CN113800642A - Ecological interception ditch for farmland runoff pollution - Google Patents
Ecological interception ditch for farmland runoff pollution Download PDFInfo
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- CN113800642A CN113800642A CN202111134542.4A CN202111134542A CN113800642A CN 113800642 A CN113800642 A CN 113800642A CN 202111134542 A CN202111134542 A CN 202111134542A CN 113800642 A CN113800642 A CN 113800642A
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- silt
- ditch
- interception
- filter
- ecological
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biotechnology (AREA)
- Botany (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a farmland runoff pollution ecological interception ditch which comprises a revetment, wherein an interception device is fixedly connected to the inner surface of the revetment, a planting groove is formed in the top surface of the interception device, a silt bin is fixedly connected to the bottom surface of the interception device, and a silt degradation layer is arranged on the bottom surface of the silt bin. According to the ecological intercepting ditch, the first filter screen and the filter board on the intercepting device can filter pollutants in the ecological intercepting ditch, when water in the ditch flows through the adsorption tank, the substances in the adsorption tank can greatly adsorb harmful substances such as nitrogen, phosphorus and the like in the water, so that the content of the nitrogen and phosphorus in the water is effectively reduced, silt can be generated after a long time due to the existence of silt in the ecological intercepting ditch, the water quality is polluted, when the silt bin at the bottom of the intercepting device flows along with water flow, the water flow can pass through the second filter screen, the silt is left in the silt bin, and the silt degradation layer at the bottom of the silt bin can slowly degrade the silt, so that the hazardous silt is eliminated.
Description
Technical Field
The invention relates to the technical field of ecological interception ditches, in particular to an ecological interception ditch for farmland runoff pollution.
Background
The eutrophication of water bodies is a ubiquitous environmental protection problem in all countries in the world, and is in a ubiquitous and increasingly serious development situation with the rapid development of socioeconomic performance in China. Pollution sources causing eutrophication of water bodies can be divided into point-source pollution and non-point-source pollution, wherein the non-point-source pollution accounts for two thirds of the total pollution amount, and the contribution rate of agricultural activities to the non-point-source pollution is as high as 75%. Therefore, the effective control of the pollution of nitrogen and phosphorus in the farmland to the receiving water body becomes important content in the aspect of agricultural non-point source pollution control research. In China, drainage ditches are ubiquitous in farmlands, and mainly comprise two types: soil ditches and concrete ditches. The main problems of the soil ditch are that water and soil loss and clustered weeds are easily produced, and both pollute the receiving water body; the main problems of the concrete ditch are that the water speed is high, and the silt in the drainage water is difficult to completely subside; and secondly, the sewage is lack of plants and microorganisms and cannot absorb, adsorb and degrade nitrogen and phosphorus in the sewage.
At present, receive more and more attention to the construction of ecological interception irrigation canals and ditches, what present ecological interception ditch mostly adopted plants green absorption plant, use the plant to come nitrogen phosphorus material absorption in the irrigation water in the irrigation canals and ditches, but the adsorption effect of this kind of green plant is limited, and there is the plant of planting probably not having adapted the ecology in some areas, the rainwater of ecological interception ditch inslot when rainy season is probably surplus, can lead to the rainwater to fill in the middle of the farmland backward, the water level probably descends in dry season, be unfavorable for the irrigation, therefore the water level in the ecological interception ditch and ditches should be controlled.
Therefore, it is necessary to design an ecological interception ditch for runoff pollution of farmland to solve the above problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a farmland runoff pollution ecological interception ditch.
In order to achieve the purpose, the invention adopts the following technical scheme:
an ecological interception ditch for farmland runoff pollution comprises a revetment, wherein an interception device is fixedly connected to the inner surface of the revetment, a planting groove is formed in the top surface of the interception device, a silt bin is fixedly connected to the bottom surface of the interception device, a silt degradation layer is arranged on the bottom surface of the silt bin, a second filter screen is arranged on one side of the silt bin, a first filter screen is arranged on one side of the interception device, an adsorption tank is arranged on the other side of the interception device, a filter plate is fixedly arranged between the first filter screen and the adsorption tank on the interception device, a through filter hole is formed in the filter plate, a strip-shaped shielding plate is slidably connected to the side surface of the filter plate, a lifting bin is arranged on the top surface of the interception device, a guide rod is fixedly connected between the inner top surface and the inner bottom surface of the lifting bin, and a servo motor is fixedly connected to the inner top surface of the lifting bin, the output end of the servo motor is fixedly connected with a lead screw, one end, far away from the servo motor, of the lead screw is rotatably connected to the inner bottom surface of the lifting bin, one side of a movable plate is sleeved on the outer edge of the guide rod, the other side of the movable plate is in threaded connection with the lead screw, the lifting rod is fixedly connected to the center of the bottom surface of the movable plate, and the bottom surface of the lifting rod is fixedly connected to the center of the top surface of the strip-shaped shielding plate.
Preferably, the first filter and the second filter have different filter mesh pore sizes.
Preferably, a filter screen is installed on the inner surface of the through filter hole.
Preferably, green adsorption plants are planted on the slope body of the slope protection.
Preferably, nitrogen and phosphorus adsorption substances are placed in the adsorption tank.
Preferably, the planting groove is planted with adsorption plants.
The invention has the following beneficial effects:
1. by arranging the intercepting device, the first filter screen and the filter plate on the intercepting device can filter pollutants in the ecological intercepting ditch, when water in the ditch flows through the adsorption tank, substances in the adsorption tank can greatly adsorb harmful substances such as nitrogen, phosphorus and the like in the water, the content of the nitrogen and phosphorus in the water is effectively reduced, secondary irrigation is facilitated, and the direct discharge standard can be achieved;
2. through setting up lift storehouse, bar sunshade sliding connection is in the side of filter, open the servo motor back lead screw in the lift storehouse and rotate, one side of the movable plate on the lead screw outer fringe is cup jointed on the guide bar, consequently the movable plate can be followed vertical direction and removed and can not be along with the lead screw is rotatory, the movable plate drives the bar sunshade through the lifter when removing along vertical direction and removes, can cover or open the through-going filtration pore on the filter, can adjust the velocity of flow of ecological interception ditch normal water, convenient irrigation.
Drawings
FIG. 1 is a schematic front view of an ecological interception ditch for farmland runoff pollution, which is provided by the invention;
FIG. 2 is a schematic side view and sectional structure view of an intercepting device of an ecological intercepting ditch for farmland runoff pollution, which is provided by the invention;
FIG. 3 is a schematic front sectional view of a filter plate of the ecological interception ditch for farmland runoff pollution, which is provided by the invention;
in the figure: 1 bank protection, 2 intercepting device, 3 lifters, 4 silt storehouses, 5 first filter screens, 6 filter boards, 7 adsorption tanks, 8 planting grooves, 9 silt degradation layers, 10 second filter screens, 11 guide bars, 12 servo motors, 13 lead screws, 14 moving plates, 15 lifter bars, 16 bar-shaped shielding plates and 17 through filter holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-3, an ecological interception ditch for farmland runoff pollution comprises a slope protection 1, an interception device 2 is fixedly connected to the inner surface of the slope protection 1, a planting groove 8 is arranged on the top surface of the interception device 2, a silt bin 4 is fixedly connected to the bottom surface of the interception device 2, a silt degradation layer 9 is arranged on the bottom surface of the silt bin 4, the silt degradation layer 9 can degrade silt generated by the mud in the ecological interception ditch to prevent water flow from being polluted by the silt, a second filter screen 10 is arranged on one side of the silt bin 4, the silt can be filtered and stored in the silt bin 4 by the second filter screen 10, a first filter screen 5 is arranged on one side of the interception device 2, the first filter screen 5 filters pollutants in the water flow, an adsorption tank 7 is arranged on the other side of the interception device 2, and a filter screen 6 is fixedly arranged between the first filter screen 5 and the adsorption tank 7 on the interception device 2, the filter plate 6 is provided with a through filter hole 17, the side surface of the filter plate 6 is connected with a strip-shaped shield plate 16 in a sliding manner, the top surface of the intercepting device 2 is provided with a lifting bin 3, a guide rod 11 is fixedly connected between the inner top surface and the inner bottom surface of the lifting bin 3, the inner top surface of the lifting bin 3 is fixedly connected with a servo motor 12, the output end of the servo motor 12 is fixedly connected with a screw rod 13, one end of the screw rod 13, far away from the servo motor 12, is rotatably connected to the inner bottom surface of the lifting bin 3, the outer edge of the guide rod 11 is sleeved with one side of a movable plate 14, the other side of the movable plate 14 is in threaded connection with the screw rod 13, the movable plate 14 is ensured not to rotate along with the screw rod 13 but to move up and down along with the rotation of the screw rod 13, the center position of the bottom surface of the movable plate 14 is fixedly connected with a lifting rod 15, the bottom surface of the lifting rod 15 is fixedly connected with the center position of the top surface of the strip-shaped shield plate 16, when the strip-shaped shield plate 16 is driven by the lifting rod 15 to move up, the sunshade on the bar sunshade 16 can cover through-going filtration hole 17 on the filter 6, and rivers can not pass through, and when bar sunshade 16 was along with the 15 downstream of lifter, the sunshade on the bar sunshade 16 can be opened through-going filtration hole 17 on the filter 6, and rivers can normally pass through, the effectual speed of rivers in the ecological interception ditch of control.
Referring to fig. 2, the first filter 5 and the second filter 10 have different filter mesh sizes.
Referring to fig. 3, the filter net is installed on the inner surface of the through filter hole 17, the through filter hole 17 has a secondary filtering effect, and the pollutants which are not filtered by the first filter net 5 can be filtered, thereby ensuring the filtering effect.
Referring to fig. 1, planting on the slope body of bank protection 1 has green absorption plant, and green absorption plant can adsorb the nitrogen phosphorus of aquatic through the effect of plant self, has improved nitrogen phosphorus absorption efficiency, and green absorption plant can improve the environmental protection rate of ecological interception ditch again simultaneously.
Referring to fig. 2, nitrogen and phosphorus adsorbing substances are placed in the adsorption tank 7, and can fully absorb nitrogen and phosphorus substances in the water flow of the ecological interception ditch, so that the content of the nitrogen and phosphorus substances in the water flow is effectively reduced.
Referring to fig. 2, planting in planting groove 8 has the adsorption plant, and the adsorption plant can adsorb the nitrogen phosphorus of aquatic through the effect of plant self, has improved nitrogen phosphorus absorption efficiency, and the environmental protection rate that the ecological interception ditch can be improved to the adsorption plant again simultaneously.
The specific working principle of the invention is as follows:
the first filter screen 5 and the filter screen 6 on the intercepting device 2 can filter pollutants in the ecological intercepting ditch, when water in the ditch flows through the adsorption tank 7, nitrogen and phosphorus adsorption substances in the adsorption tank 7 can greatly adsorb harmful substances such as nitrogen and phosphorus in the water, the nitrogen and phosphorus content in the water is effectively reduced, secondary irrigation is facilitated, and the standard of direct discharge can be achieved, as silt possibly exists in the ecological intercepting ditch, the silt can be generated to pollute the water after a long time, the silt bin 4 at the bottom of the intercepting device 2 can enable the water flow to pass through the second filter screen 10 and the silt to be left in the silt bin 4 when the silt flows along with the water flow, the silt degradation layer 9 at the bottom of the silt bin 4 can slowly degrade the silt to eliminate the harmfulness of the silt, the planting groove 8 at the top of the intercepting device 2 is planted with adsorption plants, and the adsorption plants can adsorb nitrogen and phosphorus in the water through the self action of the plants, the nitrogen and phosphorus absorption efficiency is improved, and the environmental protection rate of the ecological interception ditch can be improved by adsorbing plants;
the bar-shaped shielding plate 16 is connected to the side surface of the filtering plate 6 in a sliding manner, the servo motor 12 in the lifting bin 3 is opened to drive the screw rod 13 to rotate, one side of the moving plate 14 which is sleeved on the outer edge of the screw rod 13 in a threaded manner is arranged, the other side of the moving plate 14 is sleeved on the outer edge of the guide rod 11 in a sliding manner, so that the moving plate 14 can move in the vertical direction without rotating along with the screw rod 13, the bar-shaped shielding plate 16 is driven by the lifting rod 15 to move upwards when the moving plate 14 moves upwards, the shielding plate on the bar-shaped shielding plate 16 can cover the through filtering holes 17 on the filtering plate 6, the covered through filtering holes 17 cannot pass water flow, the bar-shaped shielding plate 16 and the through filtering holes 17 are matched to adjust the flow rate of water in the ecological intercepting ditch, is convenient for irrigation.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The ecological interception ditch for farmland runoff pollution comprises a revetment (1) and is characterized in that an interception device (2) is fixedly connected to the inner surface of the revetment (1), a planting groove (8) is formed in the top surface of the interception device (2), a silt bin (4) is fixedly connected to the bottom surface of the interception device (2), a silt degradation layer (9) is arranged on the bottom surface of the silt bin (4), a second filter screen (10) is installed on one side of the silt bin (4), a first filter screen (5) is installed on one side of the interception device (2), an adsorption tank (7) is installed on the other side of the interception device (2), a filter plate (6) is fixedly installed between the first filter screen (5) and the adsorption tank (7) on the interception device (2), a through filter hole (17) is formed in the filter plate (6), and a strip-shaped shielding plate (16) is slidably connected to the side surface of the filter plate (6), the top surface of intercepting device (2) is provided with lift storehouse (3), fixedly connected with guide bar (11) between the interior top surface of lift storehouse (3) and the interior bottom surface, interior top surface fixedly connected with servo motor (12) of lift storehouse (3), output fixedly connected with lead screw (13) of servo motor (12), the interior bottom surface of connection in lift storehouse (3) is rotated to the one end that servo motor (12) were kept away from in lead screw (13), the one side of movable plate (14) has been cup jointed in the outer fringe of guide bar (11), the opposite side and lead screw (13) threaded connection of movable plate (14), the bottom surface central point of movable plate (14) puts fixedly connected with lifter (15), the central point of bottom surface and bar sunshade (16) top surface of lifter (15) puts fixed connection.
2. The ecological interception ditch for farmland runoff pollution according to claim 1, characterized in that the first filter screen (5) and the second filter screen (10) have different filter screen pore sizes.
3. The ecological interception ditch for farmland runoff pollution according to claim 1, characterized in that a filter screen is installed on the inner surface of the through filter hole (17).
4. The ecological interception ditch for farmland runoff pollution according to claim 1, characterized in that green adsorption plants are planted on the slope body of the revetment (1).
5. The ecological interception ditch for farmland runoff pollution according to claim 1, characterized in that nitrogen and phosphorus adsorption substances are placed in the adsorption tank (7).
6. The ecological interception ditch for farmland runoff pollution according to claim 1, characterized in that the planting tank (8) is planted with adsorption plants.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111134542.4A CN113800642B (en) | 2021-09-27 | 2021-09-27 | Ecological interception ditch for farmland runoff pollution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111134542.4A CN113800642B (en) | 2021-09-27 | 2021-09-27 | Ecological interception ditch for farmland runoff pollution |
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| Publication Number | Publication Date |
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| CN113800642A true CN113800642A (en) | 2021-12-17 |
| CN113800642B CN113800642B (en) | 2023-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000246283A (en) * | 1999-02-26 | 2000-09-12 | National Agriculture Research Center | Method and apparatus for purifying water using useful plant |
| US20040226869A1 (en) * | 2003-05-12 | 2004-11-18 | Mcclure Stewart D. | Stormdrain curb-inlet multi-stage filtration-unit |
| CN106587485A (en) * | 2016-11-01 | 2017-04-26 | 浙江水利水电学院 | Water purifying device of regenerated water supplied lakes and construction method thereof |
| CN109553198A (en) * | 2018-12-04 | 2019-04-02 | 浙江大学 | The synchronous interception conversion pool and its method for realizing denitrogenation dephosphorizing |
| CN109797839A (en) * | 2019-02-25 | 2019-05-24 | 天津市水利科学研究院 | A kind of efficient pollution cutting device of urban road inlet for stom water and cut dirty operating method |
| CN110629736A (en) * | 2019-09-03 | 2019-12-31 | 生态环境部华南环境科学研究所 | Dry farming farmland nitrogen and phosphorus interception system based on ecological ditch technology and application thereof |
-
2021
- 2021-09-27 CN CN202111134542.4A patent/CN113800642B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000246283A (en) * | 1999-02-26 | 2000-09-12 | National Agriculture Research Center | Method and apparatus for purifying water using useful plant |
| US20040226869A1 (en) * | 2003-05-12 | 2004-11-18 | Mcclure Stewart D. | Stormdrain curb-inlet multi-stage filtration-unit |
| CN106587485A (en) * | 2016-11-01 | 2017-04-26 | 浙江水利水电学院 | Water purifying device of regenerated water supplied lakes and construction method thereof |
| CN109553198A (en) * | 2018-12-04 | 2019-04-02 | 浙江大学 | The synchronous interception conversion pool and its method for realizing denitrogenation dephosphorizing |
| CN109797839A (en) * | 2019-02-25 | 2019-05-24 | 天津市水利科学研究院 | A kind of efficient pollution cutting device of urban road inlet for stom water and cut dirty operating method |
| CN110629736A (en) * | 2019-09-03 | 2019-12-31 | 生态环境部华南环境科学研究所 | Dry farming farmland nitrogen and phosphorus interception system based on ecological ditch technology and application thereof |
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| CN113800642B (en) | 2023-06-16 |
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