CN213171932U - Ecological permeable dam for farmland ditch - Google Patents
Ecological permeable dam for farmland ditch Download PDFInfo
- Publication number
- CN213171932U CN213171932U CN202021055434.9U CN202021055434U CN213171932U CN 213171932 U CN213171932 U CN 213171932U CN 202021055434 U CN202021055434 U CN 202021055434U CN 213171932 U CN213171932 U CN 213171932U
- Authority
- CN
- China
- Prior art keywords
- adsorption
- dam
- plant
- ecological permeable
- phosphorus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The utility model discloses an ecological permeable dam that farmland irrigation canals and ditches were used, the cross section is trapezium structure, include: a heavy adsorption zone; a light adsorption zone; a plant adsorption zone; plant and grow the purified blanket. The utility model relates to an ecological permeable dam that farmland irrigation canals and ditches were used adopts the heavy matter adsorption zone of integration, light adsorption zone, and the triple adsorption treatment in plant adsorption zone carries out the denitrification nitrogen phosphorus in farmland irrigation canals and ditches drainage and handles, can be guaranteeing that adsorption effect, installation are simple and can arrange on the advantage basis of farmland irrigation canals and ditches fast, improve the treatment of farmland non-point source pollutant, improve the efficiency of nitrogen phosphorus pollutant adsorption treatment in farmland drainage.
Description
Technical Field
The utility model relates to a farmland nitrogen phosphorus volume of falling handles technical field, especially relates to an ecological permeable dam that farmland irrigation canals and ditches were used.
Background
The farmland non-point source pollution refers to the pollution of water environment formed by nitrogen, phosphorus and other nutrient substances, pesticides and other organic or inorganic pollutants through surface runoff of a farmland and farmland infiltration in agricultural production activities. Such pollution mainly includes fertilizer pollution, pesticide pollution, and the like. The farmland ditch is taken as an important component part of the farmland ecosystem, and the farmland ditch remarkably influences the material circulation in the farmland ecosystem and plays an important role in maintaining the balance of the agricultural ecosystem and the health of the watershed ecosystem.
In order to reduce the non-point source pollution of farmland, a mode of harmlessly treating pollutants needs to be added while scientifically applying pesticides and fertilizers. However, most of the existing ecological permeable dam devices are constructed in modes such as cement by adopting a large volume, for example: the invention patent application with publication number CN1851141 discloses an ecological permeable dam and a design and construction method thereof, the ecological permeable dam is positioned in a non-flood-carrying river, the section of the ecological permeable dam is of a trapezoidal duplex structure, the slope coefficient of a dam slope is 1: 1-1: 2.5, and the ecological permeable dam comprises four parts: (A) a control layer; (B) a transition layer; (C) an overflow layer; (D) and a stabilizing layer. The design process of the ecological permeable dam comprises the steps of surveying the topographic conditions of a damming address, inquiring hydrological meteorological data or other design data to obtain the geometric parameters and the design flow of the ecological permeable dam, substituting the parameters into a Du's equation in seepage mechanics for trial calculation to obtain reasonable permeability coefficient and retention time, then carrying out further design of the ecological permeable dam, and selecting proper gravel gradation, damming materials and planting plants. The invention has the following remarkable advantages: the method has the advantages of unpowered operation, construction cost reduction, good pertinence, and capability of obtaining about 10% of COD removal rate, 10% -20% of TN removal rate and 20% -40% of TP removal rate. However, the device disclosed in the patent application has large floor area and long construction time, and is not suitable for popularization of large-area agricultural non-point source pollution treatment.
Therefore, there is a need to design an ecological permeable dam device for farmland and ditches, which can be assembled quickly, can adjust the height of the dam body reasonably in different water flow periods of the ditches, and has good pollutant treatment effect so as to solve the problems.
SUMMERY OF THE UTILITY MODEL
The utility model discloses not enough to exist among the prior art, provide an ecological permeable dam that farmland irrigation canals and ditches were used, can be guaranteeing adsorption effect, the installation is simple and can arrange fast on the advantage basis of farmland drainage canal, improves the treatment of farmland non-point source pollutant, improves the efficiency that nitrogen phosphorus pollutant adsorbs the processing in the farmland irrigation canals and ditches.
The utility model provides an ecological permeable dam that farmland irrigation canals and ditches were used, the cross section is trapezium structure, includes:
the heavy adsorption area is arranged at the bottom of the ecological permeable dam and is provided with a heavy nitrogen and phosphorus adsorption material wrapped by an ecological bag;
the light adsorption area is arranged at the position of a dam slope at the periphery of the heavy adsorption area and is provided with a light adsorption material wrapped by a guest grid;
the plant adsorption area is arranged at the top of the dam and is planted with nitrogen and phosphorus adsorption plants for adsorbing nitrogen and phosphorus;
and the plant growing purification blanket covers the light adsorption area and is used for fixing the dam body and purifying water flow.
Preferably, the heavy nitrogen and phosphorus adsorption material is vesuvianite.
Preferably, denitrifying phosphorus accumulating bacteria are also mixed in the heavy nitrogen-phosphorus adsorbing material.
Preferably, the light adsorption material is ceramsite.
Preferably, the plant adsorption area is formed by encircling a heavy adsorption area at the bottom and light adsorption areas on dam slopes on two sides, organic soil required by plant growth is laid at the bottom of the plant adsorption area, and nitrogen and phosphorus adsorption plants are planted on the organic soil.
More preferably, the plant adsorption area is provided with a planting pot, organic soil is filled in the planting pot, and the nitrogen and phosphorus adsorption plants are planted in the planting pot; the nitrogen and phosphorus adsorption plant is at least one of canna or windmill grass.
Preferably, submerged plants are further planted on the vegetation purification blanket. More preferably, the submerged plant is elodea nutans.
Preferably, the slope coefficient of the dam slope is 1: 1.5-1: 2.5.
Preferably, adopt ligature area or steel wire fixed between the adjacent guest graticule mesh, plant and give birth to the purification blanket and also adopt ligature area or steel wire to fix in guest graticule mesh.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model relates to an ecological permeable dam that farmland irrigation canals and ditches were used adopts the heavy matter adsorption zone of integration, light adsorption zone, and the triple adsorption treatment in plant adsorption zone carries out the denitrification nitrogen phosphorus in farmland irrigation canals and ditches drainage and handles, can be guaranteeing that adsorption effect, installation are simple and can arrange on the advantage basis of farmland irrigation canals and ditches fast, improve the treatment of farmland non-point source pollutant, improve the efficiency of nitrogen phosphorus pollutant adsorption treatment in farmland drainage.
Drawings
Fig. 1 is the utility model relates to a structural schematic diagram of an ecological permeable dam for farmland irrigation canals and ditches.
Fig. 2 is a partially enlarged view of a in fig. 1.
Description of the drawings: 1. a heavy adsorption zone; 2. a light adsorption zone; 3. a plant adsorption zone; 4. planting and purifying blanket; 5. and (5) submerged plants.
Detailed Description
As shown in fig. 1 and 2, an ecological permeable dam for a field and a ditch, which has a trapezoidal cross-section, comprises: heavy adsorption zone 1, light adsorption zone 2, plant adsorption zone 3 and vegetation purification blanket 4. The dam slopes on two sides of the ecological permeable dam can be symmetrically arranged, namely, the cross section of the ecological permeable dam is of an isosceles trapezoid structure, and the slope coefficient of the dam slope is preferably 1: 1.5-1: 2.5.
The bottom of ecological permeable dam is located to heavy matter adsorption zone 1, is equipped with the heavy matter nitrogen phosphorus adsorption material by ecological bag parcel, can be formed by the ecological bag buttress castellation of a plurality of parcel heavy matter nitrogen phosphorus adsorption material, is located the bottom of ecological permeable dam, and the periphery is wrapped up by light adsorption zone 2 and plant adsorption zone 3, and heavy matter nitrogen phosphorus adsorption material can be vesuvianite, still thoughtlessly has the denitrifying phosphorus accumulating fungus in the heavy matter nitrogen phosphorus adsorption material.
The light adsorption area 2 is arranged at the periphery of the heavy adsorption area 1 and corresponds to the position of a dam slope of the ecological permeable dam, light adsorption materials wrapped by guest grids are arranged, the light adsorption materials can be formed by a plurality of guest grid stacking castellations wrapping the light adsorption materials, the light adsorption materials can be ceramsite, and adjacent guest grids are fixed by binding bands or steel wires.
The plant adsorption area 3 is arranged at the top of the dam and is planted with nitrogen and phosphorus adsorption plants for adsorbing nitrogen and phosphorus. The plant adsorption area 3 is formed by surrounding a heavy adsorption area 1 at the bottom and light adsorption areas 2 on dam slopes on two sides, organic soil required by plant growth is paved at the bottom of the plant adsorption area 3, and nitrogen and phosphorus adsorption plants are planted on the organic soil. In a preferred embodiment, the plant adsorption area 3 is provided with a planting pot filled with organic soil, and nitrogen and phosphorus adsorbing plants are planted in the planting pot. The nitrogen and phosphorus adsorption plant is at least one of canna or windmill grass.
The plant growing purification blanket 4 covers the light adsorption area 2 and is used for fixing the dam body and purifying water flow. The plant growing purification blanket 4 is fixed on the bingo net on the surface of the light adsorption area 2 in the covering area by adopting a binding belt or steel wires. Submerged plants 5 are also planted on the vegetation purification blanket 4. The submerged plant is preferably elodea nutans.
The ecological permeable dam for the farmland ditch is specifically installed and used as follows:
(1) the ecological permeable dam for the farmland ditch of the utility model is arranged inside the farmland drainage ditch, water flow in the farmland drainage ditch enters the interior of the dam body, and the vegetation purification blanket 4 performs primary coarse filtration on water to ensure that large particles such as garbage and the like cannot enter the interior of the dam body;
(2) when the drainage of a farmland ditch is treated, the farmland sewage firstly passes through the light adsorption area 2 and then enters the heavy adsorption area 1, and the water flow overflowing from the upper part passes through the plant adsorption area 3 and is used for carrying out nitrogen and phosphorus adsorption by using aquatic plants;
(3) after the sewage enters the light adsorption area 2, the farmland sewage flows forwards while nitrogen and phosphorus are adsorbed, and the sewage enters the heavy adsorption area 1 after passing through the ecological bag, and nitrogen and phosphorus in the water are degraded and adsorbed for the second time through the heavy nitrogen and phosphorus adsorption material and the denitrifying phosphorus accumulating bacteria attached to the porous nitrogen and phosphorus adsorption material.
The utility model relates to an ecological permeable dam that farmland irrigation canals and ditches were used adopts the heavy matter adsorption zone 1 of integration, light adsorption zone 2, and 3 triplets absorption in plant adsorption zone are handled and are carried out the denitrification nitrogen phosphorus in farmland irrigation canals and ditches drainage and handle, can improve the treatment effect of farmland non-point source pollutant on guaranteeing that adsorption effect, installation are simple and can arrange on the advantage basis of farmland irrigation canals and ditches fast, improve the efficiency that nitrogen phosphorus pollutant adsorption in farmland irrigation and ditches handled.
Claims (10)
1. The utility model provides an ecological permeable dam that farmland irrigation canals and ditches were used, the cross section is trapezium structure, a serial communication port, includes:
the heavy adsorption area is arranged at the bottom of the ecological permeable dam and is provided with a heavy nitrogen and phosphorus adsorption material wrapped by an ecological bag;
the light adsorption area is arranged at the position of a dam slope at the periphery of the heavy adsorption area and is provided with a light adsorption material wrapped by a guest grid;
the plant adsorption area is arranged at the top of the dam and is planted with nitrogen and phosphorus adsorption plants for adsorbing nitrogen and phosphorus;
and the plant growing purification blanket covers the light adsorption area and is used for fixing the dam body and purifying water flow.
2. The ecological permeable dam of claim 1, wherein the heavy nitrogen phosphorus adsorption material is vesuvianite.
3. The ecological permeable dam of claim 1, wherein denitrifying phosphorus accumulating bacteria are further mixed in the heavy nitrogen phosphorus adsorbing material.
4. The ecological permeable dam of claim 1, wherein the light-weight adsorption material is ceramsite.
5. The ecological permeable dam of claim 1, wherein the plant adsorption area is formed by enclosing a heavy adsorption area at the bottom and light adsorption areas at two side dam slopes, organic soil for plant growth is laid at the bottom of the plant adsorption area, and nitrogen and phosphorus adsorption plants are planted on the organic soil.
6. The ecological permeable dam of claim 5, wherein the plant adsorption area is provided with a planting pot filled with organic soil, and the nitrogen and phosphorus adsorbing plants are planted in the planting pot; the nitrogen and phosphorus adsorption plant is at least one of canna or windmill grass.
7. The ecological permeable dam of claim 1, wherein submerged plants are further planted on the vegetation purification blanket.
8. The ecological permeable dam of claim 7, wherein the submerged plant is waterweed.
9. An ecological permeable dam according to claim 1, wherein the slope coefficient of the dam slope is 1: 1.5 to 1: 2.5.
10. An ecological permeable dam according to claim 1, wherein adjacent guest grids are fixed by using binding bands or steel wires, and the vegetation purification blanket is also fixed on the guest grid by using binding bands or steel wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021055434.9U CN213171932U (en) | 2020-06-10 | 2020-06-10 | Ecological permeable dam for farmland ditch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021055434.9U CN213171932U (en) | 2020-06-10 | 2020-06-10 | Ecological permeable dam for farmland ditch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213171932U true CN213171932U (en) | 2021-05-11 |
Family
ID=75787521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021055434.9U Active CN213171932U (en) | 2020-06-10 | 2020-06-10 | Ecological permeable dam for farmland ditch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213171932U (en) |
-
2020
- 2020-06-10 CN CN202021055434.9U patent/CN213171932U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7015968B2 (en) | Nitrogen / phosphorus blocking system and method in rural landscape ecological ditches | |
| CN206472556U (en) | A kind of multifunctional ecological tree pond for being used for pavement rainwater purification and utilizing | |
| CN105464050B (en) | Renewable filler-plant society formula irrigation canals and ditches-bank protection nitrogen phosphorus ecological intercepting system | |
| CN109399800B (en) | River and lake runoff pollution cascade control system | |
| CN106430807A (en) | Ecological ditch system for improving receiving water non-point source pollution treatment | |
| CN206635120U (en) | Mixed flow constructed wetland system | |
| CN109970207A (en) | Cut down the ecological canal of agricultural non -point pollution | |
| CN206289052U (en) | Process the improved surface artificial wetland of agricultural surface runoff pollutant | |
| CN210315414U (en) | Ecological ditch for treating in-situ leaching liquor of ionic rare earth mine | |
| CN108298702A (en) | A kind of tea place concentration development zone runoff treatment system | |
| CN107628731A (en) | Strengthen runoff pollution ecology minimizing technology and roof garden in a kind of roof garden | |
| CN215756905U (en) | Ecological interception system for purifying sewage | |
| KR101218769B1 (en) | Urban non-point pollutant treatment device using ecological trench | |
| CN109553198A (en) | The synchronous interception conversion pool and its method for realizing denitrogenation dephosphorizing | |
| CN206799267U (en) | A kind of cities and towns irrigation canals and ditches ecological purification system | |
| CN212315838U (en) | Ecological revetment clean system | |
| CN213171932U (en) | Ecological permeable dam for farmland ditch | |
| CN108467120A (en) | A kind of tea place concentration development zone runoff treatment method | |
| CN205348113U (en) | Ecological interception system of filler - plant society formula irrigation canals and ditches - bank protection nitrogen phosphorus of can regenerating | |
| CN110093826A (en) | A kind of tandem road rain water runoff ecological purification system and its construction method | |
| CN112062280B (en) | Combined trapezoidal ecological ditch | |
| CN213623491U (en) | Farmland non-point source pollution ecological purification ditch system | |
| CN112830642A (en) | Novel ecological ditch system for preventing and treating farmland non-point source pollution | |
| CN207845434U (en) | A kind of storm outfall sewer pretreatment system with peak clipping and purification function | |
| CN217996988U (en) | Arrange a mouthful normal position clean system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |