In-situ purification percolation weir for small and micro water body

Abstract

The utility model relates to the technical field of percolation weirs, in particular to a small and micro water body in-situ purification percolation weir which comprises a cushion layer arranged in a small and micro water body. The water distribution lattice wall is arranged on the cushion layer, and a plurality of water distribution openings are formed in the water distribution lattice wall; the water collecting tracery wall is arranged on the cushion layer, the water collecting tracery wall and the water distributing tracery wall are arranged at intervals, and a containing space is defined between the water collecting tracery wall and the water distributing tracery wall; a plurality of water collecting openings are formed in the water collecting lattice wall; the ecological matrix box is arranged in the containing space, and the ecological matrix box comprises a box body framework and an ecological matrix layer arranged in the box body framework. By arranging the water distribution and collection system and the modularized ecological matrix box, the flexibility and maintainability of the percolation weir are greatly enhanced; wherein the ecological matrix box serves as an independent module, different filler layers can be selected according to specific water quality conditions and treatment requirements, or the ecological matrix box can be replaced and maintained according to abrasion and pollution degrees, and operation and later maintenance are greatly facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of infiltration weirs, in particular to an in-situ purification infiltration weir for small micro water bodies. Background Art

[0002] In recent years, my country has begun to actively carry out research on the protection and management of small and micro wetlands, and has increased efforts in the protection and restoration of small and micro wetlands.

[0003] At present, improving the water quality of small and micro water bodies is one of the important directions of current water environment management. The infiltration weir purification system is a commonly used water purification method, but the traditional infiltration weir purification system often lacks flexibility, is difficult to customize according to actual needs, is difficult to assemble and maintain, and is not easy to clean. Therefore, it is of great practical application value to develop a small and micro water body water quality improvement infiltration weir purification system that can be customized according to actual needs, assembled arbitrarily, easy to build, reused, and easy to clean. Utility Model Content

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the problems in the prior art that the traditional infiltration weir purification system lacks flexibility, is difficult to customize according to actual needs, is difficult to assemble and maintain, and is inconvenient to clean.

[0005] In order to solve the above technical problems, the utility model provides a small water body in-situ purification infiltration weir, comprising:

[0006] A cushion layer, which is provided in a small micro-water body;

[0007] A water distribution splash wall is arranged on the cushion layer, and a plurality of water distribution ports are arranged on the water distribution splash wall;

[0008] A water collection wall is arranged on the cushion layer and is spaced apart from the water distribution wall, and a containing space is defined between the water collection wall and the water distribution wall; a plurality of water collection ports are arranged on the water collection wall;

[0009] An ecological matrix box is arranged in the accommodating space, and the ecological matrix box comprises a box frame and an ecological matrix layer arranged in the box frame.

[0010] In one embodiment of the present invention, the ecological matrix layer includes a plurality of ecological filler layers stacked in sequence from bottom to top.

[0011] In one embodiment of the present invention, the ecological filler layer includes at least one or more of a gravel layer, a ceramsite layer, and a zeolite layer.

[0012] In one embodiment of the utility model, the gravel layer is arranged at the bottom of the ecological matrix box, wherein the particle size of the gravel is 20-40mm; the expanded clay layer is arranged in the middle of the ecological matrix box, wherein the particle size of the expanded clay is 20-40mm; the zeolite layer is arranged at the top of the ecological matrix box, wherein the particle size of the zeolite is 20-40mm.

[0013] In one embodiment of the utility model, it also includes a cover plate, which is detachably and hermetically connected to the water distribution flower wall, and the cover plate is detachably and hermetically connected to the water collection flower wall.

[0014] In one embodiment of the utility model, the box frame includes a steel cage and a mesh sheet arranged on the surface of the steel cage structure, and the tops of the four corners of the steel cage away from the cushion layer are also provided with lifting rings.

[0015] In one embodiment of the utility model, the length of the steel cage is 1000mm, the width is 500mm, and the height is 500mm. The steel cage is welded by a number of φ8 steel bars; the mesh of the mesh is 20*20mm, and the mesh is welded by a number of φ4 iron wires.

[0016] In one embodiment of the utility model, a plurality of the water distribution outlets are arranged in a linear array along the length direction of the water distribution flower wall, and the array line of the water distribution outlets is located on the side of the water distribution flower wall close to the cushion layer; a plurality of the water collection outlets are arranged in a linear array along the length direction of the water collection flower wall, and the array of the water collection outlets is located on the side of the water collection flower wall away from the cushion layer.

[0017] In one embodiment of the utility model, the distance between the bottom of the water distribution outlet and the bottom of the water distribution flower wall is 120 mm, the distance between any two adjacent water distribution outlets is 500 mm, and the length of a single water distribution outlet is 120 mm and the width is 120 mm.

[0018] In one embodiment of the utility model, the distance between the top of the water collection port and the top of the water collection flower wall is 120 mm, the distance between any two adjacent water collection ports is 500 mm, and the length of a single water collection port is 120 mm and the width is 120 mm.

[0019] The above technical solution of the utility model has the following beneficial effects compared with the prior art:

[0020] Firstly, the present invention greatly enhances the flexibility and maintainability of the infiltration weir by setting up a water distribution and water collection system and a modular ecological matrix box; wherein, the ecological matrix box, as an independent module, can select different filler layers according to specific water quality conditions and treatment requirements, or can be replaced and maintained according to the degree of wear and pollution, which greatly facilitates operation and subsequent maintenance.

[0021] Secondly, the present invention improves the convenience of assembly and disassembly by providing a cover with a movable sealing connection or a detachable sealing connection, and also makes daily inspection, cleaning and necessary replacement of parts easier and faster, which helps to reduce maintenance costs in long-term operations and enhance the adaptability of the infiltration weir to different sites and different pollution loads.

[0022] Thirdly, the evenly distributed water distribution outlets in the water distribution flower wall and the evenly distributed water collection outlets in the water collection flower wall in the present invention can ensure the uniform inflow and outflow of water, maintain the hydrodynamic balance of the system, and prevent local premature blockage or wear of the ecological matrix layer; the multiple layers of ecological filler layers in the ecological matrix box have their own unique filtering and adsorption characteristics, which can specifically remove suspended matter, organic matter, nitrogen, phosphorus and other pollutants in the water, and at the same time provide a biodegradable environment. Through synergistic effects, the standards of treated water quality are improved, ensuring the continuous improvement of the ecological environment of small and micro water bodies. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein

[0024] Figure 1 It is a top view of the in-situ purification filtration weir of a small micro water body of the utility model;

[0025] Figure 2 It is a cross-sectional view of a water splash wall in the in-situ purification filtration weir of a small water body of the utility model;

[0026] Figure 3 It is a cross-sectional view of the water collection flower wall in the in-situ purification infiltration weir of a small water body of the utility model;

[0027] Figure 4 yes Figure 1 Sectional view at AA in the middle;

[0028] Figure 5 This is a schematic diagram of the structure of the ecological matrix box in the in-situ purification filtration weir of a small water body of the utility model;

[0029] Figure 6 This is a comparison diagram of the inlet water quality and outlet water quality of an embodiment of the utility model;

[0030] Figure 7 This is a comparison chart of the inlet and outlet water quality of a traditional infiltration weir;

[0031] Figure 8 It is a comparison chart of the removal rates of an embodiment of the utility model and a traditional infiltration weir.

[0032] Explanation of the reference numerals in the accompanying drawings in the specification: 20, cushion layer; 30, water distribution flower wall; 31, water distribution outlet; 40, water collection flower wall; 41, water collection outlet; 50, ecological matrix box; 51, box frame; 511, steel cage; 512, mesh; 513, lifting ring; 52, ecological matrix layer; 521, gravel layer; 522, expanded clay layer; 523, zeolite layer; 60, cover plate. DETAILED DESCRIPTION

[0033] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0034] Reference Figure 1-4 As shown, the utility model provides a small water body in-situ purification filtration weir, comprising:

[0035] A cushion layer 20, which is arranged in the small micro water body;

[0036] A water distribution wall 30 is provided on the cushion layer 20, and a plurality of water distribution ports 31 are provided on the water distribution wall 30;

[0037] The water collecting wall 40 is disposed on the cushion layer 20 and is spaced apart from the water distributing wall 30, and a containing space is defined between the water collecting wall 40 and the water distributing wall 30; the water collecting wall 40 is provided with a plurality of water collecting ports 41;

[0038] The ecological matrix box 50 is arranged in the accommodating space. The ecological matrix box 50 includes a box frame 51 and an ecological matrix layer 52 arranged in the box frame 51.

[0039] The infiltration weir in the utility model is composed of several parts such as a cushion layer 20, a water distribution flower wall 30, a water collection flower wall 40, and an ecological matrix box 50. It has a simple design and comprehensive functions. Each part can be arranged according to the actual conditions of the small water body, and can realize a full set of infiltration weir functions from water distribution (water inlet end), ecological purification to water collection (drainage end). The ecological matrix box 50 adopts a modular setting, which is convenient for transportation, installation and replacement, so that the infiltration weir has the characteristics of easy assembly, maintenance and cleaning.

[0040] Specifically, the cushion layer 20 is usually made of high-strength, corrosion-resistant materials, such as reinforced plastic or lightweight concrete, so that it can serve as the basis of the infiltration weir, effectively bear the weight of all components, and ensure the stability of the system inside the small micro water body; usually, the cushion layer 20 is arranged at the bottom of the small micro water body.

[0041] The water distribution flower wall 30 is the water inlet part of the infiltration weir, and is provided with a number of uniformly designed water distribution ports 31 to ensure uniform flow of water into the ecological matrix box 50, thereby improving purification efficiency and preventing premature clogging or wear of some areas; in some embodiments, the water distribution flower wall 30 is made of brick masonry, which has high strength and stability, can ensure the durability and service life of the water distribution flower wall 30, and the brick masonry structure is simple and easy to construct and install; in a specific embodiment, the water inlet method of the water distribution flower wall 30 is bottom water inlet, that is, the water distribution port 31 is arranged at the lower part of the water distribution flower wall 30.

[0042] The water-collecting flower wall 40 is the water outlet part of the infiltration weir. In actual layout, it is usually connected to the water-distributing flower wall 30 through a connecting wall, so that the water-collecting flower wall 40, the water-distributing flower wall 30, the connecting wall and the cushion layer 20 form an upwardly open accommodation space, and the accommodation space is used to install the ecological matrix box 50; the water-collecting flower wall 40 is provided with a plurality of uniformly designed water collection ports 41 to achieve uniform outflow of purified water, so that the entire system can maintain hydrodynamic balance; in some embodiments, the water-collecting flower wall 40 also adopts brickwork; in a specific embodiment, the water outlet mode of the water-collecting flower wall 40 is upper water outlet, that is, the water distribution port 31 is arranged on the upper part of the water-collecting flower wall 40.

[0043] The ecological matrix box 50 is the water purification part of the infiltration weir, which includes a solid box frame 51 and an internal multi-layer ecological matrix layer 52; the box frame 51 has high strength and bearing capacity, which can ensure the stability and durability of the box. By setting the box frame 51, the ecological matrix box 50 becomes an independent module, which is convenient for overall lifting and replacement, and improves the flexibility of the infiltration weir; the ecological matrix layer 52 provides purification function for different pollutants, has good adsorption, filtration and biodegradation functions, and can effectively remove pollutants in the water.

[0044] Reference Figure 5 As shown, the ecological matrix layer 52 includes several ecological filler layers stacked in sequence from bottom to top. The ecological filler layer includes at least one or more of a gravel layer 521 , a ceramsite layer 522 , and a zeolite layer 523 .

[0045] Specifically, the ecological matrix layer 52 is composed of multiple ecological filler layers, and different ecological fillers play different roles in the purification process. The ecological matrix layer 52 includes one or more of a gravel layer 521, a ceramsite layer 522, and a zeolite layer 523. Among them, the gravel layer 521 is usually arranged at the bottom of the ecological matrix box 50, and its main function is to provide a larger gap to ensure the smoothness of the water flow, and the particle size specification is 20-40mm; the ceramsite layer 522 is usually arranged in the middle of the ecological matrix box 50, and its main function is to provide good adsorption and biodegradability. Ceramsite is lighter, and in order to prevent floating, it is arranged in the middle of the ecological matrix box 50, and a good ventilation layer is formed through the gaps between the fillers. The particle size specification is 20-40mm; the zeolite layer 523 is usually arranged at the top of the ecological matrix box 50, and its main function is to remove pollutants such as ammonia nitrogen in water. Zeolite has good adsorption and ion exchange properties, and can effectively remove pollutants such as ammonia nitrogen in water, and the particle size specification is 20-40mm. In other embodiments, in order to better meet different water purification needs, different types of ecological filler layers can also be selected. For example, for wastewater with serious heavy metal pollution, natural minerals with good adsorption performance can be selected as ecological fillers; for wastewater with serious organic pollution, activated carbon with good biodegradability can be selected as ecological fillers. In the later stage, according to the different water quality, the ecological filler layer with better pollutant removal effect can be selected.

[0046] Reference Figure 4 As shown, it also includes a cover plate 60, which is detachably and hermetically connected to the water distribution flower wall 30, and the cover plate 60 is detachably and hermetically connected to the water collection flower wall 40.

[0047] Specifically, by adding a detachable or movably connected cover plate 60 on the top of the infiltration weir, the ecological matrix box 50 can be conveniently hoisted, installed and replaced from the top. At the same time, the integrity of the infiltration weir can be enhanced, so that water flows only from the side of the water distribution flower wall 30 and flows out from the side of the water collection flower wall 40, thereby ensuring the purification effect; in the specific implementation, the cover plate 60 is selected from structural components with high strength and bearing capacity, which can withstand greater pressure and load to ensure the stability and durability of the system, and it also has good sealing performance after installation, which can effectively prevent water and impurities from entering the inside of the infiltration weir from the top; in a specific embodiment, a single cover plate 60 is about 150 mm thick and about 1500 mm long, and a high-strength concrete precast panel is used.

[0048] In a specific embodiment, the box frame 51 includes a steel cage 511 and a mesh 512 arranged on the surface of the steel cage 511 structure. The steel cage 511 is also provided with lifting rings 513 at the top of the four corners on the side away from the cushion layer 20, and the overall lifting of the ecological matrix box 50 can be achieved through the lifting rings 513; the steel cage 511 is 1000mm long, 500mm wide, and 500mm high. The steel cage 511 is a rectangular structure. The steel cage 511 is welded by several φ8 steel bars, has high strength and bearing capacity, and can ensure the stability and durability of the box; the mesh 512 is 20*20mm, and the mesh 512 is welded by several φ4 iron wires; after the box frame 51 is welded as a whole, it is galvanized as a whole to improve the corrosion resistance and service life of the box. In the present embodiment, a plurality of the water distribution ports 31 are arranged in a linear array along the length direction of the water distribution flower wall 30, and the array line of the water distribution ports 31 is located on the water distribution flower wall 30 close to the cushion layer 20; the distance between the bottom of the water distribution port 31 and the bottom of the water distribution flower wall 30 is 120 mm, the distance between any two adjacent water distribution ports 31 is 500 mm, and the length of a single water distribution port 31 is 120 mm and the width is 120 mm. In the present embodiment, a plurality of the water collection ports 41 are arranged in a linear array along the length direction of the water collection flower wall 40, and the array of the water collection ports 41 is located on the water collection flower wall 40 away from the cushion layer 20. The distance between the top of the water collection port 41 and the top of the water collection flower wall 40 is 120 mm, the distance between any two adjacent water collection ports 41 is 500 mm, and the length of a single water collection port 41 is 120 mm and the width is 120 mm.

[0049] The effect of using the infiltration weir in this embodiment to purify small water bodies is shown in Table 1 and Figure 6 ;

[0050] Table 1

[0051] index COD <![CDATA[NH3-N]]> TP TN Influent water quality (mg / L) 50 5 0.5 10 Water quality of new infiltration weir effluent (mg / L) 32.5 3 0.2 6.5 Removal rate (%) 35％ 40％ 60％ 35％

[0052] The effect of using traditional infiltration weir (without water distribution and water collection, using gabion mesh + gravel) to purify small water bodies is shown in Table 2 and Figure 7 ;

[0053] Table 2

[0054] index COD <![CDATA[NH3-N]]> TP TN Influent water quality (mg / L) 50 5 0.5 10 Water quality of traditional infiltration weir effluent (mg / L) 40 4.25 0.35 8 Removal rate (%) 20％ 15％ 30％ 20％

[0055] The removal rate comparison between the infiltration weir in this embodiment and the traditional infiltration weir is shown in Table 3 and Figure 8 .

[0056] Table 3

[0057] index COD <![CDATA[NH3-N]]> TP TN Removal rate of new infiltration weir (%) 35％ 40％ 60％ 35％ Traditional infiltration weir removal rate (%) 20％ 15％ 30％ 20％ Difference (%) 15％ 25％ 30％ 15％

[0058] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A small water body in-situ purification filtration weir, characterized in that: include, A cushion layer (20) is arranged in the small micro water body; A water distribution wall (30) is arranged on the cushion layer (20), and a plurality of water distribution ports (31) are arranged on the water distribution wall (30); A water collection wall (40) is disposed on the cushion layer (20) and is spaced apart from the water distribution wall (30), and an accommodation space is defined between the water collection wall (40) and the water distribution wall (30); a plurality of water collection ports (41) are disposed on the water collection wall (40); An ecological matrix box (50) is arranged in the accommodating space, and the ecological matrix box (50) comprises a box frame (51) and an ecological matrix layer (52) arranged in the box frame (51).

2. The in-situ purification filtration weir for small and micro water bodies according to claim 1, characterized in that: The ecological matrix layer (52) comprises a plurality of ecological filler layers stacked in sequence from bottom to top.

3. The in-situ purification filtration weir for small and micro water bodies according to claim 2, characterized in that: The ecological filler layer comprises at least one or more of a gravel layer (521), a ceramsite layer (522), and a zeolite layer (523).

4. The in-situ purification filtration weir for small and micro water bodies according to claim 3, characterized in that: The gravel layer (521) is arranged at the bottom of the ecological matrix box (50), wherein the particle size of the gravel is 20-40 mm; the expanded clay layer (522) is arranged at the middle of the ecological matrix box (50), wherein the particle size of the expanded clay is 20-40 mm; the zeolite layer (523) is arranged at the top of the ecological matrix box (50), wherein the particle size of the zeolite is 20-40 mm.

5. The in-situ purification filtration weir for small and micro water bodies according to claim 1, characterized in that: It also comprises a cover plate (60), wherein the cover plate (60) is detachably and hermetically connected to the water distribution flower wall (30), and the cover plate (60) is detachably and hermetically connected to the water collection flower wall (40).

6. The in-situ purification filtration weir for small and micro water bodies according to claim 1, characterized in that: The box frame (51) comprises a steel cage (511) and a mesh (512) arranged on the structural surface of the steel cage (511), and the tops of the four corners of the steel cage (511) away from the cushion layer (20) are also provided with hanging rings (513).

7. The in-situ purification filtration weir for small and micro water bodies according to claim 6, characterized in that: The steel cage (511) is 1000 mm long, 500 mm wide and 500 mm high. The steel cage (511) is welded by a number of φ8 steel bars. The mesh size of the mesh (512) is 20*20 mm. The mesh (512) is welded by a number of φ4 iron wires.

8. The in-situ purification filtration weir for small and micro water bodies according to claim 1, characterized in that: A plurality of the water distribution ports (31) are arranged in a linear array along the length direction of the water distribution flower wall (30), and the array line of the water distribution ports (31) is located on the side of the water distribution flower wall (30) close to the cushion layer (20); a plurality of the water collection ports (41) are arranged in a linear array along the length direction of the water collection flower wall (40), and the array of the water collection ports (41) is located on the side of the water collection flower wall (40) far from the cushion layer (20).

9. The in-situ purification filtration weir for small and micro water bodies according to claim 8, characterized in that: The distance between the bottom of the water distribution port (31) and the bottom of the water distribution wall (30) is 120 mm, the distance between any two adjacent water distribution ports (31) is 500 mm, and the length of a single water distribution port (31) is 120 mm and the width is 120 mm.

10. The in-situ purification filtration weir for small and micro water bodies according to claim 8, characterized in that: The distance between the top of the water collection port (41) and the top of the water collection flower wall (40) is 120 mm, the distance between any two adjacent water collection ports (41) is 500 mm, and the length of a single water collection port (41) is 120 mm and the width is 120 mm.

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