CN105764588A - Floating filter system for in- situ algae removal - Google Patents
Floating filter system for in- situ algae removal Download PDFInfo
- Publication number
- CN105764588A CN105764588A CN201380080960.7A CN201380080960A CN105764588A CN 105764588 A CN105764588 A CN 105764588A CN 201380080960 A CN201380080960 A CN 201380080960A CN 105764588 A CN105764588 A CN 105764588A
- Authority
- CN
- China
- Prior art keywords
- floating
- filter system
- system described
- floating filter
- collecting tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007667 floating Methods 0.000 title claims abstract description 42
- 241000195493 Cryptophyta Species 0.000 title claims abstract description 15
- 238000011065 in-situ storage Methods 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 241000192700 Cyanobacteria Species 0.000 claims description 35
- 238000000034 method Methods 0.000 claims description 15
- 238000001914 filtration Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 6
- 238000009295 crossflow filtration Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000003643 water by type Substances 0.000 claims description 2
- 239000012535 impurity Substances 0.000 claims 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000000706 filtrate Substances 0.000 claims 1
- 230000005484 gravity Effects 0.000 claims 1
- 230000014759 maintenance of location Effects 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 239000012141 concentrate Substances 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 235000016709 nutrition Nutrition 0.000 description 2
- 230000035764 nutrition Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 241001464430 Cyanobacterium Species 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 150000007514 bases Chemical class 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/05—Floating filters
Landscapes
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cleaning Or Clearing Of The Surface Of Open Water (AREA)
Abstract
A floating filter system illustrated in Fig 1 comprising, as its major components, floats (1), filter medium (2), weight bars (4) and collection slot (3), funnel disposed when towed in a water body, functioning as a crossflow filter that enables to concentrate and remove algae in- situ an open and large water body efficiently.
Description
Technical field
Technical field: the present invention relates to a kind of floating filter system, especially a kind of tangential flow filtration system for salvaging wide algae in water area.
Background technology:
Algae formed and in maintaining existing Atmospheric composition it is critical that.It in biological food is provided also it is critical that.But, also it is harmful when it breaks out, and water body can be poisoned.The basic reason of alga eruption is the surplus of water body Middle nutrition material.The algae lived is the cleaner of water body Middle nutrition material in fact.But when it is dead and decomposes, nutrient substance is returned in water body again by it.In most circumstances, blue algae bloom once, will last till that temperature drops to of a sufficiently low.Directly cyanophyceae is salvaged from water body walk to be probably to solve the blue algae bloom problem that is harmful to the most directly, the most rapid means.
The cyanophyceae fishing operation being currently in use in China Taihu Lake and Dian Chi at present is to be siphoned away by the algae-containing water body on about 50 millimeters of water body top layer, then passes through flocculation-sedimentation-filtration and reprocesses the algae-containing water siphoned away.Such salvaging activity reality just can only carry out the bank forming the leeward of high density wawter bloom, bay or the water surface comparatively tranquil.
Other cyanophyceae isolation technics also has directly filtration, as described in U.S. Patent number USPNo.4255261, Dodd etc. 1981, USPNo.8496120, Willuweit etc. 2013.
The premise that above-mentioned technology uses is all of pending must all to pump into process equipment or facility containing algae sewage.Cyanophyceae is very tiny cyanobacterium, even if its weight concentration in water body is all very low during great outburst.So what even if the water yield only extracting water surface 50 millimeters was also difficult to afford.
Summary of the invention:
Goal of the invention:
It is an object of the invention to provide a kind of can but be not limited in huge water body directly to concentrate the filtration system of cyanophyceae, rather than concentrate again after extracting algae water out water body.
It is a further object to provide a kind of can but be not limited to collect and remove the device of cyanophyceae in water body.
It is a further object to provide the application process of a kind of slipstream (crossflow) filter, glue a stifled difficult problem as the such organic matter of cyanophyceae at filter membrane surface for overcoming.
It is a further object to provide a kind of device and method to remove the cyanophyceae of substantial amounts of low concentration in great water body.
It is a further object to provide a kind of device and method, gather in the crops highly purified fresh cyanophyceae by being separated with cyanophyceae by thicker pollutant in water body simultaneously.
It is a further object to provide a kind of device and method, in removing water body in the process of a large amount of cyanophyceaes, reduce to greatest extent other biological and living environment interference in water body.
It is a further object to provide the device of a kind of high-efficiency low energy consumption and method to remove the cyanophyceae of low concentration in great water body.
It is a further object to provide a kind of pure physical unit and method, without any chemical reagent when, concentrate and remove substantial amounts of cyanophyceae in water body.
It is a further object to provide a kind of device and method can remove substantial amounts of cyanophyceae while stoping cyanophyceae to enter protected water body.
Technical scheme:
As shown in Figure 1 in the basic embodiment of the present invention, floating filter system includes two float chains (1), along sealing-in and fall in the filter screen (2) below described float chain in one strip, one collecting tank being positioned in the middle of two float chains and filter screen and be tightly connected with them in its front end or collection device (3), a succession of weighted rod (4) hanging on edge under filter screen (2), it is arranged at the tether circle (5) of each float (1) junction and weighted rod (4) junction, one under water side hang tether circle tow floating drum (7), and connect aforementioned circle (5) and the tow strap (6) of floating drum (7) lower section tether circle, form a funnel in the plane.Advantageous alternative is that described float (1) is made long tubular airbag by macromolecular material, growth cylinder can be stretched after inflating and straight and upright.Advantageous alternative is that described filter screen (2) has smooth surface, high intensity is non-resilient or low elasticity, will not be biodegradable, permeable but can retain major part cyanophyceae cluster.Advantageous alternative is that the back side on the edge up and down at filter screen is seamed into hose-like with weather-proof Web materials, in order to insert long cylinder airbag (1) and weighted rod (4).Described collecting tank is optional to be made of fiberglass, is equipped with electric trowelling device.The proportion of described tow strap (6) equals or close to 1.
In second technical scheme being derived by first technical scheme shown in Fig. 2, increase a thicker floating filter system in the front of aforementioned basic scheme.Filter screen therein (8) is thicker, it is possible to allows water and cyanophyceae to pass freely through, but can filter and walk the floating thing that major part is thicker.Former and later two floating filter systems are lain in circle (5) connection by tow strap (6) and form planar distribution shown in Fig. 2.
In the be derived by the first string the 3rd shown in Fig. 6 technical scheme, the float quantity on collection device both sides and the length of filter screen are not etc..
In all of technical scheme, the diameter of float (1) and the weight of weighted rod (4) all should appropriately be selected, so that filter screen (2) and (8) are born enough tension force all the time up and down and are held substantially flat in water body.
Ideal situation is to be separately fixed at the entrance of collecting tank and the bottom of afterbody with two airbags (9) and (10), and user can by inflating or the exit draft and angle that freely regulate collecting tank entrance and afterbody.Collecting tank is equipped with scrapper conveyor (11) be easy to the cyanophyceae mud of porch concentration is scraped the afterbody to collecting tank.
Accompanying drawing explanation:
Fig. 1 is floating filter system concept floor map.
Fig. 2 is floating filter system set floor map.
Fig. 3 is the lateral cross schematic diagram of collecting tank.
Fig. 4 is the lateral cross schematic diagram of the first basic compound mode of the present invention.
Fig. 5 is the lateral cross schematic diagram of the second collective combinations mode of the present invention.
Fig. 6 is the floor map of the third compound mode of the present invention.
Detailed description of the invention:
In the first embodiment of the present invention shown in Fig. 1 and Fig. 4, when floating filter system is dragged, when tow strap (6) is nervous, filter screen (2) forward upward tilts (normal sensing front upper place), and collecting tank both sides filter screen is towards center opposite tilt in the plane.When filtration system moves forward, most water can pass through filter screen, and most cyanophyceae cluster will be retained and forms cyanophyceae underflow in the forward position of filter screen.Owing to filter screen is towards being acute angle with direction of advance, retained cyanophyceae underflow will be formed towards the slipstream being positioned at funnel bottom collecting tank (3) along screen surface.Favourable way is to make filtering net surface with the advance angular separation angle less than both sides filter screen in plane Yu direction of advance, so contributes to preventing or reduce lower to escaping from filter screen of cyanophyceae underflow.When water condition allows, filter screen length can up to hundred meters, and vertical height is likely at one meter or less than one meter.Generally, floating filter system pace is slow so that the pressure reduction on filter screen two sides is only small, so that cyanophyceae etc. minimize in the viscous stifled effect of screen surface.
In the second embodiment of the present invention shown in Fig. 2 and Fig. 5, when combining floating filter system and being dragged forward in wide waters, afloat thicker foreign material obtain being blocked by the filter screen (8) in front, and water and cyanophyceae reach the filter screen (2) of back by easily passing.Major part cyanophyceae by blocked by the filter screen (2) of back obtain and formed high concentration algae slurry tangentially flow to collecting tank (3).The cyanophyceae so collected is purer, and follow-up useful utilization is more worth.
In the third embodiment of the present invention shown in Fig. 6, the two ends of floating filter system are fixed on two sides (words of permission) or described floating drum (7), form angle with wind direction or water (flow) direction.Filtering net surface (normal) should the upwards oblique direction moved in the face of cyanophyceae.Collecting tank hopper base in other words is regardless of whether at center, all should be positioned at the downstream of cyanophyceae moving direction.Compared with conventional oil fence, floating filter system not only stops or decreases cyanophyceae entrance downstream or leeward water body, it is also possible to pass more readily the cyanophyceae removing these gatherings at the blue algae slurry of collecting tank collection concentration.
In all above-mentioned embodiments, the concentration that gained algae is starched is the angle of filter screen and current, dragging speed, wind direction and wind speed, the comprehensive effect of the factors such as the draft of collecting tank.Energetical recommendation drags floating filter system windward.
Claims (16)
1. a floating filter system, it is characterised in that it is by two float chains, a weighted rod chain, a strip (band) drainage screen, a collecting tank, floating drum composition (Fig. 1) just hanging with fake under water.
2. floating filter system described in claim 1, vertically both sides, the wherein said filter screen back side sew or are fixed with two screen cloths, at the upper edge of filter screen bar and the lower pipeline soft along formation, can penetrate above-mentioned float chain and weighted rod chain respectively.
3. floating filter system described in claim 1, wherein said filter medium is the thin layer filter screen that surface is smooth, permeable but can retain (stop) most cyanophyceae bacterioflora and thicker material.
4. floating filter system described in claim 1 and 2, wherein said thicker dead end (dead-end) filter medium is to be fully able to by water and cyanophyceae bacterioflora, simply retains thicker impurity, and described weighted rod chain can be replaced by counterweight rope.
5. floating filter system described in claim 1, when it is dragged in water or in water, by along the force action of the buoyancy of float chain and the lower action of gravity along weighted rod chain, whole piece filter screen remains under uniform tension force.
6. floating filter system described in claim 1, is wherein equipped with fake in the junction of each float and weighted rod and the front of termination.
7. floating filter system described in claim 1, secures two airbags respectively before and after the bottom part down of collecting tank therein.
8. floating filter system described in claim 1, is arranged above screeding device at the bottom of collecting tank therein.
9. floating filter system described in claim 1, filter screen therein has a breach on top, float middle-of-chain position, both sides, and it just encapsulates mutually with the collecting tank forward position described in claim 1,7 or 8.
10. floating filter system according to claim 1,5 and 9, the method of its application is to connect the fake described in claim 6 and the fake of floating drum (7) lower section with tow strap, make filter screen upwards centroclinal dip described in claim 2 and 3, the funnel that it is the end with collecting tank that filtration system is formed in the plane when described floating drum drags forward.
11. floating filter system described in claim 1 and 10, its application is tangential flow filtration technology, and when system moves forward in water body, filter screen retention forms the underflow stream towards collecting tank flowing.
12. floating filter system described in claim 1,10 and 11, its using method is to tow in water body, rather than by being pumped into water or filtrate to form the pressure difference on filter screen both sides.
13. a floating filter system, wherein claim 4 is positioned at claim 3,5 and the front of filtration system described in 9 and is connected with the latter by the fake described in claim 6 with parallel rope with the filtration system described in 5, make such to be combined in when dragging forward, described filter screen, according to claim 2 and 3 upwards centroclinal dip, the filtration system plane at rear forms the funnel-form being the end with collecting tank.
14. floating filter system described in claim 13, what apply when this combined system drags in water body and moves ahead is the compound action of front dead end (dead-end) filtration system described in claim 4 and the rear tangential flow filtration system described in claim 11, and the floating impurity that thus major part is thicker is separated with blue algae slurry.
15. floating filter system and application process thereof according to claim 10; its application process derived is the upstream or windward being fixed on by floating drum and be intended to protection water body; or the fake described in claim 6 is directly lain on the bank by (in non-navigation water body) by rope
Thus cyanophyceae is not only blocked outside protected water body, and is collected and removes later.
16. floating filter system and application process thereof according to claim 11, its derivative application process is curved about the fixing a series of floating drum of a waters (such as intake) and floating filter system, therefore cyanophyceae is not only blocked, and can be collected by collecting tank.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SG201308091-6 | 2013-10-31 | ||
| SG2013080916A SG2013080916A (en) | 2013-10-31 | 2013-10-31 | Floating filter system for in-situ algae removal |
| PCT/SG2013/000505 WO2015065286A1 (en) | 2013-10-31 | 2013-11-27 | Floating filter system for in- situ algae removal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105764588A true CN105764588A (en) | 2016-07-13 |
| CN105764588B CN105764588B (en) | 2017-07-28 |
Family
ID=53004723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380080960.7A Expired - Fee Related CN105764588B (en) | 2013-10-31 | 2013-11-27 | The floating filter system of blue-green algae is directly filtered out in water body |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN105764588B (en) |
| SG (1) | SG2013080916A (en) |
| WO (1) | WO2015065286A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107012847A (en) * | 2017-04-27 | 2017-08-04 | 昆明理工大学 | A kind of algae processing unit and method |
| CN111450617A (en) * | 2020-04-14 | 2020-07-28 | 马文 | Filter equipment for river sewage treatment |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111296373A (en) * | 2020-02-21 | 2020-06-19 | 琼台师范学院 | Collector for plankton |
| CN116747591B (en) * | 2023-08-22 | 2023-10-24 | 山西林海腐植酸科技有限公司 | Humic acid production filter equipment |
| CN116973312B (en) * | 2023-09-25 | 2023-12-12 | 湖北金浪勘察设计有限公司 | River ecology monitoring device |
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| WO2003024565A1 (en) * | 2001-09-19 | 2003-03-27 | Brueggert Detlef | Component for a pond filtering system |
| CN201161948Y (en) * | 2008-02-22 | 2008-12-10 | 合肥市东方美捷分子材料技术有限公司 | Coagulate algae purification platform |
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| JP2580529B2 (en) * | 1994-03-16 | 1997-02-12 | 建設省土木研究所長 | Pumice filter |
| DE10043595B4 (en) * | 2000-09-01 | 2004-07-08 | Söll Gmbh | water filters |
| DE102008060723B4 (en) * | 2008-04-18 | 2021-01-21 | Ife Innovative Forschungs- Und Entwicklungs Gmbh & Co. Kg | Filter unit for cleaning fluids, filter systems and their uses |
| DE202010006734U1 (en) * | 2010-05-12 | 2010-08-19 | Söll Gmbh | Filter unit, filter device and filter system |
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2013
- 2013-10-31 SG SG2013080916A patent/SG2013080916A/en unknown
- 2013-11-27 CN CN201380080960.7A patent/CN105764588B/en not_active Expired - Fee Related
- 2013-11-27 WO PCT/SG2013/000505 patent/WO2015065286A1/en active Application Filing
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003024565A1 (en) * | 2001-09-19 | 2003-03-27 | Brueggert Detlef | Component for a pond filtering system |
| CN201161948Y (en) * | 2008-02-22 | 2008-12-10 | 合肥市东方美捷分子材料技术有限公司 | Coagulate algae purification platform |
| CN101875393A (en) * | 2008-08-08 | 2010-11-03 | 青岛市城阳区海洋与渔业局 | Double-wing attacking and hooking boat net |
| CN201339180Y (en) * | 2009-01-05 | 2009-11-04 | 张凌玲 | Blue algae collecting and fishing device |
| CN201390368Y (en) * | 2009-03-26 | 2010-01-27 | 河海大学 | Novel multifunctional cyanobacteria fishing boat |
| CN101671060A (en) * | 2009-09-24 | 2010-03-17 | 同济大学 | Processing device of single air floatation alga removing ship for large-area alga eruption of natural water body and processing method |
| CN102464092A (en) * | 2010-11-09 | 2012-05-23 | 海安县商业学校 | Lake surface cleaning boat |
| CN203096703U (en) * | 2013-02-17 | 2013-07-31 | 上海城投原水有限公司青草沙水库管理分公司 | Water source area lake and reservoir alga filter net |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107012847A (en) * | 2017-04-27 | 2017-08-04 | 昆明理工大学 | A kind of algae processing unit and method |
| CN111450617A (en) * | 2020-04-14 | 2020-07-28 | 马文 | Filter equipment for river sewage treatment |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015065286A1 (en) | 2015-05-07 |
| SG2013080916A (en) | 2015-05-28 |
| CN105764588B (en) | 2017-07-28 |
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