CN206089200U - Farmland benthophyte ecological ditch canal - Google Patents
Farmland benthophyte ecological ditch canal Download PDFInfo
- Publication number
- CN206089200U CN206089200U CN201620665075.6U CN201620665075U CN206089200U CN 206089200 U CN206089200 U CN 206089200U CN 201620665075 U CN201620665075 U CN 201620665075U CN 206089200 U CN206089200 U CN 206089200U
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- farmland
- irrigation canals
- ditches
- submerged plant
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The utility model discloses a farmland benthophyte ecological ditch canal utilizes the current irrigation canals and ditches transformation in farmland to form, half permeable dike of locating at the delivery port of irrigation canals and ditches main part is taken and set up including irrigation canals and ditches main part, setting at the grid of the water inlet department of irrigation canals and ditches main part, the benthophyte who sets up in the irrigation canals and ditches main part. The utility model discloses the ecological ditch canal utilizes benthophyte to have the ecological purification performance to farmland low concentration face source sewage, can effectively reduce suspended solid, nitrogen, phosphorus content, and the current farmland irrigation canals and ditches space of make full use of, has practiced thrift land resource.
Description
Technical field
The utility model belongs to face source technical field of water pollution control, and in particular to a kind of farmland submerged plant ecology ditch
Canal.
Background technology
Widespread pollution from the overuse of fertilizers and pesticides in rural area is primarily referred to as in Agricultural Activities, soil particle, nitrogen, phosphorus, agricultural chemicals in farmland and other
Organic or inorganic polluter, during precipitation or irrigation, by agricultural surface runoff, agricultural drain or underground leakage, makes
A large amount of polluters enter water body, cause the pollution of surface water and groundwater.Relevant research shows that water pollution is tight in China
Weight, basin water body nitrogen, the phosphorus nutritionization that the domestic sewage divided by farmland, rural area livestock and poultry cultivation area and the combination area of city and country is caused is
More than the life point-source pollution from urban area and industrial point-source pollution.Cause the immediate cause of widespread pollution from the overuse of fertilizers and pesticides in rural area main
It is：Phosphorus and nitrogen in agricultural run-off, heavy rain overland flow, mountain region soil erosion, agricultural solid waste and sanitary sewage is in soil
Migration in earth and water body and conversion, it can be seen that, fertilising and rainfall are the key factors of impact farmland nutrient loss.
Randomness, popularity, diffusivity that widespread pollution from the overuse of fertilizers and pesticides in rural area is discharged because of it, and the time of origin to pollution of area source,
The features such as pollutant levels, the uncertainty of occurring source, so, the improvement of agricultural non -point pollution can take respectively Sources decreasing and
Process interrupter technique.Sources decreasing Treatment process refers to by control technologies such as fertilising, irrigation, drainings, controls farmland pollution thing
Intensity is produced and discharged, the yield of pollutant is effectively reduced, major technique has Optimum Fertilization Using, Rational Irrigation technology, control
Agricultural drain technology processed and administration sustained release fertilizer technology etc..Process interrupter technique is referred to and passed through in water body transition process in pollutant
Some physics, biological and engineering method are carried out intercepting blocking and strengthen purification to pollutant, extend it in the stop in road domain
Between, maximize and reduce its amount of pollutant for entering water body.At present conventional technology has two big class, and one is that farmland inside intercepts；Separately
One class is that pollutant leaves the interception interrupter technique behind farmland.Wherein, ecological intercepting technology is agricultural non -point pollution blocking control
Technical way, existing Interception Technology mainly includes：Ecological intercepting irrigation canals and ditches technology, Artificial Wetland Techniques, rice field are dissolved skill
Art, front damming technology, buffer strip technology.
, as common rainwater runoff pollution processing mode, the quality of its design is for rainwater treatment effect shadow for ecological canal
Sound is very big.Such as ecological canal hydraulic detention time is general shorter, it is impossible to which sewage is effectively treated；At present ecological canal is more
It is main bio-absorbable approach with emergent aquactic plant, emergent aquactic plant is little with waste water area, and clean-up effect is poor compared with submerged plant,
In addition existing ecological canal difficulty of construction is big, high cost, is also the key factor for affecting ecological canal to promote.
The content of the invention
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, there is provided a kind of farmland submerged plant
Ecological canal, has ecological purification function to farmland low-concentration area source sewage using submerged plant, can effectively cut down suspension,
The content of nitrogen and phosphorous, and existing farmland ditch space is made full use of, save land resource.
To solve above technical problem, the utility model is adopted the following technical scheme that：
A kind of farmland submerged plant ecological canal, is formed using the transformation of the existing irrigation canals and ditches in farmland, including irrigation canals and ditches main body, is arranged on
The grid of the water inlet of irrigation canals and ditches main body, the submerged plant being arranged in irrigation canals and ditches main body band and it is arranged on the delivery port of irrigation canals and ditches main body
Half permeable dike at place.
Preferably, irrigation canals and ditches subject depth is 1.0-1.2m, and the section configuration of irrigation canals and ditches main body is inverted trapezoidal, and top width degree is 2.0-
4.0m, bottom width degree is 1.5-3.0m, and at 1 ° -5 °, the height of half permeable dike is the 80%-90% of irrigation canals and ditches subject depth to the gradient.
It is further preferred that half permeable dike is highly 0.8-1.0m.
Preferably, half permeable dike includes being located at the impermeable stratum that is made up of compacted clay of lower section and above by equipped with filling out
Fill the pervious bed that the geotechnological cloth bag of thing is constituted.
It is further preferred that the height of impermeable stratum is 0.5-0.6m, the section of impermeable stratum is trapezoidal, and bottom width is 1.2-
1.5m, top width is 0.6-1.0m.
It is further preferred that the filler of pervious bed is rice husk, brown coal, slag, the mixture of haydite, geotechnological cloth bag is circle
Cylindricality, is highly 0.3m, a diameter of 0.2m.
Preferably, grid is poured for cement and formed, and grid is at intervals of 10-15cm.
Preferably, submerged plant of the submerged plant with plantation is water caltrop, eel grass, comb tooth bog pondweed.
Due to the enforcement of above technical scheme, the utility model has the advantage that compared with prior art：
The utility model farmland submerged plant ecological canal has the ecological purification function to farmland low-concentration area source sewage,
Suspension, the content of nitrogen and phosphorous can effectively be cut down；Existing farmland ditch space is made full use of, land resource has been saved；Facility structure
Simply, it is easy to build and later maintenance, construction cost is low.
Description of the drawings
Fig. 1 is the longitudinal sectional view of the utility model structure；
Fig. 2 is the top view of the utility model structure；
Wherein：1st, irrigation canals and ditches main body；2nd, grid；3rd, submerged plant band；4th, half permeable dike；4a, impermeable stratum；4b, pervious bed；
5th, farmland.
Specific embodiment
Below in conjunction with the accompanying drawings the utility model is described in more detail with specific embodiment.
As shown in accompanying drawing 1 to accompanying drawing 2, a kind of farmland submerged plant ecological canal of the utility model, by being arranged under farmland 5
Swim out of water existing irrigation canals and ditches transformation form, including irrigation canals and ditches main body 1, be arranged on irrigation canals and ditches main body 1 water inlet grid 2, arrange
Submerged plant in irrigation canals and ditches main body 1 with 3 and be arranged on irrigation canals and ditches main body 1 water outlet half permeable dike 4, irrigation canals and ditches main body 1 with
Farmland 5 is connected.
In the present embodiment, the depth of irrigation canals and ditches main body 1 is 1.2m, and the section configuration of irrigation canals and ditches main body 1 is inverted trapezoidal, top width degree
For 3.0m, bottom width degree is 2.0m, and the gradient is at 2 ° -4 °.The length of the utility model irrigation canals and ditches main body 1 is with the bottom slope of irrigation canals and ditches main body 1
Drop is calculated, and general canal base slope drop 20cm arranges one and half permeable dikes.
In the present embodiment, grid 2 is poured for cement and formed, and, at intervals of 10-15cm, grid 2 is to intercept farmland for grid 2
The large-scale agricultural wastes such as stalk, are to reduce cost, and the size of grid 2 is identical with former agricultural drain mouth.
In the present embodiment, submerged plant of the submerged plant with 3 kinds of plants is water caltrop, eel grass, comb tooth bog pondweed, with isodensity
Mixing plantation, 3-5/m2, to plant the water caltrop winter 11-2 months, eel grass and the comb tooth bog pondweed spring 2-4 months plant.
The height of half permeable dike 4 is the 80%-90% of the depth of irrigation canals and ditches main body 1, and in the present embodiment, the height of half permeable dike 4 is
1.0m.Half 4 points of permeable dike is upper and lower two-layer, and lower floor is the impermeable stratum 4a being made up of compacted clay, and upper strata is pervious bed 4b.
The height of impermeable stratum 4a is 0.6m, and section is trapezoidal, and bottom width is 1.5m, and top width is 1.0m, to retain irrigation canals and ditches
Water level in main body 1, it is ensured that submerged plant growth.
Cloth bag is tightly packed constructs pervious bed 4b geotechniques, geotechnological cloth bag inner stuffing rice husk, brown coal, slag, haydite
Mixture, geotechnological cloth bag is cylinder, is highly 0.3m, a diameter of 0.2m.
When rice field precipitation is less or during less paddy field drainage, sewage is concentrated in irrigation canals and ditches main body 1, extends stopping for sewage
The time is stayed, treatment effect is enhanced.Meanwhile, water level is filtered in the part of more than 0.6m by pervious bed, is adsorbed, is removed big portion
After dividing nitrogen phosphorus and suspension, downstream is slowly discharged into；And the draining of below 0.6m, then it is retained in irrigation canals and ditches main body 1, it is dirty
Water is finally reached deep purifying effect, on the one hand maintains submerged plant growth, the sewage on the other hand producing for next precipitation to have
The effect of buffering.When precipitation is more, because a large amount of rainwater import ecological canal, the unnecessary water yield will be logical in irrigation canals and ditches main body 1
The top overflow of more than half permeable dikes 4 is discharged downstream river course.Because the pollutant of farmland water outlet when rainfall is larger can be dilute by big rainfall
Release, so in this case undressed agricultural drain can't cause significant impact to downstream river water quality.
Monitoring is tracked to the present embodiment operational effect and shows that, when precipitation is less, the water yield does not cover half permeable dike 4 and pushes up
In the case of end, effluent quality is effectively purified, water outlet TN, TP, ammonia nitrogen concentration be respectively 2.1mg/L, 0.14mg/L,
0.8mg/L；When precipitation it is larger, the water yield pass through half permeable dike, 4 dam crest overflow water outlet when, the effluent quality TN of monitoring, TP, ammonia nitrogen
There is no marked difference, pollutant for the aqueous concentration under the conditions of 2.3mg/L, 0.21mg/L, 0.5mg/L, with medium rainfall intensity
Concentration significantly decreases.
The utility model is described in detail above, but the utility model is not limited to the above embodiments.All bases
Equivalence changes or modification that Spirit Essence of the present utility model is made, all should cover in protection domain of the present utility model.
Claims (7)
1. a kind of farmland submerged plant ecological canal, is formed using the existing irrigation canals and ditches transformation in farmland, it is characterised in that：Including irrigation canals and ditches master
Body, be arranged on the grid of the water inlet of the irrigation canals and ditches main body, the submerged plant being arranged in the irrigation canals and ditches main body band and arrange
In half permeable dike of the water outlet of the irrigation canals and ditches main body, half permeable dike includes being made up of not compacted clay positioned at lower section
Pervious bed and the pervious bed being made up of the geotechnological cloth bag equipped with filler above.
2. farmland submerged plant ecological canal according to claim 1, it is characterised in that：The irrigation canals and ditches subject depth is
1.0-1.2m, the section configuration of the irrigation canals and ditches main body is inverted trapezoidal, and top width degree is 2.0-4.0m, and bottom width degree is 1.5-3.0m, slope
At 1 ° -5 °, the height of half permeable dike is the 80%-90% of the irrigation canals and ditches subject depth to degree.
3. farmland submerged plant ecological canal according to claim 2, it is characterised in that：Half permeable dike is highly
0.8-1.0m。
4. farmland submerged plant ecological canal according to claim 1, it is characterised in that：The height of the impermeable stratum is
0.5-0.6m, the section of the impermeable stratum is trapezoidal, and bottom width is 1.2-1.5m, and top width is 0.6-1.0m.
5. farmland submerged plant ecological canal according to claim 1, it is characterised in that：The filler of the pervious bed is
Rice husk, brown coal, slag, the mixture of haydite, the geotechnological cloth bag is cylinder, is highly 0.3m, a diameter of 0.2m.
6. farmland submerged plant ecological canal according to claim 1, it is characterised in that：The grid is for cement is poured
Into the grid is at intervals of 10-15cm.
7. farmland submerged plant ecological canal according to claim 1, it is characterised in that：The submerged plant is with plantation
Submerged plant is water caltrop, eel grass, comb tooth bog pondweed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620665075.6U CN206089200U (en) | 2016-06-29 | 2016-06-29 | Farmland benthophyte ecological ditch canal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620665075.6U CN206089200U (en) | 2016-06-29 | 2016-06-29 | Farmland benthophyte ecological ditch canal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206089200U true CN206089200U (en) | 2017-04-12 |
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ID=59975096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620665075.6U Expired - Fee Related CN206089200U (en) | 2016-06-29 | 2016-06-29 | Farmland benthophyte ecological ditch canal |
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| CN (1) | CN206089200U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106904748A (en) * | 2017-04-27 | 2017-06-30 | 四川大学 | A kind of ecological canal and its construction method for administering agriculture non point source of pollution |
| CN107135922A (en) * | 2017-05-17 | 2017-09-08 | 昆明市园林科学研究所 | A kind of submerged plant planting matrix |
| CN108394955A (en) * | 2018-05-28 | 2018-08-14 | 环境保护部南京环境科学研究所 | A kind of small rivers forward type dephosphorization apparatus and method based on overflow weir |
| CN108467120A (en) * | 2018-04-17 | 2018-08-31 | 中国科学院南京地理与湖泊研究所 | A kind of tea place concentration development zone runoff treatment method |
| CN109673408A (en) * | 2019-02-26 | 2019-04-26 | 云南大学 | A kind of method of mountainous region or the solid soil control erosion of sloping upland plant networkization |
| CN110106842A (en) * | 2019-03-29 | 2019-08-09 | 浙江农林大学 | A method of hardening irrigation canals and ditches ecological reconstruction |
-
2016
- 2016-06-29 CN CN201620665075.6U patent/CN206089200U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106904748A (en) * | 2017-04-27 | 2017-06-30 | 四川大学 | A kind of ecological canal and its construction method for administering agriculture non point source of pollution |
| CN106904748B (en) * | 2017-04-27 | 2019-06-21 | 四川大学 | It is a kind of for administering the ecological canal and its construction method of agriculture non point source of pollution |
| CN107135922A (en) * | 2017-05-17 | 2017-09-08 | 昆明市园林科学研究所 | A kind of submerged plant planting matrix |
| CN108467120A (en) * | 2018-04-17 | 2018-08-31 | 中国科学院南京地理与湖泊研究所 | A kind of tea place concentration development zone runoff treatment method |
| CN108394955A (en) * | 2018-05-28 | 2018-08-14 | 环境保护部南京环境科学研究所 | A kind of small rivers forward type dephosphorization apparatus and method based on overflow weir |
| CN109673408A (en) * | 2019-02-26 | 2019-04-26 | 云南大学 | A kind of method of mountainous region or the solid soil control erosion of sloping upland plant networkization |
| CN110106842A (en) * | 2019-03-29 | 2019-08-09 | 浙江农林大学 | A method of hardening irrigation canals and ditches ecological reconstruction |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170412 Termination date: 20170629 |
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| CF01 | Termination of patent right due to non-payment of annual fee |