CN113230725A - Rapid pre-concentration device and method for blue algae applied to water body - Google Patents
Rapid pre-concentration device and method for blue algae applied to water body Download PDFInfo
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- CN113230725A CN113230725A CN202110637684.6A CN202110637684A CN113230725A CN 113230725 A CN113230725 A CN 113230725A CN 202110637684 A CN202110637684 A CN 202110637684A CN 113230725 A CN113230725 A CN 113230725A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 102
- 241000195493 Cryptophyta Species 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000004094 preconcentration Methods 0.000 title claims abstract description 25
- 239000007921 spray Substances 0.000 claims description 24
- 239000000243 solution Substances 0.000 claims description 19
- 238000011001 backwashing Methods 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 11
- 239000011550 stock solution Substances 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 241000192700 Cyanobacteria Species 0.000 claims description 4
- 239000012141 concentrate Substances 0.000 claims 3
- 239000012466 permeate Substances 0.000 claims 1
- 239000013043 chemical agent Substances 0.000 abstract description 3
- 238000000746 purification Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 7
- 238000005345 coagulation Methods 0.000 description 5
- 230000015271 coagulation Effects 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005188 flotation Methods 0.000 description 2
- 230000000050 nutritive effect Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000003053 toxin Substances 0.000 description 1
- 231100000765 toxin Toxicity 0.000 description 1
- 108700012359 toxins Proteins 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/31—Self-supporting filtering elements
- B01D29/35—Self-supporting filtering elements arranged for outward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/52—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
- B01D29/54—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection arranged concentrically or coaxially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
- B01D29/68—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The invention discloses a quick pre-concentration device and a quick pre-concentration method for blue algae applied to a water body, and relates to the technical field of ecological water quality purification. The design is convenient to operate, can carry out preconcentration on the blue algae in the water body in a large-scale and high-efficiency manner, and does not need to add any chemical agent.
Description
Technical Field
The invention relates to the technical field of ecological water quality purification, in particular to a device and a method for quickly pre-concentrating blue algae applied to a water body.
Background
With the rapid development of social economy, the eutrophication of water bodies is increasingly serious, so that a large amount of water bodies frequently burst blue algae blooms, such as Taihu lake, Dian lake, nest lake and the like, the water ecological environment is damaged, the drinking water safety of the masses is threatened, the fundamental measures for solving the algae blooms are to control the discharge of pollution sources and construct a benign water ecological environment to realize the self ecological restoration of the water bodies, but the method has slow effect and is difficult to achieve at once, however, the eutrophicated water bodies can frequently burst large-scale blue algae blooms, and therefore, after the blue algae bursts, efficient blue algae emergency treatment measures are needed to reduce or avoid the serious influence on the water ecological environment and the drinking safety.
At present, in a plurality of blue algae bloom emergency treatment technologies, the blue algae fishing out from a water body by a coagulation air flotation or coagulation sedimentation method is widely considered as a most direct and effective blue algae emergency prevention and control measure; also is a blue algae salvaging method widely adopted by algae-water separation stations at home and abroad, the method can not only clear away the blue algae in the water body, meanwhile, a great amount of secondary pollution of N, P and other nutritive salts, algal toxins and the like to the water body can be brought away, so that, dozens of algae-laden water separation stations with coagulation air flotation/sedimentation process are built around Taihu lake, Dian lake, nested lake and the like, however, the blue algae cells are greatly influenced by water power, climate, nutritive salt and the like in the water body and are easy to gather in a downwind bay, however, the change of the wind direction has great influence on the concentration of the cyanobacteria cells gathered on the surface in the water body, which brings great challenges to the treatment process of the algae-laden water separation station, especially when the concentration of the cyanobacteria cells is low, not only can cause the waste of a large amount of coagulation agents and increase the treatment cost, but also can cause the remarkable increase of coagulation residual amount in the effluent and cause secondary pollution to water pollution.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a device and a method for quickly pre-concentrating blue algae applied to a water body, and solves the problems in the background.
In order to achieve the purpose, the invention is realized by the following technical scheme:
in a first aspect, the invention provides a blue algae rapid preconcentration device for water application, which comprises an outer box body, wherein a water inlet pipe is arranged at the lower end of one side surface of the outer box body, one end of the water inlet pipe is connected with a first threaded parallel pipe, a plurality of micropore concentration columns are arranged at the upper end of the outer surface of the first threaded parallel pipe, the ends of the micropore concentration columns are connected with a second threaded parallel pipe, one end of the second threaded parallel pipe is connected with a concentrated solution outlet pipe in a penetrating manner, a pressure gauge is arranged above the outer surface of the concentrated solution outlet pipe, a flow valve is arranged at one side of the pressure gauge above the outer surface of the concentrated solution outlet pipe, a backwash water inlet pipe is arranged at the lower end of one side surface of the outer box body, one end of the backwash water inlet pipe is connected with a parallel pipe, backwash high-pressure spray pipes are symmetrically arranged at the upper ends of the outer surface of the parallel pipe, and a plurality of jet spray heads are arranged at one side of the outer surface of the backwash high-pressure spray pipes, and a dilute liquid outlet pipe is arranged at the lower part of the other side surface of the outer box body.
As a further technical scheme of the invention, the water inlet pipe is in through connection with the first threaded parallel pipe.
As a further technical scheme of the invention, the micropore concentration column is communicated with the first thread parallel pipe and the second thread parallel pipe, and the outer surface of the micropore concentration column is provided with meshes.
As a further technical scheme, the upper end and the lower end of the micropore concentration column are both provided with threaded connectors, and threaded holes are formed in the outer surfaces of the first threaded parallel pipe and the second threaded parallel pipe at positions corresponding to the threaded connectors.
As a further technical scheme of the invention, the backwashing water inlet pipe is communicated with the parallel pipe, and the other ends of the backwashing water inlet pipe and the water inlet pipe are connected with the water pump through pipelines.
As a further technical scheme of the invention, the backwashing high-pressure spray pipes are communicated with the parallel pipes, and the backwashing high-pressure spray pipes are positioned on the outer surface of the backwashing high-pressure spray pipes and are linearly arranged.
As a further technical scheme of the invention, the dilute liquid outlet pipe is communicated with the outer box body.
In a second aspect, the invention also provides a rapid pre-concentration method of blue algae applied to a water body, which comprises the following steps:
s1, sucking raw water containing blue algae in lakes, reservoirs, rivers, water delivery channels and the like into the first thread parallel pipe through a water pump;
s2, allowing most of water in the stock solution containing blue algae and single algae cells or aggregates with small particle size to penetrate through the microporous concentration columns, collecting the water in the outer box body, and discharging the water through a dilute liquid outlet pipe;
s3, intercepting most of blue algae cell aggregates in an aggregated form in a blue algae stock solution through a micropore concentration column, and discharging the blue algae cell aggregates with the remaining concentrated solution through a concentrated solution outlet pipe, thereby realizing the preconcentration of the blue algae in the water body;
s4, jetting backwash clear water to the outer surface of the microporous concentration column at multiple angles through a plurality of backwash high-pressure spray pipes, backwashing residual algae cells and other particulate matters at the mesh holes of the microporous concentration column, recovering the blocked mesh holes, and discharging the backwash water from the dilute liquid outlet pipe.
Advantageous effects
The invention provides a rapid pre-concentration device and method for blue algae applied to a water body. Compared with the prior art, the method has the following beneficial effects:
1. the device has a simple structure, is convenient to operate, can carry out large-scale and high-efficiency pre-concentration on the blue algae in the water body, does not need to add any chemical agent, and realizes the pure physical concentration of the blue algae in the water body.
2. The device and the method can stabilize the feed concentration of a subsequent process, solve the technical bottleneck that the algae-laden water separation is greatly challenged due to the difficulty in coping with the large concentration change of blue algae cells in the water, and can obviously reduce the treatment capacity of the subsequent treatment process, thereby reducing the treatment cost.
Drawings
FIG. 1 is a sectional view of a blue algae rapid preconcentration device applied to a water body;
fig. 2 is a schematic structural diagram of a blue algae rapid preconcentration device applied to a water body.
In the figure: 1. an outer case; 2. a first threaded parallel pipe; 3. a microporous concentration column; 4. a second threaded parallel pipe; 5. a pressure gauge; 6. a flow valve; 7. a concentrated solution outlet pipe; 8. a backwash water inlet pipe; 9. connecting pipes in parallel; 10. backwashing the high-pressure spray pipe; 11. a water inlet pipe; 12. a dilute liquid outlet pipe; 13. and a jet flow spray header.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a blue algae fast preconcentration device and method for water application, the technical scheme is as follows:
a blue algae rapid preconcentration device applied to a water body comprises an outer box body 1, a water inlet pipe 11 is arranged at the lower end of one side face of the outer box body 1, one end of the water inlet pipe 11 is connected with a first thread parallel pipe 2, a plurality of micropore concentration columns 3 are arranged at the upper end of the outer surface of the first thread parallel pipe 2, the ends of the micropore concentration columns 3 are connected with a second thread parallel pipe 4, one end of the second thread parallel pipe 4 is connected with a concentrated solution outlet pipe 7 in a penetrating way, a pressure gauge 5 is arranged above the outer surface of the concentrated solution outlet pipe 7, a flow valve 6 is arranged at one side, positioned on the pressure gauge 5, above the outer surface of the concentrated solution outlet pipe 7, a backwash water inlet pipe 8 is arranged at the lower end of one side face of the outer box body 1, one end of the backwash water inlet pipe 8 is connected with a parallel pipe 9, backwash high-pressure spray pipes 10 are symmetrically arranged at the upper end of the outer surface of the parallel pipe 9, and a plurality of jet spray heads 13 are arranged at one side of the outer surface of the backwash high-pressure spray pipes 10, the lower part of the other side surface of the outer box body 1 is provided with a dilute liquid outlet pipe 12.
The water inlet pipe 11 and the first thread parallel pipe 2 are in through connection, and when the water-saving device is used, a water body needing concentration can be pumped into the water-saving device through a water pump.
Concentrated post of micropore 3 is through connection with first screw thread parallel pipe 2 and second screw thread parallel pipe 4, and the mesh has been seted up to the surface of concentrated post of micropore 3, when using, can be according to the alga particle diameter of the quality of water of difference, changes the concentrated post of micropore 3 of different meshes, and then conveniently carries out preconcentration to different alga.
The upper and lower both ends of the concentrated post of micropore 3 all are provided with threaded connection head, and the surface of first screw thread parallel connection pipe 2 and second screw thread parallel connection pipe 4 is located and all sets up threaded hole with the corresponding department of threaded connection head, when using, through threaded connection head and first screw thread parallel connection pipe 2 and second screw thread parallel connection pipe 4 threaded connection, and then installs the concentrated post of micropore 3 fast.
The backwash water inlet pipe 8 is through connection with the parallel pipe 9, and the backwash water inlet pipe 8 and the other end of inlet tube 11 all are connected with the water pump through the pipeline, when using, wash the concentrated post of micropore 3 department through the efflux shower head 13, avoid the concentrated post of micropore 3 department to block up.
The backwashing high-pressure spray pipe 10 is communicated with the parallel pipe 9, and the backwashing high-pressure spray pipe 13 is positioned on the outer surface of the backwashing high-pressure spray pipe 10 and is linearly arranged, so that the spray washing of the micropore concentration column 3 is more uniform when the device is used.
The dilute liquid outlet pipe 12 is communicated with the outer box body 1, and when the device is used, pre-concentrated water and water for cleaning the microporous concentration column 3 can be quickly discharged.
In addition, the embodiment provides a method for rapidly pre-concentrating blue algae in a water body, which specifically comprises the following steps:
s1, first, mixing the lakeThe stock solution containing blue algae in water bodies such as a pool, a reservoir, a river, an input channel and the like is pumped into the device, and the pumping flow is 1000 m3The physical pre-concentration of the blue algae is carried out through a micropore concentration column 3 (with the mesh size of 50 mu m) without adding any chemical agent, and the water yield of the concentrated solution is enabled to be 200 m by adjusting a flow valve on a concentrated solution outlet pipe 73The reading of a pressure gauge 5 is 0.08 MPa, most of water and a small part of single algae cells and small aggregates in the blue algae stock solution penetrate through a filter screen of the micropore concentration column 3, the filtered dilute solution is collected into the outer box 1 and is discharged through a water outlet pipe 12, and the flow rate of the dilute solution is 800 m3H; most of the blue algae of the aggregate are intercepted by the meshes of the micropore concentration column 3, and enter the subsequent blue algae water separation treatment of the blue algae along with the discharge of the concentrated solution from the concentrated solution outlet pipe, and the concentration of the water containing the blue algae by 5 times can be quickly realized by the methods;
s2, when the reading of the pressure gauge 5 reaches 0.1 MPa, automatically opening the backwashing high-pressure spray pipe 10, spraying backwashing water around the microporous concentration column 3 by using a plurality of jet nozzles 13, so that particles such as algae cells and the like intercepted on the meshes are washed away, recovering the concentration capability of the microporous concentration column 3, and when the reading of the pressure gauge 5 is reduced to 0.08 MPa, automatically closing backwashing water to finish the automatic backwashing of the microporous concentration column 3;
s3, setting a concentration proportion according to the concentration of algae cells in the water body containing the blue algae and the concentration requirement of a subsequent process on the concentrated algae cells, and then adjusting the water outlet flow of the concentrated solution and matching with a pressure gauge to realize efficient pre-concentration of the water body containing the blue algae.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a quick preconcentration device of blue alga that water was used, includes outer box (1), its characterized in that, a side lower extreme of outer box (1) is provided with inlet tube (11), and the one end of inlet tube (11) is connected with first screw thread parallel pipe (2), a plurality of micropore concentration posts (3) are installed to the surface upper end of first screw thread parallel pipe (2), and the end of micropore concentration post (3) is connected with second screw thread parallel pipe (4), the one end through connection of second screw thread parallel pipe (4) has concentrate outlet pipe (7), and installs manometer (5) above the surface of concentrate outlet pipe (7), flow valve (6) are installed to the surface top that lies in one side of manometer (5) of concentrate outlet pipe (7), backwash water inlet tube (8) are installed to a side lower extreme of outer box (1), and one end of the backwash water inlet pipe (8) is connected with a parallel pipe (9), backwash high-pressure spray pipes (10) are symmetrically arranged at the upper ends of the outer surfaces of the parallel pipes (9), a plurality of jet spray heads (13) are arranged on one side of the outer surface of the backwash high-pressure spray pipes (10), and a dilute liquid outlet pipe (12) is arranged at the lower part of the other side surface of the outer box body (1).
2. The rapid preconcentration device of blue-green algae for water applications according to claim 1, wherein the water inlet pipe (11) is in through connection with the first threaded parallel pipe (2).
3. The quick pre-concentration device of blue algae for water body application according to claim 1, wherein the micro-porous concentration column (3) is in through connection with the first threaded parallel pipe (2) and the second threaded parallel pipe (4), and the outer surface of the micro-porous concentration column (3) is provided with meshes.
4. The quick preconcentration device of blue-green algae for water bodies according to claim 1, wherein the upper end and the lower end of the microporous concentration column (3) are respectively provided with a threaded connector, and the outer surfaces of the first threaded parallel pipe (2) and the second threaded parallel pipe (4) are respectively provided with a threaded hole at the position corresponding to the threaded connectors.
5. The fast pre-concentration device of blue algae for water body application according to claim 1, wherein the backwash water inlet pipe (8) is connected with the parallel pipe (9) in a through way, and the other ends of the backwash water inlet pipe (8) and the water inlet pipe (11) are connected with a water pump through pipelines.
6. The rapid pre-concentration device for blue algae applied to water bodies according to claim 1, wherein the backwashing high-pressure spray pipes (10) are communicated with the parallel pipes (9), and the backwashing high-pressure spray pipes (13) are positioned on the outer surfaces of the backwashing high-pressure spray pipes (10) and are linearly arranged.
7. The fast pre-concentration device of blue algae for water body application according to claim 1, wherein the dilute liquid outlet pipe (12) is in through connection with the outer box body (1).
8. The method for rapidly pre-concentrating the blue algae applied to the water body according to any one of claims 1 to 7, which is characterized by comprising the following steps:
s1, sucking raw water containing blue algae in lakes, reservoirs, rivers, water delivery channels and the like into the first thread parallel pipe (2) through a water pump;
s2, allowing most of water in the stock solution containing blue algae to permeate the microporous concentration columns (3) through the microporous concentration columns (3) and single algae cells or aggregates with small particle sizes to be collected in the outer box body (1) and discharged through the dilute liquid outlet pipe (12);
s3, intercepting most of blue algae cell aggregates in an aggregated form in a blue algae stock solution through a micropore concentration column (3), and discharging the blue algae cell aggregates with the remaining concentrated solution through a concentrated solution outlet pipe (7), so that the pre-concentration of the blue algae in the water body is realized;
s4, jetting backwash clear water to the outer surface of the micropore concentration column (3) at multiple angles through a plurality of backwash high-pressure spray pipes (10), backwashing the residual algae cells and other particles at the mesh holes of the micropore concentration column (3), recovering the blocked mesh holes, and discharging the backwash water from the dilute liquid outlet pipe (12).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110637684.6A CN113230725B (en) | 2021-06-08 | 2021-06-08 | Rapid pre-concentration device and method for blue algae applied to water body |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110637684.6A CN113230725B (en) | 2021-06-08 | 2021-06-08 | Rapid pre-concentration device and method for blue algae applied to water body |
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| CN113230725A true CN113230725A (en) | 2021-08-10 |
| CN113230725B CN113230725B (en) | 2022-02-22 |
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|---|---|---|---|---|
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2021
- 2021-06-08 CN CN202110637684.6A patent/CN113230725B/en active Active
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| FR2260371A1 (en) * | 1974-02-13 | 1975-09-05 | Inst Francais Du Petrole | |
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| CN113230725B (en) | 2022-02-22 |
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