CN204675894U - A kind of three-dimensional plant grid for retaining source, face, farmland Runoff contaminants - Google Patents
A kind of three-dimensional plant grid for retaining source, face, farmland Runoff contaminants Download PDFInfo
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- CN204675894U CN204675894U CN201520278840.4U CN201520278840U CN204675894U CN 204675894 U CN204675894 U CN 204675894U CN 201520278840 U CN201520278840 U CN 201520278840U CN 204675894 U CN204675894 U CN 204675894U
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Abstract
The utility model discloses a kind of three-dimensional plant grid for retaining source, face, farmland Runoff contaminants, it is the ship type three-dimensional arrangement of a hollow trapezoid shape, its top is provided with rectangle upper side frame, its underpart is provided with rectangular base frame, be connected by perpendicular doorjamb between upper side frame and boundary frame area, the long limit of upper side frame is greater than the long limit of correspondence of boundary frame area; The inside of three-dimensional plant grid is provided with enough soft wickers.The utility model achieves the point-to-point section of control in pollutent runoff source, and emphasis can also retain TN, TP of being attached on SS while having retained the particulate pollutants such as SS, decreases soil erosion at the rainfall initial stage; Have and draw materials easily, make simple, move, dismantle, reclaim advantage eaily.
Description
Technical field
The utility model is administered about source, face, farmland Runoff contaminants, and particularly a kind of farmland that is applied to entering in irrigation canals and ditches mouth, irrigation canals and ditches, entering the positions such as river culvert mouth for retaining the three-dimensional plant grid of source, face, farmland Runoff contaminants.
Background technology
Widespread pollution from the overuse of fertilizers and pesticides in rural area and agricultural non-point pollution, mainly comprise the aspects such as Agricultural chemical pollution (chemical fertilizer, agricultural chemicals etc.), centralization-breeding factory pollution, domestic sewage in rural areas pollution.In widespread pollution from the overuse of fertilizers and pesticides in rural area, source, face, farmland based on farmland is due to the unreasonable and excessive use of the material used for agriculture such as agricultural chemicals, chemical fertilizer, mulch film, in precipitation or irrigation process, pollutent enters neighbouring water body by agricultural surface runoff, farmland drainage and subsurface wastewater infiltration system, cause water pollution, the widespread pollution from the overuse of fertilizers and pesticides in rural area problem caused becomes increasingly conspicuous, become the major cause of water pollution, lake eutrophication, badly influence the quality of water environment of China, ecotope is healthy, constrain the Sustainable development of China's economic society.
In the control of agricultural non-point pollution, experts and scholars propose some traditional ecologies and cut control means as wetland engineering, Riparian Buffer Zone control techniques, artificial many pools technology etc., these measures have certain removal effect to COD, N, P, but all also there is some defects and deficiency.
Cut control means substantially all to build close to the position entering river at agricultural non-point pollution as these are ecological, away from pollution source, cause long runoff to conflux the diffusion of after stain thing, the larger processing area of corresponding just needs processes pollutent.Therefore can see, artificial swamp, artificial many pools etc. all floor space are comparatively large, and capital cost is higher, and processing efficiency is lower.In fact, control cutting of pollutent, from source, point-to-point intensive treatment measures are than much lower at the dispersed treatment measures cost of end, and technique is also more efficient.
Contriver studies discovery, particularly important to section control of particulate form pollutent in the Rainfall Runoff of farmland, first, the first flush effects of particulate form pollutent as SS (suspended substance total particle) is the most obvious, in addition, Runoff contaminants SS and TN (total nitrogen), TP (total phosphorus) has good linear dependence, therefore, should arrange to retain the particulate pollutants such as SS for main facility nearby point-to-pointly, irrigation canals and ditches mouth is entered in farmland, irrigation canals and ditches are inner, enter the positions such as river culvert mouth and retain the particulate pollutants such as SS, retained the TN be attached on SS simultaneously, TP, also soil erosion is decreased when rainfall first flush intensity is larger.
The utility model proposes a kind of farmland that is applied to enter in irrigation canals and ditches mouth, irrigation canals and ditches, enter Runoff contaminants ecology section control means---the three-dimensional plant grid of river culvert mouth, both Problems existing in above Traditional Ecological measure had been solved, retained particulate pollutant from source be main Runoff contaminants point-to-pointly, have again and draw materials easily, cost is lower, make simple, move, dismantle, reclaim the advantages such as more convenient.
Summary of the invention
The purpose of this utility model, cut control means for Traditional Ecological mostly to build the end that pollutent runoff confluxes in, the shortcoming that its floor space is comparatively large, capital cost is higher, processing efficiency is lower, there is provided one to be applied to farmland to enter in irrigation canals and ditches mouth, irrigation canals and ditches, enter the positions such as river culvert mouth, for retaining the three-dimensional plant grid of source, face, farmland Runoff contaminants, realize the point-to-point section of control to pollutent runoff source.
The utility model is achieved by following technical solution.
A kind of three-dimensional plant grid for retaining source, face, farmland Runoff contaminants, it is characterized in that, this three-dimensional plant grid is the ship type three-dimensional arrangement of a hollow trapezoid shape, its top is provided with rectangle upper side frame 1, its underpart is provided with rectangular base frame 2, be connected by perpendicular doorjamb 3 between upper side frame and boundary frame area, the long limit of upper side frame 1 is greater than the long limit of correspondence of boundary frame area 2; The inside of three-dimensional plant grid is provided with enough soft wickers 4.
Described grid adopts diameter to be the willow limb of 8 ~ 12cm, adopts iron wire to fix or the fourth of the twelve Earthly Branches connects and forms.
The height of described grid is a little more than wet season irrigation canals and ditches elevation of water surface.
Farmland enters the grid size that branch canal mouth or branch canal enter irrigation canals and ditches mouth: long 50cm, wide 40cm, high 40cm.
In irrigation canals and ditches, grid is of a size of: long 100cm, wide 60cm, high 60cm.
Irrigation canals and ditches enter culvert place, river grid and are of a size of: long 200cm, wide 120cm, high 120cm.
The beneficial effect of the utility model three-dimensional plant grid is as follows:
Realize the point-to-point section of control in pollutent runoff source, cost is lower, process efficient.Emphasis can also retain TN, TP of being attached on SS while having retained the particulate pollutants such as SS, decreases soil erosion when rainfall first flush intensity is larger; Have and draw materials easily, make simple, move, dismantle, reclaim the advantages such as more convenient.
The utility model three-dimensional plant grid has following characteristics:
(1) this three-dimensional plant grid has good crown_interception to particulate matter such as the obvious SS of first flush effects, has retained the nitrogen be attached on SS, phosphorus simultaneously.
(2) except trapped particles state pollutent, wicker and willow limb all have stronger energy for growth in water, and its blade and root system have certain removal ability to the nitrogen of solubilised state, phosphorus.
(3) thick wicker is irregular, and three-dimensional plant grid framework has natural space, and inner soft wicker also has natural space, has certain flow resistance but can not affect the needs drained off floodwaters.Therefore this three-dimensional plant grid has the effect alleviating partial water Flow Velocity, increases the treatment time of ecological canal and subsequent disposal measure.
(4) three-dimensional plant height of grid sets according to wet season irrigation canals and ditches elevation of water surface, can cross flow go over when the water yield is larger, also can form drop on a small scale, increase oxygen enrichment effect.
(5) this three-dimensional plant grid is drawn materials easily, and cost is lower, make simple, move, dismantle, reclaim more convenient.
Accompanying drawing explanation
Fig. 1 is the front view of three-dimensional plant grid;
Fig. 2 is the vertical view of three-dimensional plant grid;
Fig. 3 is the side-view of three-dimensional plant grid;
Fig. 4 is that three-dimensional plant grid enters irrigation canals and ditches mouth and arranges schematic diagram in farmland;
Fig. 5 is that three-dimensional plant grid adopts interval to place schematic diagram in tap drain canal;
Fig. 6 is that three-dimensional plant grid is entering river culvert mouth employing diagonal angle placement schematic diagram.
The utility model Reference numeral is as follows:
1---upper side frame 2---boundary frame area
3---perpendicular doorjamb 4---soft wicker
Embodiment
Below in conjunction with real case, the utility model is further elaborated.Specific embodiment only for illustration of the utility model, and does not limit use range of the present utility model.
Embodiment 1
See Fig. 1, Fig. 2, Fig. 3, three-dimensional plant grid for retaining Runoff contaminants of the present utility model, for the ship type three-dimensional arrangement of hollow trapezoid shape, its top is provided with rectangle upper side frame 1, its underpart is provided with rectangular base frame 2, be connected by perpendicular doorjamb 3 between upper side frame and boundary frame area, the long limit of upper side frame is greater than the long limit of correspondence of boundary frame area; The inside of three-dimensional plant grid is also provided with enough soft wickers 4.
Described grid adopts diameter to be the willow limb of 10cm, and adopts thin wire to fix or the fourth of the twelve Earthly Branches connects and forms, and its height is a little more than wet season irrigation canals and ditches elevation of water surface.
Region, existing a slice farmland, is made up of some plots of rice terraces, irrigation canals and ditches, and branch canal imports tap drain canal, tap drain canal with enter river culvert and be connected.After the main pollution of area source in this area comes from rainfall, rainfall runoff carries the pollutents such as SS, N, P in rice terrace and imports irrigation canals and ditches, and imports river course eventually through entering river culvert.
In order to control this pollution of area source from source, entering branch canal mouth at rice terrace, irrigation canals and ditches mouth become owner of by branch canal and tap drain canal enters the positions such as river culvert and is provided with three-dimensional plant grid respectively.
Three-dimensional plant grid is arranged on farmland and enters an irrigation canals and ditches mouth or branch canal and become owner of irrigation canals and ditches mouth and adopt single placement, and as shown in Figure 4, grid size is: long 50cm, wide 40cm, high 40cm.
In tap drain canal, adopt interval to place, spacing distance is 50m, and as shown in Figure 5, grid is of a size of: long 100cm, wide 60cm, high 60cm.
Entering river culvert mouth at tap drain canal adopts diagonal angle to place, and as shown in Figure 6, grid is of a size of: long 200cm, wide 120cm, high 120cm.
When rainfall is carried out, the water in rice terrace is through the interception of three-dimensional plant grid, and particulate form pollutent such as SS is fully retained, and cuts N, P of leaving and being attached on SS simultaneously.Due to the detention effect of three-dimensional plant grid, flow rate of water flow slows down, and the time that charge for remittance imports river course is extended, and the hydraulic detention time in irrigation canals and ditches increases, and the willow cauline leaf in three-dimensional plant grid is degraded to solubilised state N, P.Three-dimensional plant grid serves drop effect to current, adds oxygen in water concentration, also improves treatment effect.
Arrange three-dimensional plant grid, improve the soil erosion under rain fall and pollution of area source, draw materials easily, cost is lower simultaneously, make simple, move, dismantle, reclaim more convenient, particularly applicable in Rural areas.
Claims (6)
1. one kind for retaining the three-dimensional plant grid of source, face, farmland Runoff contaminants, it is characterized in that, this three-dimensional plant grid is the ship type three-dimensional arrangement of a hollow trapezoid shape, its top is provided with rectangle upper side frame (1), its underpart is provided with rectangular base frame (2), be connected by perpendicular doorjamb (3) between upper side frame and boundary frame area, the long limit of upper side frame (1) is greater than the long limit of correspondence of boundary frame area (2); The inside of three-dimensional plant grid is provided with enough soft wickers (4).
2. a kind of three-dimensional plant grid for retaining source, face, farmland Runoff contaminants according to claim 1, is characterized in that, described grid adopts diameter to be the willow limb of 8 ~ 12cm, adopts iron wire to fix or the fourth of the twelve Earthly Branches connects and forms.
3. a kind of three-dimensional plant grid for retaining source, face, farmland Runoff contaminants according to claim 1, is characterized in that, the height of described grid is a little more than wet season irrigation canals and ditches elevation of water surface.
4. a kind of three-dimensional plant grid for retaining source, face, farmland Runoff contaminants according to claim 1, is characterized in that, farmland enters the grid size that branch canal mouth or branch canal enter irrigation canals and ditches mouth and is: long 50cm, wide 40cm, high 40cm.
5. a kind of three-dimensional plant grid for retaining source, face, farmland Runoff contaminants according to claim 1, it is characterized in that, in irrigation canals and ditches, grid is of a size of: long 100cm, wide 60cm, high 60cm.
6. a kind of three-dimensional plant grid for retaining source, face, farmland Runoff contaminants according to claim 1, is characterized in that, irrigation canals and ditches enter culvert place, river grid and are of a size of: long 200cm, wide 120cm, high 120cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520278840.4U CN204675894U (en) | 2015-04-30 | 2015-04-30 | A kind of three-dimensional plant grid for retaining source, face, farmland Runoff contaminants |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520278840.4U CN204675894U (en) | 2015-04-30 | 2015-04-30 | A kind of three-dimensional plant grid for retaining source, face, farmland Runoff contaminants |
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| CN204675894U true CN204675894U (en) | 2015-09-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104909459A (en) * | 2015-04-30 | 2015-09-16 | 天津大学 | Stereo plant grille for intercepting farmland surface source runoff pollutants |
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2015
- 2015-04-30 CN CN201520278840.4U patent/CN204675894U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104909459A (en) * | 2015-04-30 | 2015-09-16 | 天津大学 | Stereo plant grille for intercepting farmland surface source runoff pollutants |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150930 Termination date: 20170430 |
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| CF01 | Termination of patent right due to non-payment of annual fee |