CN113800642B - Ecological interception ditch for farmland runoff pollution - Google Patents
Ecological interception ditch for farmland runoff pollution Download PDFInfo
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- CN113800642B CN113800642B CN202111134542.4A CN202111134542A CN113800642B CN 113800642 B CN113800642 B CN 113800642B CN 202111134542 A CN202111134542 A CN 202111134542A CN 113800642 B CN113800642 B CN 113800642B
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- Prior art keywords
- silt
- filter screen
- filter
- fixedly connected
- ditch
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000001179 sorption measurement Methods 0.000 claims abstract description 32
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 16
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 16
- 239000011574 phosphorus Substances 0.000 claims abstract description 16
- 239000000126 substance Substances 0.000 claims abstract description 11
- 230000015556 catabolic process Effects 0.000 claims abstract description 9
- 238000006731 degradation reaction Methods 0.000 claims abstract description 9
- 238000001914 filtration Methods 0.000 claims description 12
- 239000011148 porous material Substances 0.000 claims description 2
- 230000003028 elevating effect Effects 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 38
- 239000010802 sludge Substances 0.000 abstract description 10
- 239000003344 environmental pollutant Substances 0.000 abstract description 5
- 231100000719 pollutant Toxicity 0.000 abstract description 5
- 241000196324 Embryophyta Species 0.000 description 17
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 description 6
- 239000002689 soil Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000002262 irrigation Effects 0.000 description 4
- 238000003973 irrigation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000012851 eutrophication Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 241001445982 Lithophragma glabrum Species 0.000 description 1
- 241001464837 Viridiplantae Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003621 irrigation water Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- 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
-
- 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
-
- 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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- Life Sciences & Earth Sciences (AREA)
- 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 an ecological interception ditch for farmland runoff pollution, which comprises a slope protection, wherein an interception device is fixedly connected to the inner surface of the slope protection, a planting groove is formed in the top surface of the interception device, a sludge bin is fixedly connected to the bottom surface of the interception device, and a sludge degradation layer is arranged on the bottom surface of the sludge bin. According to the invention, the first filter screen and the filter plate on the interception device can filter out pollutant in the ecological interception ditch, when water in the ditch flows through the adsorption box, substances in the adsorption box can greatly adsorb harmful substances such as nitrogen and phosphorus in the water, so that the nitrogen and phosphorus content in the water is effectively reduced, silt can be generated after a long time due to existence of silt in the ecological interception ditch, water quality is polluted, the silt bin at the bottom of the interception device can retain the silt in the silt bin through the second filter screen when the silt flows through along with water flow, and the silt degradation layer at the bottom of the silt bin can slowly degrade the silt, so that the harmfulness of the silt is eliminated.
Description
Technical Field
The invention relates to the technical field of ecological interception ditches, in particular to a farmland runoff pollution ecological interception ditch.
Background
The water eutrophication is an environmental protection problem commonly existing in various countries in the world, and is not exceptional in China, and along with the rapid development of the social economy of China, the water eutrophication presents a general and increasingly serious development situation. The pollution sources causing water eutrophication 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 farmland nitrogen and phosphorus to the receiving water body becomes an important content in the aspect of agricultural non-point source pollution research. In China, there are two main types of drainage ditches in farmland: soil trenches and concrete trenches. The soil ditch has the main problems of easy water and soil loss and cluster weeds, and both the soil and the cluster weeds pollute the receiving water body; the concrete ditch has the main problems that the water speed is high, and sediment in drainage is difficult to be completely settled; secondly, plants and microorganisms are absent, and nitrogen and phosphorus in the discharged water cannot be absorbed, adsorbed and degraded.
At present, the construction of ecological interception ditches is more and more emphasized, most of the existing ecological interception ditches adopt to plant green adsorption plants, the plants are used for adsorbing nitrogen and phosphorus substances in irrigation water in the ditches, but the adsorption effect of the green plants is limited, the planted plants possibly cannot adapt to ecology in certain areas, rainwater in the ecological interception ditches in rainy seasons can be excessive, the rainwater can be reversely irrigated into farmlands, the water level can be reduced in dry seasons, and the irrigation is not facilitated, so that the water level in the ecological interception ditches can be controlled.
Therefore, it is necessary to design an ecological interception ditch for farmland runoff pollution 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 above purpose, the present invention adopts the following technical scheme:
the utility model provides a farmland runoff pollutes ecological interception ditch, includes the bank protection, the inner face fixedly connected with intercepting device of bank protection, intercepting device's top surface is provided with the planting groove, intercepting device's bottom surface fixedly connected with silt storehouse, the bottom surface in silt storehouse is provided with silt degradation layer, the second filter screen is installed to one side in silt storehouse, first filter screen is installed to one side of intercepting device, adsorption tank is installed to the opposite side of intercepting device, the fixed mounting in position between first filter screen on the intercepting device and the adsorption tank has the filter, the through-filter hole has been seted up on the filter, the side sliding connection of filter has the bar shutter, intercepting device's top surface is provided with the lift storehouse, fixedly connected with guide bar between interior top surface in lift storehouse and the interior bottom surface, the interior top surface fixedly connected with servo motor in lift storehouse, servo motor's output fixedly connected with lead screw, the one end that servo motor was kept away from to the lead screw rotates the interior bottom surface in the lift storehouse, one side of having cup jointed the movable plate on the outer fringe of guide bar, the opposite side and the movable plate bottom surface have the filter screen, the side of movable plate and the bar shutter bottom surface sliding connection have the bar shutter, top surface position fixedly connected with the bar shutter.
Preferably, the first filter screen and the second filter screen have different filter screen apertures.
Preferably, a filter screen is mounted on the inner surface of the through filter hole.
Preferably, green adsorption plants are planted on the slope body of the slope protection.
Preferably, the adsorption box is provided with nitrogen and phosphorus adsorption substances.
Preferably, the planting groove is planted with the adsorbed plants.
The invention has the following beneficial effects:
1. through setting up the intercepting device, the first filter screen and the filter on the intercepting device can filter the pollutant in the ecological interception ditch, the water in the ditch when flowing through the adsorption box, the substance in the adsorption box can be by a wide margin adsorb harmful substances such as nitrogen phosphorus in the water, the effectual nitrogen phosphorus content that reduces in the water is favorable to secondary irrigation and can reach the standard of direct emission, because there is the existence of silt in the ecological interception ditch, can produce silt after a long time, pollute water quality, the silt storehouse of intercepting device bottom can be when silt flows through along with rivers, the rivers can be in the middle of the silt storehouse through the second filter screen and silt, the silt degradation layer of silt storehouse bottom can slowly degrade silt, eliminate his harm;
2. through setting up lift storehouse, bar sunshade sliding connection is in the side of filter, and the lead screw rotates behind the servo motor in opening lift storehouse, and one side of the movable plate on the lead screw outer fringe cup joints on the guide bar, consequently the movable plate can be followed vertical direction and removed and can not be rotatory along with the lead screw, and the movable plate drives the bar sunshade through the lifter and removes when removing along vertical direction, can cover or open the through-hole filtration pore on the filter, can adjust the velocity of flow of ecological interception ditch normal water, and is convenient for irrigate.
Drawings
FIG. 1 is a schematic diagram of a front view structure of an ecological interception ditch for farmland runoff pollution, which is provided by the invention;
FIG. 2 is a schematic diagram of a schematic side cross-sectional structure of an interception device for an ecological interception ditch for farmland runoff pollution;
FIG. 3 is a schematic diagram of a front cross-sectional structure of a filter plate of an ecological interception ditch for farmland runoff pollution, which is provided by the invention;
in the figure: 1 bank protection, 2 intercepting devices, 3 lifting bins, 4 silt bins, 5 first filter screens, 6 filter plates, 7 adsorption tanks, 8 planting grooves, 9 silt degradation layers, 10 second filter screens, 11 guide rods, 12 servo motors, 13 screw rods, 14 moving plates, 15 lifting rods, 16 strip-shaped shielding plates and 17 through filter holes.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to FIGS. 1-3, an ecological interception ditch for farmland runoff pollution, comprising a slope protection 1, wherein an interception device 2 is fixedly connected with 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 with 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 soil in the ecological interception ditch, water flow is prevented from being polluted by the silt, a second filter screen 10 is arranged on one side of the silt bin 4, the second filter screen 10 can filter and retain the silt in the silt bin 4, a first filter screen 5 is arranged on one side of the interception device 2, pollutants in the water flow are filtered by the first filter screen 5, an adsorption box 7 is arranged on the other side of the interception device 2, a filter plate 6 is fixedly arranged at the position between the first filter screen 5 and the adsorption box 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 bar-shaped shielding plate 16 in a sliding way, the top surface of the interception 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 rotationally connected with the inner bottom surface of the lifting bin 3, one side of a movable plate 14 is sleeved on the outer edge of the guide rod 11, the other side of the movable plate 14 is in threaded connection with the screw rod 13, the movable plate 14 can not rotate along with the screw rod 13 but can move up and down along with the rotation of the screw rod 13, the central 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 central position of the top surface of the bar-shaped shielding plate 16, when the bar-shaped shielding plate 16 is driven by the lifting rod 15 to move upwards, the shielding plate on the bar-shaped shielding plate 16 can cover the through filtering holes 17 on the filter plate 6, water flow cannot pass through, when the bar-shaped shielding plate 16 moves downwards along with the lifting rod 15, the shielding plate on the bar-shaped shielding plate 16 can open the through filtering holes 17 on the filter plate 6, water flow can pass through normally, and the water flow speed in the ecological interception ditch is effectively controlled.
Referring to fig. 2, the first filter 5 is different from the second filter 10 in filter aperture.
Referring to fig. 3, the filter screen is mounted on the inner surface of the through filter hole 17, and the through filter hole 17 has a secondary filtering effect, so that the pollutant which is not filtered by the first filter screen 5 can be filtered, and the filtering effect is ensured.
Referring to fig. 1, green adsorption plants are planted on the slope of the slope protection 1, and can adsorb nitrogen and phosphorus in water through the action of the plants, so that the nitrogen and phosphorus absorption efficiency is improved, and meanwhile, the environment protection rate of the ecological interception ditch can be improved through the green adsorption plants.
Referring to fig. 2, the adsorption box 7 is provided with a nitrogen-phosphorus adsorption material, and the nitrogen-phosphorus adsorption material can fully absorb nitrogen-phosphorus substances in the ecological interception ditch water flow, so that the content of the nitrogen-phosphorus substances in the water flow is effectively reduced.
Referring to fig. 2, the adsorption plants are planted in the planting groove 8, and can adsorb nitrogen and phosphorus in water through the action of the plants, so that the nitrogen and phosphorus absorption efficiency is improved, and the environmental protection rate of the ecological interception ditch can be improved through the adsorption plants.
The specific working principle of the invention is as follows:
the first filter screen 5 and the filter plate 6 on the interception device 2 can filter out pollutants in the ecological interception ditch, when water in the ditch flows through the adsorption box 7, the nitrogen and phosphorus adsorption substances in the adsorption box 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, the direct discharge standard can be achieved, due to the existence of sediment in the ecological interception ditch, the water quality is polluted by the sludge generated after a long time, the sludge bin 4 at the bottom of the interception device 2 can slowly degrade the sludge through the second filter screen 10 when the sludge flows through the second filter screen 10, the harm of the sludge is eliminated by the sludge degradation layer 9 at the bottom of the sludge bin 4, the nitrogen and phosphorus in the water can be adsorbed by the adsorption plants in the planting groove 8 at the top of the interception device 2, the nitrogen and phosphorus adsorption efficiency of the water is improved, and the environmental protection rate of the ecological interception ditch can be improved by the adsorption plants;
the strip-shaped shielding plate 16 is slidably connected to the side face of the filter plate 6, the servo motor 12 in the lifting bin 3 is opened, then the screw rod 13 is driven to rotate, one side of the moving plate 14 is sleeved on the outer edge of the screw rod 13 in a threaded manner, and the other side of the moving plate 14 is slidably sleeved on the outer edge of the guide rod 11, so that the moving plate 14 can move in the vertical direction and cannot rotate along with the screw rod 13, the strip-shaped shielding plate 16 is driven to move upwards through the lifting rod 15 when the moving plate 14 moves upwards, the shielding plate on the strip-shaped shielding plate 16 can cover the through filtering holes 17 on the filter plate 6, the covered through filtering holes 17 cannot pass through water flow, the shielding plate on the strip-shaped shielding plate 16 drives the strip-shaped shielding plate 16 to move downwards through the lifting rod 15 when the moving plate 14 moves downwards, the water flow can normally pass through the covered through filtering holes 17 after the shielding through filtering holes 17 are opened, and the flow rate of water in an ecological interception ditch can be adjusted through the cooperation of the strip-shaped shielding plate 16 and the through filtering holes 17, so that irrigation is convenient.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (5)
1. The utility model provides an ecological interception ditch of farmland runoff pollution, includes bank protection (1), its characterized in that, the inner face fixedly connected with intercepting device (2) of bank protection (1), the top surface of intercepting device (2) is provided with planting groove (8), the bottom surface fixedly connected with silt storehouse (4) of intercepting device (2), the bottom surface of silt storehouse (4) is provided with silt degradation layer (9), second filter screen (10) are installed to one side of silt storehouse (4), first filter screen (5) are installed to one side of intercepting device (2), adsorption tank (7) are installed to the opposite side of intercepting device (2), position fixed mounting between first filter screen (5) on intercepting device (2) and adsorption tank (7) has filter plate (17), link up filtration pore (17) have been seted up on filter plate (6), the side sliding connection of filter plate (6) has sunshade (16), the top surface of intercepting device (2) is provided with elevating bin (3), fixedly connected with guide bar (11) between the top surface and the bottom surface of elevating bin (3) and the interior top surface of motor (12), servo motor (12) are connected with servo feed screw (12), one end of the screw rod (13) far away from the servo motor (12) is rotationally connected to the inner bottom surface of the lifting bin (3), one side of the movable plate (14) is sleeved on the outer edge of the guide rod (11), the other side of the movable plate (14) is in threaded connection with the screw rod (13), the lifting rod (15) is fixedly connected to the central position of the bottom surface of the movable plate (14), and the bottom surface of the lifting rod (15) is fixedly connected with the central position of the top surface of the strip-shaped shielding plate (16); the filter screen apertures of the first filter screen (5) and the second filter screen (10) are different.
2. A farmland runoff pollution ecological interception ditch according to claim 1, characterized in that the inner face of the through-filtration holes (17) is equipped with a filter screen.
3. The ecological interception ditch for farmland runoff pollution, according to claim 1, characterized in that the slope of the slope protection (1) is planted with green adsorption plants.
4. The ecological interception ditch for farmland runoff pollution according to claim 1, characterized in that the adsorption box (7) is provided with nitrogen and phosphorus adsorption substances.
5. A farmland runoff pollution ecological interception ditch according to claim 1, characterized in that said planting groove (8) is planted with adsorbed 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 |
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| 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 CN113800642A (en) | 2021-12-17 |
| CN113800642B true CN113800642B (en) | 2023-06-16 |
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| CN202111134542.4A Active CN113800642B (en) | 2021-09-27 | 2021-09-27 | Ecological interception ditch for farmland runoff pollution |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3787610B2 (en) * | 1999-02-26 | 2006-06-21 | 独立行政法人農業・食品産業技術総合研究機構 | Water purification method and apparatus using useful plant |
| US7083721B2 (en) * | 2003-05-12 | 2006-08-01 | Mcclure Stewart D | Stormdrain curb-inlet multi-stage filtration-unit |
| CN106587485B (en) * | 2016-11-01 | 2020-06-19 | 浙江水利水电学院 | Reclaimed water supply type lake water body purification device and construction method |
| CN109553198A (en) * | 2018-12-04 | 2019-04-02 | 浙江大学 | The synchronous interception conversion pool and its method for realizing denitrogenation dephosphorizing |
| CN109797839B (en) * | 2019-02-25 | 2019-12-24 | 天津市水利科学研究院 | Urban road gutter inlet efficient sewage interception device and sewage interception operation method |
| CN110629736B (en) * | 2019-09-03 | 2021-05-04 | 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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Application publication date: 20211217 Assignee: Ningbo Daokuan Technology Co.,Ltd. Assignor: ZHEJIANG WORLD CLEAN ENVIRONMENT ENGINEERING Co.,Ltd. Contract record no.: X2024980016878 Denomination of invention: An ecological interception ditch for farmland runoff pollution Granted publication date: 20230616 License type: Common License Record date: 20240930 |