CN105464050B - Renewable filler-plant society formula irrigation canals and ditches-bank protection nitrogen phosphorus ecological intercepting system - Google Patents
Renewable filler-plant society formula irrigation canals and ditches-bank protection nitrogen phosphorus ecological intercepting system Download PDFInfo
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- CN105464050B CN105464050B CN201511031431.5A CN201511031431A CN105464050B CN 105464050 B CN105464050 B CN 105464050B CN 201511031431 A CN201511031431 A CN 201511031431A CN 105464050 B CN105464050 B CN 105464050B
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- ditches
- irrigation canals
- plant
- bank protection
- building block
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
- E02B5/02—Making or lining canals
Abstract
The invention discloses a kind of renewable filler plant society formula irrigation canals and ditches-bank protection nitrogen phosphorus ecological intercepting system include section it is trapezoidal irrigation canals and ditches, the irrigation canals and ditches are set between farmland and river, and the canal wall of irrigation canals and ditches adjoining river side is connected with ecological revetment；The irrigation canals and ditches canal wall is equipped with irrigation canals and ditches three-dimensional plant net, and the irrigation canals and ditches three-dimensional plant is equipped with concrete anti-seepage building block on the net, and the hollow part kind of the concrete anti-seepage building block is implanted with slope-protecting plant；The trench bottom is equipped with concrete anti-seepage building block and irrigation canals and ditches packing layer from the bottom to top, and the hollow part kind of the concrete anti-seepage building block is implanted with water plant；The ecological revetment includes channel revetment, and bank protection packing layer is equipped in the channel revetment, and bank protection three-dimensional plant net is equipped on the bank protection packing layer, and online kind of the bank protection three-dimensional plant is implanted with slope-protecting plant.The present invention has the characteristics that treatment efficiency is high, has a wide range of application, landscape effect is good, is suitable for the purified treatment of farmland sewage.
Description
Technical field
The present invention relates to a kind of water purification systems, and more specifically, it relates to a kind of renewable filler-plant society formulas
Irrigation canals and ditches-bank protection nitrogen phosphorus ecological intercepting system.
Background technology
China's fertilizer application amount occupies first place in the world, but the utilization rate of chemical fertilizer is very low, chemical fertilizer be excessively used and fertilization structure
It is unreasonable cause fertilizer rainfall and irrigate after be largely lost, the runoff containing a large amount of nitrogen phosphorus nutrients is directly discharged into river or lake
Pool, forms and is seriously threatened to body eutrophication.Studies have shown that TAIHU LAKE eutrophication problem has with agricultural non-point source pollution
Direct relation.Agricultural non-point source pollution has become one of the primary pollution source of China's water pollution, and Control the Plan Pollution Sources have arrived
Very urgent stage.
The country about pollution of area source research by the 1980s, such as Wuhan City East Lake basin mountainous region and Farmland
Domain nitrogen and phosphorus loss, the agricultural nonpoint source pollution of Jiangsu Taihu Lake and its control way research etc..Currently, the pollution of area source control that China is common
Engineering processed includes mainly plant buffer strip, artificial wet land system, multi- pond system, ecological canal system etc., using vegetation to soil
The absorption interception capacity of earth nutrient realizes retention and filtering to area source pollutants.In Process of Engineering Construction, the landscape with surrounding
It combines closely, does not cut down Rural Plane Source Pollution load only effectively, can also improve rural environment landscape to a certain extent.
Ecological canal has preferable catharsis to agricultural area source pollutants, is to be suitble to China's national situation and region feature
The effectively technological means of control agricultural non-point source pollution.China's farmland ditch is numerous and more unified, if utilizing existing farmland ditch
Canal is built up with the ditch wetland for intercepting function, will reduce the risk that Agricultural land loss N, P enter water body.But work as heavy rain
When, irrigation canals and ditches displacement is big, and hydraulic detention time is short, and ecological canal will significantly decline the absorption interception effect of nitrogen phosphorus, lead
It causes a large amount of high concentration agricultural drains to be directly entered river or enters subsequent water treatment unit, cause river or follow-up water process
The pollutant burden of unit increases substantially.How to ensure to reduce the dense of nitrogen and phosphorus pollutants before storm runoff enters river
Degree becomes and needs urgently to solve the problems, such as at present.
Invention content
Purpose of the invention is to overcome the shortcomings in the prior art, provides a kind of collection sewage transport, interception and purification
In renewable filler-plant society formula irrigation canals and ditches-bank protection nitrogen phosphorus ecological intercepting system of one, which makes full use of farmland, shows
There are irrigation canals and ditches and channel revetment, it is more to solve the problems, such as that ecological engineering occupies cultivated land, there is treatment efficiency height, have a wide range of application, scape
See the features such as effect is good.
The purpose of the present invention is what is be achieved through the following technical solutions.
Renewable filler-plant society formula irrigation canals and ditches-bank protection nitrogen phosphorus ecological intercepting system of the present invention, including section are trapezoidal
Irrigation canals and ditches, the irrigation canals and ditches are set between farmland and river, and the canal wall of irrigation canals and ditches adjoining river side is connected with ecological revetment；
It is equipped with irrigation canals and ditches three-dimensional plant net on the inside of the canal wall of the irrigation canals and ditches, the irrigation canals and ditches three-dimensional plant is equipped with hollow coagulation on the net
Native impermeable building block, the hollow part for the concrete anti-seepage building block that the irrigation canals and ditches canal wall is laid with, which is filled with filler and plants, is implanted with bank protection plant
Object；The trench bottom is equipped with hollow concrete anti-seepage building block and irrigation canals and ditches packing layer, the trench bottom paving from the bottom to top
If concrete anti-seepage building block hollow part filled with filler and plant be implanted with water plant；Irrigation canals and ditches adjoining river side
Canal wall height is less than the canal wall height of adjacent farmland side, and the upper ends Qu Bi of irrigation canals and ditches adjoining river side are arranged at equal intervals
There is boss；The ecological revetment includes channel revetment, and bank protection packing layer, the bank protection packing layer are equipped in the channel revetment
On be equipped with the bank protection three-dimensional plant net being connected with irrigation canals and ditches three-dimensional plant net, online kind of the bank protection three-dimensional plant is implanted with bank protection
Plant.
The upper ends Qu Bi of irrigation canals and ditches Adjacent Farms side are provided with irrigation canals and ditches gallery and bear down on one.
The concrete anti-seepage building block is made of hollow hexagonal revetment brick, two sides of the concrete anti-seepage building block
It is separately provided for convex block and groove that each concrete anti-seepage building block connects to each other.
The irrigation canals and ditches packing layer and bank protection packing layer are made of rubble or cobble.
Compared with prior art, advantageous effect caused by technical scheme of the present invention is：
(1) present invention is not take up arable land, and irrigation canals and ditches are set between farmland and river, is changed according to existing irrigation canals and ditches and Channel slope
It makes and builds up, low engineering cost, operation are simple, are suitable for being widely applied；
(2) in the present invention, concrete anti-seepage building block is by the connection close-packed arrays of convex block and groove in irrigation canals and ditches peripheral wall and bottom
Portion effectively prevent leaking, and slope-protecting plant or water plant are planted in hollow part, and intensive plant stem-leaf and root system can effective mistakes
Suspended matter in filter, retention agricultural run-off, and absorb the nutrients such as the nitrogen phosphorus intercepted；
(3) in the present invention, the water plant planted in trench bottom concrete anti-seepage building block selects emergent aquactic plant and heavy water
Plant can go out the oxygen transport in air to root successively using the diffusion of plant root in plant root whisker ambient enviroment
Existing aerobic zone, aerobic area and anaerobic zone are conducive to nitrification, anti-nitration reaction and microorganism and act on the excess accumulation of phosphorus, reach
It denitrogenates, the effect of the pollutants such as phosphorus；
(4) in the present invention, trench bottom is equipped with irrigation canals and ditches packing layer, and bank protection packing layer is equipped in channel revetment, described
Irrigation canals and ditches packing layer and bank protection packing layer are made of fillers such as cobble or rubbles, are conducive to the formation and growth of biomembrane, are constituted and are planted
Object-microflora improves water purification ability；
(5) in the present invention, the nitrogen phosphorus that filler is adsorbed in irrigation canals and ditches packing layer is under the action of the absorption of plant and bacterium
It gradually decreases, filler local environment Drought-wet change, aerobic anaerobism alternately, is conducive to the pollutants such as organic matter in filler and is divided
Solution absorbs, and to reach the regenerated effect of filler, nothing needs to change filler；
(6) it in the present invention, is laid with bank protection packing layer on ecological revetment and bank protection three-dimensional plant net, bank protection three-dimensional plant is online
Kind be implanted with slope-protecting plant, and end is connected bank protection three-dimensional plant with irrigation canals and ditches three-dimensional plant net on the net, using slope-protecting plant root system with
The anchorage effect of bank protection three-dimensional plant net reaches protective slope structure stabilization, and bank protection packing layer and slope-protecting plant can be to the nitrogen in draining
The pollutants such as phosphorus play interception and absorption；
(7) in the present invention, boss is arranged close to the upper ends Qu Bi of river side in irrigation canals and ditches at equal intervals, builds into Great Wall shape
Shape, and connect with ecological revetment, the end of irrigation canals and ditches may be connected to river or downstream wastewater processing unit, and irrigation canals and ditches end is arranged
There is emptying gate, under normal circumstances, agricultural run-off can be directly discharged to irrigation canals and ditches end after irrigation canals and ditches packing layer and aquatic plant purification
The river or downstream wastewater processing unit of connection are held, but when irrigation canals and ditches flow is larger or downstream wastewater processing unit receiving ability has
In limited time, irrigation canals and ditches end emptying gate is closed, by the agricultural drains of irrigation canals and ditches will from Great Wall shape furrow bank it is short from flow out, uniformly point
Cloth is discharged into river after the absorption of slope-protecting plant and rubble, interception, effectively removes agricultural drain on the ecological revetment of connection
In various pollutants, avoid when heavy rain that a large amount of agricultural drains are unprocessed to be directly entered river.
Description of the drawings
Fig. 1 is the sectional view of the present invention.
Fig. 2 is A-A views in Fig. 1.
Fig. 3 is the structural schematic diagram of concrete anti-seepage building block in the present invention.
Reference numeral:25 water plant of irrigation canals and ditches three-dimensional plant net 3 irrigation canals and ditches packing layer, 4 concrete anti-seepage building block, 6 irrigation canals and ditches
Gallery bears down on one 8 bank protection packing layer, 9 slope-protecting plant, 10 bank protection three-dimensional plant net
Specific implementation mode
The invention will be further described below in conjunction with the accompanying drawings.
As shown in Figure 1 to Figure 3, renewable filler of the invention-plant society formula irrigation canals and ditches-bank protection nitrogen phosphorus ecological intercepting system
System, including section are trapezoidal irrigation canals and ditches, and the irrigation canals and ditches are set between farmland and river, and the irrigation canals and ditches close on farmland and river
The canal wall gradient can be 60 ° or so, canal body is about 0.8m deeply, and the upper ends Qu Bi of irrigation canals and ditches Adjacent Farms side are provided with
The irrigation canals and ditches gallery being made of pea gravel concreten bears down on one 6, and the canal wall of irrigation canals and ditches adjoining river side is connected with ecological revetment, described
Irrigation canals and ditches abut canal wall height of the canal wall height less than adjacent farmland side of river side, the canal of irrigation canals and ditches adjoining river side
Wall upper end is provided with boss at equal intervals, and the rectangular boss of a 20cm long, 10cm wide can be built every 20cm, forms Great Wall shape
The canal wall of shape.
Irrigation canals and ditches three-dimensional plant net 2 is equipped on the inside of the canal wall of the irrigation canals and ditches, on the irrigation canals and ditches three-dimensional plant net 2 and irrigation canals and ditches
Bottom is equipped with hollow concrete anti-seepage building block 4, and the effective antiseepage of irrigation canals and ditches peripheral wall and bottom, the concrete anti-seepage can be made to build
Block 4 can be made of hollow hexagonal revetment brick, and two sides of the concrete anti-seepage building block 4 can be separately provided for each
The convex block and groove that concrete anti-seepage building block connects to each other.4 upper layer of concrete anti-seepage building block of the trench bottom is equipped with
Irrigation canals and ditches packing layer 3, the irrigation canals and ditches packing layer 3 can be made of fillers such as rubble or cobbles, be conducive to the formation and growth of biomembrane, right
Pollutant has certain filtering, suction-operated, provides carrier for microorganism attachment, is easy to microorganism membrane, constitutes the micro- life of plant-
Object system can more efficiently intercept and purify the nutrition pollutant such as the suspended matter in agricultural drain and nitrogen phosphorus, effectively improve ecology
The water purification ability of irrigation canals and ditches.The hollow part for the concrete anti-seepage building block 4 that the irrigation canals and ditches canal wall is laid with can be filled the fillers such as soil and come
Short slope-protecting plant 9 is planted, the hollow part for the concrete anti-seepage building block 4 that the trench bottom is laid with can be filled soil etc. and fill out
Material carrys out planting aquatic plants 5, and emergent aquactic plant and submerged plant can be selected in the water plant, and life can be selected in the water plant 5
Object amount is big, demanding volume of nitrogen and phosphorus the is high perennial water plant wild rice stem in local or yellow flag etc., can effectively intercept in agricultural run-off
Particulate matter simultaneously absorbs the nutriments such as the nitrogen phosphorus intercepted, and is built with around plant root whisker anti-conducive to nitrification, denitrification
With microorganism to the aerobic zone, aerobic area and anaerobic zone of the excess accumulation of phosphorus it should achieve the effect that denitrogenate, the pollutants such as phosphorus.
The nitrogen phosphorus adsorbed in the irrigation canals and ditches packing layer 3 gradually decreases under the action of the absorption of plant and bacterium, ring residing for filler
Border Drought-wet change, aerobic anaerobism alternately, are conducive to the pollutants such as organic matter in filler and are decomposed absorption, to reach filler
Regenerated effect, nothing need to change filler.
The ecological revetment has certain gradient, can be transformed by channel revetment according to actual conditions, the river
After the subsoil compacting of shore protection, it is laid with bank protection packing layer 8, the bank protection packing layer 8 may be configured as 5-10cm, and the bank protection is filled out
The bed of material 8 can be made of rubble or cobble etc..Bank protection three-dimensional plant net 10, the bank protection three are equipped on the bank protection packing layer 8
The irrigation canals and ditches three-dimensional plant net 2 that the upper end of dimension plant net 10 can be laid with canal wall is connected, and is planted on the bank protection three-dimensional plant net 10
There is slope-protecting plant 9, reaching protective slope structure using the anchorage effect of 9 root system of slope-protecting plant and bank protection three-dimensional plant net 10 stablizes, institute
It states and turf transplanting mode plantation bermudagrass grass can be used on bank protection three-dimensional plant net 10, winter replay rye grass ensures different seasons
Section bank protection has a covering of vegetation straw cord, and rubble and vegetation straw cord can play the interception and suction to pollutants such as nitrogen phosphorus in draining
Adduction.According to the specific terrain of the existing irrigation canals and ditches in farmland, this purification system structure type is concatenated, water body is enable
Access multi-stage filtration purifying.
The end of the irrigation canals and ditches may be connected to river or downstream wastewater processing unit, and the end of irrigation canals and ditches is arranged controllably
Emptying gate, when field runoff volume is larger or contaminants in drainage concentration is higher or downstream wastewater processing unit receiving ability is limited
When, ecological canal processing capacity cannot meet, at this time the emptying gate of closing irrigation canals and ditches end, and it is low to rise to canal wall for water level in irrigation canals and ditches
When short place, agricultural run-off will from Great Wall shape canal wall it is short from flow out, be evenly distributed on the ecological revetment of and then irrigation canals and ditches side
On, it is discharged into river after ecology absorption, the absorption of ecological revetment filler and plant intercept purification.
Although the function and the course of work of the present invention are described above in conjunction with attached drawing, the invention is not limited in
Above-mentioned concrete function and the course of work, the above mentioned embodiment is only schematical, rather than restrictive, ability
The those of ordinary skill in domain under the inspiration of the present invention, is not departing from present inventive concept and scope of the claimed protection situation
Under, many forms can also be made, all of these belong to the protection of the present invention.
Claims (4)
1. a kind of renewable filler-plant society formula irrigation canals and ditches-bank protection nitrogen phosphorus ecological intercepting system, including section are trapezoidal ditch
Canal, which is characterized in that the irrigation canals and ditches are set between farmland and river, and the canal wall of irrigation canals and ditches adjoining river side is connected with life
State bank protection；It is equipped with irrigation canals and ditches three-dimensional plant net on the inside of the canal wall of the irrigation canals and ditches, during the irrigation canals and ditches three-dimensional plant is equipped on the net
It filled with filler and plants the hollow part of empty concrete anti-seepage building block, the concrete anti-seepage building block that the irrigation canals and ditches canal wall is laid with
There is slope-protecting plant；The trench bottom is equipped with hollow concrete anti-seepage building block and irrigation canals and ditches packing layer, the ditch from the bottom to top
The hollow part for the concrete anti-seepage building block that canal bottom is laid with, which is filled with filler and plants, is implanted with water plant；The irrigation canals and ditches abut river
The canal wall height of road side is less than the canal wall height of adjacent farmland side, and the irrigation canals and ditches abut between upper ends Qu Bi of river side etc.
Away from be provided with boss；The ecological revetment includes channel revetment, and bank protection packing layer, the shield are equipped in the channel revetment
The bank protection three-dimensional plant net being connected with irrigation canals and ditches three-dimensional plant net, online kind of the bank protection three-dimensional plant are equipped on the packing layer of slope
It is implanted with slope-protecting plant.
2. renewable filler according to claim 1-plant society formula irrigation canals and ditches-bank protection nitrogen phosphorus ecological intercepting system, special
Sign is that the upper ends Qu Bi of irrigation canals and ditches Adjacent Farms side are provided with irrigation canals and ditches gallery and bear down on one.
3. renewable filler according to claim 1-plant society formula irrigation canals and ditches-bank protection nitrogen phosphorus ecological intercepting system, special
Sign is that the concrete anti-seepage building block is made of hollow hexagonal revetment brick, two sides of the concrete anti-seepage building block
It is separately provided for convex block and groove that each concrete anti-seepage building block connects to each other.
4. renewable filler according to claim 1-plant society formula irrigation canals and ditches-bank protection nitrogen phosphorus ecological intercepting system, special
Sign is that the irrigation canals and ditches packing layer and bank protection packing layer are made of rubble or cobble.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511031431.5A CN105464050B (en) | 2015-12-30 | 2015-12-30 | Renewable filler-plant society formula irrigation canals and ditches-bank protection nitrogen phosphorus ecological intercepting system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511031431.5A CN105464050B (en) | 2015-12-30 | 2015-12-30 | Renewable filler-plant society formula irrigation canals and ditches-bank protection nitrogen phosphorus ecological intercepting system |
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| Publication Number | Publication Date |
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| CN105464050A CN105464050A (en) | 2016-04-06 |
| CN105464050B true CN105464050B (en) | 2018-08-21 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106865891B (en) * | 2017-03-06 | 2020-03-20 | 常州大学 | Control system for nitrogen and phosphorus recovery and non-point source pollution in rice field |
| CN109553190A (en) * | 2018-11-20 | 2019-04-02 | 云南省农业科学院农业环境资源研究所 | A method of the ecological ditch pool, which is embedded in, using buffer strip intercepts farmland nitrogen phosphorus runoff |
| CN109469078B (en) * | 2018-12-30 | 2021-06-11 | 内蒙古蒙草矿山科技有限责任公司 | Flexible green-recovering ditch-protecting method |
| CN109874639B (en) * | 2019-03-21 | 2024-02-02 | 金陵科技学院 | Ecological engineering system for retaining water and soil in farmland sand canal |
| CN112062280B (en) * | 2020-06-28 | 2022-05-03 | 桂林理工大学 | Combined trapezoidal ecological ditch |
| CN112875868A (en) * | 2021-03-02 | 2021-06-01 | 安徽农业大学 | Method for solving agricultural non-point source pollution |
| CN113582448A (en) * | 2021-07-29 | 2021-11-02 | 长三角(义乌)生态环境研究中心 | Processing system for reducing farmland non-point source pollution |
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| JP4318192B2 (en) * | 1999-08-04 | 2009-08-19 | 道夫 永坂 | Vegetation waterway |
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| CN102145957A (en) * | 2011-02-10 | 2011-08-10 | 河海大学 | Method for constructing agricultural drainage and ecological purification system |
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