Ecological ditch
By introducing floating beds, biological ropes and elastic ropes into ecological ditches, the problems of poor pollution prevention and control effects in rainy season and lack of water in aquatic plants in non-rainy seasons are solved, and efficient treatment of sewage and healthy growth of aquatic plants are achieved.
Patent Information
- Application Number
- CN202421588431.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-07
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-07
AI Technical Summary
The existing ecological ditches have poor prevention and control effects on agricultural non-point source pollution during the rainy season, and aquatic plants are prone to die of water shortage and death during the non-rainy season, which affects the sewage treatment effect.
An ecological ditche is designed including a floating bed, a biological rope and an elastic rope. The floating bed can be automatically lifted and lowered. The biological rope purifies the sewage through the biofilm. The elastic rope is combined with the floating bed lift to prevent the biological rope from being pulled out.
The sewage in the rainy and non-rainy seasons was effectively treated, the sewage purification effect was improved, and the survival of aquatic plants and sewage treatment capacity in the non-rainy seasons were ensured.
Smart Images
Figure CN222821363U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of agricultural non-point source pollution control, in particular to an ecological ditch. Background Art
[0002] Ecological ditches play a vital role in farmland facilities. They can take into account the drainage function of ditches and treat agricultural non-point source pollutants. The interception efficiency of ecological ditches for agricultural non-point source pollution is related to the water flow velocity and hydraulic retention time.
[0003] The utility model with the publication number CN220788316U discloses an ecological ditch, including a longitudinally extending ecological ditch frame, wherein the two opposite side walls of the ecological ditch frame are provided with horizontal partitions, the two partitions are connected by a grille, the two partitions are provided with vertical overflow weirs, and the partitions, overflow weirs and grilles extend along the length direction of the ecological ditch frame; the side walls, partitions and overflow weirs of the ecological ditch frame are enclosed to form a receiving cavity, a filler layer is provided at the bottom of the receiving cavity, and aquatic plants are planted on the filler layer; a plurality of biological ropes are suspended under the grille. The ecological ditch of the utility model divides the cross section of the ecological ditch frame into two layers, upper and lower, and effectively treats farmland drainage according to the difference in drainage volume in the rainy season and the non-rainy season, thereby improving the existing farmland non-point source pollution prevention and control effect.
[0004] As in the above technical solution, the cross section of the ecological ditch frame is divided into two layers, the upper and lower layers, and the drainage of farmland is effectively treated according to the difference in drainage volume between the rainy season and the non-rainy season, thereby improving the existing farmland non-point source pollution prevention and control effect. However, the height of the accommodating cavity used to plant green plants is fixed. In the rainy season with heavy precipitation, when the water level in the canal is much higher than the height of the plant in the accommodating cavity, the interception effect of farmland non-point source pollution here is reduced. On the contrary, in the season with less precipitation, when the water level in the canal is much lower than the set height of the accommodating cavity, the plants in the accommodating cavity are prone to lack of water and death, which is not conducive to the effective treatment of the water from the surrounding farmland. Utility Model Content
[0005] In view of this, the utility model proposes an ecological ditch, which effectively treats the water from the surrounding farmland according to the different amounts of water discharged into the ditch in the rainy season and the non-rainy season. When the rainy season comes, the drainage volume of the farmland increases, the water level in the ditch rises, and the floating bed automatically rises and falls with the water level. The sewage entering the ditch from the drain outlet can pass through the floating bed and flow under the floating bed, and then enter the biological rope area. The biofilm formed by the aggregation and attachment on the surface of the biological rope is used to purify the lower drainage of the ditch, thereby solving the technical problem that the existing ecological ditch has poor prevention and control effect on non-point source pollution in the rainy season. When it is not the rainy season, the floating bed still automatically rises and falls with the water level, so that the water in the ditch can contact the floating bed. The drainage from the farmland can reduce the content of suspended solids, nitrogen and phosphorus in the drainage through the adsorption effect of the roots of aquatic plants and the ecological purification function of aquatic plants, which can ensure the survival of aquatic plants in the non-rainy season and treat the sewage in the non-rainy season.
[0006] The technical solution of the utility model is achieved in this way:
[0007] The utility model provides an ecological ditch, which comprises a ditch, a floating bed, a biological rope and an elastic rope, wherein:
[0008] The floating bed is arranged in the ditch along a vertical sliding direction, and the top of the floating bed is used for planting aquatic plants;
[0009] The biological rope is provided in a plurality between the floating bed and the ditch, one end of the biological rope is fixedly connected to the bottom of the floating bed, and the other end is fixedly connected to the elastic rope;
[0010] The lower end of the elastic rope is fixedly connected to the bottom of the ditch.
[0011] On the basis of the above technical solution, preferably, the floating bed includes a bed body, columns and counterweights, wherein:
[0012] The bed is arranged in the water of the ditch, and the aquatic plants are planted on the bed;
[0013] The upright column vertically penetrates the bed and is slidably connected, and the lower end of the upright column is fixedly connected to the bottom of the ditch;
[0014] The counterweight block is fixedly arranged at the bottom of the bed body.
[0015] On the basis of the above technical solution, preferably, the column matrix is provided with a plurality of columns, and through holes are vertically provided at positions corresponding to the columns on the bed body, wherein:
[0016] The column passes through the corresponding through hole, and the diameter of the column is smaller than the inner diameter of the through hole.
[0017] On the basis of the above technical solution, preferably, the counterweight block is protruding downward in an arc shape at the bottom of the bed.
[0018] On the basis of the above technical solution, preferably, the ditch includes a ditch wall and a ditch bottom, wherein:
[0019] The trench walls are symmetrically arranged on both sides of the top of the trench bottom;
[0020] The lower end of the column is fixedly connected to the bottom of the ditch;
[0021] The lower end of the elastic rope is fixedly connected to the ditch bottom.
[0022] On the basis of the above technical solution, preferably, a drainage outlet is provided through the upper end of the ditch wall in a horizontal direction, and the ditch is connected to the farmland through the drainage outlet.
[0023] On the basis of the above technical solution, preferably, the ditch further includes a retaining wall, wherein:
[0024] The retaining wall is arranged at the end of the ditch along the water flow direction;
[0025] The retaining wall is fixedly arranged between the trench wall and the trench bottom;
[0026] The top of the retaining wall is horizontally aligned with the top of the trench wall.
[0027] On the basis of the above technical solution, preferably, the lower half of the retaining wall is a concrete wall, and the upper half is a permeable wall.
[0028] On the basis of the above technical solution, preferably, the biological rope includes a pull rope and a cloth ball, wherein:
[0029] One end of the pull rope is fixedly connected to the bed body, and the other end is fixedly connected to the elastic rope;
[0030] A plurality of the cloth balls are fixedly arranged on the pull rope, and the cloth balls are arranged equidistantly along the axial direction of the pull rope.
[0031] On the basis of the above technical solution, preferably, a plurality of countersunk holes are evenly distributed on the surface of the cloth ball.
[0032] Compared with the prior art, the ecological ditch of the utility model has the following beneficial effects:
[0033] (1) By setting up floating beds, biological ropes, and aquatic plants, it is convenient to effectively treat the water from surrounding farmland according to the different amounts of water discharged into the ditch during the rainy season and the non-rainy season. When the rainy season comes, the drainage volume of the farmland increases, the water level in the ditch rises, and the floating bed automatically rises and falls with the water level. The sewage entering the ditch from the outlet can flow through the floating bed and flow under the floating bed, and then enter the biological rope area. The biofilm formed by the adhesion on the surface of the biological rope purifies the drainage of the lower layer of the ditch, thereby solving the technical problem that the existing ecological ditch has poor prevention and control effect on non-point source pollution during the rainy season. When it is not rainy season, the floating bed still automatically rises and falls with the water level, so that the water in the ditch can contact the floating bed. The drainage from farmland can reduce the content of suspended solids, nitrogen and phosphorus in the drainage through the adsorption effect of the roots of aquatic plants and the ecological purification function of aquatic plants, which can not only ensure the survival of aquatic plants in the non-rainy season, but also treat sewage in the non-rainy season.
[0034] (2) By setting up biological ropes and elastic ropes, it is convenient to keep the biological rope in a vertical state, effectively intercept pollutants in the water, and improve the sewage treatment effect. At the same time, by setting up elastic ropes, it is convenient to coordinate the lifting of the floating bed, so that the biological rope is not easily broken.
[0035] (3) By evenly distributing a number of sink holes on the surface of the cloth ball, it is convenient for microorganisms to attach and is conducive to the growth of microorganisms on the cloth ball. BRIEF DESCRIPTION OF THE DRAWINGS
[0036] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0037] Figure 1 This is a plan view of an ecological ditch of the utility model;
[0038] Figure 2 for Figure 1 AA section view;
[0039] Figure 3 for Figure 2 BB section view;
[0040] Figure 4 This is a bottom view of the floating bed;
[0041] Figure 5 It is a side view of the biological rope;
[0042] In the figure: 1, ditch; 2, floating bed; 3, biological rope; 4, elastic rope; 5, farmland; 11, ditch wall; 12, ditch bottom; 13, retaining wall; 21, bed; 22, column; 23, counterweight; 24, aquatic plants; 31, pull rope; 32, cloth ball; 101, drain outlet; 201, through hole; 301, countersunk hole. DETAILED DESCRIPTION
[0043] The following will be combined with the specific implementation of the utility model to clearly and completely describe the technical solution in the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0044] like Figure 1-5 As shown, an ecological ditch of the utility model comprises a ditch 1, a floating bed 2, a biological rope 3 and an elastic rope 4.
[0045] Among them, the ditch 1 is used to collect drainage from the farmland 5, the floating bed 2 is set in the ditch 1 along the vertical sliding, and the top of the floating bed 2 is used to plant aquatic plants 24. When there is water in the ditch 1, the floating bed 2 floats in the water body, and the upper ends of the aquatic plants 24 planted thereon are exposed above the water surface. The aquatic plants 24 include one or more combinations of cattails, reeds, Vallisneria, soft water grass and foxtail algae.
[0046] Several biological ropes 3 are arranged between the floating bed 2 and the ditch 1. One end of the biological rope 3 is fixedly connected to the bottom of the floating bed 2, and the other end is fixedly connected to the elastic rope 4. The lower end of the elastic rope 4 is fixedly connected to the bottom of the ditch 1. Figure 2 As shown, when there is sufficient water in the ditch 1, the floating bed 2 floats in the water, and the biological rope 3 and the elastic rope 4 are in a vertical state. The biological rope 3 is used to intercept debris in the water. At the same time, the microorganisms attached to the biological rope 3 decompose the pollutants. The biological rope 3 can be any rope body parasitic with biological flora in the prior art, such as the biological rope disclosed in CN220788316U.
[0047] In the above structure, the biological rope 3 includes a pull rope 31 and a cloth ball 32, wherein one end of the pull rope 31 is fixedly connected to the bed body 21, and the other end is fixedly connected to the elastic rope 4; a plurality of cloth balls 32 are fixedly arranged on the pull rope 31, and the plurality of cloth balls 32 are equidistantly arranged along the axial direction of the pull rope 31; the cloth balls 32 are made of non-woven fabric, and the porous structure of the non-woven fabric is conducive to the growth of microorganisms, decomposition of pollutants, and purification of water bodies.
[0048] To facilitate microbial attachment, Figure 5As shown, a plurality of countersunk holes 301 are evenly distributed on the surface of the cloth ball 32. The countersunk holes 301 are used to increase the surface area of the cloth ball 32, providing convenient conditions for the attachment of microorganisms and facilitating the rapid development of biological flora.
[0049] The floating bed 2 includes a bed body 21, columns 22 and counterweights 23, wherein the bed body 21 is arranged in the ditch 1, and aquatic plants 24 are planted on the bed body 21; the columns 22 vertically penetrate the bed body 21 and are slidably connected, and the lower ends of the columns 22 are fixedly connected to the bottom of the ditch 1; the counterweights 23 are fixedly arranged at the bottom of the bed body 21.
[0050] like Figure 3 As shown, the counterweight 23 is used to ensure that the floating bed 2 can float up and down according to the water level. At the same time, the counterweight can ensure that the floating bed 2 is always located 15-20 cm below the water surface. At the same time, the upper ends of the aquatic plants 24 planted on the floating bed 2 are exposed above the water surface.
[0051] At the same time, in order to reduce the lateral impact of the water flow on the floating bed 2, the counterweight block 23 is protruded downward in an arc shape at the bottom of the bed body 21, which can effectively reduce the water resistance and reduce the impact.
[0052] like Figure 4 As shown, a plurality of columns 22 are arranged in a matrix, and through holes 201 are vertically provided at positions corresponding to the columns 22 on the bed body 21, wherein the columns 22 pass through the corresponding through holes 201, and the diameter of the columns 22 is smaller than the inner diameter of the through holes 201. When the floating bed 2 floats up and down, the bed body 21 slides up and down along the columns 22 through the through holes 201.
[0053] like Figure 2-3 The ditch 1 shown includes a ditch wall 11, a ditch bottom 12 and a retaining wall 13, wherein the ditch wall 11 is symmetrically arranged on both sides of the top of the ditch bottom 12; the lower end of the column 22 is fixedly connected to the ditch bottom 12; the lower end of the elastic rope 4 is fixedly connected to the ditch bottom 12; the upper end of the ditch wall 11 is horizontally penetrated with a drainage outlet 101, the ditch 1 is connected to the farmland 5 through the drainage outlet 101, and the drainage of the farmland 5 can be introduced into the ditch 1 through the drainage outlet 101.
[0054] The retaining wall 13 is arranged at the end of the ditch 1 along the water flow direction to intercept sewage. Figure 2 As shown, the arrow direction is the water flow direction. Specifically, the retaining wall 13 is fixedly arranged between the ditch wall 11 and the ditch bottom 12, and the top of the retaining wall 13 is horizontally aligned with the top of the ditch wall 11. The lower half of the retaining wall 13 is built with concrete to form a concrete wall, and the upper half is a permeable wall. The permeable wall is built with zeolite wire gabions. The intercepted sewage is discharged to the outside after passing through the permeable wall. In the process, the permeable wall filters the sewage.
[0055] The method of using an ecological ditch of the utility model is as follows:
[0056] Firstly, in view of the difference in the amount of water discharged into the ditch 1 during the rainy season and the non-rainy season, the water from the surrounding farmland 5 is effectively treated.
[0057] When the rainy season comes, the drainage volume of the farmland 5 increases, the water level in the ditch 1 rises, and the floating bed 2 rises and falls with the change of the water level. The sewage entering the ditch 1 from the drain outlet 101 flows through the floating bed 2 and then flows under the floating bed 2 and into the biological rope 3 area. The biological flora or biofilm formed by the aggregation and attachment on the surface of the biological rope 3 purifies the drainage of the lower layer of the ditch 1.
[0058] When it is not the rainy season, the floating bed 2 still rises and falls with the change of water level, so that the water in the channel can contact the floating bed 2. The drainage of farmland 5 can reduce the content of suspended solids, nitrogen and phosphorus in the drainage through the adsorption effect of the roots of aquatic plants 24 and the ecological purification function of aquatic plants 24, which can ensure the survival of aquatic plants 24 in the non-rainy season and treat sewage in the non-rainy season.
[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An ecological ditch, comprising a ditch (1), characterized in that: It also includes a floating bed (2), a biological rope (3) and an elastic rope (4), wherein: The floating bed (2) is arranged in the ditch (1) in a vertically sliding manner, and the top of the floating bed (2) is used to plant aquatic plants (24); A plurality of biological ropes (3) are arranged between the floating bed (2) and the ditch (1), one end of the biological rope (3) is fixedly connected to the bottom of the floating bed (2), and the other end is fixedly connected to the elastic rope (4); The lower end of the elastic rope (4) is fixedly connected to the bottom of the ditch (1).
2. An ecological ditch as claimed in claim 1, characterized in that: The floating bed (2) comprises a bed body (21), columns (22) and counterweights (23), wherein: The bed (21) is arranged in the water body of the ditch (1), and the aquatic plants (24) are planted on the bed (21); The upright column (22) vertically penetrates the bed (21) and is slidably connected thereto, and the lower end of the upright column (22) is fixedly connected to the bottom of the ditch (1); The counterweight block (23) is fixedly arranged at the bottom of the bed body (21).
3. An ecological ditch as claimed in claim 2, characterized in that: The matrix of the columns (22) is provided with a plurality of columns, and through holes (201) are vertically provided at positions on the bed (21) corresponding to the columns (22), wherein: The column (22) passes through the corresponding through hole (201), and the diameter of the column (22) is smaller than the inner diameter of the through hole (201).
4. An ecological ditch as claimed in claim 3, characterized in that: The counterweight block (23) is protruding downward in an arc shape at the bottom of the bed body (21).
5. The ecological ditch according to claim 2, characterized in that: The ditch (1) comprises a ditch wall (11) and a ditch bottom (12), wherein: The groove wall (11) is symmetrically arranged on both sides of the top of the groove bottom (12); The lower end of the column (22) is fixedly connected to the groove bottom (12); The lower end of the elastic rope (4) is fixedly connected to the groove bottom (12).
6. An ecological ditch as claimed in claim 5, characterized in that: A drainage outlet (101) is provided through the upper end of the ditch wall (11) in the horizontal direction, and the ditch (1) is connected to the farmland (5) through the drainage outlet (101).
7. An ecological ditch as claimed in claim 6, characterized in that: The ditch (1) further comprises a retaining wall (13), wherein: The retaining wall (13) is arranged at the end of the ditch (1) along the water flow direction; The retaining wall (13) is fixedly arranged between the trench wall (11) and the trench bottom (12); The top of the retaining wall (13) is horizontally aligned with the top of the trench wall (11).
8. An ecological ditch as claimed in claim 7, characterized in that: The lower half of the retaining wall (13) is a concrete wall, and the upper half is a permeable wall.
9. The ecological ditch according to claim 2, characterized in that: The biological rope (3) comprises a pull rope (31) and a cloth ball (32), wherein: One end of the pull rope (31) is fixedly connected to the bed body (21), and the other end is fixedly connected to the elastic rope (4); A plurality of the cloth balls (32) are fixedly arranged on the pull rope (31), and the plurality of the cloth balls (32) are arranged equidistantly along the axial direction of the pull rope (31).
10. An ecological ditch as claimed in claim 9, characterized in that: A plurality of countersunk holes (301) are evenly distributed on the surface of the cloth ball (32).
Citation Information
Patent Citations
Ecological ditch
CN220788316U