Water quality transparency improving system for open type river channel

Abstract

The utility model discloses a water quality transparency improving system for an open type riverway, which comprises a core ecological stable area arranged in the riverway, and a front regulation and storage pretreatment area and an ecological buffer area which are respectively arranged at two ends of the core ecological stable area, a three-dimensional ecological filtering barrier and a plurality of flexible flow guide devices are sequentially arranged in the front regulation and storage pretreatment area in the direction close to the ecological buffer area, and at least one hydrophilic micro-ecological system is arranged between every two adjacent flexible flow guide devices. Through the arrangement of the front regulation and storage pretreatment area, suspended solids in a water body can be intercepted, the flow velocity of the water body is properly slowed down, particulate matters and silt in the water body are intercepted and settled, the transparency of the water body is improved, and nitrogen, phosphorus and part of organic matters in the water body can be removed; and through the arrangement of the ecological buffer area, suspended matter particles in the water body can be naturally settled, and further purification of the water body is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification, in particular to a water quality transparency improvement system for an open river channel. Background Art

[0002] In order to avoid affecting the landscape function of water bodies, destroying the growth of submerged plants and affecting the ecological service function of water bodies, landscape water bodies and ecosystems dominated by submerged plants or other water bodies have certain restrictions on suspended matter and transparency. Therefore, for river water bodies with high suspended matter content, many fine particles, low transparency and poor water quality, the water body needs to be pre-treated to reduce the suspended matter content of the water body, improve transparency and pre-purify the water quality.

[0003] In the current existing technology, in order to purify water quality, the main way to improve the transparency of water bodies and reduce the content of suspended matter in water bodies is to add a large amount of quicklime or PAC and other materials with flocculation effect into the water body to reduce the content of suspended matter in the water body and achieve the effect of improving water transparency. However, this purification method is not ideal for open rivers, and requires the addition of a large amount of flocculation materials, which is easy to affect the water environment. Utility Model Content

[0004] The purpose of the utility model is to provide a water quality transparency improvement system for an open river channel, so as to solve the above-mentioned technical problems.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A water quality transparency improvement system for an open river channel, comprising a core ecological stability zone arranged in the river channel, and a pre-regulation and storage pretreatment zone and an ecological buffer zone respectively arranged at both ends of the core ecological stability zone, wherein the pre-regulation and storage pretreatment zone is connected to the ecological buffer zone, and the ecological buffer zone is connected to the core ecological stability zone;

[0007] The pre-storage pretreatment area is provided with a three-dimensional ecological filtration barrier and a plurality of flexible flow guide devices in sequence in the direction close to the ecological buffer zone, and at least one hydrophilic micro-ecological system is provided between two adjacent flexible flow guide devices;

[0008] The ecological buffer zone is provided with a deep well filtration system, a combined ecological floating island, a submersible diversion wall and a modular planting device. The ecological buffer zone is provided with a plurality of modular planting devices in sequence in the direction close to the core ecological stability zone, a submersible diversion wall is provided between two adjacent modular planting devices, a plurality of combined ecological floating islands are provided on both sides of the ecological buffer zone close to the river bank, and the ecological buffer zone is provided with the deep well filtration system close to the pre-storage and pretreatment zone.

[0009] Preferably, a point source enhancement device is further included, and a plurality of such point source enhancement devices are arranged on both sides of the ecological buffer zone near the river bank.

[0010] Preferably, the three-dimensional ecological filtration barrier comprises:

[0011] A filtration device, wherein two filtration devices are installed at both sides of the pre-storage and pre-treatment area close to the river bank;

[0012] First positioning piles, a plurality of the first positioning piles are arranged between two of the infiltration devices;

[0013] A first floating body, wherein one side of the plurality of first positioning piles is provided with the first floating body, and the first floating body is connected to the first positioning piles;

[0014] a curtain body, the upper end of which is connected to the lower end of the first floating body;

[0015] A first gabion is provided at the lower end of the curtain body.

[0016] Preferably, the hydrophilic micro-ecosystem includes a plurality of ecological bases, and the plurality of ecological bases are distributed at the bottom of the river channel.

[0017] Preferably, each of the submersible diversion walls comprises:

[0018] Second positioning piles, wherein a plurality of the second positioning piles are arranged in a row, and an arrangement direction of the plurality of the second positioning piles is arranged obliquely and crosswise with a center line of the river channel;

[0019] a second floating body, the second floating body being arranged on one side of the plurality of second positioning piles, and the second floating body being connected to the second positioning piles;

[0020] a curtain, the upper end of which is connected to the lower end of the second floating body;

[0021] A second gabion is provided at the lower end of the curtain.

[0022] Preferably, the combined ecological floating island includes a floating bed, a third positioning pile, a water-blocking barrier, a filtration barrier, a casing and a first sandbag. A plurality of the third positioning piles are distributed according to a preset path. The upper end of each of the third positioning piles is threadedly connected to a casing. The floating bed is connected to the casing. The water-blocking barrier is provided on one side of the lower end of the floating bed, and the filtration barrier is provided on the other side of the lower end of the floating bed. A biological reaction zone is provided between the water-blocking barrier and the filtration barrier. A plurality of the first sandbags are provided at the lower ends of the water-blocking barrier and the filtration barrier, respectively.

[0023] As a further preference, the point source enhancement device includes a frame body and support legs, the support legs are provided at the lower end of the frame body, the first filter chamber, the second filter chamber and the third filter chamber are provided inside the frame body, and the planting area is provided at the upper end of the frame body.

[0024] The above technical solution has the following advantages or beneficial effects:

[0025] In the utility model, by setting up a pre-storage pretreatment zone, suspended matter in the water body can be intercepted, and the flow rate of the water body can be appropriately slowed down, and particulate matter and silt in the water body can be intercepted and settled, thereby improving the transparency of the water body and being able to remove nitrogen, phosphorus and some organic matter in the water body; by setting up an ecological buffer zone, suspended matter particles in the water body can be naturally settled, thereby achieving further purification of the water body. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the water transparency improvement system for an open river in the utility model;

[0027] Figure 2 It is a schematic diagram of the pre-storage pretreatment area in the utility model;

[0028] Figure 3 It is a schematic diagram of the ecological buffer zone in the utility model;

[0029] Figure 4 It is a schematic diagram of the core ecological stability zone in the utility model;

[0030] Figure 5 It is a schematic diagram of the front structure of the three-dimensional ecological filtration barrier in the utility model;

[0031] Figure 6 It is a top view of the three-dimensional ecological filtration barrier in the utility model;

[0032] Figure 7 It is a side structural schematic diagram of the three-dimensional ecological filtration barrier in the utility model;

[0033] Figure 8 It is a front structural schematic diagram of the flexible flow guide device in the utility model;

[0034] Fig. 9 It is a top view of the flexible flow guide device in the utility model;

[0035] Fig.10 It is a side structural schematic diagram of the flexible flow guide device in the utility model;

[0036] Fig.11 It is a distribution diagram of the hydrophilic micro-ecological system in the utility model;

[0037] Fig.12 It is a top view of the deep well filtration system in the utility model;

[0038] Fig.13 A front structural diagram of the deep well filtration system in the utility model;

[0039] Fig.14 It is a front structural schematic diagram of the cooperation between some filtering devices in the utility model;

[0040] Fig.15 It is a schematic diagram of the top view structure of the combined ecological floating island in the utility model;

[0041] Fig.16 It is a schematic diagram of the cross-sectional structure of the combined ecological floating island in the utility model;

[0042] Fig.17 It is an expanded schematic diagram of the cross-sectional structure diagram of the combined ecological floating island in the utility model;

[0043] Fig.18 It is a top view of the submersible diversion wall in the utility model;

[0044] Fig.19 It is a structural schematic diagram of the submersible diversion wall in the utility model;

[0045] Fig. 20 It is a structural schematic diagram of the modular planting device in the utility model;

[0046] Fig.21 It is a top view of the point source enhancement device in the utility model;

[0047] Fig. 22 It is a cross-sectional schematic diagram of the point source enhancement device in the utility model.

[0048] In the figure: 1. river channel; 2. river bank; 3. riverbed; 4. pre-regulation and pretreatment area; 5. ecological buffer zone; 6. core ecological stability zone; 7. three-dimensional ecological filtration barrier; 701. infiltration device; 702. first positioning pile; 703. first floating body; 704. curtain body; 705. first gabion; 8. flexible flow guide device; 801. fourth positioning pile; 802. rubber airbag; 803. air nozzle; 804. ring; 805. iron chain; 806. shielding curtain body; 807. second sandbag; 9. hydrophilic micro-ecosystem; 901. ecological base; 10. deep well filtration system; 1001. filtration device; 1 1. Combined ecological floating island; 1101. Floating bed; 1102. Third positioning pile; 1103. Water barrier; 1104. Filtration barrier; 1105. Casing; 1106. First sandbag; 1107. Biological reaction area; 12. Submersible diversion wall; 1201. Second positioning pile; 1202. Second floating body; 1203. Curtain; 1204. Second gabion; 13. Modular planting device; 1301. Support frame; 14. Point source enhancement device; 1401. Frame body; 1402. Support leg; 1403. First filter chamber; 1404. Second filter chamber; 1405. Third filter chamber. DETAILED DESCRIPTION

[0049] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0050] In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, if the terms "first", "second", "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0051] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] Figure 1 It is a schematic diagram of the water transparency improvement system for an open river in the utility model; Figure 2 It is a schematic diagram of the pre-storage pretreatment area in the utility model; Figure 3 It is a schematic diagram of the ecological buffer zone in the utility model; Figure 4 It is a schematic diagram of the core ecological stability zone in the utility model; Figure 5 It is a schematic diagram of the front structure of the three-dimensional ecological filtration barrier in the utility model; Figure 6 It is a top view of the three-dimensional ecological filtration barrier in the utility model; Figure 7 It is a side structural schematic diagram of the three-dimensional ecological filtration barrier in the utility model; Figure 8 It is a front structural schematic diagram of the flexible flow guide device in the utility model; Fig. 9 It is a top view of the flexible flow guide device in the utility model; Fig.10 It is a side structural schematic diagram of the flexible flow guide device in the utility model; Fig.11 It is a distribution diagram of the hydrophilic micro-ecological system in the utility model; Fig.12 It is a top view of the deep well filtration system in the utility model; Fig.13 A front structural diagram of the deep well filtration system in the utility model; Fig.14 It is a front structural schematic diagram of the cooperation between some filtering devices in the utility model; Fig.15 It is a schematic diagram of the top view structure of the combined ecological floating island in the utility model; Fig.16 It is a schematic diagram of the cross-sectional structure of the combined ecological floating island in the utility model; Fig.17 It is an expanded schematic diagram of the cross-sectional structure diagram of the combined ecological floating island in the utility model; Fig.18 It is a top view of the submersible diversion wall in the utility model; Fig.19 It is a structural schematic diagram of the submersible diversion wall in the utility model; Fig. 20 It is a structural schematic diagram of the modular planting device in the utility model; Fig.21 It is a top view of the point source enhancement device in the utility model; Fig. 22 It is a cross-sectional schematic diagram of the point source enhancement device in the utility model. Figures 1 to 22As shown, a preferred embodiment is shown, which shows a water quality transparency improvement system for an open river, including a core ecological stabilization zone 6 arranged in a river 1 and a pre-regulation and storage pretreatment zone 4 and an ecological buffer zone 5 respectively arranged at both ends of the core ecological stabilization zone 6, the pre-regulation and storage pretreatment zone 4 is connected to the ecological buffer zone 5, and the ecological buffer zone 5 is connected to the core ecological stabilization zone 6; in this embodiment, see Figure 1 As shown, there are two pre-storage and pretreatment areas 4 and two ecological buffer areas 5, which are distributed at both ends of the core ecological stability area 6. For an open river channel 1, the pre-storage and pretreatment areas 4 and the ecological buffer areas 5 are arranged at the upstream and downstream ends of the river channel 1. The water body is first filtered, precipitated, and decelerated in the pre-storage and pretreatment areas 4 to facilitate the sedimentation of particulate impurities in the water body and improve the transparency of the water body.

[0053] In the front storage and pretreatment area 4, three-dimensional ecological filtration barriers 7 and several flexible flow guide devices 8 are sequentially arranged in the direction close to the ecological buffer zone 5, and at least one hydrophilic micro-ecological system 9 is arranged between two adjacent flexible flow guide devices 8. Among them, the three-dimensional ecological filtration barrier 7 can intercept and settle particulate impurities and sediment in the water body, and the flexible flow guide device 8 can play a buffering effect on the water body, prolong the residence time of the water body in the front storage and pretreatment area 4, and reduce the flow rate of the water body, which is more conducive to the settlement of particulate impurities in the water body, and the hydrophilic micro-ecological system 9 can remove nitrogen, phosphorus and some organic matter in the water body. Through the mutual cooperation of the three-dimensional ecological filtration barrier 7, the flexible flow guide device 8 and the hydrophilic micro-ecological system 9, the preliminary purification of the water body can be achieved.

[0054] Furthermore, as a preferred embodiment, a deep well filtration system 10, a combined ecological floating island 11, a submersible diversion wall 12 and a modular planting device 13 are provided in the ecological buffer zone 5. Several modular planting devices 13 are arranged in sequence in the ecological buffer zone 5 along the direction close to the core ecological stability zone 6. A submersible diversion wall 12 is arranged between two adjacent modular planting devices 13. Several combined ecological floating islands 11 are arranged on both sides of the ecological buffer zone 5 near the river bank 2. A deep well filtration system 10 is arranged in the ecological buffer zone 5 near the pre-storage and pretreatment zone 4. Among them, the deep well filtration system 10 is installed at the connection between the ecological buffer zone 5 and the front storage and pretreatment zone 4. The deep well filtration system 10 includes a plurality of filtration devices 1001. A plurality of filtration chambers are arranged inside each filtration device 1001. Both sides of the filtration device 1001 are connected to the filtration chambers. Each filtration chamber is filled with natural filter particles. The particle sizes of the natural filter particles in different filtration chambers are different, so that particulate impurities of different particle sizes can be filtered. Among them, the particle size of some natural filter particles gradually decreases from one side of the filtration device 1001 to the other side. For example, the particle size of the natural filter particles in the filter device at the upstream end of the river channel 1 gradually decreases in the direction approaching the ecological buffer zone 5. It can be specifically set according to the actual usage. Among them, a plurality of filtration devices 1001 are distributed along the width direction of the river channel 1, and one or more filtration devices 1001 can be set at the upper end of each filtration device 1001 as needed. For details, please refer to Fig.13 and Fig.14 As shown, the number of superimposed filter devices 1001 can be set according to the depth of the water body. A composite fiber floating bed can be provided at the upper end of the topmost filter device 1001, and floating leaf plants can be planted on the composite fiber floating bed to absorb particulate matter in the water body and achieve natural sedimentation of particulate impurities.

[0055] The upper end of the combined ecological floating island 11 is mainly planted with some emergent plants. As wetland plants, emergent plants can mainly rely on plants to absorb particulate matter in the water body and achieve natural sedimentation to purify the water quality. The submerged diversion wall 12 can divert the water body, extend the residence time of the water body in the ecological buffer zone 5, and at the same time guide part of the water entering the ecological buffer zone 5 to the combined ecological floating island 11 area. The modular planting device 13 is planted with submerged plants, which can remove nutrients in the water, and can be stocked with some fish, clams, and snails that feed on phytoplankton to build a complex and stable ecosystem, so as to further reduce water pollution.

[0056] Furthermore, as a preferred embodiment, it also includes a point source enhancement device 14, and a plurality of point source enhancement devices 14 are provided on both sides of the ecological buffer zone 5 near the river bank 2.

[0057] Further, as a preferred embodiment, the three-dimensional ecological filtration barrier 7 includes:

[0058] The two infiltration devices 701 are installed on both sides of the pre-storage and pretreatment area 4 near the river bank 2; the infiltration device 701 in this embodiment is a soil infiltration device 701, and the structure of the infiltration device 701 is the prior art and is not limited here.

[0059] First positioning piles 702, a plurality of first positioning piles 702 are arranged between two infiltration devices 701;

[0060] A first float 703 is provided on one side of the plurality of first positioning piles 702, and the first float 703 is connected to the first positioning piles 702; wherein, the lower end of the first positioning pile 702 is a pointed end, which is used to be inserted into the riverbed 3 for fixation, and the first float 703 is connected to the first positioning pile 702 by a nylon rope, and the length of the nylon rope can be set as needed to avoid the water body at high tide from submerging the first float 703, and the first float 703 can be a buoy filled with foam.

[0061] The curtain body 704 has an upper end connected to the lower end of the first floating body 703; wherein the curtain body 704 is made of a water-permeable cloth, which can not only filter particulate impurities in the water body, but also facilitate the passage of water.

[0062] The first gabion 705 is provided at the lower end of the curtain body 704. The first gabion 705 can pull down the curtain body 704 to prevent the curtain body 704 from floating.

[0063] Further, as a preferred embodiment, the hydrophilic micro-ecological system 9 includes a plurality of ecological bases 901, and the plurality of ecological bases 901 are distributed at the bottom of the river channel 1. The structure of the ecological base 901 in this embodiment is an existing structure, mainly including a base and a woven structure arranged on both sides of the upper end of the base, a foam interlayer is arranged in the middle of the woven structure, and a hollow sleeve for pouring heavy objects is arranged on the base, so that the ecological base 901 can sink to the bottom of the water. The woven structures on both sides are in the shape of water grass, which increases the contact area with the water body, better absorbs nutrients and algae in the water body, facilitates the growth and reproduction of beneficial microorganisms, and absorbs nitrogen, phosphorus and organic matter in the water body. Among them, a plurality of ecological bases 901 form a biological grid, which can intercept and settle particulate matter and sediment in the water body.

[0064] Further, as a preferred embodiment, each submersible guide wall 12 includes:

[0065] The second positioning piles 1201 are arranged in a row, and the arrangement direction of the second positioning piles 1201 is inclined and intersected with the center line of the river channel 1. For details, see Fig.18 As shown;

[0066] A second floating body 1202, which is disposed on one side of the plurality of second positioning piles 1201, and the second floating body 1202 is connected to the second positioning piles 1201;

[0067] The curtain 1203, the upper end of the curtain 1203 is connected to the lower end of the second floating body 1202, and the curtain 1203 is also arranged at an angle, see Fig.18 As shown, this setting can play a role in diverting water bodies;

[0068] The second gabion 1204 is provided at the lower end of the curtain 1203. The lower end of the second positioning pile 1201 is a pointed end for inserting into the riverbed 3, and the second floating body 1202 is a buoy or foam, the second floating body 1202 and the second positioning pile 1201 are connected by a nylon rope, the curtain 1203 is made of permeable cloth, and the second gabion 1204 is used to pull down the curtain 1203 to prevent the curtain 1203 from floating.

[0069] Further, as a preferred embodiment, the combined ecological floating island 11 includes a floating bed 1101, a third positioning pile 1102, a water barrier 1103, a filter barrier 1104, a sleeve 1105 and a first sandbag 1106. A plurality of third positioning piles 1102 are distributed according to a preset path. A sleeve 1105 is threadedly connected to the upper end of each third positioning pile 1102. The floating bed 1101 is connected to the sleeve 1105. A water barrier 1103 is provided on one side of the lower end of the floating bed 1101. A filter barrier 1104 is provided on the other side of the lower end of the floating bed 1101. A biological reaction zone 1107 is provided between the water barrier 1103 and the filter barrier 1104. A plurality of first sandbags 1106 are provided at the lower ends of the water barrier 1103 and the filter barrier 1104. The specific structure of the combined ecological floating island 11 can be found in Figures 15 to 17 As shown, some plants can be planted on the upper end of the floating bed 1101, and particulate impurities in the water body can be absorbed by the plants. The sleeve 1105 is threadedly connected to the upper end of the third positioning pile 1102, and the position of the sleeve 1105 on the third positioning pile 1102 can be adjusted to facilitate adaptation to water bodies of different depths. The floating bed 1101 and the sleeve 1105 can be connected by a nylon rope. Among them, the two ends of the floating bed 1101 are connected to the river bank 2. Between the water barrier 1103 and the filtration barrier 1104 is a biological reaction zone 1107, which includes anoxic zones and aerobic zones, and can achieve biological denitrification treatment. The specific denitrification method is also a prior art, which is no longer limited here.

[0070] Further, as a preferred embodiment, the point source enhancement device 14 includes a frame body 1401 and a support leg 1402. The support leg 1402 is provided at the lower end of the frame body 1401. The frame body 1401 is provided with a first filter chamber 1403, a second filter chamber 1404 and a third filter chamber 1405. The upper end of the frame body 1401 is provided with a planting area, which can be used to plant plants. Fig.21 and Fig. 22 As shown, the support legs 1402 are used to support the frame 1301 body, and the first filter chamber 1403, the second filter chamber 1404 and the third filter chamber 1405 are filled with composite filter materials of different particle sizes. For example, the particle size of the composite filter material in the first filter chamber 1403 is larger than the particle size of the composite filter material in the second filter chamber 1404, and the particle size of the composite filter material in the second filter chamber 1404 is larger than the particle size of the composite filter material in the third filter chamber 1405, so as to achieve filtering of different particulate impurities.

[0071] The structure of the flexible flow guiding device 8 in this embodiment can be seen in Figures 8 to 10 As shown, the flexible guide device 8 includes a plurality of fourth positioning piles 801, a rubber airbag 802, an air nozzle 803, a ring 804, an iron chain 805, a shielding curtain 806 and a second sandbag 807. The plurality of fourth positioning piles 801 are distributed along the width direction of the river channel 1, and the lower ends of the fourth positioning piles 801 are inserted into the riverbed 3. The rubber airbag 802 is connected to the plurality of fourth positioning piles 801 through a plurality of rings 804. The rings 804 are sleeved on the periphery of the fourth positioning piles 801. A plurality of air nozzles 803 are provided on the rubber airbag 802. The iron chain 805 is arranged at the lower end of the rubber airbag 802. The upper end of the shielding curtain 806 is connected to the iron chain 805, and the lower end of the shielding curtain 806 is connected to the second sandbag 807. The shielding curtain 806 is pulled down by the second sandbag 807 to prevent the shielding curtain 806 from floating up, and the rubber airbag 802 is connected to the fourth positioning pile 801 through the ring 804. At high tide or low tide, the rubber airbag 802 can move up and down relative to the fourth positioning pile 801 and always float on the upper side of the water body. The shielding curtain 806 is made of polyethylene or polypropylene water-permeable material, which can extend the time that the water body stays in the front-end storage and pretreatment area 4, and the flow rate of the water body passing through the shielding curtain 806 will also be greatly reduced, achieving a buffering effect, which is convenient for the precipitation of particulate impurities in the water body.

[0072] The structure of the modular planting device 13 in this embodiment can be seen as shown in 20. The modular planting device 13 includes a support frame 1301. A groove for planting submerged plants is provided at the upper end of the support frame 1301, and a support rod is provided at the lower end of the support frame 1301. The support rod is inserted into the riverbed 3.

[0073] In this embodiment, a deep well filtration system 10 and a combined ecological floating island 11 can be set up in the core ecological stability zone 6 as needed, wherein benthic organisms, such as aquatic insects, worms, snails, and shellfish, can be placed in the core ecological stability zone 6 to restore the diversity of the water ecosystem, and aquatic animals such as fish, shrimps, and crabs can also be placed to increase the productivity of submerged vegetation, forming a virtuous cycle of aquatic ecological self-purification system, and fully restoring the aquatic ecosystem; the water body is purified after the circulation of nutrients in the ecosystem, which is called the "ecological self-purification" of the water body. From a material point of view, nutrients such as nitrogen and phosphorus enter the water body and go through a series of complex processes, and are eventually harvested in the form of aquatic plants or captured and removed from the water body as aquatic animals.

[0074] At high tide, the water body can first enter the downstream pre-regulation and pretreatment area 4 and flow upstream. In the pre-regulation and pretreatment area 4, the water body will pass through the three-dimensional ecological filtration barrier 7 for preliminary filtration to remove particulate impurities in the water, and then pass through the hydrophilic micro-ecological system 9 under the action of the flexible diversion device 8, and then enter the deep well filtration system 10 for filtration and purification, and then enter the core ecological stability area 6 after the combined ecological floating island 11, the submersible diversion wall 12 and the modular planting device 13. At low tide, the water body flows from upstream to downstream, and the water body passes through the upstream pre-regulation and pretreatment and ecological buffer zone 5 and the core ecological stability zone 6, and then passes through the downstream ecological buffer zone 5 and pre-regulation and pretreatment.

[0075] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A water quality transparency improvement system for an open river, characterized in that: It includes a core ecological stability zone located in the river channel and a pre-regulation and pre-treatment zone and an ecological buffer zone respectively located at both ends of the core ecological stability zone, the pre-regulation and pre-treatment zone is connected to the ecological buffer zone, and the ecological buffer zone is connected to the core ecological stability zone; The pre-storage pretreatment area is provided with a three-dimensional ecological filtration barrier and a plurality of flexible flow guide devices in sequence in the direction close to the ecological buffer zone, and at least one hydrophilic micro-ecological system is provided between two adjacent flexible flow guide devices; The ecological buffer zone is provided with a deep well filtration system, a combined ecological floating island, a submersible diversion wall and a modular planting device. The ecological buffer zone is provided with a plurality of modular planting devices in sequence in the direction close to the core ecological stability zone, a submersible diversion wall is provided between two adjacent modular planting devices, a plurality of combined ecological floating islands are provided on both sides of the ecological buffer zone close to the river bank, and the ecological buffer zone is provided with the deep well filtration system close to the pre-storage and pretreatment zone.

2. The water quality transparency improvement system for an open river as claimed in claim 1, characterized in that: It also includes a point source enhancement device, and a plurality of the point source enhancement devices are arranged on both sides of the ecological buffer zone near the river bank.

3. The water quality transparency improvement system for an open river as claimed in claim 1, characterized in that: The three-dimensional ecological filtration barrier comprises: A filtration device, wherein two filtration devices are installed at both sides of the pre-storage and pre-treatment area close to the river bank; First positioning piles, a plurality of the first positioning piles are arranged between two of the infiltration devices; A first floating body, wherein one side of the plurality of first positioning piles is provided with the first floating body, and the first floating body is connected to the first positioning piles; a curtain body, the upper end of which is connected to the lower end of the first floating body; A first gabion is provided at the lower end of the curtain body.

4. The water quality transparency improvement system for an open river as claimed in claim 1, characterized in that: The hydrophilic micro-ecological system includes a plurality of ecological bases, and the plurality of ecological bases are distributed at the bottom of the river channel.

5. The water transparency improvement system for an open river as claimed in claim 1, characterized in that: Each of the submersible diversion walls comprises: Second positioning piles, wherein a plurality of the second positioning piles are arranged in a row, and an arrangement direction of the plurality of the second positioning piles is arranged obliquely and crosswise with a center line of the river channel; a second floating body, the second floating body being arranged on one side of the plurality of second positioning piles, and the second floating body being connected to the second positioning piles; a curtain, the upper end of which is connected to the lower end of the second floating body; A second gabion is provided at the lower end of the curtain.

6. The water transparency improvement system for an open river as claimed in claim 1, characterized in that: The combined ecological floating island includes a floating bed, a third positioning pile, a water-blocking barrier, a filtration barrier, a casing and a first sandbag. A plurality of the third positioning piles are distributed according to a preset path. The upper end of each of the third positioning piles is threadedly connected to a casing. The floating bed is connected to the casing. The water-blocking barrier is provided on one side of the lower end of the floating bed, and the filtration barrier is provided on the other side of the lower end of the floating bed. A biological reaction zone is provided between the water-blocking barrier and the filtration barrier. A plurality of the first sandbags are provided at the lower ends of the water-blocking barrier and the filtration barrier, respectively.

7. The water transparency improvement system for an open river as claimed in claim 2, characterized in that: The point source enhancement device includes a frame body and support legs. The support legs are provided at the lower end of the frame body. A first filter chamber, a second filter chamber and a third filter chamber are provided inside the frame body. A planting area is provided at the upper end of the frame body.

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