CN206368092U - The nitrogen phosphorus that rice field interflow subsurface drainage delivery port vertical and horizontal is combined intercepts removal device - Google Patents
The nitrogen phosphorus that rice field interflow subsurface drainage delivery port vertical and horizontal is combined intercepts removal device Download PDFInfo
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- CN206368092U CN206368092U CN201621168836.3U CN201621168836U CN206368092U CN 206368092 U CN206368092 U CN 206368092U CN 201621168836 U CN201621168836 U CN 201621168836U CN 206368092 U CN206368092 U CN 206368092U
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- delivery port
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Abstract
The utility model discloses the nitrogen phosphorus interception removal device that a kind of rice field interflow subsurface drainage delivery port vertical and horizontal is combined, and belongs to irrigation and water conservancy technical field.The nitrogen phosphorus that rice field interflow subsurface drainage delivery port vertical and horizontal is combined intercepts removal device, including upper strata stalk drainage blanket, underlying earth closed drainage layer, hidden pipe terminal horizontal percolating device and water outlet and two layers of drainage blanket are in the vertical shaft vertical penetration device of right-angled intersection；Hidden pipe terminal horizontal percolating device leading portion is the rice husk being modified by NaOH, and back segment is biological activated carbon, the permeable geotextiles of outer layer covers.Stalk drainage blanket is by rice and wheat cropses stalk constituting, and stalk is set in parallel in closed drain upper strata being column structure.Filling stalk handle inside vertical shaft between two layers of drainage blanket, and independent control valve is respectively mounted, shaft cover is installed in upper end.The utility model is rational in infrastructure, easy construction, can do timesharing classification to nitrogen and phosphorus pollution for different levels of ground water and intercept removal processing, reach the purpose for mitigating rice field pollution of area source.
Description
Technical field
The utility model belongs to irrigation and water conservancy technical field, is related to a kind of nitrogen phosphorus and intercepts removal device, specifically one
Plant the nitrogen phosphorus interception removal device that rice field interflow subsurface drainage delivery port vertical and horizontal is combined.
Background technology
Although Chemical Fertilizers of Paddy Field has downward trend using total amount in recent years, consumption per mu remains high, and adds fertilization structure
Unreasonable, chemical fertilizer utilization ratio is not high, causes to be lost in after rainfall and irrigation and drainage seriously, the runoff containing nitrogen phosphorus nutrient directly passes through row
Ditch imports river and exacerbates river eutrophication.Because nitrogen phosphorus is the nutrient of plant growth, Water phosphorus content
Substantial increase, certainly will cause undue growth and the breeding of aquatile and some algae, so as to cause dissolved oxygen content in water body
Decline, trigger the mortality of aquatic animal and water plant, and the organism of corruption is further exacerbated by water pollution, to environment
Bring great risk.
At present, China also predominantly stays in how research is carried out in earth's surface in terms of agricultural non-point source pollution nitrogen phosphorus intercepts removal
Intercept, adsorb, deposit, convert and absorb.By building ecological canal in paddy system, plant is configured in the trench more
Thing, and set the complementary job facilities such as permeable dike, interception dam to block the materials such as the nitrogen in irrigation canals and ditches water body, phosphorus in the trench
Cut, adsorb, so as to purify water, or the interception for filtering the devices such as weir progress nitrogen phosphorus is set in gutter.Planted due to aquatic
Thing absorbs nitrogen phosphorus and accelerates growth, and this is accomplished by regular harvesting of strengthening management, and otherwise will result in water plant overgrowing congestion
Gutter make it that connate water bottom rots to form secondary pollution, it is necessary to spend very big artificial throwing after impeded drainage or Plant death
Enter.And because the water table ratio of drainage ditch of rice field is relatively low, when being percolated the too low rainfall of height on weir current will overflow to intercept and imitate
It is really little；The excessive height on paddy field drainage diafiltration weir can easily cause alluvial to influence draining again.In produce reality, soil table
A large amount of in face and arable layer are not absorbed by crops the nitrogen phosphorus utilized and not only can also by way of rainwash into river
River is imported by rice field underground percolation.For current present situation, seek quick, efficient, economic interception and remove rice field underground
The method of nitrogen phosphorus has great importance to environmental protection in runoff.
Utility model content
The purpose of this utility model is to provide the nitrogen phosphorus interception that a kind of rice field interflow subsurface drainage delivery port vertical and horizontal is combined
Removal device, rationally, construction and installation are convenient for the apparatus structure, can realize the effect for persistently effectively intercepting nitrogen phosphorus, can effectively change
Kind soil environment situation and promotion agricultural drain, improve crop yield and reduce interflow subsurface drainage pollution, promotion agricultural sustainable development,
With good environmental benefit, the purpose for reducing rice field pollution of area source is finally reached.
The purpose of this utility model is achieved through the following technical solutions, and a kind of rice field interflow subsurface drainage delivery port is vertical
With the nitrogen phosphorus of horizontal integration intercept removal device, including upper strata stalk drainage blanket, underlying earth closed drainage layer, hidden pipe end
Horizontal percolating device and water outlet and two layers of drainage blanket are in the vertical shaft vertical penetration device of right-angled intersection.
The stalk drainage blanket is by rice and wheat cropses stalk constituting, and stalk is put down being diameter 0.12 ~ 0.15m column structures
Row is arranged at closed drain upper strata, forms flow channels, and buried depth is 1.5 at 0.5 ~ 0.6m, stalk drainage blanket outlet water at tail end mouthful ~
Hard thin-wall pvc pipe or PE pipes are set in the range of 2.0m.
Hidden pipe end percolating device is cylinder, and diameter is identical with installing hidden pipe, total length 150cm, wherein rice husk
Interception length is 100cm, and the length of biological activated carbon is 50cm.Percolating device leading portion is the rice husk being modified by NaOH, after
Section is biological activated carbon, the permeable geotextiles of outer layer covers.
The water outlet vertical shaft is cylinder, and a diameter of 20 ~ 25cm, length is 1.0 ~ 1.2m, vertical shaft and two layers of draining
Pipe is in right-angled intersection, and seam crossing is made to fill and stalk drainage blanket identical straw in the vertical shaft between encapsulation process, two layers of drainpipe
Stalk handle, as vertical penetration device, and is respectively mounted in vertical shaft the independent control valve of two layers of drainpipe, vertical shaft upper end and ground
Face is concordant, and is capped shaft cover.
The application of rice field interflow subsurface drainage nitrogen phosphorus blocking apparatus：The device is set in rice field, by upper strata stalk drainage blanket,
Vertical penetration device collective effect in underlying earth closed drainage layer, the horizontal percolating device of hidden pipe end and vertical shaft, is intercepted
The nitrogen phosphorus in the interflow subsurface drainage utilized is not absorbed by crops.
Compared with prior art, the utility model has the advantages that：
First, the proportion that the nitrate nitrogen content in the subdrainage of rice field accounts for total nitrogen is higher, is used as in stalk drainage blanket with carbon
Rice and wheat cropses stalk organic material based on source, the nitrate nitrogen in the underground percolation of rice field, which is intercepted, to remove has obvious advantage,
And after effective life terminates, stalk is rotted in soil for organic matter, help to increase soil nutrient.Crop material humic
Good institutional framework can be still kept after matter, its nitrogen phosphorus diafiltration interception function can be still played within a certain period of time；
Second, the percolating device leading portion of hidden pipe outlet is the rice husk by being modified by NaOH, is made up of binding material
Cylinder, back segment is the biological activated carbon of cylinder, and both are rolled in together by geotextiles.Using NaOH as the rice of modifier treatment
Shell, the oily matter on its surface etc. is removed, and cellulose, hemicellulose and lignin then by different degrees of destruction, make tool
There is hydroxyl of good adsorption properties etc. point subbase group to be exposed, and form more apertures and mesopore, cause modified rice husk
Adsorption effect is substantially better than former rice husk.It is demonstrated experimentally that can be carried to the adsorption effect of nitrogen and phosphorus pollutantses through rice husk modified NaOH
Rise more than 90%.The porosity of biological activated carbon is less than rice husk, flows through the interflow subsurface drainage of rice husk and can carry out two by biological activated carbon
Secondary nitrogen phosphorus, which is intercepted, to be removed.The device can sufficiently utilize rice hull waste, can gather materials on the spot, easy construction is cheap, and
And without destructively descending hidden pipe, be fixedly mounted very convenient.Meanwhile, use the rice husk and biological activated carbon being modified by NaOH
Nitrogen phosphorus effect in the interflow subsurface drainage of dual intercepting rice field becomes apparent from, and the length of the device can also extend.
3rd, the material of the main interception nitrogen phosphorus of the device is rice and wheat cropses stalk, rice husk and biological activated carbon, without broken
Bad original drainage pipeline, does not influence subdrainage, while the device, which can also be regularly replaced, reaches that lasting interception removes rice
The effect of field interflow subsurface drainage nitrogen phosphorus.
4th, the vertical shaft of water outlet and the formation right-angled intersection of two layers drainage blanket, and it is mounted with vertical shaft two layers of draining
The control valve of layer, valve can realize the independent control to two layers of drainage blanket.When level of ground water is shallower（Not up to hidden pipe buried depth）
When, stalk layer valve is closed, and hidden pipe layer valve is opened, and the interflow subsurface drainage in stalk drainage blanket flows separately through vertical shaft by vertical shaft
In stalk vertical penetration device and the horizontal percolating device of hidden pipe end further purified, finally export and flow from hidden pipe
Go out；When level of ground water is deeper（Reach hidden pipe buried depth）When, two layers of valve is opened simultaneously, and the nitrogen and phosphorus pollutantses in interflow subsurface drainage are with certainly
The form so landed is intercepted and removed by two layers of drainage blanket.Vertical shaft percolating device can have by the form of controlled valve
The effective interception and removal of nitrogen and phosphorus pollutantses in interflow subsurface drainage under water level conditions are descended in the solution of effect in different times, differently, are reached
To the effect of timesharing classification processing.
Brief description of the drawings
Fig. 1 is the structural representation that the utility model rice field interflow subsurface drainage nitrogen phosphorus intercepts removal device；
Fig. 2 is the vertical section structure schematic diagram that the utility model rice field interflow subsurface drainage nitrogen phosphorus intercepts removal device；
Fig. 3 is delivery port vertical penetration of the present utility model and control device structural representation；
Fig. 4 is hidden pipe end percolating device structural representation of the present utility model；
Fig. 5 is hidden pipe end percolating device schematic cross-sectional view of the present utility model；
Fig. 6 is longitudinal plane structure schematic diagram on the left of the percolating device of hidden pipe end of the present utility model；
Fig. 7 is longitudinal plane structure schematic diagram on the right side of the percolating device of hidden pipe end of the present utility model；
Fig. 8 is stalk drainage blanket structural representation of the present utility model；
Fig. 9 is stalk drainage blanket schematic cross-sectional view of the present utility model.
In figure：1 stalk drainage blanket, 2 underground closed drainage layers, 3 delivery port percolating devices, the vertical percolating device of 4 vertical shafts, 5
Hard thin-wall plastic tube, 6 control valves, 7 stalks handle, 8 rice husks, 9 biological activated carbons, 10 permeable geotextiles.
Embodiment
As shown in figs 1-9, the nitrogen phosphorus that a kind of rice field interflow subsurface drainage delivery port vertical and horizontal is combined intercepts removal device, bag
Include upper strata stalk drainage blanket 1, underlying earth closed drainage layer 2, the horizontal percolating device 3 and water outlet and two layers of hidden pipe end
Drainage blanket is in the part of vertical shaft vertical penetration device 4 four of right-angled intersection；Raceway groove is excavated by design requirement and lay underground row first
Water hidden pipe 2, cutting depth is 1.0 ~ 1.2m, and set in hidden pipe end inside delivery port percolating device 3, device by passing through NaOH
The rice husk 8 being modified, then the barrier as first of interception nitrogen phosphorus is acted on by binding material, then be made up of biological activated carbon 9
Second intercepts barrier, outside to be formed by permeable geotextiles parcel 10.20 ~ 25cm of diameter, length are set in water outlet simultaneously
1.0 ~ 1.2m cylindrical vertical shaft, vertical shaft is vertical with hidden pipe, and bottom connects with the horizontal percolating device of hidden pipe end, vertical shaft away from
Two 15cm communicated apertures are respectively stayed at 0.5 ~ 0.6m of ground.Soil is backfilled, is at 0.5 ~ 0.6m in closed drain upper strata buried depth
Be arranged in parallel stalk drainage blanket 1, and drainage blanket is made up of rice and wheat cropses stalk 7, and stalk handle is diameter 0.12 ~ 0.15m column knots
Structure, makes stalk be can be inserted into lucky in the reserved aperture of vertical shaft, forms flow channels.Vertical shaft and two layers of drainpipe are handed in cross
Each seam crossing of fork, another termination hard thin-wall plastic tube 5 of aperture, vertical shaft and two layers of drainage blanket makees encapsulation process, two layers of row
Filling and stalk drainage blanket identical stalk handle in vertical shaft between water pipe, as vertical penetration device, and in vertical shaft respectively
The independent control valve 6 of two layers of drainpipe is installed, vertical shaft upper end is concordant with ground, and is capped shaft cover.Finally will be in backfill
Earth is to original depth.
The device has the effect for intercepting nitrogen phosphorus：There is described device interflow subsurface drainage nitrogen phosphorus to intercept removal effect, upper strata
Horizontal stalk diafiltration dress in stalk drainage blanket, underlying earth closed drainage layer, the vertical penetration device and vertical shaft of hidden pipe end
Put and play the effect that nitrogen phosphorus intercepts removal jointly, the rice and wheat cropses stalk organic material based on carbon source is in the underground percolation of rice field
Nitrate nitrogen intercept remove it is extremely strong, while the vertical penetration device installed in underground hidden pipe terminal horizontal percolating device and vertical shaft can
Automatic absorption nitrogen phosphorus so that the nitrogen phosphorus for finally importing river is reduced, the combined use of each several part device plays interception and goes to denitrogenate phosphorus, subtracts
The effect of light pollution of area source.
Interflow subsurface drainage nitrogen phosphorus is intercepted in above-mentioned steps, is rice husk, biological activated carbon and straw by being modified by NaOH
Automatic absorbing is realized that nitrogen phosphorus intercepts what is removed by stalk jointly.
The utility model is rational in infrastructure, and construction and installation are convenient, and cost is cheap, realizes that lasting nitrogen phosphorus intercepts the effect removed,
Timesharing classification can be done to nitrogen and phosphorus pollution for different levels of ground water and intercepts removal processing, the mesh for mitigating rice field pollution of area source is reached
's.
Claims (4)
1. the nitrogen phosphorus that rice field interflow subsurface drainage delivery port vertical and horizontal is combined intercepts removal device, it is characterized in that, the nitrogen phosphorus is blocked
Cutting removal device includes upper strata stalk drainage blanket, underlying earth closed drainage layer and vertical shaft vertical penetration device；Upper strata stalk
Drainage blanket is located at directly over underlying earth closed drainage layer, between upper strata stalk drainage blanket, underlying earth closed drainage layer
It is arranged in parallel；Upper strata stalk drainage blanket water side sets hard thin-wall plastic tube；Underlying earth closed drainage layer water side is set
Delivery port percolating device；The vertical percolating device lower end of vertical shaft is connected with underlying earth closed drainage layer, and vertical shaft oozes vertically
Filter device upper end and pass through the upper strata stalk drainage blanket, the vertical percolating device top surface of vertical shaft is concordant with ground.
2. the nitrogen phosphorus that rice field interflow subsurface drainage delivery port vertical and horizontal according to claim 1 is combined intercepts removal device,
It is characterized in that, the upper strata stalk drainage blanket is made up of rice and wheat cropses stalk handle, and stalk handle is diameter 0.12 ~ 0.15m column knots
Structure, buried depth is to set hard thin-wall plastic tube in the range of 1.5-2.0m at 0.5 ~ 0.6m, upper strata stalk drainage blanket outlet water at tail end mouthful,
Hard thin-wall plastic tube is that pvc pipe or PE are managed.
3. the nitrogen phosphorus that rice field interflow subsurface drainage delivery port vertical and horizontal according to claim 1 is combined intercepts removal device,
It is characterized in that, the delivery port percolating device includes the rice husk section set gradually and biological activated carbon section, and rice husk section is by rice husk
The permeable geotextiles of outer wrapping are formed；Biological activated carbon section is to be formed by the permeable geotextiles of biological activated carbon outer wrapping；Delivery port oozes
Device cylinder is filtered, diameter is identical with underground hidden pipe, total length 150cm, wherein rice husk segment length are 100cm, biological activated carbon
Segment length is 50cm；Rice husk in the rice husk section is the rice husk being modified by NaOH.
4. the nitrogen phosphorus that rice field interflow subsurface drainage delivery port vertical and horizontal according to claim 1 is combined intercepts removal device,
It is characterized in that, the vertical shaft vertical penetration device is cylinder, and a diameter of 20-25cm, length is 1.0 ~ 1.2m, and vertical shaft vertically oozes
Filter device makees encapsulation process, the vertical shaft vertical penetration dress with upper strata stalk drainage blanket, underlying earth closed drainage layer seam crossing
Interior filling stalk handle is put, vertical shaft vertical penetration device is distinguished with upper strata stalk drainage blanket, underlying earth closed drainage layer junction
Control valve is installed, vertical shaft vertical penetration device is provided with shaft cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621168836.3U CN206368092U (en) | 2016-10-26 | 2016-10-26 | The nitrogen phosphorus that rice field interflow subsurface drainage delivery port vertical and horizontal is combined intercepts removal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621168836.3U CN206368092U (en) | 2016-10-26 | 2016-10-26 | The nitrogen phosphorus that rice field interflow subsurface drainage delivery port vertical and horizontal is combined intercepts removal device |
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| Publication Number | Publication Date |
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| CN206368092U true CN206368092U (en) | 2017-08-01 |
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|---|---|---|---|
| CN201621168836.3U Expired - Fee Related CN206368092U (en) | 2016-10-26 | 2016-10-26 | The nitrogen phosphorus that rice field interflow subsurface drainage delivery port vertical and horizontal is combined intercepts removal device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108002468A (en) * | 2017-11-14 | 2018-05-08 | 中电建水环境治理技术有限公司 | The method and system of polluted underground water are repaired using radial pattern arrangement horizontal transverse-pipe |
| CN108661154A (en) * | 2018-06-11 | 2018-10-16 | 宋正国 | Caisson type bathroom hidden pipe plant fermentation drain valve |
| CN109502916A (en) * | 2018-12-20 | 2019-03-22 | 西安航空学院 | Resident's sewerage ecological system |
| CN111903269A (en) * | 2020-08-17 | 2020-11-10 | 盐城工学院 | A drainage desalination system for saline and alkaline land improvement |
-
2016
- 2016-10-26 CN CN201621168836.3U patent/CN206368092U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108002468A (en) * | 2017-11-14 | 2018-05-08 | 中电建水环境治理技术有限公司 | The method and system of polluted underground water are repaired using radial pattern arrangement horizontal transverse-pipe |
| CN108661154A (en) * | 2018-06-11 | 2018-10-16 | 宋正国 | Caisson type bathroom hidden pipe plant fermentation drain valve |
| CN109502916A (en) * | 2018-12-20 | 2019-03-22 | 西安航空学院 | Resident's sewerage ecological system |
| CN111903269A (en) * | 2020-08-17 | 2020-11-10 | 盐城工学院 | A drainage desalination system for saline and alkaline land improvement |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170801 Termination date: 20211026 |
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| CF01 | Termination of patent right due to non-payment of annual fee |