• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a device for light exposure of an algal solution, for a photo-bioreactor, said exposure device comprising a planar support (6, 61, 62) comprising at least one opening (610, 620) adapted to receive at least one sleeve (5), the sleeve (5) being of flexible, liquid-tight and translucent material, and comprising an open end adapted to receive a sleeve (10), the sleeve being translucent and arranged to closing and fixing said sleeve to the support, characterized in that the exposure device has positive buoyancy in the water. The subject of the invention is also a photobioreactor equipped with such a device and a method for starting such a photobioreactor.
    公开号:FR3056600A1
    申请号:FR1659114
    申请日:2016-09-27
    公开日:2018-03-30
    发明作者:Frederic Duong
    申请人:Suez Groupe SAS；
    IPC主号:
    专利说明:

    056 600
    59114 ® FRENCH REPUBLIC
    NATIONAL INSTITUTE OF INDUSTRIAL PROPERTY © Publication number:
    (to be used only for reproduction orders) (© National registration number
    COURBEVOIE © IntCI 8 : C 12 M 1/00 (2017.01)
    PATENT INVENTION APPLICATION
    A1
    ©) Date of filing: 27.09.16. (© Applicant (s): SUEZ GROUPE Joint-stock company (© Priority: simplified - FR. @ Inventor (s): DUONG FREDERIC. ©) Date of public availability of the request: 30.03.18 Bulletin 18/13. (© List of documents cited in the report of preliminary research: Refer to end of present booklet (© References to other national documents (73) Holder (s): SUEZ GROUPE Joint stock company related: folded. ©) Extension request (s): © Agent (s): CABINET ARMENGAUD AINE.
    DEVICE FOR EXPOSING THE LIGHT OF AN ALGAL SOLUTION, PHOTOBIOREACTOR AND ASSOCIATED STARTING METHOD.
    FR 3 056 600 - A1 (3 /) The invention relates to a device for exposure to the light of an algal solution, for a photo-bioreactor, this exposure device comprising a flat support (6, 61, 62) comprising at least one opening (610, 620) capable of accommodating at least one sleeve (5), the sleeve (5) being of flexible material, liquid-tight and translucent, and comprising an open end capable of accommodating a sleeve ( 10), the sleeve being translucent and arranged to close off and fix said handle to the support, characterized in that the exposure device admits positive buoyancy in water. The subject of the invention is also a photobioreactor provided with such a device and a method for starting such a photo-bioreactor.
    26- 'F ~ *' ^ 27
    -31 W

    - A DEVICE FOR EXPOSING THE LIGHT OF AN ALGAL SOLUTION, PHOTOBIOREACTOR AND ASSOCIATED STARTING METHOD
    The present invention relates to the field of the production of concentrated algal solutions and relates in particular to a device for exposure to light of an algal solution. The invention also relates to a photo-bioreactor incorporating such an exposure device as well as a method for starting such a photo-bioreactor.
    The development of algal culture, in particular microalgal in order to obtain a photosynthetic biofuel or nutraceutical compounds derived from algal biomass, can only be ensured on a large scale by significantly reducing the cost of photo-bioreactors and their exploitation. In addition, algal production is not limited to only warm and sunny regions, and technical solutions must be considered to increase algal production in countries located at latitudes of temperate regions.
    It is known from the state of the prior art photo-bioreactors which use compartments of different shapes, separated by rigid walls, in particular made of polycarbonate or other monomer or polymer materials. Document DE 103 15 750 thus shows a photo-bioreactor comprising rows of rigid transparent vertical tubes, through which the algal solution subjected to the light radiation which passes through the tubes, which allows photosynthesis. However, these materials are expensive and the manufacturing time is long for parts intended for industrial applications of photo-bioreactors which can cover several tens of hectares. In addition, these materials are flammable and their ecological footprint is significant for manufacturing and for deconstruction.
    It is also known from aerial photo-bioreactors which require a large land footprint and a height which induces a windward wind penalizing the construction. Due to their large surface area in contact with outside air, aerial photo-bioreactors are very sensitive to climatic conditions, which affects their performance in cold, windy or too hot regions.
    - 2 It is also known from the prior art through document W02013011448A1, a light exposure device based on flexible sleeves of very small thickness which take on a cylindrical shape only by difference in static pressure between the internal liquid in the sleeves and the liquid in the basin in which the micro algae are grown. The flexible nature of the handles immersed in the culture basin makes it possible to give them a cylindrical shape solely due to the difference in height of internal liquid with the water level of the basin. The static pressure is thus uniform over the entire height of the sleeves without any mechanical constraint, which makes it possible to reduce the thickness of the sleeves while retaining good mechanical strength. This type of solution makes it possible to envisage compact photo-bioreactors, produced with extremely light and inexpensive materials.
    The implementation can be ensured in existing natural or artificial basins adapted to the culture of micro-algae in continuous regime. The regular spacing of the sleeves is obtained by a plate with holes mounted on a support structure fixed above the pelvis.
    However, the fixing of this support structure is often critical due to the culture surface and the liquid load contained in the sleeves.
    In addition, the mounting and fixing of this supporting structure above a basin filled with water presents constraints subject to the handling and implementation of the multitude of handles and accessories necessary for cultivation.
    This is why an object of the invention is to overcome the constraints imposed by the supporting structure and in particular to simplify the mounting and fixing thereof above the basin.
    To this end, the invention provides a device for exposure to the light of an algal solution, for a photo-bioreactor, this exposure device comprising a flat support comprising at least one opening capable of accommodating at least one sleeve, the sleeve being of flexible material, liquid-tight and translucent, and comprising an open end capable of accommodating a sleeve, the sleeve being translucent and arranged for
    - 3 close off and fix said handle to the support, characterized in that the exposure device admits positive buoyancy in water.
    Optional, complementary or alternative features of the invention are set out below.
    The exposure device may include at least one flotation buoy.
    The planar support can admit positive buoyancy in water.
    The support can be a framework made of a material whose density is less than 2, preferably less than 1.
    The support can be a perforated plate made of a material whose density is less than 2, preferably less than 1.
    The sleeve may include an optical concentrator arranged to concentrate the light towards the inside of the at least one sleeve.
    The sleeve may include a valve for admitting a liquid into the sleeve.
    The exposure device may also include securing and / or anchoring means.
    The invention also relates to a photo-bioreactor for the production of an algal solution comprising a basin and at least one light exposure device, this exposure device comprising a support comprising at least one opening capable of accommodating at least one sleeve, the sleeve being of flexible material, liquid-tight and translucent, and comprising an open end capable of accommodating a sleeve, the sleeve being translucent and arranged to close off and fix said sleeve to the support, characterized in that the at least one exposure device is a light exposure device according to any one of the embodiments.
    Optional, complementary or alternative features of the invention are set out below.
    The photo-bioreactor can include several exposure devices assembled together so as to increase the surface area for exposure of the algal solution to light.
    - 4 The photo-bioreactor may further comprise a suction means arranged to suck the liquid contained in the at least one sleeve.
    The photo-bioreactor may further comprise a device for replacing the at least one sleeve, this replacement device comprising a drum and being arranged to wind the at least one sleeve on the drum and / or to unwind the at least a sleeve from this drum.
    The photo-bioreactor can comprise, in the lower part of the tank, means for distributing a gas under pressure, in particular carbon dioxide mixed or not with air, ensuring the agitation of the algal solution.
    The subject of the invention is also a method of starting a photo-bioreactor in accordance with any one of the embodiments of the invention, characterized in that it successively comprises:
    - a step of mounting at least one light exposure device,
    a step of installing at least one exposure device in the empty tank of the photo-bioreactor,
    - a step of filling the basin with a liquid for the production of an algal solution.
    Optional, complementary or alternative features of the invention are set out below.
    The method may further comprise, after filling the basin, a step of filling the at least one sleeve of the at least one exposure device with a liquid neutral for the algal solution, so as not to alter the algal solution in case of accidental rupture of the sleeve, and so that,
    At the end of the step of filling the at least one sleeve and when the at least one sleeve is immersed in the algal solution, the height of liquid in the sleeves can be greater than that of the algal solution in order to ensure differential hydrostatic pressure to maintain the shape of the sleeve without constraint.
    - 5 The method may further comprise, after filling the at least one sleeve, a step of securing and / or anchoring the at least one exposure device.
    The method can also comprise, after filling the basin, a step of seeding the liquid for the production of an algal solution with a strain of micro algae.
    Other advantages and particularities of the invention will appear on reading the detailed description of implementations and embodiments in no way limiting, and the following appended drawings:
    Figure 1 is a schematic vertical section of a photobioreactor according to the invention, with a basin containing the algal solution.
    Figure 2 is a horizontal section along line II-II of Figure 1.
    Figure 3 is a diagram, on a larger scale, of a vertical flexible sleeve mounted on its supporting structure.
    Figures 4 and 5 are vertical cross sections, on a smaller scale, of possible shapes for the photo-bioreactor basin.
    Figure 6 is a schematic section of a fastening element of a flexible sleeve on its support structure.
    Figure 7 is a top view of a first embodiment of the support structure of the flexible sleeves.
    Figure 8 is a top view of a second embodiment of the supporting structure of the flexible sleeves.
    Figure 9 is a schematic vertical section of a third embodiment of the supporting structure of the flexible sleeves.
    For the sake of clarity and conciseness, the references in the figures correspond to the same elements.
    The embodiments described below are in no way limiting, we can in particular consider variants of the invention comprising only a selection of described characteristics, isolated from the other described characteristics (even if this selection is isolated within a sentence including these other characteristics), if this selection of
    - 6 characteristics is sufficient to confer a technical advantage or to differentiate the invention from the state of the prior art. This selection comprises at least one characteristic, preferably functional without structural details, or with only part of the structural details if this part only is sufficient to confer a technical advantage or to differentiate the invention from the state of the prior art .
    Referring to Figure 1 of the drawings, one can see a photobioreactor 1, designated by the abbreviation PBR, for the production of a concentrated algal solution 2. The PBR. comprises a basin 3 containing the algal solution and a device for exposing this algal solution to light.
    According to the invention, the exposure device comprises at least one supporting structure or a flat support 6, comprising at least one opening, at least one sleeve 5 of flexible material, liquid-tight and translucent, and comprising an open end capable of receiving a sleeve 10, the sleeve being translucent and arranged to close off and fix said sleeve to the support.
    By translucent is meant the fact that the sleeve 5 and the sleeve 10 are capable of letting the light rays pass, said rays allowing photosynthesis reactions in the pelvis.
    Still according to the invention, the light exposure device admits positive buoyancy in water. “Positive buoyancy in water” means that the actual weight of the light exposure device is less than the Archimedes thrust, which allows the light exposure device to remain on the surface of the basin , and therefore to float.
    In more detail now, buoyancy can be provided in different ways.
    According to a first embodiment, the light exposure device can comprise one or more buoyancy buoys 8 which is / are attached to the support 6 so that it can float.
    According to a second embodiment, the support structure or support 6 intrinsically admits positive buoyancy and can be a framework
    - 7 61 made of a material whose density is less than 2, preferably less than 1. This framework can then consist of an assembly of agglomerated wooden bars of marine quality or any other low density and rot-proof composite material, such as than polyurethane, polystyrene loaded with glass fibers.
    According to a third embodiment, the support structure or support 6 intrinsically admits positive buoyancy and can be a perforated plate 62 also made of a material whose density is less than 2, preferably less than 1. The material can also be agglomerated wood of marine quality or any other low density and rot-proof composite material, such as polyurethane, polystyrene loaded with glass fibers.
    Of course, the light exposure device can provide a support structure or support 6 made of a material whose density is less than 2, preferably less than 1, and additionally provide one or more buoys 8.
    Also in detail, the sleeve 5 is made of a transparent flexible material, preferably resistant to traction. This sleeve 5 is suspended from the support structure or support 6 and is filled with a liquid L which provides a cylindrical shape to this sleeve.
    The flexible sleeve 5 is advantageously made of a material resistant to ultraviolet, in particular of polyethylene terephthalate, in particular of a material known under the registered trademark Mylar®, or equivalent material. The sleeve can be obtained by winding a rectangular portion of sheet 4 and by joining the two parallel edges by gluing or welding. The lower end of the sleeve is closed while the upper end remains open to be fixed, on its periphery, to the support 6.
    The attachment of the sleeve 5 to the support 6 can be carried out as illustrated in FIG. 3 by providing, in the support 6, for each sleeve a frustoconical opening 7, decreasing in section from top to bottom. The upper edge of the sleeve 5 is wedged against the frustoconical wall of the opening 7 by a sleeve 10 itself frustoconical, conjugated with the opening 7, and made of transparent material.
    - 8 The attachment of the sleeves 5 to the support 6 can also be ensured in a different way, in particular by flanges or O-ring 106 as illustrated in FIG. 6, instead of the retention by nested conical pieces. It is not necessary to ensure a total seal at this attachment because there is no contact between the algal solution and the water located inside the immersed sleeves 5.
    A rib 105 may be provided around the outer surface of the sleeve to prevent the sleeve from crossing the opening 610, 620 of the support when the sleeve 5 is mounted on said support.
    In the case where the supporting structure is a frame 61, the sleeves are inserted between the bars 610 and locked by means of their sleeve also inserted between the bars 610 in an adjusted manner.
    In the case where the supporting structure is a perforated plate 62, the sleeves are inserted into the holes 620 and locked by means of their sleeve also inserted into the holes 620 in an adjusted manner.
    According to the embodiment of Figure 1, the basin 3 is filled with algal solution 2. A plurality of flexible transparent sleeves 5, filled with liquid L, are immersed in the algal solution 2 and are regularly distributed to transmit and scatter light , collected at the upper end of the sleeves 5, throughout the basin and the solution 2.
    According to this embodiment, the liquid L which fills the sleeves 5 has the main function of transmitting and diffusing the light captured, and consists in particular of water and an additive (the additive can be antifreeze, or a fluorescent or antiseptic product, or an anti-foam product). The closed lower end of the sleeves 5 is preferably equipped with a ballast 11. This ballast 11 makes it possible, when introducing empty sleeves into the algal solution 2, to prevent them from floating, which would make it difficult their subsequent filling with water. The ballast can be formed from a rod or a ball of heavy material, metal or mineral.
    The composition of the liquid L which fills the sleeves 5 is neutral vis-à-vis the algal solution in order to avoid any risk in the event of accidental rupture. The liquid L, in the case of the embodiment of FIG. 1, is essentially water with an optional additive, this additive possibly being antifreeze, or an antiseptic, or a fluorescent product.
    - 9 The height h5 of the liquid in the sleeves 5 is slightly greater than that h2 (Figure 1) of the algal solution in the basin, in order to ensure a differential hydrostatic pressure (h5 - h2) which maintains the cylindrical shape without constraint on the flexible wall of the sleeves 5.
    The sleeves 5 are in contact, through their outer wall, with the algal solution 2 which fills the basin.
    In order to optimize the “light well” character of the sleeve, it is advantageous to add an optical concentrator 104 to the sleeve in order to concentrate the light towards the inside of the sleeve. Thus, an increase in the brightness is obtained inside the sleeves 5. For this purpose and as shown in FIG. 6, the sleeve 10 can comprise a body 101 holding a Fresnel lens 104. The sleeve can be closed so sealed by a translucent cover 102, which can also include an optical concentrator.
    Advantageously, the sleeve may include a valve 103 for admitting the liquid into the sleeve, when the sleeve is filled with a neutral liquid. This valve is then preferably provided on the cover 102 of the sleeve.
    As shown in FIG. 9, the basin 3 can comprise several light exposure devices in accordance with the invention and connected together by means of buoys 8.
    Advantageously, the light exposure device may further comprise lashing and / or anchoring means (not shown in the figures). Indeed, due to the positive buoyancy of the device, it is not necessary to fix it to the surface of the PBR basin. as was necessary in the prior art. Thus, in the case where it is desired to position the light exposure device at a precise location in the basin, or else in the case where there are several light exposure devices which could collide, it it is desirable either to secure them at a fixed point outside the pool, or to anchor them at the bottom of the pool.
    The basin can be of square or rectangular shape as illustrated in FIG. 2, or of cylindrical shape with circular cross section (not shown). The basin can be aerial as illustrated in FIG. 1,
    - 10 in which case portholes 12 can be provided in the walls to complete the exposure to light of the algal solution 2. The basin 3 can also be semi-buried or buried. The pool can also be made of prefabricated elements in the factory and assembled on site with a waterproofing coating (liner) of the type used in swimming pools.
    The vertical cross section 13 of the basin can be rectangular as illustrated in FIG. 4, with a flat roof. Alternatively, as illustrated in Figure 5, the vertical section 14 may have a lower part of trapezoidal shape.
    In the case of an aerial or semi-buried basin, the walls can also be made of a transparent waterproof membrane, in particular flexible, contributing to the exposure of the algal solution to light.
    A pipe 25 for extracting the algal solution is provided in the upper part of the basin, in order to benefit from the higher concentration of algae. After extraction and filtration, the return of water is ensured at the bottom by a pipe 26. The nutrients for the development of algae can be injected into the return water.
    The process for extracting the biomass from the algal solution of the photo-bioreactors is continuous and, since it does not require intermediate storage in tanks therefore, it is not necessary to provide ultrafiltration with membranes for avoid the untimely development of algae in the tanks.
    In order to optimize photosynthesis reactions, the photo-bioreactor according to the invention can provide a system for filtering the wavelengths of light.
    Also for this purpose, the photo-bioreactor can also provide solar shading to reduce the light intensity of the rays incident on the surface of the basin.
    Similarly, the photo-bioreactor can also provide artificial lighting means such as light-emitting diodes.
    The photo-bioreactor according to the invention can provide means for emptying a handle with a view to its replacement and the installation of another handle. The sleeve which one wishes to remove is connected, by its upper end, to a pipe connected to the inlet of a means
    - 11 for suction of the liquid located inside the sleeve. The suction means generally consists of a pump. The external pressure exerted by the algal solution compresses the sleeve which flattens and which, after disconnecting the suction line, is withdrawn from the pelvis.
    A device for replacing the sleeves, by winding, is provided above the pelvis. This device comprises a rotary winding drum mounted movable in translation above the basin while being supported by a rail. Cleaning members, in particular rotary brushes, are provided for moving in translation with the drum and for determining a vertical passage gap for the flattened handle which is cleaned by these brushes when it is removed from the algal solution. The device allows, by unwinding, to set up a new flattened sleeve in the algal solution to replace the one that has been removed.
    The PBR comprises, in the lower part of the basin, means for distributing a pressurized gas, in particular carbon dioxide (CO2) mixed or not with air favorable to the development of algae, and ensuring the agitation of the algal solution. The distribution means consist of ramps allowing the gas to be blown, as illustrated by arrows F, in the spaces between the sleeves 5. The distribution means 27 are connected to the outlet of a rotary booster 28, piston or screw, via line 29. The distribution of carbon dioxide (CO2) ensures agitation and homogeneity of the algal solution in the basin 9.
    It is possible to capture and recycle part of the gases which escape from the upper part of the basin in order to better exhaust carbon dioxide (CO2). For this, the PBR. further comprises gas capture means 30 formed by a pipe opening into the upper part of the basin 9, above the algal solution, in the gaseous sky above this solution. These capture means are connected to the suction of a fan 31 which discharges the gases in a pipe 32, in particular to the atmosphere. A part of these gases can be recycled by means of a nozzle 33 on the pipe 32, this nozzle being connected to the suction of the booster 28.
    - 12 Pool 3 is insulated to reduce heat loss. A regulation of the temperature of the algal solution is advantageously provided using a device for heating and / or cooling (not shown) of the water introduced by line 26 into the basin after filtration, which makes it possible to maintain optimal algae and microalgae growth conditions.
    Now concerning the method for starting a photobioreactor according to the invention, it is first of all advisable to mount at least one light exposure device. This assembly is preferably carried out in dry dock in the basin, but can also be carried out outside the basin. Once the assembly has been carried out, that is to say, once the sleeves are inserted into their support by means of their sleeve, one or more light exposure devices should be positioned at the bottom of the empty basin of the photo-bioreactor. Then simply fill the basin with a liquid for the production of an algal solution. In other words, when the entire device is mounted, the impoundment allows the structure of the PBR. gradually rise in relation to the filling of the basin until it reaches its operational level.
    After filling the basin, the sleeves can therefore be filled with a neutral liquid for the algal solution, so as not to alter the algal solution in the event of accidental rupture of the sleeve.
    Advantageously, when the sleeves are immersed in the algal solution, the height of liquid (h5) in the sleeves is greater than that (h2) of the algal solution in order to ensure a differential hydrostatic pressure for maintaining the shape of the sleeve. without restraint.
    In order to stabilize all of the light exposure devices, it is possible to tie down and / or anchor the exposure devices to each other or at the periphery of the basin.
    Finally, we can proceed with a step of seeding the liquid for the production of an algal solution, with a strain of micro algae.
    It will be noted that the advantage of the buoyancy of the light exposure device is expressed very particularly in the start-up of a photobioreactor in accordance with one of the embodiments described above.
    - 13 Indeed, with the devices of the prior art, it was necessary to securely fix the support to the ground surrounding the basin and then to mount the elements one by one above the basin. Consequently, the assembly, assembly and implementation of the elements above the basin was problematic and required suitable transport and lifting equipment (for example mounted on a barge). In addition, the security of personnel weighed heavily on rates and infrastructure. If part of the equipment fell into the basin, the start-up was delayed.
    Thus, the floating nature of the light exposure device makes it possible to simplify and secure the use of the light exposure device, and this, at a lower cost.
    It should also be noted that the buoyancy of the light exposure devices allows great modularity. Indeed, given the fact that it is not necessary to fix them at the periphery of the basin, it is possible to add, remove or change them while the basin is in operation.
    In other words, these light exposure devices are very autonomous in terms of use (installation, lifetime).
    In addition, the position of the sleeves of the light exposure device relative to the water surface is always the same regardless of the variations in the water level in the basin.
    No support structure with feet placed on the ground is necessary.
    It is possible to mount the light exposure device outside the basin and to translate it on the filled or unfilled basin.
    There is only a small risk of damage due to a change in the water level in the basin.
    The assembly is fast and does not require heavy lifting means.
    It is possible to use recycled materials for the structure and the floats.
    Of course, the invention is not limited to the examples which have just been described and numerous modifications can be made to these examples without departing from the scope of the invention. In addition, the different
    - 14 characteristics, forms, variants and embodiments of the invention can be associated with each other in various combinations insofar as they are not incompatible or mutually exclusive of each other.
    权利要求:
    Claims (18)
    [1" id="c-fr-0001]
    1. Device for exposure to the light of an algal solution, for a photobioreactor, this exposure device comprising:
    - a flat support (6, 61, 62) comprising at least one opening (610, 620) capable of accommodating at least one sleeve (5), the sleeve (5) being of flexible material, liquid tight and translucent, and comprising an open end capable of accommodating a sleeve (10),
    - the sleeve being translucent and arranged to close off and fix said handle to the support, characterized in that the exposure device admits positive buoyancy in water, in the sense that the actual weight of the light exposure device is lower than the Archimedes thrust induced during its immersion.
    [2" id="c-fr-0002]
    2. Exposure device according to claim 1, characterized in that it comprises at least one buoyancy buoy (8) for the flat support (6).
    [3" id="c-fr-0003]
    3. Exposure device according to any one of claims 1 or 2, characterized in that the planar support (6) admits positive buoyancy in water, in the sense that the actual weight of the planar support is less than the Archimedes thrust induced during its immersion.
    [4" id="c-fr-0004]
    4. Exposure device according to any one of claims 1 to 3, characterized in that the support is a frame (61) made of a material whose density is less than 2, preferably less than 1.
    [5" id="c-fr-0005]
    5. Exposure device according to any one of claims 1 to 3, characterized in that the support is a perforated plate (62) made of a material whose density is less than 2, preferably less than 1.
    [6" id="c-fr-0006]
    6. Exposure device according to any one of claims 1 to 5, characterized in that the at least one sleeve comprises a concentrator
    - 16 optics (104) arranged to concentrate the light towards the inside of the at least one sleeve.
    [7" id="c-fr-0007]
    7. Exposure device according to any one of claims 1 to 6, characterized in that the at least one sleeve comprises a valve (103) for the admission of a liquid into the sleeve.
    [8" id="c-fr-0008]
    8. Exposure device according to any one of claims 1 to 7, characterized in that it further comprises lashing and / or anchoring means.
    [9" id="c-fr-0009]
    9. Photo-bioreactor for the production of an algal solution comprising a basin (3) and at least one light exposure device, this exposure device comprising:
    a flat support (6, 61, 62) comprising at least one opening (610, 620) capable of accommodating at least one sleeve (5), the sleeve (5) being of flexible material, liquid tight and translucent, and comprising a open end capable of accommodating a sleeve (10),
    - the sleeve being translucent and arranged to close off and fix said handle to the support, characterized in that the at least one exposure device is a light exposure device according to any one of claims 1 to 8.
    [10" id="c-fr-0010]
    10. Photo-bioreactor according to claim 9, characterized in that it comprises several exposure devices assembled together so as to increase the area of exposure of the algal solution to light.
    [11" id="c-fr-0011]
    11. Photo-bioreactor according to any one of claims 9 to 10, characterized in that it further comprises a suction means arranged to suck the liquid contained in the at least one sleeve.
    [12" id="c-fr-0012]
    12. Photo-bioreactor according to any one of claims 9 to 11, characterized in that it further comprises a device for replacing the at least one sleeve, this replacement device comprising a
    - 17 drum and being arranged to wind the at least one sleeve on the drum and / or to unwind the at least one sleeve from this drum.
    [13" id="c-fr-0013]
    13. Photo-bioreactor according to any one of claims 9 to 12, characterized in that it comprises, in the lower part of the tank (3), means of distribution (27) of a pressurized gas, in particular dioxide carbon (CO2) mixed or not with air, ensuring the agitation of the algal solution.
    [14" id="c-fr-0014]
    14. Method for starting up a photo-bioreactor according to any one of claims 9 to 13, characterized in that it successively comprises:
    a step of mounting at least one light exposure device according to one of claims 1 to 8,
    a step of installing at least one exposure device in the empty tank of the photo-bioreactor,
    - a step of filling the basin with a liquid for the production of an algal solution.
    [15" id="c-fr-0015]
    15. A method of starting a photo-bioreactor according to claim 14, characterized in that it further comprises, after filling the basin, a step of filling the at least one sleeve from to minus an exposure device with a neutral liquid for the algal solution, so as not to alter the algal solution in the event of accidental rupture of the sleeve.
    [16" id="c-fr-0016]
    16. Method for starting a photo-bioreactor according to claim 15, characterized in that, when the at least one sleeve is immersed in the algal solution, the height of liquid (h5) in the sleeves is greater than that (h2) of the algal solution in order to ensure a differential hydrostatic pressure for maintaining the shape of the sleeve without constraint.
    [17" id="c-fr-0017]
    17. A method of starting a photo-bioreactor according to claim 15 or 16, characterized in that it further comprises, at the end of the
    - 18 filling of at least one sleeve, a step of securing and / or anchoring the at least one exposure device.
    [18" id="c-fr-0018]
    18. A method of starting a photo-bioreactor according to any one of claims 14 to 17, characterized in that it further comprises, after filling the tank, a step of seeding the liquid for the production of an algal solution with a strain of micro algae.
    1/2 "X /
    Z / Z
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    同族专利:
    公开号 | 公开日
    WO2018060197A1|2018-04-05|
    US20200032181A1|2020-01-30|
    FR3056600B1|2020-10-02|
    AU2017333878A1|2019-04-11|
    CN109790501A|2019-05-21|
    EP3519552A1|2019-08-07|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JPH0564578A|1991-09-06|1993-03-19|Ebara Res Co Ltd|Floating type device for culturing photosynthetic microorganism|
    WO2010077638A1|2008-12-08|2010-07-08|Sapphire Energy, Inc|Light transport in a bioreactor system|
    WO2013011448A1|2011-07-18|2013-01-24|Suez Environnement|Photobioreactor for producing a concentrated algal solution and device for exposing the solution, in particular for such a photobioreactor|
    WO2016087779A1|2014-12-02|2016-06-09|Barbarin Frédéric|Device for producing a photosynthetic culture by means of a photo-bioreactor and at least one light distributor|
    DE10315750A1|2003-04-04|2004-10-21|Stadtwerke Stollberg|Plant for making micro-algae concentrate, comprises a system for mixing the product intensively with carbon dioxide from e.g. flue gases|FR3093515B1|2019-03-05|2021-03-05|Duong Frederic|AGITATION SYSTEM AND BASIN EQUIPPED WITH SUCH AGITATION SYSTEM|
    FR3093516B1|2019-03-05|2021-03-05|Duong Frederic|AGITATION SYSTEM AND BASIN EQUIPPED WITH SUCH AGITATION SYSTEM|
    CN110106064B|2019-06-03|2020-06-16|中国矿业大学|Quick microalgae screening device and quick microalgae screening method|
    CN110538864A|2019-07-18|2019-12-06|张军|Microbial soil remediation device and method|
    FR3107459B1|2020-02-20|2022-01-14|Suez Groupe|INSTALLATION AND AIR CLEANING PROCESS|
    法律状态:
    2017-08-30| PLFP| Fee payment|Year of fee payment: 2 |
    2018-03-30| PLSC| Search report ready|Effective date: 20180330 |
    2018-07-06| CL| Concession to grant licences|Name of requester: ALGAE NATURAL FOOD, FR Effective date: 20180601 |
    2018-09-06| PLFP| Fee payment|Year of fee payment: 3 |
    2019-09-25| PLFP| Fee payment|Year of fee payment: 4 |
    2020-09-25| PLFP| Fee payment|Year of fee payment: 5 |
    2021-09-28| PLFP| Fee payment|Year of fee payment: 6 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1659114A|FR3056600B1|2016-09-27|2016-09-27|DEVICE FOR EXPOSURE TO THE LIGHT OF AN ALGAL SOLUTION, PHOTOBIOREACTOR AND ASSOCIATED START-UP PROCEDURE|
    FR1659114|2016-09-27|FR1659114A| FR3056600B1|2016-09-27|2016-09-27|DEVICE FOR EXPOSURE TO THE LIGHT OF AN ALGAL SOLUTION, PHOTOBIOREACTOR AND ASSOCIATED START-UP PROCEDURE|
    CN201780059255.7A| CN109790501A|2016-09-27|2017-09-26|For making algae solution be exposed to the device, relevant bioreactor and implementation method of light|
    US16/337,033| US20200032181A1|2016-09-27|2017-09-26|Device for exposing an algal solution to light, associated photobioreactor and implementation method|
    PCT/EP2017/074385| WO2018060197A1|2016-09-27|2017-09-26|Device for exposing an algal solution to light, associated photobioreactor and implementation method|
    AU2017333878A| AU2017333878A1|2016-09-27|2017-09-26|Device for exposing an algal solution to light, associated photobioreactor and implementation method|
    EP17780348.3A| EP3519552A1|2016-09-27|2017-09-26|Device for exposing an algal solution to light, associated photobioreactor and implementation method|
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