CN207031083U - A kind of anchor formula submerged plant ecological floating island device - Google Patents
A kind of anchor formula submerged plant ecological floating island device Download PDFInfo
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- CN207031083U CN207031083U CN201621329204.0U CN201621329204U CN207031083U CN 207031083 U CN207031083 U CN 207031083U CN 201621329204 U CN201621329204 U CN 201621329204U CN 207031083 U CN207031083 U CN 207031083U
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- submerged plant
- floating ring
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The utility model discloses a kind of anchor formula submerged plant ecological floating island device, belong to water ecological environment engineering field and field for the treatment of of water pollution, including floating ring（1）, anchor chain（2）, fixed net（3）, submerged plant（4）.Floating ring（1）For the structure of the square, rectangle, circle or the ellipse that are made up of the steel pipe or engineering plastics pipe of hollow sealing, anchor chain（2）For thin tightwire or cord, fixed net（3）For stainless steel or plastic silk screen, submerged plant（4）For net can be fixed with the submerged plant of rootless growth（3）And anchor chain（2）It is fixed on floating ring（1）On, submerged plant（4）It is placed in floating ring（1）With fixed net（3）In the basketry of composition, by anchor chain（2）It is fixed on the spud pile in water body or bank（5）On.Device of the present utility model, simple in construction, it is easy to make, and cost is low, and processing water body effect is good, can improve and maintain the higher transparency of water body, and water transparency is at least 1m, for a long time using can be in more than 2m, available for river, lake and landscape waters.
Description
Technical field
It the utility model is related to water ecological environment engineering field and field for the treatment of of water pollution, more particularly to a kind of heavy water of anchor formula
Plant ecological floating island device.
Background technology
Industrial wastewater, sanitary sewage and other discarded objects enter the water bodys such as rivers,lakes and seas, are made more than water body self-purification ability
Into the pollution of water body.And then cause the change of the physics, chemistry, biology of water body etc. feature, so as to have influence on the utilization of water
Value, is detrimental to health or destroys ecological environment.
The reason for causing water pollution is many, and its main source has following several respects：(1) industrial wastewater：Industry
Waste water is the main reason for pollution in world wide.The links of industrial processes can all produce waste water.Have a great influence
Industrial wastewater is essentially from enterprises such as metallurgy, plating, papermaking, printing and dyeing, process hides.(2) sanitary sewage：Refer to people's daily life
Washes and excrement and urine waste etc..Sewage from medical institutions is a kind of special sanitary sewage, and main harm is to cause
Enteric infectious disease.(3) rural sewage：Organic matter and people and animals' enteropathogens such as chemical fertilizer, agricultural chemicals, the fecalurias such as main nitrogenous, phosphorus, potassium
Deng.(4) other：Caused solid waste contains substantial amounts of inorganic and organic matter soluble in water in industrial processes, by
Rainwater shower causes water pollution.
In fact, water body is not only by a type of pollution, but polluted simultaneously by a variety of properties, and it is various
Pollution interacts, and is constantly occurring decomposition, chemical combination or biopreciapitation.
The investigation carried out to the pollution situation in 532 rivers of China shows that existing 436 rivers are by different degrees of dirt
Dye, account for the 82% of investigation sum.Each great river in the whole nation is in development trend by different degrees of pollution, industry prosperity city
（Town）The pollution of Its Adjacent Waters is especially prominent.
Chinese Lakes reach eutrophic water it is average reached 63.3%, the Lake Water in eutrophy and middle nutritional status
Storehouse area accounts for the 99.5% of the lake and reservoir gross area.Environmental monitoring shows：Big freshwater lake rich nutrition level further aggravates.It is main
It is total phosphorus and total nitrogen to want pollutant.National urban inland lake eutrophication is serious, wherein Jinan Daming Lake and Xuanwu Lake pollution
Heavier, large reservoir water quality is generally preferable, but most reservoirs are also influenceed by pollutions such as total nitrogen, total phosphorus.
Containing color, smelly, taste waste water influence water body outward appearance, industrial product quality, aquatile is had stink waste water by this
Influence, with stink, this not only makes the Quality Down of fish and shellfish, or even is allowed to eat.Organic Pollution microorganism is fast
Speed breeding, makes anoxic in water, causes the anaerobic fermentation of organic matter, decomposites foul gas, pollutes environment, poisons aquatile,
It is the most important aspect of water pollution.Eutrophication pollution causes algal bloom, makes anoxic in water, causes fish dead
Die.The increase of nitrogen compound in water, very big influence is brought to human and livestock health, is gently then poisoned, heavy then carcinogenic.Most apparent performance
It is exactly that water transparency is deteriorated.
A kind of ecological floating island dress of purifying water body pollution of area source of Application No. CN201610152646.0 disclosure of the invention
Put and its application process includes pied geometry, the soft rope fixing device of airbag apparatus and chassis, wherein, the pied geometry is circle
Column structure, the pied geometry is fixed by snap to be connected with the airbag apparatus, is provided with the pied geometry described
Soft rope fixing device, chain, the other end of the chain and the pied geometry being connected are connected with the soft rope fixing device
On other described chains link together, the tie point for connecting all chains on the pied geometry is integrated structure, every two
The individual integrated structure is fixedly connected with connects chain, and the connects chain fixing device is set on the chassis.The life of the invention
State floating island device is complicated, it is high to make trouble, cost.The invention does not refer to the transparency that can significantly improve water body.
A kind of green ecological floating island device of Application No. CN201511009925.3 disclosure of the invention, including chinampa body and
The waterwheel of chinampa body opposite sides, each floating carrier include floating basket made of activated carbon, float basket to top down concave shape
Into plantation chamber, the wall for planting chamber offers some ducts for making plantation chamber be in communication with the outside, and hollow cavity is provided with floating basket, in
Cavity body is connected on the outside of plantation chamber and with plantation chamber, and biological rope is placed with hollow cavity.The activated carbon of the present invention floats
Basket can planting aquatic plants, Adsorption water pollutant, its abundant aperture can inhabit procreation carrier as microorganism, raw
Thing rope can be used as the carrier of microorganism growth, prevent microorganism to be lost in, and promote microorganism to water plant root area
Surface aggregation, waterwheel disturbance water body improve the growing environment of water plant, animal, microorganism to strengthen oxygen in water, carried
The microorganism colonization rate of high whole chinampa body, so as to improve purifying water effect.The ecological floating island apparatus structure of the invention is complicated, makes
Trouble, the used also adsorbable water pollutant of activity, but adsorbance is limited, if periodic replacement cost is higher.Should
Invention does not refer to the transparency that can significantly improve water body.
A kind of multifunctional ecological chinampa of Application No. CN201510965962.5 disclosure of the invention, it is single by several chinampas
Member is fixed by the mutual snapping of connecting plate and formed；The chinampa unit includes regular hexagon floating body frame and is arranged on floating body inframe
Some plantation baskets；The plantation basket is regular hexagon basket, and bottom is grid screen, and each corner angle underhung of basket, which has, to be changed
Property carbon fiber grass；The modified carbon fiber grass passes through through high temperature cabonization, activation, surface modification and again microorganism set for Carbon fibe
Gained；The plantation basket bottom is covered with filling substrate, planting aquatic plants in matrix；Some plantation baskets are built in positive six side
Shape floating body inframe forms integrative-structure.The biological floating bed of the present invention has firm regular hexagon structure, by floating island technique, micro- life
Thing adds technology and technology of biological membrane combines, and can adsorb, absorbs and decompose each pollutant, can be with beautifying city
River course or landscape water, and winter remain to normally play its power.The ecological floating island apparatus structure of the invention is complicated, makes
Trouble, cost are high.The invention does not refer to the transparency that can significantly improve water body.
A kind of ecological floating island with biomembrane reaction function of Application No. CN201410310024.7 disclosure of the invention
And method for treating water, including chinampa floating body framework 1, chinampa floating body frame inner surface be connected with waffle slab 2, pillar hollow-fibre membrane
The second air inlet pipe 6 that first air inlet pipe 10 of component 3 is connected with check valve 7 by joint 5 with top is flexibly connected, and air pump 8 is logical
Cross airway tube 9 to be connected with the second air inlet pipe 6, the outer surface of the second air inlet pipe 6 is flexibly connected with floating body framework or waffle slab, air pump
8 electrically connect with wind power generation plant or device of solar generating, and the hollow-fibre membrane of the column type hollow fiber membrane modular is thin
Water-based microporous barrier.Cost of the present invention is low, using biocoene, improves the utilization rate of oxygen, and operational management is convenient, flexible, is easy to adjust
Whole space configuration, floor space is small, and fixed form is various.It can be placed in the preliminary sedimentation tank of waterworks, be adapted to land used anxiety
Water supply plant.With good processed water quality, synchronous high-efficiency carbon and nitrogen removal, also with good landscape effect.The ecological floating island of the invention
Apparatus structure is complicated, it is high to make trouble, cost.The invention does not refer to the transparency that can significantly improve water body.
Application No. CN201210038635.1 disclosure of the invention a kind of environmental project and water technology, it is desirable to provide
A kind of self-sustaining type landscape restoration ecological floating island device.The device includes by floating bed and plants the water plant between floating bed and form
Chinampa, in addition to photocatalysis ribbon and with solar energy system realize power supply aerator；Photocatalysis ribbon includes sinking to water
Some holes for water body circulation are laid in horizontal load main body below face, its bottom, and the carrier material of loaded optic catalyst is consolidated
Due to surface, surrounding sets downflow weir.Aerator includes aerated conduit and motor.It is floating that the present invention combines photocatalysis technology, ecology
Island technology and heliotechnics advantage remove the organic matter and nitrogen phosphorus in eutrophication water, while by photocatalysis technology by water
Nitrate nitrogen and mineralized nitrogen are nitrogen in body, reduce nitrogen pollutant accumulation and block nitrate transformation be nitrite or
Ammonium, and using the dissolved oxygen in aerator increase water body, strengthen water body self-purification ability, reach and preferably repair eutrophic water
Body.The ecological floating island apparatus structure of the invention is complicated, it is high to make trouble, cost.The invention, which does not refer to, can significantly improve water body
Transparency.
A kind of rapid method for improving water transparency of Application No. CN200410060864.9 disclosure of the invention and plant
Thing carpet, it is related to a kind of purification techniques for improving water transparency, specifically, is related to one kind and is applied to eutrophication water
The minimizing technology and its device of " algal tufa ".This method is some raw aquatic microorganisms using plant carpet filling mixture ratio to improve
Water quality, improve water transparency；Described filler is wood chip, sugar, gypsum, copper chloride；The present apparatus is by ball float (1), foam
Plate (2), weight bag (3), weight (4), filler (5) composition, two pieces of cystosepiments (2) are sandwiched between filler (5), cystosepiment (2)
Top rope hanging anchor has ball float (1), and the following of cystosepiment (2) is sewed with the weight bag (3) equipped with weight (4).Material of the present invention
Wide material sources, make, lay and it is easy to maintenance, can be widely used in the water body by eutrophication pollution.The invention improves
The procedure of transparency and complicated, making trouble, cost are high.The invention, which does not refer to, can significantly improve the transparent of water body
Degree, transparency highest is only to 45cm.
In view of drawbacks described above, the utility model innovatively provides a kind of anchor formula submerged plant ecological floating island device, it
With simple in construction, it is easy to make, and cost is low, and processing water body effect is good, can improve and maintain the higher transparency of water body.
The content of the invention
The purpose of this utility model is to overcome the existing shortcoming and defect of prior art, there is provided one kind can be improved and tieed up
Hold the notable anchor formula submerged plant ecological floating island device effective, making is easy, implementation is simple and cost is cheap of water transparency.
The utility model is mainly used in river, lake and landscape waters, improves and maintains water body higher clarity.
A kind of anchor formula submerged plant ecological floating island device of the present utility model, including floating ring（1）, anchor chain（2）, fixed net
（3）, submerged plant（4）.Floating ring（1）For be made up of the steel pipe or engineering plastics pipe of hollow sealing square, rectangle, circle or
The structure of ellipse, anchor chain（2）For thin tightwire or cord, fixed net（3）For stainless steel or plastic silk screen, submerged plant（4）For
Can be with the submerged plant of rootless growth, fixed net（3）And anchor chain（2）It is fixed on floating ring（1）On, submerged plant（4）It is placed in floating ring
（1）With fixed net（3）In the basketry of composition, by anchor chain（2）It is fixed on the spud pile in water body or bank（5）On.
The floating ring of the anchor formula submerged plant ecological floating island device（1）Hollow steel tube material used is 20 × 20 to 100
The square stainless steel tubes of × 100mm, wall thickness are 0.4 to 1.2mm.
The floating ring of the anchor formula submerged plant ecological floating island device（1）Area is 0.5 to 3m2, preferably 1 to 2m2。
The fixation net of the anchor formula submerged plant ecological floating island device（3）For the fishnet that aperture is 0.5 to 5cm, by solid
Fixed circle or cord are fixed on floating ring（1）On, string bag volume and floating ring that fishing net is formed（1）Area ratio be 0.1 to 1.0m, it is best
For 0.3 to 0.6m.
The fixation net of the anchor formula submerged plant ecological floating island device（3）Retainer plate be stainless steel or engineering plastics, its
Section is preferably round, and area is floating ring（1）The 5 to 30% of sectional area, preferably 10 to 20%.
The anchor chain of the anchor formula submerged plant ecological floating island device（2）Restricted for fishing net, length is 0.5 to 10m, preferably
1 to 2m.
The submerged plant of the anchor formula submerged plant ecological floating island device（4）For hornwort.
The submerged plant of the anchor formula submerged plant ecological floating island device（4）Amount should account for floating ring（1）The 50 of area to
100%。
Anchor formula submerged plant ecological floating island device provided by the utility model, simple in construction, it is easy to make, and cost is low, place
It is good to manage water body effect, can improve and maintain the higher transparency of water body, water transparency is at least 1m, for a long time using can be
More than 2m.Available for river, lake and landscape waters.
Brief description of the drawings
Fig. 1-this anchor formula submerged plant ecological floating island schematic device
Wherein：
1-floating ring；2-anchor chain；3-fix net；4-submerged plant；The spud pile in 5-water body or bank.
Embodiment
The utility model provides a kind of anchor formula submerged plant ecological floating island device, to make the purpose of this utility model, skill
Art scheme and effect are clearer, clear and definite, and the utility model is further described below.It is it should be appreciated that described herein
Specific embodiment only explaining the utility model, be not used to limit the utility model.
Embodiment 1
A kind of anchor formula submerged plant ecological floating island device, floating ring are the square stainless steel tubes of 20 × 20mm by hollow sealing,
Wall thickness is 0.4mm, is welded into the square of sealing, area 0.5m2, anchor chain is fishing net rope, length 0.5m, fixes net
The fishnet for being 0.5cm for aperture, is fixed on floating ring by nylon marline, the string bag volume and the area ratio of floating ring that fishing net is formed
For 0.1m, submerged plant is hornwort, and the anchor chain of ecological floating island is fixed on the spud pile of bank, and ecological floating island will float on water
Face, for submerged plant NATURAL DISTRIBUTION in water, its amount accounts for about the 50% of floating ring area.In summer, transparency will after 20 days for water body
Holding reaches more than 1m.
Embodiment 2
Difference from Example 1 is：Hollow sealing stainless steel tube is 30 × 30mm, wall thickness 0.7mm, floating ring area
For 1.5m2, length of chain cable 1.0m, fixed screen distance is 1cm, and the area ratio of string bag volume and floating ring is 0.3m, submerged plant
Amount accounts for about the 60% of floating ring area.In summer, water body transparency after 15 days will keep reaching more than 1.0m.
Embodiment 3
Difference from Example 1 is：Hollow sealing stainless steel tube is 40 × 40mm, wall thickness 0.7mm, floating ring area
For 2.0m2, length of chain cable 2.0m, fixed screen distance is 3cm, and the area ratio of string bag volume and floating ring is 0.6m, submerged plant
Amount accounts for about the 100% of floating ring product.In summer, water body transparency after 10 days will keep reaching more than 2m.
Embodiment 4
Difference from Example 1 is：Hollow sealing stainless steel tube is 60 × 60mm, wall thickness 1.0mm, floating ring area
For 2.5m2, length of chain cable 4.0m, fixed screen distance is 4cm, and the area ratio of string bag volume and floating ring is 0.8m, submerged plant
Amount accounts for about the 70% of floating ring product.In spring, water body transparency after 20 days will keep reaching more than 1m.
Embodiment 5
Difference from Example 1 is：Hollow sealing stainless steel tube is 100 × 100mm, wall thickness 1.2mm, floating ring face
Product is 3.0m2, length of chain cable 10m, fixed screen distance be 5cm, and the area ratio of string bag volume and floating ring be 1.0m, heavy water plant
Object amount accounts for about the 90% of floating ring product.In spring, water body transparency after 10 days will keep reaching more than 1m.
Embodiment 6
Difference from Example 5 is：Floating ring is rectangle, length of chain cable 6m, and fixed screen distance is 4cm, the string bag
The area of volume and floating ring ratio is 0.7m.In spring, water body transparency after 20 days will keep reaching more than 2m.
Embodiment 7
Difference from Example 1 is：Hollow sealing stainless steel tube is 30 × 30mm, wall thickness 0.7mm, floating ring area
For 1.0m2, length of chain cable 2.0m, fixed screen distance be 1cm, and the area ratio of string bag volume and floating ring is 0.4m, fixation Netcom
Cross retainer plate to be fixed on floating ring, retainer plate is stainless steel, and its section is circle, and area is the 5% of floating ring sectional area, and fishing net is worn
In retainer ring, then it is fixed on floating ring, submerged plant amount accounts for the 100% of floating ring area.In summer, water body passes through 20 days
Transparency will keep reaching more than 2m afterwards.
Embodiment 8
Difference from Example 7 is：Floating ring area is 1.5m2, length of chain cable 3.0m, fixing screen distance is
The area ratio of 0.5cm, string bag volume and floating ring is 0.5m, and retainer plate area is the 10% of floating ring sectional area.In summer, water body warp
Transparency will keep reaching more than 2m after spending 20 days.
Embodiment 9
Difference from Example 7 is：Floating ring area is 1.5m2, length of chain cable 4.0m, fixing screen distance is
The area ratio of 0.5cm, string bag volume and floating ring is 0.6m, and retainer plate is engineering plastics, and retainer plate area is floating ring sectional area
20%.In summer, water body transparency after 20 days will keep reaching more than 2m.
Embodiment 10
Difference from Example 7 is：Floating ring area is 2.0m2, length of chain cable 5.0m, fixing screen distance is
The area ratio of 0.5cm, string bag volume and floating ring is 0.7m, and retainer plate is engineering plastics, and retainer plate area is floating ring sectional area
30%.In summer, water body transparency after 20 days will keep reaching more than 2m.
Embodiment 11
A kind of anchor formula submerged plant ecological floating island device, floating ring are by a diameter of 50mm of hollow sealing circular engineering plastic
Expects pipe, wall thickness 3mm, it is welded into the circular frame of sealing, area 1.5m2, anchor chain is fishing net rope, length 2m, fixes net
The fishnet for being 1cm for aperture, is fixed on floating ring by nylon marline, and the string bag volume and the area ratio of floating ring that fishing net is formed are
0.5m, submerged plant are hornwort, and the anchor chain of ecological floating island is fixed in water on spud pile, and ecological floating island will float on water
Face, for submerged plant NATURAL DISTRIBUTION in water, its amount accounts for about the 80% of floating ring area.In summer, transparency will after 20 days for water body
Reach more than 1.5m.
Embodiment 12
It is with the difference of embodiment 11：Floating ring be by hollow sealing a diameter of 100mm circular engineering plastics pipe,
Wall thickness is 5mm, is welded into the oval frame of sealing, area 3m2, length of chain cable 6m, submerged plant is black algae, and the water that sinks is planted
Object amount accounts for the 100% of floating ring area.In summer, water body transparency after 10 days is up to more than 1.0m.
Claims (10)
- A kind of 1. anchor formula submerged plant ecological floating island device, it is characterised in that：Including floating ring（1）, anchor chain（2）, fixed net（3）、 Submerged plant（4）, floating ring（1）For square, rectangle, circle or the ellipse being made up of the steel pipe or engineering plastics pipe of hollow sealing The structure of shape, anchor chain（2）For thin tightwire or cord, fixed net（3）For stainless steel or plastic silk screen, submerged plant（4）For can be with The submerged plant of rootless growth, fixed net（3）And anchor chain（2）It is fixed on floating ring（1）On, submerged plant（4）It is placed in floating ring（1）With Fixed net（3）In the basketry of composition, by anchor chain（2）It is fixed on the spud pile in water body or bank（5）On.
- A kind of 2. anchor formula submerged plant ecological floating island device according to claim 1, it is characterised in that：Floating ring（1）It is used Hollow steel tube material be the square stainless steel tubes of 20 × 20 to 100 × 100mm, wall thickness is 0.4 to 1.2mm.
- A kind of 3. anchor formula submerged plant ecological floating island device according to claim 1, it is characterised in that：Floating ring（1）Area For 0.5 to 3m2。
- A kind of 4. anchor formula submerged plant ecological floating island device according to claim 3, it is characterised in that：Floating ring（1）Area For 1 to 2m2。
- A kind of 5. anchor formula submerged plant ecological floating island device according to claim 1, it is characterised in that：Fixed net（3）For Aperture is 0.5 to 5cm fishnet, is fixed on floating ring by retainer plate or cord（1）On, string bag volume and floating ring that fishing net is formed （1）Area ratio be 0.1 to 1.0m.
- A kind of 6. anchor formula submerged plant ecological floating island device according to claim 4, it is characterised in that：Fixed net（3）'s Retainer plate is stainless steel or engineering plastics, and its section is preferably round, and area is floating ring（1）The 5 to 30% of sectional area.
- A kind of 7. anchor formula submerged plant ecological floating island device according to claim 1, it is characterised in that：Anchor chain（2）For fishing Net is restricted, and length is 0.5 to 10m.
- A kind of 8. anchor formula submerged plant ecological floating island device according to claim 1, it is characterised in that：Anchor chain（2）For fishing Net is restricted, and length is 1 to 2m.
- A kind of 9. anchor formula submerged plant ecological floating island device according to claim 1, it is characterised in that：Submerged plant（4） For hornwort.
- A kind of 10. anchor formula submerged plant ecological floating island device according to claim 1, it is characterised in that：Submerged plant（4） Amount should account for floating ring（1）The 50 to 100% of area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621329204.0U CN207031083U (en) | 2016-12-02 | 2016-12-02 | A kind of anchor formula submerged plant ecological floating island device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621329204.0U CN207031083U (en) | 2016-12-02 | 2016-12-02 | A kind of anchor formula submerged plant ecological floating island device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207031083U true CN207031083U (en) | 2018-02-23 |
Family
ID=61472087
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621329204.0U Expired - Fee Related CN207031083U (en) | 2016-12-02 | 2016-12-02 | A kind of anchor formula submerged plant ecological floating island device |
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| CN (1) | CN207031083U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110476869A (en) * | 2019-08-20 | 2019-11-22 | 中国热带农业科学院热带生物技术研究所 | A kind of building method of multifunctional water surface landscape |
-
2016
- 2016-12-02 CN CN201621329204.0U patent/CN207031083U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110476869A (en) * | 2019-08-20 | 2019-11-22 | 中国热带农业科学院热带生物技术研究所 | A kind of building method of multifunctional water surface landscape |
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Granted publication date: 20180223 Termination date: 20181202 |