CN106592535B - A kind of rotary island formula ecological purification channel suitable for large-scale sight spot - Google Patents
A kind of rotary island formula ecological purification channel suitable for large-scale sight spot Download PDFInfo
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- CN106592535B CN106592535B CN201611216951.8A CN201611216951A CN106592535B CN 106592535 B CN106592535 B CN 106592535B CN 201611216951 A CN201611216951 A CN 201611216951A CN 106592535 B CN106592535 B CN 106592535B
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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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B11/00—Drainage of soil, e.g. for agricultural purposes
- E02B11/005—Drainage conduits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
- E02B5/08—Details, e.g. gates, screens
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses a kind of rotary island formula ecological purification channels suitable for large-scale sight spot, it purifies channel and is equipped with water inlet (17), water outlet (18), it is characterized in that, the purification channel is circular ring shape, water drainage channel (14) is formed between water inlet (17) and water outlet (18), water drainage channel (14) center is equipped with baffle wall (16) along water (flow) direction, and water drainage gate (15) is respectively equipped on the water drainage channel (14) of baffle wall (16) upstream and downstream；The purification channel includes the first to eight channel (21-28), and the first to eight channel (21-28) is equipped with groynes (2), and the inverse water (flow) direction of groynes (2) is arranged.The present invention, which cleverly extends flow path using topography, makes water flow be fully purified, the concentration of the harmful substances such as heavy metal and pesticide and the sundries for swimming in the water surface in water can be effectively reduced, purifying box can timely update replacement and the present invention takes into account water drainage, and good appearance can be used in series.
Description
Technical field
The present invention relates to a kind of ecological purification channels, and in particular to a kind of rotary island formula ecological purification suitable for large-scale sight spot
Channel.
Background technique
Water flow at sight spot often compares closing, cannot swap well with external source, therefore can gradually accumulate
Each heavy metal species, pesticide, nitrate remnants need to take into account beauty up to exceeded, thus some landscape ecologicals is needed to purify canals
Road purifies water flow.Now with purification water flow mode mainly include the following types: the first be by biological cleaning ball be mounted in by
In the iron cage of steel wire and steelframe composition, entire iron cage is sunk into channel bottom, to achieve the effect that purify water flow.It is for second
Discharge conduit, is arranged in the top of reservoir side by a kind of trap drainage landscape channel, is arranged in discharge conduit inside bottom
Rubble filter layer arranges that drainpipe, drainage pipe end extend on the outside of drainage ditch and be directed toward reservoir in rubble filter layer.Rubble
Isolation board is set on filter layer, strainer is set on isolation board, arranges soil above strainer.Rainwater flows in discharge conduit, warp
It crosses soil, filter screen, rubble filter layer and reservoir is entered by drainpipe, it is ensured that the cleanliness at reservoir water source.
Both the above water purification mode mainly has the following insufficient:
Although first way can play the role of adsorption filtration to the harmful substance in water, for swimming on the water surface
Sundries can not intercept, but also greatly affect the conveyance capacity of channel；The second way can only filter some volumes compared with
Big sundries, for the pesticide being dissolved in water, heavy metal cannot play the role of filtration, purification, and side will be furnished with reservoir
The constraint condition received is more and can not drain flooded fields.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of rotary island formula ecology suitable for large-scale sight spot
Channel is purified, the present invention is controlled the direction of water flow by topography, greatly extends the path of water flow, is that water flow can be in purification canal
Sufficient purification filtering is obtained in road.The filtering of biological cleaning ball in groynes of the water flow by the blocking of groynes, can be effective
Reduce the concentration of the harmful substances such as heavy metal and pesticide and the sundries for swimming in the water surface in water.The present invention is cleverly prolonged using topography
Having grown flow path makes water flow be fully purified, and purifying box can timely update replacement and the present invention takes into account water drainage, beautiful outline form
It sees, can be used in series.
The present invention provides a kind of rotary island formula ecological purification channels suitable for large-scale sight spot, purify channel and are equipped with water inlet
Mouth, water outlet, purification channel are circular ring shape, and water drainage channel is formed between water inlet and water outlet, and channel center of draining flooded fields is along water flow
Direction is equipped with baffle wall, is respectively equipped with water drainage gate on the water drainage channel of baffle wall upstream and downstream；
The purification channel includes the first channel, the second channel, third channel, the 4th channel, fifth pathway, the 6th canal
Road, the 7th channel, the 8th channel；First channel, the second channel are located at the two sides of the water drainage channel；It drains flooded fields channel and the
Third channel, fifth pathway are equipped between one channel, the intersection of third channel, fifth pathway and water drainage channel, which is located at, divides water
Wall；The 4th channel is equipped between third channel, fifth pathway；It drains flooded fields and is equipped with the 6th channel, the 8th between channel and the second channel
The intersection of channel, the 6th channel, the 8th channel and water drainage channel is located at baffle wall；It is equipped between 6th channel, the 8th channel
7th channel；
First channel, the second channel and water drainage channel intersection are the first intersection, the first channel and third channel
Intersection, the second channel and the 8th channel intersection are the second intersection, and third, five, six, eight channel intersections cross for third
Place, the first channel and fifth pathway intersection, the second channel and the 6th channel intersection are the 4th intersection, the first channel, the
Second channel and water drainage channel intersection are the 5th intersection, and the geopotentia of first, second, third and fourth, five intersections successively reduces；
The first to eight channel is equipped with groynes, and groynes is arranged against water (flow) direction.
Preferably, the groynes includes purifying box, service bridge and braced frame composition, and braced frame is by vertical steel pipe, water
Lateral system steel bar and lateral ties steel bar form, and purifying box is put into the mounting groove that braced frame is formed, and purifying box includes purification
Biological cleaning ball in case steelframe, steel wire and purifying box on purifying box steelframe.
Preferably, the groynes in the ratio between the projected length of Transverse to the flow direction and stable river width less than 0.33, groynes with
Bank angle is 60 °.
Preferably, the biological cleaning ball is by polyolefin plastics skeleton and using hydroformylation fibre synthetic fibre as the soft cellulose filler of material
It constitutes, biological cleaning ball specific surface area is 2500 ~ 4000m2/m3, biological cleaning ball density is 3.5 ~ 7.0kg/m3, biological cleaning
Bulb diameter is 5cm.
Preferably, the biological cleaning ball surface adheres to one layer of biomembrane.
Preferably, first channel, the second channel are arranged symmetrically；The third channel, the 8th channel are arranged symmetrically；Institute
State fifth pathway, the 6th channel is arranged symmetrically；4th channel, the 7th channel are arranged symmetrically.
Preferably, the 4th channel, the 7th channel are arc.
Preferably, the baffle wall is diamond shape, and two acute angles of diamond shape are located at the water (flow) direction of the water drainage channel.
Preferably, the groynes is arranged in the first to eight channel side.
Preferably, the braced frame is U-shaped, including sequentially connected first straight line, bending section, second straight line,
Service bridge is equipped between first straight line and second straight line, service bridge is vertically arranged with first straight line, second straight line.
Compared with prior art, the invention has the following advantages:
First, the present invention includes purification channel, groynes, purifying box, service bridge, vertical steel pipe, horizontal connection steel bar, transverse direction
Contact steel bar, steel wire, fixing buckle, biological cleaning ball, water (flow) direction, purifying box steelframe, mounting groove, water drainage channel, water drainage lock
Door, baffle wall.Specific as follows: the geopotentia for being primarily due to first, second, third and fourth, five intersections successively reduces that (topography is by height
To it is low be successively 1. > 2. > 3. > 4. > 5.), 1. 2. flow direction is generally from flowing to, 3. and 4. in 2. punishment stream, flow to respectively,
3. flowing to 4., finally 4. flow to 5., purification channel arranges that groynes, groynes are mainly made of purifying box, service bridge and braced frame.
Braced frame is made of vertical steel pipe, horizontal connection steel bar and lateral ties steel bar, is put into purifying box in the mounting groove of formation.Fourth
Dam is arranged against water (flow) direction, is 60 ° with bank angle, when the exceed standard material that water flow flows through groynes Shi Shuizhong can be cleaned in case
The adsorption filtration of biological cleaning ball, and the biggish sundries of volume floated on the water surface can be stopped by groynes, then by some artificial
Cleaning the water surface can be kept to clean.The concentration that can greatly reduce heavy metal, pesticide is filtered for multiple times by groynes in water flow.When
Water drainage gate is opened when needing to drain flooded fields, water flow is directly drained flooded fields from water drainage channel.(purifying channel topography is successively from high to low
1. > 2. > 3. > 4. > 5., that is to say, that 3. and 4. 1. 2. flow direction is generally from flowing to, in 2. punishment stream, flow to respectively, 3.
It flows to 4., finally 4. flows to the path for 5. extending water flow flowing.) present invention by extend the path of water flow again by groynes and
Purifying box in groynes absorbs and filter be right sundries and harmful substance.
Second, biological cleaning ball is constituted it by polyolefin plastics skeleton and by the soft cellulose filler of material of hydroformylation fibre synthetic fibre
Specific surface area range is 2500 ~ 4000m2/m3, density is 3.5 ~ 7.0kg/m3, biological ball purification bulb diameter is 5cm.In order into one
Step enhancing dirt-removing power adheres to one layer of biomembrane in biological ball surface, it is possible to reduce the substances such as organic matter, nitrogen, phosphorus in sewage
Content.Service bridge on groynes can be convenient staff and raise the sundries stopped by groynes, moreover it is possible to facilitate research people
Regular clarifier analysis and research and the observation water flow of taking of member.
Third, 1, the present invention using groynes and biological cleaning ball can adsorb the pesticide, heavy metal, nitric acid being dissolved in water
The harmful substances such as salt, moreover it is possible to the good biggish sundries of volume crossed in drainage.2, groynes of the invention is in Transverse to the flow direction
Projected length and the ratio between stable river width less than 0.33, be short groynes, it is smaller to water currents.3, the present invention can not only filter
Purification can also take into account water drainage, and water drainage gate water flow is opened when needing to drain flooded fields to be discharged along water drainage channel.4, this hair
It is bright can be dealed on the merits of each case according to the pollution level in area with arranged in series.5, the configuration of the present invention is simple, good appearance, to scape
Point will not have a great impact.
Detailed description of the invention
Fig. 1 is the top view for the rotary island formula ecological purification channel that the present invention is suitable for large-scale sight spot；
Fig. 2 is the floor plan of the single groynes for the rotary island formula ecological purification channel that the present invention is suitable for large-scale sight spot；
Fig. 3 is the structural representation of the present invention single purifying box suitable for the rotary island formula ecological purification channel at large-scale sight spot
Figure；
Fig. 4 is that the frame in groynes depth of water direction of the present invention suitable for the rotary island formula ecological purification channel at large-scale sight spot shows
It is intended to；
Fig. 5 is the mounting plane signal of the purifying box for the rotary island formula ecological purification channel that the present invention is suitable for large-scale sight spot
Figure.
In figure: 1 purification channel, 2 groynes, 3 purifying boxs, 4 service bridges, 5 vertical steel pipes, 6 horizontal connection steel bars, 7 laterally join
It is steel bar, 8 steel wires, 9 fixing buckles, 10 biological cleaning balls, 11 water (flow) directions, 12 purifying box steelframes, 13 mounting grooves, 14 water drainage canals
Road, 15 water drainage gates, 16 baffle walls, 17 water inlets, 18 water outlets, 21 first channels, 22 second channels, 23 third channels, 24
4th channel, 25 fifth pathway, 26 the 6th channels, 27 the 7th channels, 28 the 8th channels.
Specific embodiment
Technical solution of the present invention is described in detail below, but protection scope of the present invention is not limited to and the implementation
Example.
Embodiment: as shown in Figs. 1-5, a kind of rotary island formula ecological purification channel suitable for large-scale sight spot, including 1 purification canal
Road, 2 groynes, 3 purifying boxs, 4 service bridges, 5 vertical steel pipes, 6 horizontal connection steel bars, 7 lateral ties steel bars, 8 steel wires, 9 are fixed
Button, 10 biological cleaning balls, 11 water (flow) directions, 12 purifying box steelframes, 13 mounting grooves, 14 water drainage channels, 15 water drainage gates, 16 points of water
Wall, 17 water inlets, 18 water outlets, 21 first channels, 22 second channels, 23 third channels, 24 the 4th channels, 25 fifth pathway,
26 the 6th channels, 27 the 7th channels, 28 the 8th channels.
Purify channel and be equipped with water inlet 17, water outlet 18, purification channel is circular ring shape, water inlet 17 and water outlet 18 it
Between formed water drainage channel 14, water drainage 14 center of channel along water (flow) direction be equipped with baffle wall 16, the water drainage canal of 16 upstream and downstream of baffle wall
Water drainage gate 15 is respectively equipped on road 14；
The purification channel includes the first channel 21, the second channel 22, third channel 23, the 4th channel 24, fifth pathway
25, the 6th channel 26, the 7th channel 27, the 8th channel 28；First channel 21, the second channel 22 are located at the water drainage channel
14 two sides；It drains flooded fields and is equipped with third channel 23, fifth pathway 25, third channel the 23, the 5th between channel 14 and the first channel 21
The intersection of channel 25 and water drainage channel 14 is located at baffle wall 16；The 4th channel is equipped between third channel 23, fifth pathway 25
24；It drains flooded fields and is equipped with the 6th channel 26, the 8th channel 28, the 6th channel 26, the 8th channel 28 between channel 14 and the second channel 22
It is located at baffle wall 16 with the intersection of water drainage channel 14；The 7th channel 27 is equipped between 6th channel 26, the 8th channel 28；
First channel 21, the second channel 22 and water drainage 14 intersection of channel are the first intersection, the first channel 21 with
23 intersection of third channel, the second channel 22 and 28 intersection of the 8th channel are the second intersection, third, five, six, eight channels
23,25,26,28 intersections are third intersection, the first channel 21 and 25 intersection of fifth pathway, the second channel 22 and the 6th canal
26 intersection of road is the 4th intersection, and the first channel 21, the second channel 22 and water drainage 14 intersection of channel are the 5th intersection, the
One, the geopotentia of two, three, four, five intersections successively reduces；
The first to the eight channel 21-28 is equipped with groynes 2, and groynes 2 is arranged against water (flow) direction.
Groynes 2 includes purifying box 3, service bridge 4 and braced frame composition, and braced frame is by vertical steel pipe 5, horizontal connection steel
Item 6 and lateral ties steel bar 7 form, and purifying box 3 is put into the mounting groove 13 that braced frame is formed, and purifying box 3 includes purifying box
The biological cleaning ball 10 in steel wire 8 and purifying box 3 on steelframe 12, purifying box steelframe 12.It is equipped at the top of purifying box 3 solid
Surely 9 are detained.
Groynes 2, less than 0.33, is short groynes, to channel mistake in the ratio between the projected length of Transverse to the flow direction and stable river width
It is smaller to flow capacity.Groynes 2 arranges that groynes 2 and bank angle are 60 ° against water (flow) direction.
Biological cleaning ball 10 is made of polyolefin plastics skeleton with by the soft cellulose filler of material of hydroformylation fibre synthetic fibre, biology
10 specific surface area of purifying ball is 2500 ~ 4000m2/m3, 10 density of biological cleaning ball is 3.5 ~ 7.0kg/m3, biological cleaning ball 10 is directly
Diameter is 5cm.
One layer of biomembrane is adhered on 10 surface of biological cleaning ball.
First channel 21, the second channel 22 are arranged symmetrically；The third channel 23, the 8th channel 28 are arranged symmetrically；It is described
Fifth pathway 25, the 6th channel 26 are arranged symmetrically；4th channel 24, the 7th channel 27 are arranged symmetrically.
4th channel 24, the 7th channel 27 are arc.
Baffle wall 16 is diamond shape, and two acute angles of diamond shape are located at the water (flow) direction of the water drainage channel 14.
Groynes 2 is arranged in the side the first to eight channel 21-28.
Braced frame is U-shaped, including sequentially connected first straight line, bending section, second straight line, first straight line with
Service bridge (4) are equipped between second straight line, service bridge (4) is vertically arranged with first straight line, second straight line.
As shown in Fig. 1,2,3,4,5.The present invention adsorbed water flow to reach by 3 purifying boxs in 2 groynes and groynes
The angle of the effect of filter, groynes against water (flow) direction arrangement and bank formation is 60 °, by 5 vertical steel pipes, 6 horizontal connection steel bars and 7
Lateral ties steel bar forms the inside steelframe and external steelframe of groynes, and it is net to will form placement 3 between internal steelframe and external steelframe
Change 13 mounting grooves of case.Purifying box is made of 12 purifying box steelframes and 8 steel wires, and inside is put into 10 biological cleaning balls.Work as water flow
When just through groynes, the harmful substances such as heavy metal and pesticide in water flow can be by 10 biological cleaning ball adsorption cleanings, and some volumes
The biggish sundries swum on the water surface can be stopped by groynes, and the periodic cleaning of cooperating personnel can keep the water surface clear
It is clean.
Groynes is arranged apart in channel two sides, under normal usage water flow due to topography from 1. flow to 2.,
3. and 4. 2. punishment stream, flows to respectively, 3. flows to 4., finally 4. flow to 5., greatly increase the path of water flow, enable water flow
It enough flows through more groynes and obtains more sufficient purification filtering.And 15 water drainage gates are opened when needing to drain flooded fields, water flow is from 14
Water drainage channel flows directly out.
As described above, must not be explained although the present invention has been indicated and described referring to specific preferred embodiment
Limitation of the present invention, under the premise of not departing from the spirit and scope of the present invention that appended claims define, can to its
Various changes can be made in form and in details.
Claims (6)
1. a kind of rotary island formula ecological purification channel suitable for large-scale sight spot, purification channel is equipped with water inlet (17), water outlet
(18), characterized in that the purification channel is circular ring shape, and water drainage channel is formed between water inlet (17) and water outlet (18)
(14), water drainage channel (14) center is equipped with baffle wall (16) along water (flow) direction, the water drainage channel (14) of baffle wall (16) upstream and downstream
On be respectively equipped with water drainage gate (15)；
The purification channel includes the first channel (21), the second channel (22), third channel (23), the 4th channel (24), the 5th
Channel (25), the 6th channel (26), the 7th channel (27), the 8th channel (28)；First channel (21), the second channel (22) are respectively
Positioned at the two sides of water drainage channel (14)；It drains flooded fields between channel (14) and the first channel (21) equipped with third channel (23), the
The intersection of five channels (25), third channel (23), fifth pathway (25) and water drainage channel (14) is located at baffle wall (16)；Third
The 4th channel (24) is equipped between channel (23), fifth pathway (25)；It is equipped between water drainage channel (14) and the second channel (22)
6th channel (26), the 8th channel (28), the 6th channel (26), the 8th channel (28) and the intersection of water drainage channel (14) are located at
Baffle wall (16)；The 7th channel (27) is equipped between 6th channel (26), the 8th channel (28)；
First channel (21), the second channel (22) and water drainage channel (14) intersection are the first intersection, the first channel
It (21) is the second intersection with third channel (23) intersection, the second channel (22) and the 8th channel (28) intersection, third,
Five, six, eight channels (23,25,26,28) intersection is third intersection, the first channel (21) and fifth pathway (25) intersection,
Second channel (22) and the 6th channel (26) intersection are the 4th intersection, the first channel (21), the second channel (22) and water drainage
Channel (14) intersection is the 5th intersection, and the geopotentia of first, second, third and fourth, five intersections successively reduces；
The first to eight channel (21-28) is equipped with groynes (2), and the inverse water (flow) direction of groynes (2) is arranged；
First channel (21), the second channel (22) are arranged symmetrically；The third channel (23), the 8th channel (28) symmetrical cloth
It sets；The fifth pathway (25), the 6th channel (26) are arranged symmetrically；4th channel (24), the 7th channel (27) symmetrical cloth
It sets；
4th channel (24), the 7th channel (27) are arc；
The baffle wall (16) is diamond shape, and two acute angles of diamond shape are located at the water (flow) direction of water drainage channel (14)；
The groynes (2) is arranged in the first to eight channel (21-28) side.
2. a kind of rotary island formula ecological purification channel suitable for large-scale sight spot according to claim 1, characterized in that described
Groynes (2) includes purifying box (3), service bridge (4) and braced frame composition, and braced frame is by vertical steel pipe (5), horizontal connection steel
Item (6) and lateral ties steel bar (7) form, and are put into purifying box (3) in the mounting groove (13) that braced frame is formed, purifying box (3)
Including the biological cleaning ball in the steel wire (8) and purifying box (3) on purifying box steelframe (12), purifying box steelframe (12)
(10).
3. a kind of rotary island formula ecological purification channel suitable for large-scale sight spot according to claim 2, characterized in that described
For groynes (2) in the ratio between the projected length of Transverse to the flow direction and stable river width less than 0.33, groynes (2) and bank angle are 60 °.
4. a kind of rotary island formula ecological purification channel suitable for large-scale sight spot according to claim 2 or 3, characterized in that
The biological cleaning ball (10) is made of polyolefin plastics skeleton with by the soft cellulose filler of material of hydroformylation fibre synthetic fibre, and biology is net
Change ball (10) specific surface area is 2500 ~ 4000m2/m3, biological cleaning ball (10) density is 3.5 ~ 7.0kg/m3, biological cleaning ball
(10) diameter is 5cm.
5. a kind of rotary island formula ecological purification channel suitable for large-scale sight spot according to claim 4, characterized in that described
One layer of biomembrane is adhered on biological cleaning ball (10) surface.
6. a kind of rotary island formula ecological purification channel suitable for large-scale sight spot according to claim 2, characterized in that described
Braced frame is U-shaped, including sequentially connected first straight line, bending section, second straight line, first straight line and second straight line
Service bridge (4) are equipped between portion, service bridge (4) is vertically arranged with first straight line, second straight line.
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| CN201611216951.8A CN106592535B (en) | 2016-12-26 | 2016-12-26 | A kind of rotary island formula ecological purification channel suitable for large-scale sight spot |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4507605B2 (en) * | 2004-01-19 | 2010-07-21 | 章雄 飯田 | Dust remover for irrigation canals |
| CN101973638B (en) * | 2010-11-09 | 2011-11-09 | 河海大学 | Ecological percolating type water purification groin system |
| CN102220747B (en) * | 2011-02-23 | 2013-01-23 | 河海大学 | Combined type water-purifying spur dike group system for heavily polluted rivers |
| KR101155744B1 (en) * | 2011-11-09 | 2012-07-03 | 현대건설주식회사 | Riverbed structure having accelerating flow path for preventing accumulation |
| CN103803760B (en) * | 2014-01-26 | 2015-04-22 | 河海大学 | Wet land purification system with serially-connected rice field drainage ditches in irrigated area |
| CN104003574B (en) * | 2014-05-21 | 2015-07-15 | 河海大学常州校区 | Labyrinth-type ecological purification pool suitable for drainage ditch in farmland |
| CN104326628B (en) * | 2014-10-31 | 2016-04-27 | 河海大学常州校区 | A kind of flow around type ecological purifier being applicable to light weight sand property improvement irrigated area |
| CN204529468U (en) * | 2015-04-03 | 2015-08-05 | 环境保护部南京环境科学研究所 | A kind ofly do not affect the ecological canal structure of flood passage for collection and treatment early-stage rainwater |
| CN205711978U (en) * | 2016-04-18 | 2016-11-23 | 杨郑 | A kind of water conservancy irrigation canals and ditches being provided with filtering function |
| CN206570766U (en) * | 2016-12-26 | 2017-10-20 | 扬州大学 | A kind of rotary island formula ecological purification channel suitable for large-scale sight spot |
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