CN206109050U - Combination filtration device is got rid of in farmland groundwater runoff nitrogen phosphorus interception based on haydite, rice husk - Google Patents
Combination filtration device is got rid of in farmland groundwater runoff nitrogen phosphorus interception based on haydite, rice husk Download PDFInfo
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- CN206109050U CN206109050U CN201620969950.XU CN201620969950U CN206109050U CN 206109050 U CN206109050 U CN 206109050U CN 201620969950 U CN201620969950 U CN 201620969950U CN 206109050 U CN206109050 U CN 206109050U
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Abstract
The utility model discloses a combination filtration device is got rid of in farmland groundwater runoff nitrogen phosphorus interception based on haydite, rice husk belongs to farmland underground processing system's nitrogen phosphorus filtration technical field, including inside polyvinyl chloride (PVC) or polyethylene (PE) ripple plastics absorb water pipe and outside multiple material combinations surrounding layer, the combination surrounding layer comprises the materials such as geotechnological cloth, haydite, rice husk that permeate water, by the lining outwards wrap up in the ripple plastics absorb water manage around. The utility model discloses it is rational in infrastructure, long service life, the stifled ability reinforce of preventing becoming silted up, drainage effect is good, has good pollutant of nitrogen and phosphorus interception and gets rid of the efficiency, to improving china's farmland drainage quality of water, alleviates the water body eutrophication situation and has of great significance. Simultaneously the utility model discloses still can handle a large amount of agriculturals and industrial waste, it is energy -concerving and environment -protective, low cost.
Description
Technical field
The utility model is related to farmland underground runoff nitrogen phosphorus and intercepts the combination percolating device for removing, specifically a kind of based on pottery
Grain, the farmland underground runoff nitrogen phosphorus of rice husk are intercepted and remove combination percolating device.
Background technology
According to national Pollutant source investigation publication data for the first time, agricultural sources total nitrogen discharge capacity is 270.46 ten thousand t, accounts for discharge total
The 57.2% of amount, and mainly by agricultural run-off outflow.Agricultural non -point pollution causes substantial amounts of nitrogen and phosphorus thing to enter rivers, lake
Storehouse, causes body eutrophication, serious threatening area water environment and hydro-ecological safety, constrains the sustainable development of economic society
Exhibition.South China river network in plain areas is throughout the year higher due to the flat low-lying, level of ground water of physical features, and waterlogged disaster is administered becomes the ground
The vital task that area's farmland water conservancy works are built.In this area's high standard farmland construction, need farm field irrigation drainage engineering and agriculture
Field controlling area-source pollution technology combines, and accomplishes both to meet agricultural drain drop stain, and farmland underground runoff nitrogen and phosphorus loss is reduced again, with
The outstanding problem that optimum efficiency faces with minimum input solution, the farmland underground runoff nitrogen phosphorus based on haydite, rice husk intercepts combination
Percolating device provides a kind of new means, has to effective control agricultural non -point pollution and the ecological irrigated area construction of quickening and especially weighs
The meaning wanted.
Utility model content
The purpose of this utility model is aiming at the problems referred to above, there is provided a kind of rational in infrastructure, long service life, silting blocking energy
Power is strong, drainage effect is good, can in a large number using agricultural and trade waste, energy-conserving and environment-protective, with low cost based on haydite, rice husk
Farmland underground runoff nitrogen phosphorus is intercepted and removes combination percolating device；There are good nitrogen and phosphorus pollutantses to intercept removal effect for it, to changing
Kind China's agricultural drain water quality, alleviates Eutrophication Status and is significant.
The purpose of this utility model is achieved in that a kind of farmland underground runoff nitrogen phosphorus based on haydite, rice husk is intercepted
Combination percolating device is removed, be it is characterized in that：Including corrugation plastic suction hose, it is coated with successively on the corrugation plastic suction hose
Water geotextiles, haydite layer, rice husk layer, permeable geotextiles, haydite layer, rice husk layer constitute the combination outsourcing of corrugation plastic suction hose
Layer；The material of the corrugation plastic suction hose is polyvinylchloride or polythene PE.
The combination surrounding layer integral thickness of the corrugation plastic suction hose that the permeable geotextiles, haydite layer, rice husk layer are constituted
For 14～18cm；In combination surrounding layer, innermost layer is permeable geotextiles, and middle level is thickness 6～8cm haydite layers, and outermost layer is thickness
Degree 8～10cm rice husk layers.
The haydite layer is porous medium layer, by soil and slag sintering is formed, the haydite of a diameter of 10～14mm is constituted.
The utility model simple, manufacturing rational in infrastructure is easy, easy to use, by the utility model, including inside
Polyvinyl chloride（PVC）Or polyethylene（PE）Ripple suction hose and outside multiple material combination surrounding layer, combination surrounding layer by
The materials such as permeable geotextiles, haydite, rice husk are constituted, and water suction hidden pipe is wrapped in from inside to outside（Ripple suction hose）Around.Combination is outer
Cladding thickness is 14～18cm, wherein, innermost layer wraps up permeable geotextiles, and middle level is thickness 6～8cm haydite layers, and outermost layer is
Thickness 8～10cm rice husk layers.Further, the haydite layer is porous medium layer, being sintered by soil and slag, a diameter of 10
Some haydites of～14mm are constituted.
Farmland underground runoff nitrogen phosphorus based on haydite, rice husk intercepts the application for removing combination percolating device：Based on haydite, rice
The farmland diafiltration nitrogen phosphorus of shell intercepts the alternative existing corrugation plastic hidden pipe of removal combination percolating device and carries out subdrainage, while rising
To the effect for intercepting removal farmland underground runoff nitrogen and phosphorus pollutantses.
Compared with prior art, the utility model has the advantages that：
First, combination percolating device is embedded in farmland underground, and main material has polyvinyl chloride（PVC）Or polyethylene（PE）Ripple
Line suction hose, permeable geotextiles, haydite, rice husk etc., permeable geotextiles, haydite, rice husk are wrapped in from inside to outside water suction hidden pipe week
Enclose, form the farmland underground runoff nitrogen phosphorus based on haydite, rice husk and intercept combination percolating device.By to soil in seepage channel
The physics of solution, chemistry, biological triple collaborations are processed, and agricultural drain and nitrogen phosphorus are intercepted and removes target combination, realize it
Dual-use function.
Second, combination surrounding layer outermost layer is thickness 8～10cm rice husk layers, and rice husk prototype gradation, epigranular permeate system
Number reaches 0.1cm/s～0.01cm/s, is 10 ~ 100 times of soil permeability coefficient, and water penetration is strong, can be effectively improved the row of loaded filter
Water characteristic；Rice husk is strong rich in siliceous corrosion resistance, and complete humification is often 5 ~ 6 years, and effective life is the 2 of rice wheat straw
Times；Southern area abounds with paddy rice and draws materials conveniently, and convenient transportation, use cost is low；Still can keep after rice husk humification good
Institutional framework, persistently plays percolation；Rice husk organic material is also beneficial to the interception of nitrate nitrogen and phosphorus in interflow subsurface drainage.
3rd, combination surrounding layer middle level is thickness 6～8cm haydite layers, porosity degree up to more than 60%, 3 times of penetrating power
In rice husk, haydite adsorptivity is strong, is conducive to ammoniacal nitrogen in interflow subsurface drainage to intercept；The more crucially haydite outsourcing of even porous
Layer advantageously forms microbiologic population, can effectively remove the nitrogen P elements in the seepage flow of farmland.
4th, combination surrounding layer internal layer selects permeable geotextiles, permeable geotextiles to be wrapped in ripple modeling automatically by machine
The outside of material suction hose, rice husk is convenient with haydite laying construction.It is corrosion-resistant and permeable geotextiles have good drainability,
Can prevent fine particle from passing through simultaneously, prevent hole silting from affecting drainage performance.
Description of the drawings
Fig. 1 is planar structure schematic diagram of the present utility model；
Fig. 2 is longitudinal plane structure schematic diagram of the present utility model；
Fig. 3 is trench section structural representation of the present utility model；
In figure：1 rice husk layer, 2 corrugation plastic suction hoses, 3 permeable geotextiles, 4 haydite layers, 5 backfills, 6 percolating devices, 7
Waterproof stereoplasm tube.
Specific embodiment
As Figure 1-3, a kind of farmland underground runoff nitrogen phosphorus based on haydite, rice husk is intercepted and removes combination percolating device,
First the groove that bottom width is 40cm or so is excavated in field, cutting depth and spacing are according to local Agricultural Drain Project design standard
And soil characteristic, determined by water force, hidden pipe（Corrugation plastic suction hose）Than drop control 1/1000～1/2000, so
Afterwards in the rice husk bed course that the bottom laying 10cm of groove is thick, the corrugation plastic suction hose 2 for being enclosed with permeable geotextiles 3 is positioned over
The center of rice husk bed course, is 6～8cm haydites in the outer laying depth of the corrugation plastic suction hose 2 for wrapping up permeable geotextiles 3
Layer 4, then in outer layer covering 8～10cm rice husk layers of haydite dielectric layer, finally filled up groove with backfill 5 closely knit.In addition, on
Stating combination percolating device need to arrange fluid-tight plastic conduit, i.e., waterproof hard at 1.5～2.0m of delivery port section
Pipe 7.
The nitrogen phosphorus of diafiltration body intercepts removal effect：Arrange the nitrogen phosphorus based on haydite, rice husk in the filtration system of farmland to block
Clip except combination percolating device.Farmland plastic ink absorption hidden pipe（Corrugation plastic suction hose）Caliber, the depth of burying and spacing foundation is worked as
Ground Agricultural Drain Project design standard and soil characteristic, are determined by water force.Outermost layer is thickness 8～10cm rice husks
Layer, middle level are thickness 6～8cm haydite layers, and internal layer is permeable geotextiles.Rice husk, haydite and permeable geotextiles combination outsourcing material
Constitute loaded filter and meet water penetration by force, soil particle from coarse to fine is intercepted layer by layer, it is ensured that its draining and silting blocking.Diameter 10～
14mm, the haydite sintered by soil and slag constitute the thick porous medium layers of 6～8cm, with outer layer rice husk, permeable geotextiles
The combination percolating device for constituting together is detained, is filtered, being adsorbed to the nitrogen phosphorus in underground percolation, redox, while
Preferably attachment and growth conditions are provided for microbiologic population, the nitrification and denitrification effect of microorganism becomes drainage procedure nitrogen phosphorus
The main path of removal, the result of the test of applicants shows that interception of the device to nitrogen phosphorus in farmland underground runoff is removed
Rate is up to more than 35%.
In figure：L is the length of corrugation plastic suction hose, and B is the spacing of corrugation plastic suction hose, and D is corrugation plastic water suction
The buried depth of pipe.
The utility model is rational in infrastructure, long service life, and silting blocking ability is strong, and drainage effect is good, with good nitrogen phosphorus
Pollutant is intercepted and removes effect, to improving China's agricultural drain water quality, is alleviated Eutrophication Status and is significant.Together
When the utility model can also in a large number using agricultural and trade waste, energy-conserving and environment-protective are with low cost.
Claims (3)
1. a kind of farmland underground runoff nitrogen phosphorus based on haydite, rice husk is intercepted and removes combination percolating device, be it is characterized in that：Including ripple
Line plastic ink absorption pipe（2）, the corrugation plastic suction hose（2）On be coated with permeable geotextiles successively（3）, haydite layer（4）, rice husk
Layer（1）, permeable geotextiles（3）, haydite layer（4）, rice husk layer（1）Constitute corrugation plastic suction hose（2）Combination surrounding layer；It is described
Corrugation plastic suction hose（2）Material be polyvinylchloride or polythene PE.
2. a kind of farmland underground runoff nitrogen phosphorus based on haydite, rice husk according to claim 1 is intercepted and removes combination diafiltration
Device, is characterized in that：The permeable geotextiles（3）, haydite layer（4）, rice husk layer（1）The corrugation plastic suction hose of composition（2）'s
Combination surrounding layer integral thickness is 14～18cm；In combination surrounding layer, innermost layer is permeable geotextiles（3）, middle level be thickness 6～
8cm haydite layers（4）, outermost layer is thickness 8～10cm rice husk layers（1）.
3. a kind of farmland underground runoff nitrogen phosphorus based on haydite, rice husk according to claim 1 is intercepted and removes combination diafiltration
Device, is characterized in that：The haydite layer（4）For porous medium layer, if sintered by soil and slag, a diameter of 10～14mm
Dry haydite is constituted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620969950.XU CN206109050U (en) | 2016-08-30 | 2016-08-30 | Combination filtration device is got rid of in farmland groundwater runoff nitrogen phosphorus interception based on haydite, rice husk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620969950.XU CN206109050U (en) | 2016-08-30 | 2016-08-30 | Combination filtration device is got rid of in farmland groundwater runoff nitrogen phosphorus interception based on haydite, rice husk |
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| Publication Number | Publication Date |
|---|---|
| CN206109050U true CN206109050U (en) | 2017-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620969950.XU Active CN206109050U (en) | 2016-08-30 | 2016-08-30 | Combination filtration device is got rid of in farmland groundwater runoff nitrogen phosphorus interception based on haydite, rice husk |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109874442A (en) * | 2019-04-08 | 2019-06-14 | 金陵科技学院 | A kind of field original position ecological circulation water process irrigation and drainage system with functions |
-
2016
- 2016-08-30 CN CN201620969950.XU patent/CN206109050U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109874442A (en) * | 2019-04-08 | 2019-06-14 | 金陵科技学院 | A kind of field original position ecological circulation water process irrigation and drainage system with functions |
| CN109874442B (en) * | 2019-04-08 | 2024-03-29 | 金陵科技学院 | Irrigation and drainage system for field in-situ ecological circulating water treatment |
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