Photosynthetic bioreactor system

Abstract

The embodiment of the invention relates to the technical field of bioreactors, in particular to a photosynthetic bioreactor system. The system comprises: at least one bioreactor configured to: provide a transparent culture area of photosynthetic microorganisms; the conditioning device is configured to: produce a desired liquid medium; the collection device is configured to: recover the organic matter formed by the bioreactor; the nanobubble generating device is configured to convert a gas containing carbon dioxide into microbubbles introduced into a liquid; wherein the bioreactor is provided with a culture medium inlet, a culture medium outlet and a gas inlet which are communicated with the transparent culture area; the conditioning device is connected with a culture medium inlet of each bioreactor, and the collecting device is connected with a culture medium outlet of each bioreactor; the nanobubble generating device is connected with an air inlet of each bioreactor. The thickness of the transparent culture area is smaller than a preset size, so that light can penetrate through the transparent culture area.

Description

Technical field

[0001] The present application relates to the technical field of bioreactors, and in particular to a photosynthetic bioreactor system. [Background Technology]

[0002] Photosynthetic bioreaction is a technology that uses light energy and microorganisms to carry out photosynthesis. Its technical principle is to use light energy and photosynthetic microorganisms (such as algae, bacteria or fungi) to carry out photosynthesis to convert carbon dioxide and sunlight into organic matter and oxygen.

[0003] Biomass production offers numerous advantages over traditional industrial production. For one thing, it utilizes solar energy as a renewable energy source, reducing reliance on fossil fuels. Furthermore, it absorbs significant amounts of carbon dioxide, helping to reduce greenhouse gas emissions. Furthermore, it boasts higher biomass yields and growth rates, while requiring less land.

[0004] As environmental protection concepts are increasingly valued, this technology has begun to be widely used in many fields, such as biofuel production, organic matter production, wastewater treatment, climate regulation and biopharmaceutical production, thus playing an important role in sustainable development and environmental protection.

[0005] However, the existing photosynthetic bioreactor system still has many defects in use, cannot well meet the needs of practical applications, and still needs to be improved in production and reaction efficiency. Therefore, it is urgent to provide a suitable, more efficient photosynthetic bioreactor system. [Summary of the invention]

[0006] The embodiments of the present application aim to provide a photosynthetic bioreactor system that can solve the defect of low production efficiency existing in existing bioreactors.

[0007] The present application provides the following technical solution: a photosynthetic bioreactor system. The bioreactor system includes: at least one bioreactor configured to provide a transparent culture area for photosynthetic microorganisms, so that the photosynthetic microorganisms can use light energy to convert carbon dioxide into organic matter; a conditioning device configured to produce an ideal liquid culture medium; a collection device configured to recover organic matter generated by the bioreactor; and a nanobubble generator configured to convert gas containing carbon dioxide into microbubbles that are introduced into the liquid; the microbubbles having a diameter between N*10 nanometers and N*100 nanometers, where N is a positive integer; wherein the bioreactor is provided with a culture medium inlet, a culture medium outlet, and a gas inlet that are connected to the transparent culture area; the conditioning device is connected to the culture medium inlet of each bioreactor, the collection device is connected to the culture medium outlet of each bioreactor; and the nanobubble generator is connected to the air inlet of each bioreactor; and the thickness of the transparent culture area is less than a predetermined size to allow light to penetrate the transparent culture area.

[0008] Optionally, the bioreactor is a plate-like structure formed by two opposite end faces and a wall connecting the two end faces; wherein the interval between the two opposite end faces is the thickness of the transparent culture area; and the two end faces and the wall of the bioreactor are made of transparent material.

[0009] Optionally, when the bioreactor is placed on the ground via a support bracket, a projected area of ​​the bioreactor on the ground is significantly smaller than a projected area of ​​the bioreactor in a direction perpendicular to the ground.

[0010] Optionally, the support bracket includes: a fixed part; the fixed part forms a receiving space adapted to the thickness of the bioreactor so that the bioreactor is confined within the receiving space; a supporting part; the supporting part extends from the bottom end of the fixed part in a direction parallel to the ground to form a plurality of supporting legs; wherein the supporting legs have a preset length so that at least part of the gravity of the bioreactor confined within the receiving space is transferred to the ground.

[0011] Optionally, the culture medium outlet is arranged on the bottom surface of the bioreactor; the culture medium inlet and the air inlet are both arranged on the side wall of the bioreactor; wherein, the bottom surface of the bioreactor is the part of the wall surface of the bioreactor closest to the ground when the bioreactor is placed on the ground through a supporting bracket; the side wall of the bioreactor is the part of the wall surface of the bioreactor that is relatively perpendicular to the ground when the bioreactor is placed on the ground through a supporting bracket.

[0012] Optionally, the transparent culture area of ​​the bioreactor has an interior slope; wherein the slope has a preset gradient, sloping from the side wall of the bioreactor to the bottom surface of the bioreactor.

[0013] Optionally, the transparent material includes: flexible plastic and composite film; wherein, the bottom surface of the bioreactor is further provided with an air tube composed of the plastic film, and the air tube forms the air inlet of the bioreactor.

[0014] Optionally, the conditioning device is provided with a sensor; the collected data of the sensor is fed back to the control unit to make the liquid culture medium have an ideal state; wherein the sensor is selected from one or more of the following sensors: a dissolved carbon dioxide sensor, a dissolved oxygen sensor, a pH sensor, a temperature sensor, a turbidity sensor, a dissolved solids sensor and a fluorescence sensor.

[0015] Optionally, the photosynthetic microorganism is selected from one or more of the following cyanobacteria or microalgae: Nannochloropsis isoculata; Nannochloropsis salina; Nannochloropsis sp.; Tetraselmissuecica; Tetraselmischuii; Botryococcus braunii; Chlorella sp.; Chlorella ellipsoidea; Chlorella emersonii; Chlorella minutissima; Chlorella protothecoides; Chlorella pyrenoidosa; Chlorella salina; Chlorella sorokiniana; Chlorella spp. vulgaris; Chroomonas salina; Cyclotella cryptica; Cyclotella sp.; Dunaliella salina; Dunaliella bardawil; Dunaliella tertiolecta; Euglena gracilis; Gymnodinium nelsoni; Haematococcus pluvialis; Isochrysis galbana; Monoraphidium minutum; Monoraphidium sp.; Nannochloris sp.; Neochloris oleoabundans; Nitzschia laevis; Onoraphidium sp.); Pavlova lutheri; Phaeodactylum tricornutum; Porphyridium cruentum; Scenedesmus obliquus; Scenedesmus quadricauda; Scenedesmus sp.); Skeletonema; Stichococcus bacillaris; Spirulina platensis; Thalassiosira sp.; the light includes sunlight and / or diffusely reflected light generated by a light-emitting device; the gas containing carbon dioxide includes air, carbon dioxide gas, exhaust gas from a power plant, or exhaust gas from a combustion chamber.

[0016] Optionally, the collection device includes: a tank body; the tank body is connected to the culture medium outlet of each bioreactor through a recovery pipe to collect organic matter flowing out with the liquid culture medium; a cone-shaped portion; the cone-shaped portion is formed at the bottom of the tank body and is configured to: separate the organic matter and the liquid culture medium; wherein the end of the cone-shaped portion forms an organic matter outlet for outputting the separated organic matter; the tank body is also connected to the conditioning device through a circulation pipe to re-input the separated liquid culture medium into the conditioning device.

[0017] One advantage of the photosynthetic bioreactor system of the present invention is that the additional nanobubble generator can produce nanosized bubbles with a significantly higher surface area to volume ratio than traditional bubbles. This effectively increases the solubility of carbon dioxide in the liquid, thereby further improving the photosynthetic reaction efficiency of the photosynthetic bioreactor. Furthermore, by designing the appropriate culture area thickness, external light can penetrate the entire culture area, providing optimal lighting conditions for algae photosynthesis and growth.

Brief Description of the Drawings

[0018] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0019] Figure 1 A schematic diagram of a photosynthetic bioreactor system provided in an embodiment of the present application;

[0020] Figure 2 A schematic diagram of the structure of a bioreactor provided in an embodiment of the present application;

[0021] Figure 3 A schematic diagram of the structure of the support bracket provided in an embodiment of the present application;

[0022] Figure 4 A schematic diagram of the structure of the collection device provided in an embodiment of the present application. [Specific implementation method]

[0023] In order to facilitate the understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as being "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "upper", "lower", "inner", "outer", "bottom" and the like used in this specification indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0024] Unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as those commonly understood by those skilled in the art to which this application belongs. The terms used in this specification and in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" as used in this specification includes any and all combinations of one or more of the relevant listed items.

[0025] In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0026] Figure 1 This is a schematic diagram of the photosynthetic bioreactor system provided in the embodiment of the present application. It shows the connection relationship between the various functional modules in the system and the direction of material transmission. Figure 1 As shown, the bioreactor system includes: at least one bioreactor 10 , a conditioning device 20 , a collection device 30 and a nanobubble generating device 40 .

[0027] The bioreactor 10 is the basic functional unit for photosynthesis in the system, providing a transparent culture area for photosynthetic microorganisms, which can utilize the energy of light to convert carbon dioxide into organic matter, thus achieving the above-mentioned photosynthetic biological reaction.

[0028] Furthermore, the bioreactor 10 may have a suitable structural design so that the thickness of the transparent culture area is smaller than a preset size, thereby ensuring that light can penetrate the entire transparent culture area and meet the light energy requirements of the algae photosynthesis.

[0029] Specifically, the number of bioreactors 10 can be set or adjusted according to actual conditions and is not specifically limited here. For example, technicians can select an appropriate number of bioreactors 10 based on actual usage needs and constraints (such as the target amount of carbon dioxide to be processed and the size of the installation site).

[0030] Conditioning device 20 is a device used to process and adjust liquid substances. It can perform one or more operations, such as mixing, stirring, conditioning, and processing, to ensure that the resulting liquid culture medium meets the intended use. In this embodiment, the term "ideal" is used to indicate that the liquid culture medium is in an ideal state that meets the intended use.

[0031] Preferably, the conditioning device 20 may also be equipped with one or more sensors to sense one or more characteristics of the current liquid culture medium. The data collected by these sensors can be fed back to the control unit, which, after calculation and feedback, uses appropriate measures to ensure that the liquid culture medium in the conditioning device 20 is in an ideal state. For example, different culture medium raw materials may be added, or one or more conditioning agents may be added.

[0032] The sensor is selected from one or more of the following sensors: a dissolved carbon dioxide sensor, a dissolved oxygen sensor, a pH sensor, a temperature sensor, a turbidity sensor, a dissolved solids sensor, and a fluorescence sensor.

[0033] The collection device 30 is a device for recovering organic matter. It can be used to recover organic matter formed in the bioreactor and output it through a specific output port for use in subsequent steps. In this embodiment, this "organic matter" can be considered as the portion after algae growth and proliferation.

[0034] The nanobubble generating device 40 is a bubble generating device capable of generating nano-level bubbles. It can use ultrasound, electrolysis, pressure waves or other mechanisms to introduce gas containing carbon dioxide into liquid and generate tiny bubbles.

[0035] Specifically, the diameter of the microbubbles may be between N*10 nanometers and N*100 nanometers, where N is a positive integer. In other words, the microbubbles may have a bubble diameter of tens to hundreds of nanometers, thereby providing good carbon dioxide solubility.

[0036] Please continue reading Figure 1 In the complete bioreactor system, each bioreactor 10 is provided with a culture medium inlet 11, a culture medium outlet 12 and a gas inlet 13 connected to the transparent culture area.

[0037] The conditioning device 20 can be connected to the culture medium inlet 11 of each bioreactor 10 through a liquid input pipe 51 to provide liquid culture medium to the bioreactor 10 and control the culture medium level in the bioreactor 10.

[0038] The collecting device 30 is connected to the culture medium outlet 12 of each bioreactor 10 through a liquid recovery pipe 52 , and recovers the organic matter produced by photosynthesis from the bioreactor 10 by recovering the liquid culture medium.

[0039] A nanobubble generating device 40 is introduced into the system and connected to the air inlet 13 of each bioreactor. It uses an external gas source to generate tiny bubbles that are introduced into the liquid culture medium to provide sufficient carbon dioxide for photosynthesis.

[0040] The above system can also be equipped with one or more connecting pipes and / or functional modules according to the actual needs to support the needs of different practical application scenarios. For example, the collection device 30 and the conditioning device 40 can also be connected through a circulation pipe 53, so that the liquid culture medium recovered by the collection device 30 is re-input into the conditioning device 20 to achieve the recycling of the liquid culture medium, or an additional liquid pump 70 or air pump 80 can be added to the relevant pipes to help increase the flow rate of the liquid / gas. Optionally, a valve 90 can be added to one or more pipes to control the liquid flow rate of the pipe or to shut off the pipe to adapt to different operating conditions.

[0041] In some embodiments, please refer to Figure 1 The system can also be further adapted for sewage treatment applications by adding an additional filter device 60. The filter device 60 is connected to the circulation pipe 53 and can filter the incoming sewage or wastewater. The filtered sewage or wastewater is then introduced into the conditioning device 20 as part of the raw material for the liquid culture medium, allowing it to be further processed by the subsequent bioreactor 10.

[0042] In some embodiments, as Figure 2 As shown, the bioreactor 10 may be a plate-like structure formed by two opposite end surfaces 14 and a continuous wall 15 connecting the two end surfaces.

[0043] The "plate-like structure" refers to a relatively flat structural component with a radial dimension significantly larger than an axial dimension. The two end surfaces and the wall of the bioreactor are made of transparent materials, and the distance between the two opposite end surfaces 14 is the thickness of the transparent culture area.

[0044] Figure 2 This is a schematic diagram of the structure of the bioreactor provided in the embodiment of this application. For ease of description, Figure 2 The embodiment of the present invention exemplifies a substantially cubic shape. However, those skilled in the art will appreciate that other similar three-dimensional shapes may also be used.

[0045] In a preferred embodiment, the plate-shaped bioreactor can be placed on the ground in an "upright" manner by means of a support frame 70. Upright placement refers to a placement in which the projected area of ​​the bioreactor on the ground is significantly smaller than the projected area of ​​the bioreactor in a direction perpendicular to the ground.

[0046] Here, "significant" means that the difference between the two is huge, and should at least mean that the difference is greater than 50% or more. For example, the end face of the bioreactor can be placed at an angle close to vertical to the ground.

[0047] This placement method can provide a larger light-sensing area while occupying a smaller area, thereby improving the efficiency of the entire system in utilizing the ground area.

[0048] For details, please refer to Figure 2 The above-mentioned culture medium outlet 12 can be set on the bottom surface 151 of the bioreactor 10, while the culture medium inlet 11 and the air inlet 13 are both set on the side wall 152 of the bioreactor.

[0049] The bottom surface 151 of the bioreactor is the part of the wall surface 15 of the bioreactor closest to the ground when the bioreactor is placed on the ground through the support frame. Figure 2 As shown, one of the walls of the cubic bioreactor is opposite in the width direction.

[0050] The side wall 152 of the bioreactor is the portion of the wall of the bioreactor that is relatively perpendicular to the ground when the bioreactor is placed on the ground by the support frame. Figure 2 As shown, one of the walls of the cubic bioreactor is opposite in the length direction.

[0051] Thus, the culture medium outlet located on the bottom surface can conveniently remove precipitated organic matter from the bioreactor along with a portion of the liquid culture medium and transfer it to a collection device for collection. The height of the culture medium inlet 11 can help control the height of the liquid culture medium within the bioreactor. The air inlet 13 can be appropriately positioned at a lower height relative to the culture medium inlet 11 to ensure that the generated microbubbles are directed into the liquid culture medium rather than being directly exposed to the air layer of the bioreactor.

[0052] In the preferred embodiment, please continue to refer to Figure 2 An additional slope 16 may be further provided inside the transparent culture area of ​​the bioreactor 10 .

[0053] The inclined surface 16 has a predetermined slope. It slopes from the bioreactor's sidewall 152 toward the bioreactor's bottom 151, thereby increasing upward circulation and facilitating more even exposure of the algae to the light source and carbon dioxide. Furthermore, a suitable slope helps improve the efficiency of emptying the bioreactor of liquid culture medium and photosynthetic microorganisms.

[0054] Specifically, the transparent material may include a flexible plastic and a composite film, supported by a rigid support frame, thereby forming the transparent culture area described above. Accordingly, an air tube composed of the plastic film is provided on the bottom surface of the bioreactor, forming the air inlet of the bioreactor.

[0055] Alternatively, the transparent material may also be partially made of hard transparent glass or acrylic to replace the hard supporting frame.

[0056] Figure 3 This is a schematic diagram of a support bracket provided in an embodiment of the present application. The support bracket can be used with Figure 2 The square bioreactor shown in the figure can be used together to make it stable and stand upright on the ground. Figure 3 As shown, the supporting bracket 70 may include: a fixing portion 71 and a supporting portion 72 .

[0057] The fixing portion 71 forms a receiving space adapted to the thickness of the bioreactor 10 , so that the bioreactor 10 is confined within the receiving space.

[0058] The support portion 72 extends from the bottom end of the fixed portion 71 in a direction parallel to the ground to form a plurality of legs. The legs are long enough to transfer at least a portion of the weight of the bioreactor confined in the receiving space to the ground.

[0059] Specifically, the fixing portion 71 and the supporting portion 72 can be made of metal tubes or long strips of metal material by welding, etc. The surfaces of these metal tubes or long strips can also be coated with an anti-rust coating to increase service life.

[0060] Figure 4 Schematic diagram of a collection device provided in an embodiment of the present application. In some embodiments, as Figure 4 As shown, the collecting device 30 may include: a tank body 31 and a cone-shaped portion 32 .

[0061] The tank 31 is the main part of the entire collection device. It can be roughly cylindrical and connected to the culture medium outlet of each bioreactor through a recovery pipe to receive and store the outflowing liquid culture medium.

[0062] The conical portion 32 is formed at the bottom of the tank 31 and is a separation structure for separating organic matter from the liquid culture medium. Its large inclination allows the organic matter flowing out with the liquid culture medium to settle at the end of the conical portion 32, thereby achieving separation of the organic matter and the liquid culture medium.

[0063] In actual use, the separated organic matter is output through the organic matter outlet formed at the end of the tapered portion 32. The separated liquid culture medium can be returned to the conditioning device through a circulation pipe between the tank body 32 and the conditioning device for processing, and after being restored to an ideal liquid culture medium, it can be continuously supplied to the bioreactor.

[0064] In some embodiments, the photosynthetic microorganism is selected from one or more of the following cyanobacteria or microalgae: Nannochloropsis isoculata; Nannochloropsis salina; Nannochloropsis sp.; Tetraselmissuecica; Tetraselmischuii; Botryococcus braunii; Chlorella sp.; Chlorella ellipsoidea; Chlorella emersonii; Chlorella minutissima; Chlorella protothecoides; Chlorella pyrenoidosa; Chlorella salina; Chlorella sorokiniana; Chlorella vulgaris; Chroomonas salina; Cyclotella cryptica; Cyclotella sp.; Dunaliella salina; Dunaliella bardawil; Dunaliella tertiolecta; Euglena gracilis; Gymnodinium nelsoni; Haematococcus pluvialis; Isochrysis galbana; Monoraphidium minutum; Monoraphidium sp.; Nannochloris sp.; Neochloris oleoabundans; Nitzschia laevis; Onoraphidium sp.); Pavlova lutheri; Phaeodactylum tricornutum; Porphyridium cruentum; Scenedesmus obliquus; Scenedesmus quadricauda; Scenedesmus sp.); Skeletonema; Stichococcusbacillaris; Spirulina (Spirulina platensis); Thalassiosira sp.

[0065] Preferably, the light provided to the bioreactor in the system may include sunlight and diffusely reflected light generated by a light emitting device, thereby improving the photosynthetic efficiency of the bioreactor.

[0066] Specifically, the system uses a carbon dioxide-containing gas source, which can include air, carbon dioxide gas, power plant exhaust, or combustion chamber exhaust, depending on the specific application scenario. These carbon dioxide-containing gas sources are connected to a nanobubble generator to generate nanosized bubbles when introduced into the liquid culture medium.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Based on the concept of the present application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present application as described above. For the sake of simplicity, they are not provided in detail. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A photosynthetic bioreactor system, characterized in that: include: At least one bioreactor is configured to: provide a transparent culture area for photosynthetic microorganisms, so that the photosynthetic microorganisms use the energy of light to convert carbon dioxide into organic matter; A conditioning device configured to: produce a desired liquid culture medium; a collection device configured to: recover organic matter formed in the bioreactor; A nanobubble generating device configured to convert a gas containing carbon dioxide into microbubbles that are introduced into a liquid; the diameter of the microbubbles is between N*10 nanometers and N*100 nanometers, where N is a positive integer; Wherein, the bioreactor is provided with a culture medium inlet, a culture medium outlet and a gas inlet which are connected to the transparent culture area; The conditioning device is connected to the culture medium inlet of each bioreactor, and the collecting device is connected to the culture medium outlet of each bioreactor; The nanobubble generating device is connected to the air inlet of each bioreactor; The thickness of the transparent culture area is smaller than a preset size, so that the light can penetrate the transparent culture area.

2. The photosynthetic bioreactor system according to claim 1, characterized in that: The bioreactor is a plate-like structure formed by two opposite end surfaces and a wall connecting the two end surfaces; The interval between the two opposite end surfaces is the thickness of the transparent culture area; and the two end surfaces and the wall surface of the bioreactor are both made of transparent materials.

3. The photosynthetic bioreactor system according to claim 2, characterized in that: When the bioreactor is placed on the ground via the support bracket, the projected area of ​​the bioreactor on the ground is significantly smaller than the projected area of ​​the bioreactor in a direction perpendicular to the ground.

4. The photosynthetic bioreactor system according to claim 3, characterized in that: The support bracket comprises: The fixing portion forms a receiving space adapted to the thickness of the bioreactor so that the bioreactor is confined within the receiving space; Support portion; the support portion extends from the bottom end of the fixed portion in a direction parallel to the ground to form a plurality of legs; The supporting legs have a preset length so that at least a portion of the gravity of the bioreactor confined in the receiving space is transferred to the ground.

5. The photosynthetic bioreactor system according to claim 3, characterized in that: The culture medium outlet is arranged on the bottom surface of the bioreactor; the culture medium inlet and the air inlet are both arranged on the side wall of the bioreactor; The bottom surface of the bioreactor is the part of the wall of the bioreactor closest to the ground when the bioreactor is placed on the ground through the support frame; The side wall of the bioreactor is a portion of the wall of the bioreactor that is relatively perpendicular to the ground when the bioreactor is placed on the ground via a supporting bracket.

6. The photosynthetic bioreactor system according to claim 5, characterized in that: The transparent culture area of ​​the bioreactor has an inclined surface inside; The inclined surface has a preset slope and slopes from the side wall of the bioreactor to the bottom surface of the bioreactor.

7. The photosynthetic bioreactor system according to claim 5, characterized in that: The transparent material includes: flexible plastic and composite film; The bottom surface of the bioreactor is further provided with an air tube composed of the plastic film, and the air tube forms the air inlet of the bioreactor.

8. The photosynthetic bioreactor system according to claim 1, characterized in that: The conditioning device is provided with a sensor; the collected data of the sensor is fed back to the control unit to make the liquid culture medium have an ideal state; The sensor is selected from one or more of the following sensors: a dissolved carbon dioxide sensor, a dissolved oxygen sensor, a pH sensor, a temperature sensor, a turbidity sensor, a dissolved solids sensor, and a fluorescence sensor.

9. The photosynthetic bioreactor system according to any one of claims 1 to 8, characterized in that: The photosynthetic microorganism is selected from one or more of the following cyanobacteria or microalgae: Nannochloropsis isoculata; Nannochloropsis salina; Nannochloropsis sp.; Tetraselmissuecica; Tetraselmischuii; Botryococcus braunii; Chlorella sp.; Chlorella ellipsoidea; Chlorella emersonii; Chlorella minutissima; Chlorella protothecoides; Chlorella pyrenoidosa; Chlorella salina; Chlorella sorokiniana; Chlorella vulgaris; Chroomonas salina salina; Cyclotella cryptica; Cyclotella sp.; Dunaliella salina; Dunaliella bardawil; Dunaliella tertiolecta; Euglena gracilis; Gymnodinium nelsoni; Haematococcus pluvialis; Isochrysis galbana; Monoraphidium minutum; Monoraphidium sp.; Nannochloris sp.; Neochloris oleoabundans; Nitzschia laevis; Onoraphidium sp.; Pavlova lutheri; Phaeodactylumtricornutum; Porphyridiumcruentum; Scenedesmusobliquus; Scenedesmusquadricauda; Scenedesmus sp.); Skeletonema; Stichococcus bacillaris; Spirulina platensis; Thalassiosira sp.; The light includes: sunlight and / or diffusely reflected light generated by a light-emitting device; The gas containing carbon dioxide includes: air, carbon dioxide gas, waste gas from a power plant or waste gas from a combustion chamber.

10. The photosynthetic bioreactor system according to any one of claims 1 to 8, characterized in that: The collecting device comprises: The tank body is connected to the culture medium outlet of each bioreactor through a recovery pipe to collect organic matter flowing out of the liquid culture medium; The conical portion is formed at the bottom of the tank and is configured to separate the organic matter and the liquid culture medium; The end of the conical portion forms an organic matter outlet for outputting the separated organic matter; the tank body is also connected to the conditioning device through a circulation pipe for re-inputting the separated liquid culture medium into the conditioning device.

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