 comprises an outer plate set 51 capable of being connected with the outermost mounting frame 41, and a floating body 52 connected with the outer plate set 51;

[0073] The mounting frame 41 comprises a plurality of mounting rods 411, the assembly plate set 42 comprises a plurality of assembly bottom plates 421, the mounting rod 411 is connected with one side of the assembly bottom plate 421, and adjacent two mounting rods 411 can be clamped;

[0074] The inner partition plate set 43 comprises a plurality of inner baffles 431, and the inner baffles 431 are one-to-one corresponding arranged on the mounting rod 411;

[0075] As shown in Figure 2 、 3 The outer plate set 51 comprises a plurality of outer baffles 511 one-to-one corresponding connected with the outermost mounting rod 411; the floating body 52 comprises a plurality of sub-floating bodies 520 one-to-one connected with the outer baffles 511;

[0076] The outer baffles 511 and the inner baffles 431 form a buffer cavity; the water introduction module 6 comprises a source module 61 arranged on the outer side wall of the outer baffle 511, and a pipeline assembly 62 used for connecting the source module 61 with the nutrient substrate layer 2.

[0077] Among them, the inner baffles 431 and the outer baffles 511 are all made of commercially available plastic plates with different sizes;

[0078] As shown in Figure 5As shown, the mounting rod 411 comprises a mounting rod body 412, and a clamping groove 413 arranged on the side wall of the mounting rod body 412 for mounting the assembly bottom plate 421; the upper end of the mounting rod body 412 is provided with a mounting groove 414 for mounting the built-in baffle 431; the mounting rod 411 is further provided with a plurality of reinforcing assemblies 415 arranged at intervals and used for reinforcing the built-in baffle 431; the reinforcing assembly 415 comprises two clamping rods 416 arranged on the mounting rod 411 and located on both sides of the mounting groove 414, a clamping block 417 movably sleeved on the clamping rod 416, and a reinforcing nut 418 threadedly connected to the clamping rod 416 and located outside the clamping block 417;

[0079] As shown in Figure 6 , the assembly bottom plate 421 adopts a folding assembly plate 7, and is made of plastic material; the folding assembly plate 7 comprises nine folding plates 70 arranged in a 3x3 matrix, and a clamping assembly 71 for connecting adjacent two folding plates 70; as shown in Figure 7 , the clamping assembly 71 comprises a surplus strip 711 for connecting one side of adjacent two folding plates 70, and a clamping module for connecting the other side of adjacent two folding plates 70; the clamping module comprises a clamping groove 712 arranged on one of the folding plates 70, and a clamping block 713 arranged on the other folding plate 70 and clamped with the clamping groove 712; the surplus strip 711, the folding plate 70 and the clamping block 713 are of an integral structure.

[0080] Embodiment

[0081] As shown in Figure 1 , a device for repairing heavy metal pollution of water ecological environment in a river basin, comprising a floating base 1, a nutrient substrate layer 2 arranged in the floating base 1, and ecological plants 3 planted in the nutrient substrate layer 2; the floating base 1 adopts an assembly type structure, and comprises an inner floating module 4 for arranging the nutrient substrate layer 2, an outer floating module 5 arranged outside the inner floating module 4 and used for protecting the inner floating module 4, and a water guiding module 6 for guiding water to the nutrient substrate layer 2;

[0082] As shown in Figure 2 , 3 , the inner floating module 4 comprises a mounting frame 41 provided with an assembly groove 410, an assembly plate group 42 one-to-one corresponding mounted in the assembly groove 410, and an inner partition plate group 43 capable of being arranged on the mounting frame 41;

[0083] As shown in Figure 2 , 3 , the outer floating module 5 comprises an outer plate group 51 capable of being connected with the outermost mounting frame 41, and a floating body 52 connected with the outer plate group 51;

[0084] The mounting frame 41 comprises a plurality of mounting rods 411, the assembly plate set 42 comprises a plurality of assembly bottom plates 421, one side of the mounting rod 411 is connected with the assembly bottom plate 421, and adjacent two mounting rods 411 can be clamped;

[0085] The built-in partition plate set 43 comprises a plurality of built-in baffle plates 431, and the built-in baffle plates 431 are arranged one by one on the mounting rods 411;

[0086] As shown in Figure 2 , 3 , the outer plate set 51 comprises a plurality of outer baffle plates 511 which are connected one by one with the outermost mounting rods 411; the floating body 52 comprises a plurality of sub-floating bodies 520 which are connected one by one with the outer baffle plates 511.

[0087] The outer baffle plate 511 and the built-in baffle plate 431 form a buffer cavity; the water diversion module 6 comprises a source module 61 arranged on the outer side wall of the outer baffle plate 511, and a pipeline assembly 62 for connecting the source module 61 with the nutrient substrate layer 2.

[0088] Among them, the built-in baffle plate 431 and the outer baffle plate 511 are all made of commercially available plastic plates with different sizes;

[0089] As shown in Figure 5 , the mounting rod 411 comprises a mounting rod body 412 and a clamping groove 413 arranged on the side wall of the mounting rod body 412 for mounting the assembly bottom plate 421; the upper end of the mounting rod body 412 is provided with a mounting groove 414 for mounting the built-in baffle plate 431; a plurality of reinforcing assemblies 415 are further arranged on the mounting rod 411 and are arranged at intervals and used for reinforcing the built-in baffle plate 431; the reinforcing assembly 415 comprises two clamping rods 416 arranged on the mounting rod 411 and located on both sides of the mounting groove 414, a clamping block 417 movably sleeved on the clamping rod 416, and a reinforcing nut 418 threadedly connected on the clamping rod 416 and located outside the clamping block 417;

[0090] As shown in Figure 8 , the folding assembly plate 7 comprises nine folding plates 70 arranged in a 3x3 matrix, a clamping assembly 71 for connecting adjacent two folding plates 70, and a floating box 700 arranged at the lower end of the folding plate 70; the floating box 700 and the folding plate 70 located in the middle position are in an integral structure.

[0091] As shown in Figure 7As shown, the snap-fit ​​assembly 71 includes a spare strip 711 for connecting one side of two adjacent folding plates 70, and a snap-fit ​​module for connecting the other side of two adjacent folding plates 70; the snap-fit ​​module includes a slot 712 disposed on one of the folding plates 70, and a block 713 disposed on the other folding plate 70 and snap-fitting with the slot 712; the spare strip 711, the folding plate 70, and the block 713 are an integral structure.

[0092] Example

[0093] like Figure 1 The device shown is for the remediation of heavy metal pollution in the watershed aquatic ecological environment. It includes a floating base 1, a nutrient substrate layer 2 disposed in the floating base 1, and ecological plants 3 planted in the nutrient substrate layer 2. The floating base 1 adopts a prefabricated structure. The floating base 1 includes an internal floating module 4 for setting the nutrient substrate layer 2, an external floating module 5 disposed outside the internal floating module 4 and used to protect the internal floating module 4, and a water-guiding module 6 for guiding water to the nutrient substrate layer 2.

[0094] like Figure 2 , 9 As shown, the built-in floating module 4 includes a mounting frame 41 with an assembly slot 410, an assembly plate group 42 that is installed in the assembly slot 410, a built-in partition plate group 43 that can be set on the mounting frame 41, and a support component 44 for the assembly plate group 42.

[0095] like Figure 2 , 9 As shown, the external floating module 5 includes an external plate assembly 51 that can be connected to the outermost mounting frame 41, and a floating body 52 connected to the external plate assembly 51.

[0096] The mounting frame 41 includes multiple mounting rods 411, and the assembly plate group 42 includes multiple assembly base plates 421. The mounting rods 411 are connected to one side of the assembly base plate 421, and two adjacent mounting rods 411 can be snapped together.

[0097] The built-in partition plate group 43 includes multiple built-in baffles 431, which are respectively arranged on the mounting rod 411;

[0098] like Figure 2 , 9 As shown, the outer plate assembly 51 includes multiple outer baffles 511 that are connected one-to-one with the outermost mounting rod 411; the floating body 52 includes multiple sub-floating bodies 520 that are connected one-to-one with the outer baffles 511.

[0099] like Figure 2 , 9As shown, the buffer cavity is formed between the outer baffle 511 and the inner baffle 431; the water diversion module 6 comprises a source module 61 arranged on the outer sidewall of the outer baffle 511, and a pipeline assembly 62 for connecting the source module 61 with the nutrient substrate layer 2.

[0100] The inner baffle 431 and the outer baffle 511 are both made of commercially available plastic plates with different sizes.

[0101] As shown in Figure 5 , the mounting rod 411 comprises a mounting rod body 412 and a clamping groove 413 arranged on the sidewall of the mounting rod body 412 for mounting the assembly bottom plate 421; the upper end of the mounting rod body 412 is provided with a mounting groove 414 for mounting the inner baffle 431; the mounting rod 411 is further provided with a plurality of reinforcing assemblies 415 arranged at intervals and used for reinforcing the inner baffle 431; the reinforcing assembly 415 comprises two clamping rods 416 arranged on the mounting rod 411 and located on both sides of the mounting groove 414, a clamping block 417 movably sleeved on the clamping rod 416, and a reinforcing nut 418 threadedly connected to the clamping rod 416 and located outside the clamping block 417.

[0102] As shown in Figure 8 , the folding assembly plate 7 comprises nine folding plates 70 arranged in a 3x3 matrix, a clamping assembly 71 for connecting adjacent two folding plates 70, and a floating box 700 arranged at the lower end of the folding plate 70; the floating box 700 is an integral structure with the folding plate 70 located in the middle position.

[0103] As shown in Figure 7 , the clamping assembly 71 comprises a surplus strip 711 for connecting one side of adjacent two folding plates 70, and a clamping module for connecting the other side of adjacent two folding plates 70; the clamping module comprises a clamping groove 712 arranged on one of the folding plates 70, and a clamping block 713 arranged on the other folding plate 70 and clamped with the clamping groove 712; the surplus strip 711, the folding plate 70 and the clamping block 713 are an integral structure.

[0104] As shown in Figure 10 , the support assembly 44 is used for supporting the assembly bottom plate 421, and the support assembly 44 comprises a plurality of support rods connected in sequence; the support rod comprises a support main rod 441 provided with a folding groove 440 on the sidewall, and a support auxiliary rod 442 arranged on the support main rod 441 through a pin shaft and capable of being placed in the folding groove 440; the support main rod 441 and the support auxiliary rod 442 constitute an I-shaped structure.

[0105] As shown in Figure 11As shown, the support main rod 441 is provided with an insertion block 4411 at one end and an insertion slot 4412 at the other end; two adjacent support main rods 441 are movably connected through the insertion block 4411 and the insertion slot 4412; the support auxiliary rod 442 adopts a telescopic structure.

[0106] Application example

[0107] The device of the application simulates 'artificial wetland': as shown in Figure 12 、 13 , 14, different installation positions of the pipeline assembly 62 are selected to assemble to simulate'surface artificial wetland', 'horizontal subsurface flow artificial wetland' and'vertical subsurface flow artificial wetland'; it should be noted that: Figure 12 、 13 , 14 shows the water flow path, which is a partial structural schematic diagram, and other components are not shown here; and the mounting rod 411, the assembly bottom plate 421, the built-in baffle 431 and the external baffle 511 are all made of plastic material; the source module 61 includes a plastic grid net box filled with water-absorbing sponge, and the pipeline assembly 62 adopts a hot melt pipe; and the plastic material components having a connection relationship are connected by hot melting to ensure the sealing property;

[0108] Among them, as shown in Figure 12 , the principle of simulating'surface artificial wetland' is that the water of the water area to be repaired enters the device through the source module 61 opposite to the water flow direction, and is sequentially introduced to the substrate surface layer composed of the nutrient substrate layer 2 and the ecological plant 3 through the pipeline assembly 62, and relies on the interception of the ecological plant 3 root and the surface soil of the nutrient substrate layer 2 and the degradation of the biological membrane generated on the ecological plant 3 root.

[0109] As shown in Figure 13 , the principle of simulating 'horizontal subsurface flow artificial wetland' is that the water of the water area to be repaired enters the device through the source module 61 opposite to the water flow direction, and is sequentially introduced into and through the inside of the nutrient substrate layer 2 through the pipeline assembly 62, and flows in a nearly horizontal flow manner in the nutrient substrate layer 2.

[0110] As shown in Figure 14 , the principle of simulating'vertical subsurface flow artificial wetland' is that the water of the water area to be repaired enters the device through the source module 61 opposite to the water flow direction, and is introduced from the surface of the nutrient substrate layer 2 into the inside of the nutrient substrate layer 2 through the pipeline assembly 62, and finally flows to the lower part of the nutrient substrate layer 2 and is introduced out through the pipeline assembly 62.

[0111] It should be noted that the nutrient substrate layer 2 and the ecological plant 3 can be selected according to the actual water area to be repaired, and a repair agent for repairing heavy metal ions can be mixed in the inside of the nutrient substrate layer 2 to improve the repair efficiency of the water area to be repaired.

Claims

1. A device for remediating heavy metal pollution in a watershed's aquatic ecological environment, comprising a floating base (1), a nutrient substrate layer (2) disposed within the floating base (1), and ecological plants (3) planted within the nutrient substrate layer (2); the floating base (1) adopts an assembled structure, the floating base (1) comprising an internal floating module (4) for setting the nutrient substrate layer (2), an external floating module (5) disposed outside the internal floating module (4) and used to protect the internal floating module (4), and a water-guiding module (6) for guiding water into the nutrient substrate layer (2); Its features are, The built-in floating module (4) includes an installation frame (41) with an assembly slot (410), an assembly plate group (42) installed in the assembly slot (410) in a corresponding manner, and a built-in partition plate group (43) that can be set on the installation frame (41). The external floating module (5) includes an external plate assembly (51) that can be connected to the outermost mounting frame (41), and a floating body (52) connected to the external plate assembly (51). The mounting frame (41) includes multiple mounting rods (411), the assembly plate group (42) includes multiple assembly base plates (421), the mounting rods (411) are connected to one side of the assembly base plate (421), and two adjacent mounting rods (411) can be snapped together; The built-in dividing plate group (43) includes a plurality of built-in baffles (431), and the built-in baffles (431) are respectively arranged on the mounting rod (411); The external plate assembly (51) includes multiple external baffles (511) that are connected one-to-one with the outermost mounting rod (411); the floating body (52) includes multiple sub-floating bodies (520) that are connected one-to-one with the external baffles (511). A buffer cavity is formed between the external baffle (511) and the internal baffle (431); the water intake module (6) includes a source module (61) disposed on the outer side wall of the external baffle (511) and a pipeline assembly (62) for connecting the source module (61) to the nutrient substrate layer (2). The mounting rod (411) includes a mounting rod body (412) and a clamping groove (413) provided on the side wall of the mounting rod body (412) for mounting the assembly base plate (421); the upper end of the mounting rod body (412) is provided with a mounting groove (414) for mounting the built-in baffle (431). The mounting rod (411) is also provided with a plurality of spaced reinforcement components (415) for reinforcing the built-in baffle (431); the reinforcement component (415) includes two clamping rods (416) disposed on the mounting rod (411) and located on both sides of the mounting groove (414), a clamping block (417) movably sleeved on the clamping rod (416), and a reinforcement nut (418) threadedly connected to the clamping rod (416) and located outside the clamping block (417). The assembly base plate (421) is a foldable assembly plate (7) and is made of plastic. The folding assembly plate (7) includes a plurality of folding plates (70) connected in a matrix, and a snap-fit ​​assembly (71) for connecting two adjacent folding plates (70); the snap-fit ​​assembly (71) includes a margin strip (711) for connecting one side of the folding of two adjacent folding plates (70), and a snap-fit ​​module for connecting the other side of two adjacent folding plates (70); the snap-fit ​​module includes a slot (712) disposed on one of the folding plates (70), and a snap-fit ​​block (713) disposed on the other folding plate (70) and snap-fitting with the slot (712); the margin strip (711), the folding plate (70), and the snap-fit ​​block (713) are an integral structure; The foldable assembly plate (7) also includes a floating box (700) disposed at the lower end of the foldable plate (70); the floating box (700) and the foldable plate (70) in the middle position are an integral structure; The built-in floating module (4) also includes a support component (44) for supporting the assembly base plate (421). The support assembly (44) includes a plurality of support rods spliced ​​together in sequence; the support rod includes a main support rod (441) with a folding groove (440) on its side wall, and a secondary support rod (442) which is set on the main support rod (441) by a pin and can be placed in the folding groove (440); the main support rod (441) and the secondary support rod (442) form an I-shaped structure.

2. The remediation device for heavy metal pollution in watershed aquatic ecological environment as described in claim 1, characterized in that, One end of the support rod (441) is provided with a plug (4411) and the other end is provided with a slot (4412); two adjacent support rods (441) are movably connected through the plug (4411) and the slot (4412).

3. The remediation device for heavy metal pollution in watershed aquatic ecological environment as described in claim 1, characterized in that, The supporting sub-rod (442) adopts a telescopic structure.

4. The repair method of the repair device according to any one of claims 1-3, characterized in that, include: S1, Assembly and Repair Device The restoration device is assembled according to the water ecological environment area of ​​the watershed to be restored: the appropriate size is designed according to the area of ​​the watershed to be restored, and the actual size of the required floating base (1) is determined according to the size. Then the number of installation rods (411), assembly base plate (421), internal baffle (431), external baffle (511), and sub-floating body (520) is determined. Then the assembly is carried out. After the assembly is completed, the water diversion module (6) is matched to construct the floating base (1). Then the nutrient matrix is ​​filled to construct the nutrient matrix layer (2). Then the ecological plants (3) are planted on the nutrient matrix layer (2) to complete the assembly of the restoration device. S2, Repair The assembled restoration equipment is used to restore the water bodies within the watershed's aquatic ecological environment area.

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