An ecological filter dam

Abstract

This utility model belongs to the field of farmland water conservancy and sewage treatment technology, specifically disclosing an ecological filter dam, including a filter dam base plate and partition walls and retaining walls set above the filter dam base plate. Several partition walls and retaining walls are provided, arranged in a rectangular array. A wing wall is fixed to the outermost partition wall. Two retaining walls are symmetrically fixed between two adjacent partition walls, forming a filling trough. A filter grid is fixed to the inner side of the retaining wall. The filling trough is filled with filter media. A top beam is fixed to the outer side of the filling trough. A cover plate is set above the filling trough and fixed to the top beam. The retaining walls and filter grid are used to filter large particulate impurities, and the filter media are used to adsorb, capture, and retain organic and inorganic pollutants. This utility model uses physical interception of filter grids and chemical adsorption through filter media to achieve multiple purification, significantly improving water quality. The rectangular array arrangement of the partition walls and retaining walls enhances the overall impact resistance and adapts to different hydraulic loads.

Description

Technical Field

[0001] This utility model relates to the fields of farmland irrigation and sewage treatment technology, specifically an ecological filter dam. Background Technology

[0002] The rapid development of aquaculture has led to a large amount of wastewater discharge, which contains nutrients such as nitrogen and phosphorus, severely impacting aquatic ecosystems. With water pollution becoming increasingly serious, especially in industries like aquaculture, wastewater treatment has become particularly important.

[0003] Ecological filter dams are composite water treatment facilities that combine engineering structures with ecological technologies. They are mainly used to purify water bodies, slow down water flow, intercept pollutants, and promote the restoration of ecosystems. However, traditional filter dams have limited functions and mainly rely on physical filtration, typically using bar filtration. This method can only remove large particulate impurities and has limited purification capacity, failing to effectively remove suspended solids from river sewage. Utility Model Content

[0004] The purpose of this invention is to provide an ecological filter dam that solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an ecological filter dam, comprising a filter dam base plate and partition walls and retaining walls disposed above the filter dam base plate. Several partition walls and retaining walls are provided, arranged in a rectangular array. A wing wall is fixed to the outermost partition wall. Two retaining walls are symmetrically fixed between adjacent partition walls, forming a filling trough. A filter grid is fixed to the inner side of the retaining wall. Filter media is filled in the filling trough. A top beam is fixed to the outer side of the filling trough. A cover plate is provided above the filling trough and fixed to the top beam. Four partition walls are provided, with a retaining wall between every two adjacent partition walls, for a total of six retaining walls. The retaining walls and filter grids are used to filter large particulate impurities, and the filter media are used to adsorb, capture, and retain organic and inorganic pollutants.

[0006] As a preferred embodiment of this invention, drainage holes are provided on the wing wall to facilitate the drainage of groundwater behind the wing wall, reduce water pressure behind the wall, and maintain the stability of the wing wall.

[0007] As a preferred embodiment of this invention, the retaining wall is provided with a plurality of drainage holes, which are used to maintain the flow of water.

[0008] As a preferred embodiment of this invention, the filter screen is made of polyethylene or fiberglass to ensure that the filter screen has good corrosion resistance and UV resistance.

[0009] As a preferred embodiment of this invention, the filter media is composed of one or more of activated carbon, zeolite, graded crushed stone and ceramsite, which can not only effectively improve the filtration effect, but also enhance the ecological function of the drainage system.

[0010] As a preferred embodiment of this invention, the cover plate is made of fiberglass grating, making it suitable for long-term outdoor use.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This application employs physical interception via filter grilles, achieving multiple purification processes through chemical adsorption of filter media, significantly improving water quality. The rectangular array arrangement of partitions and retaining walls enhances overall impact resistance and adapts to varying hydraulic loads. Leakage holes and drainage holes maintain water flow, avoiding the ecological barrier effects of traditional dams. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the structure for removing the cover plate in this utility model;

[0015] Figure 3 This is a schematic diagram of the structure for removing the packing material according to this utility model;

[0016] Figure 4 This is a top view of the structure of this utility model.

[0017] In the diagram: 100, filter dam bottom plate; 200, partition wall; 300, wing wall; 301, drainage hole; 400, retaining wall; 500, packing trough; 600, filter fence; 700, filter packing; 800, top beam; 900, cover plate. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] Please see Figure 1-4 This utility model provides a technical solution: an ecological filter dam, including a filter dam base plate 100 and partition walls 200 and retaining walls 400 arranged above the filter dam base plate 100. There are several partition walls 200 and retaining walls 400 arranged in a rectangular array. A wing wall 300 is fixed on the outermost partition wall 200. Two retaining walls 400 are symmetrically fixed between two adjacent partition walls 200 to form a filling trough 500. A filter grid 600 is fixed inside the retaining wall 400. The filling trough 500 is filled with filter filler 700. A top beam 800 is fixed outside the filling trough 500. A cover plate 900 is arranged above the filling trough 500 and fixed on the top beam 800. There are four partition walls 200, and a baffle wall 400 is set between every two adjacent partition walls 200. There are a total of six baffle walls 400. The baffle walls 400 and the filter grid 600 are used to filter large particulate impurities, and the filter media 700 is used to adsorb, capture and retain organic and inorganic pollutants.

[0022] Furthermore, the wing wall 300 is provided with drainage holes 301 to facilitate the drainage of groundwater behind the wing wall 300, reduce the water pressure behind the wall, and maintain the stability of the wing wall 300.

[0023] Furthermore, the retaining wall 400 is provided with a number of drainage holes, which are used to maintain the flow of water.

[0024] Furthermore, the filter screen 600 is made of polyethylene or fiberglass to ensure that the filter screen 600 has good corrosion resistance and UV resistance.

[0025] Furthermore, the filter media 700 is composed of one or more of activated carbon, zeolite, graded crushed stone and ceramsite, which can not only effectively improve the filtration effect, but also enhance the ecological function of the drainage system.

[0026] Furthermore, the cover plate 900 is made of fiberglass grating, making it suitable for long-term outdoor use.

[0027] In summary, when in use, this invention is installed between the sedimentation and purification tank and the aeration tank, and between the aeration tank and the fish, bacteria, and algae pond. Water flows through the drainage holes on the baffle wall 400 into the packing trough 500. The filter screen 600 intercepts large suspended particles. The array layout of the baffle wall 400 and the partition wall 200 slows down the water flow and promotes the natural settling of particles. Water seeps into the packing trough 500, where the filter media 700 filled with activated carbon, zeolite, and ceramsite removes heavy metals and dissolved organic matter through adsorption. The drainage holes 301 of the wing wall 300 drain groundwater behind the wall, reducing hydrostatic pressure and preventing structural instability. The cover plate 900 allows air exchange, promotes aerobic microbial activity, and prevents packing material loss.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An ecological filtration dam, characterized in that: The filter includes a filter dam base plate (100) and a partition wall (200) and a retaining wall (400) set above the filter dam base plate (100). There are several partition walls (200) and retaining walls (400). The partition walls (200) are arranged in a rectangular array. A wing wall (300) is fixed on the outermost partition wall (200). Two retaining walls (400) are symmetrically fixed between two adjacent partition walls (200) to form a filling trough (500). A filter grid (600) is fixed on the inner side of the retaining wall (400). The filling trough (500) is filled with filter packing (700). A top beam (800) is fixed on the outer side of the filling trough (500). A cover plate (900) is set above the filling trough (500) and the cover plate (900) is fixed on the top beam (800).

2. An ecological filter dam according to claim 1, characterized in that: Drainage holes (301) are provided on the wing wall (300).

3. An ecological filter dam according to claim 1, characterized in that: The retaining wall (400) has several drainage holes.

4. An ecological filter dam according to claim 1, characterized in that: The filter screen (600) is made of polyethylene or fiberglass.

5. An ecological filter dam according to claim 1, characterized in that: The filter media (700) is composed of one or more of activated carbon, zeolite, graded crushed stone and ceramsite.

6. An ecological filter dam according to claim 1, characterized in that: The cover plate (900) is made of fiberglass grating.

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