JP2012080839A - Culture system of alga capable of being industrially cultivated - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a culture system of alga which sufficiently increases the yield of quality alga, and can achieve industrial mass culture of alga.SOLUTION: The culture system of alga capable of being industrially cultivated includes: a light transmission pipe of a pipe type photosynthesis unit; a liquid storage unit; a power liquid feeder; a jet-type oxygen discharge unit; and a communicating tube. The liquid storage unit is communicated with an exit part of the light transmission pipe, and is provided with an exhaust port, to which a carbon dioxide gas supply pipe is connected. The power liquid feeder is connected to a terminal of the liquid storage unit, and has a feed liquid tube. The jet-type oxygen discharge unit is formed in a hollow cylindrical body, and has a liquid injection opening, an upper exhaust port, and a hollow tube. The liquid injection opening is communicated with an exit end of the liquid feeding tube. The hollow tube is extended downward of the upper exhaust port. The communication tube has an entrance end communicated with the jet oxygen discharge means, and an exit end connected to the light transmission pipe.

Description

TECHNICAL FIELD The present invention relates to an industrially cultivatable algal body culture system and an algal body culture method using the same, and in particular, by circulating a culture solution of algal bodies through a pipe type culture system, photosynthesis is performed on the algal bodies. The present invention relates to a culture system for algal bodies that enables repeated industrial culture, and a method for culturing algal bodies using the same.

Algae such as Spirulina, Haematococcus Pluvialis Flotow, and Botryococcus braunii are rich in nutrients beneficial to the human body, including proteins, minerals, vitamins, enzymes, antioxidants, and astaxanthin. In recent years, it has attracted attention as a nutritional food.

In addition, biodiesel fuel can already be extracted from algae, and it is expected to be used as an alternative fuel.

Algae is photosynthetic in the culture solution using a photosynthetic reaction system to generate nutrients required by algal cells, and promotes the growth and mass reproduction of cyanobacteria.

In addition, since oxygen generated by photosynthesis is dissolved in the culture solution, the dissolved oxygen concentration in the culture solution can be increased.

Patent Document 1 below discloses a photosynthetic reaction system and a photosynthetic reaction method for algal microorganisms. In the photosynthesis reaction system for algal microorganisms disclosed in Patent Document 1, algae grow by performing photosynthesis using a photosynthesis reaction unit that is a transparent pipe path.

JP 2007-319039 A

However, the system and method described in Patent Document 1 are not suitable for industrial mass production because the amount of alga bodies produced is small. Therefore, a method capable of efficiently generating algal bodies has been demanded.

This invention is made | formed in view of the situation mentioned above, The objective is to provide the culture system of the alga body which makes it possible to culture an algal body industrially in large quantities.
Another object of the present invention is to provide a culture system for algal cells that makes it possible to culture high-quality algal cells with a high production volume.

In order to achieve the above object, an industrially cultivatable algal cell culture system according to the present invention includes a light transmission pipe of a pipe-type photosynthesis means, a liquid storage means, a power supply means, and a jet oxygen discharge. Means and a communication pipe means, and the liquid storage means has a larger volume than the light transmission pipe and communicates with an outlet portion of the light transmission pipe. The liquid storage means is provided with an exhaust port and connected with a carbon dioxide gas supply pipe. The power supply means has a liquid supply pipe and is connected to a terminal of the liquid storage means. The jet type oxygen discharge means is formed in a hollow cylinder and has a liquid injection port, an upper exhaust port, and a hollow tube. The liquid injection port communicates with the outlet end of the liquid feeding tube, and the hollow tube extends to the lower part of the upper exhaust port. The communication pipe means has an inlet end communicating with the jet oxygen discharging means and an outlet end connected to the light transmission pipe.

Preferably, a cell division means including a plurality of connected closed containers is further provided upstream of the light transmission pipe.

Preferably, each of the connected closed containers includes a plurality of small test tubes, one medium beaker, and one airlift photosynthesis device. The medium-sized beaker is connected downstream of a small test tube, the airlift-type light combiner is connected downstream of the medium-sized beaker, and the airlift-type light combiner receives irradiation from light source means.

Preferably, the jet type oxygen discharge means includes an oxygen discharge cylinder and a liquid collection part, and an air supply pipe extending to the liquid collection part is provided on a side wall of the oxygen discharge cylinder.

Preferably, the oxygen exhaust cylinder is further provided with an exhaust pipe, and the upper ends of the exhaust pipe and the hollow pipe are closed to be ventilated by a first vent semi-sealing element, so that the oxygen exhaust cylinder is externally provided. Prevent impurities from entering the environment. The opening of the air supply pipe is closed so as to be ventilated by a second ventilation semi-sealing element provided on the oxygen discharge cylinder side, thereby preventing impurities from entering the oxygen discharge cylinder from the outside environment.

Preferably, the liquid storage means is a pipe, the pipe diameter is larger than the diameter of the light transmission pipe, and a collecting valve is provided at the bottom.

According to the present invention, the liquid storage means is arranged behind the outlet end of the light transmission pipe, and the liquid storage means is provided with an exhaust port for discharging oxygen generated by photosynthesis, and further used for photosynthesis. A carbon dioxide gas supply pipe for supplying ₂ is connected. The algal bodies and the culture solution circulated in the system repeatedly enter the light transmission pipe, perform photosynthesis, continue to grow and grow in the liquid storage means, and can greatly increase production.

Before putting the algal body into the light transmission pipe, as a pretreatment, the algal body is put into a cell division means, and the rate of algal cell division is promoted, so that a sufficient amount of algal cells can be obtained, Algal bodies with increased amounts can be obtained.

The algal bodies and the culture solution with the increased amount of organisms are put into a light transmission pipe, and by repeating photosynthesis, the algal bodies grow and proliferate and become algal bodies that can be collected.

Thus, the yield of algal bodies can be improved by two stages of algal cell division and growth.

The connected sealed containers include containers of different sizes, such as a small test tube, a medium beaker, and an airlift photosynthesis device. Algae body divides cells in stages and contributes to increasing the speed of cell division by flowing through a connected closed container and performing photosynthesis.

Furthermore, by blowing carbon dioxide from the gas blowing device into the airlift photosynthesis device, a flow is generated in the culture solution, and the algal bodies in the culture solution can be uniformly dispersed in the culture solution. It facilitates cell division and increases the amount of organisms.

In addition, when air is supplied and exhausted by the jet type oxygen discharge unit, the jet type oxygen discharge unit is prevented from being contaminated by impurities from the outside by the first ventilation semi-sealing element and the second ventilation semi-sealing element. Thereby, it can grow and proliferate without algae being contaminated.

It is a flowchart of the process of culture | cultivating an algal body using the culture system of the algal body which can be cultured industrially which concerns on this invention. It is a schematic diagram which shows the culture system of the algal body which can be cultured industrially which concerns on 1st Embodiment of this invention, and shows the case where the liquid storage means 2 is piping. It is a schematic diagram which shows the modification of the culture system of the alga body which can be cultured industrially which concerns on 1st Embodiment of this invention, Comprising: The liquid storage means 2 'shows the case where it is an open-type large capacity tank. It is a schematic diagram which shows the cell division means of the culture system of the algal body which can be cultured industrially based on this invention. It is a schematic diagram which shows the culture system of the alga body which can be cultured industrially which concerns on 2nd Embodiment of this invention. It is a schematic diagram which shows the culture system of the algal body which can be cultured industrially which concerns on 3rd Embodiment of this invention. It is a schematic diagram which shows the culture system of the algal body which can be cultured industrially which concerns on 4th Embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the technical scope of the present invention is not limited by these embodiments, and can be implemented in various forms without changing the gist of the invention.

(First embodiment)
As shown in FIG. 1, FIG. 2A, FIG. 2B and FIG. 3, an industrially cultivatable algal cell culture system according to the present invention comprises a light transmission pipe 1 of a pipe type photosynthesis means, a liquid storage means 2, Power supply means 3, jet type oxygen discharge means 4, and communication pipe means 5 are provided.

In addition, the algal cell culture system according to the present invention preferably further includes a cell division means 6.

By introducing the algal cells and the culture solution into the cell division means 6 as a pretreatment, it is possible to generate algal cells having an increased amount of organisms (biomass) in advance. Algal bodies and oxygen after photosynthesis are generated in the culture solution by putting the algal bodies with the increased amount of organisms and the culture solution into the light transmission pipe 1 and performing photosynthesis.

Subsequently, the culture solution after photosynthesis and the algal bodies contained therein are transferred to the liquid storage means 2, and the culture liquid and the algal bodies contained therein are further transferred to the jet oxygen discharge means 4 by the power feeding means 3. Transport.

In the jet type oxygen discharge means 4, oxygen in the culture solution is discharged and carbon dioxide is supplied to the culture solution to replenish the carbon dioxide consumed in photosynthesis.

The culture solution and the algal bodies contained therein are transferred to the communication pipe means 5, where physiological adjustment is performed for a while.

Thereafter, the algal bodies after photosynthesis are transferred again to the light transmission pipe 1 and the series of steps is repeated.

By repeating a series of procedures in this way, the alga body grows and proliferates to become an alga body that can be collected.

Finally, the algal bodies again flow into the liquid storage means 2 and are stored therein, where they grow and continue to grow in large quantities and can be collected.

The supplementary light irradiation means 11 and the fountain means 12 may be disposed around the light transmission pipe 1. In addition, it is preferable to provide the inlet 101 on the upstream side of the light transmission pipe 1 because alga bodies and culture solution can be easily injected into the light transmission pipe 1. The light transmission pipe 1 is spirally arranged in the extending direction from the upstream side to the downstream side, and the algal bodies and the culture solution injected from the injection port 101 flow through the light transmission pipe 1 so as to draw a spiral.

The supplementary light irradiation means 11 may be a fluorescent lamp or an LED lamp. By irradiating the light transmission pipe 1 with the light emitted from the supplementary light irradiation means 11, sufficient light intensity required for photosynthesis can be obtained. The position where the supplementary light irradiating means 11 is provided is not particularly limited. What is necessary is just to provide suitably in the vicinity. In addition, since the light intensity required for photosynthesis changes with kinds of algae, the light beam emission angle and light intensity of the supplementary light irradiation means 11 are changed as needed.

The fountain means 12 may be manually operated or guided. By applying water sprayed from the fountain means 12 to the light transmission pipe 1, the temperature of the culture solution in the light transmission pipe 1 can be lowered and protected from the heat by the supplementary light irradiation means 11.

In the present embodiment, the fountain means 12 is disposed above the light transmission pipe 1, but the position where the fountain means 12 is provided is not particularly limited, and the temperature of the light transmission pipe 1 is a temperature necessary for the photosynthesis of the algal bodies. What is necessary is just to provide suitably in the vicinity of the light transmission piping 1 so that it may become.

In addition, since the temperature required for photosynthesis changes with the kind of alga bodies, the temperature of a culture solution is adjusted with the fountain means 12 as needed.

The liquid storage means 2 has a larger volume than the light transmission pipe 1 and communicates with the outlet of the light transmission pipe 1. The liquid storage means 2 is provided with an exhaust port 21 and connected with a carbon dioxide gas supply pipe 22.

Oxygen generated by the photosynthesis is released from the exhaust port 21 to the outside, and CO ₂ necessary for photosynthesis is replenished into the culture solution from the carbon dioxide gas supply pipe 22. Thereby, algal bodies can continue to grow and grow in the liquid storage means 2.

The liquid storage means 2 may be a pipe as shown in FIG. 2A, and the liquid storage means 2 'may be an open large-capacity tank as shown in FIG. 2B.

In the case of an open tank, a lid for covering the opening of the liquid storage tank is provided on the tank in order to prevent impurities from entering the culture solution from the outside. As for the portion other than the lid, an exhaust port 21 ′ and a carbon dioxide gas supply pipe 22 ′ are provided in the same manner as the liquid storage means 2.

The liquid storage means 2 is more preferably a pipe from the viewpoint of hygiene such as hermeticity and prevention of impurity contamination of algal bodies. In that case, the tube body is made U-shaped and provided on the ground. At that time, the pipe diameter needs to be larger than the pipe diameter of the light transmission pipe 1. Moreover, you may provide the collection valve 23 for collecting an algal body in the bottom part of the liquid storage means 2 which is piping.

Since the culture fluid has a high flow rate in the light transmission pipe 1, the amount of light received increases and the growth rate of the algal bodies is also rapid. On the other hand, when it flows into the liquid storage means 2, the flow rate becomes gentle, and the algal bodies aggregate to form aggregates. Aggregated alga bodies undergo cell division in the liquid storage means 2 and grow in large quantities.

As shown in FIGS. 2A and 2B, the power supply means 3 having a liquid supply pipe 31 and a pressurized liquid supply pump 32 is connected to the terminal of the liquid storage means 2. The liquid feed pipe 31 has an inlet end connected to the liquid storage means 2 and an outlet end connected to the jet oxygen discharge means 4 described below. The culture solution in the liquid feeding tube 31 is pressurized by the pressurized liquid feeding pump 32 and transferred to the jet oxygen discharge means 4.

The jet type oxygen discharge means 4 includes an oxygen discharge cylinder 41 and a liquid collecting part 42 attached to each other. A hollow cylinder is formed, and a liquid injection port 411, an upper exhaust port 412, and a hollow tube 413 are provided. The liquid injection port 411 communicates with the outlet end of the liquid feeding pipe 31. The upper exhaust port 412 opens to the upper part of the oxygen exhaust cylinder 41, and a hollow tube 413 extends from the lower part of the upper exhaust port 412. The oxygen exhaust cylinder 41 may further be provided with an exhaust pipe 43. The exhaust pipe 43 is formed with a tapered enlarged portion 431 whose inner diameter is gradually increased toward the lower end. Further, an air supply pipe 44 extending to the liquid collecting part 42 may be provided on the side wall of the oxygen discharge cylinder 41.

When the culture liquid transferred by the power feeding means 3 with the above-described configuration flows into the liquid collection part 42 from the liquid injection port 411, it is jetted out and collides with the hollow tube 413. As a result, the culture solution is rotated to discharge oxygen gas from the upper exhaust port 412.

In addition, when the culture solution falls, it collides with the enlarged portion 431, scatters the culture solution, and further promotes the discharge of oxygen gas. Thereafter, the culture solution collects and sinks at the bottom of the liquid collection part 42. In addition, if the carbon dioxide required for the photosynthesis of the algal cells is supplied from the supply pipe 44 to the culture solution at the bottom of the liquid collecting unit 42, the ability to perform photosynthesis again on the algal cells in the culture solution can be enhanced. As described above, due to the configuration of the jet type oxygen discharge means 4, oxygen of the culture solution is discharged from the upper exhaust port 412 and carbon dioxide is replenished from the supply pipe 44.

The jet type oxygen discharge means 4 is preferably further provided with a first ventilation semi-sealing element 45 and a second ventilation semi-sealing element 46. By closing the openings at the upper ends of the exhaust pipe 43 and the hollow pipe 413 with the first ventilation semi-sealing element 45, it is possible to block the entry of impurities from the outside into the jet type oxygen discharge means 4.

Similarly, the opening of the air supply pipe 44 provided on the side wall of the oxygen discharge cylinder 41 is closed so as to be ventilated by the second ventilation semi-sealing element 46 provided on the oxygen discharge cylinder 41 side, thereby jet-type oxygen discharge. It is possible to block the entry of impurities from the outside into the means 4.

Further, if a filter or an air valve is used for the first ventilation semi-sealing element 45 and the second ventilation semi-sealing element 46, a gas such as oxygen or carbon dioxide can pass through and the jet type oxygen discharge means 4 can be connected to the external environment. Can be protected from impurities.

The communicating pipe means 5 has an inlet end communicating with the jet oxygen discharging means 4 and an outlet end connected to the light transmission pipe 1. The culture fluid flows from the jet type oxygen discharge means 4 into the communication pipe means 5 and then into the light transmission pipe 1 so that the algal bodies in the culture liquid can again undergo photosynthesis and proliferate.

As shown in FIG. 3, cell division means 6 is provided upstream of the light transmission pipe 1. As a pretreatment, an algal body is put into the cell division means 6 and the rate of algal cell division is promoted, whereby a sufficient number of algal cells can be obtained and an algal body with an increased amount of organisms can be obtained. .

The cell division means 6 has a plurality of connected closed containers 60. Each of the connected sealed containers 60 is provided with a plurality of small test tubes 61, one medium beaker 62, and one air lift type photocombiner 63. A medium-sized beaker 62 is connected downstream of the small test tube 61, and an airlift photosynthesis device 63 is connected downstream of the medium-sized beaker 62. In this way, the continuous connected sealed container 60 that is hermetically sealed is configured.

For each small test tube 61, the algal cells and the culture solution are added to divide the algal cells. After the algal cells have divided into a predetermined number of cells, the algal cells and the culture solution of each small test tube 61 are put into the medium beaker 62, and the algal cells are again divided. Finally, the algae bodies and the culture solution of the medium beaker 62 are put into the airlift photosynthesis device 63. The algal body is irradiated with light from the light source means 64 and performs photosynthesis. As described above, the algal cells are accelerated in cell division in each of the connected closed containers 60, and a sufficient number of algal cells can be obtained.

Each air lift type photocombiner 63 is provided with one light source means 64. The light source means 64 includes a first light source 641, a second light source 642, a power source 643, and an electric control device 644. The first light source 641 and the second light source 642 are electrically connected to the power source 643 via the electric control device 644 and receive supply of electricity necessary for lighting.

Further, by adjusting the luminance of the first light source 641 and the second light source 642 by the electric control device 644, the temperature of the algal bodies and the culture solution in the airlift photosynthesis device 63 can be controlled.

The first light source 641 is provided outside the air lift type light combiner 63, and the second light source 642 is provided inside the air lift type light combiner 63. Thereby, a light beam is sufficiently irradiated to the alga body, and the alga body can increase the amount of living organisms by photosynthesis.

The connected airtight container 60 may further include a gas blowing device 65. The gas blowing device 65 includes a first pipe 651, a second pipe 652, and a third pipe 653. The first pipe 651 is connected to each small test tube 61, and the second pipe 652 is each medium-sized beaker. 62 and the third pipe 653 is connected to each of the air lift type optical combiners 63.

The carbon dioxide generated by the gas blowing device 65 is blown into the small test tube 61, the medium beaker 62, and the airlift photosynthesis device 63 through the first pipe 651, the second pipe 652, and the third pipe 653, respectively, thereby culturing. Flow occurs in the liquid, and the algal bodies in the culture liquid are uniformly dispersed. Thereby, the growth and cell division of algal bodies are facilitated, and the algal bodies having an increased amount of organisms can be obtained.

Oxygen generated by photosynthesis is released to the outside from the air discharge pipe 631. On the other hand, the algal bodies and the culture solution with the increased amount of organisms flow through the merging pipe 66 and flow into the light transmission pipe 1 from the injection port 101 and continue photosynthesis.

As described above, the environment of the connected sealed container 60 that is connected and sealed contributes to cell division of the alga body, and an algal body with an increased amount of organisms is obtained in the culture solution. Can be improved.

(Second Embodiment)
Further, as a modification of the embodiment according to the present invention, a jet type oxygen discharge means and a communication pipe means can be designed.

FIG. 4 is a schematic diagram showing an industrially cultivated algal culture system according to a second embodiment of the present invention. The jet type oxygen discharge means 4 in the culture system according to the second embodiment uses a liquid collection part 42a having a relatively long main body, and the jet type oxygen discharge means 4 and the communication pipe means 5a are arranged in parallel. It differs from the first embodiment in that it is arranged side by side.

The communication pipe means 5a in the present embodiment includes a communication water inlet 51a, an expansion communication pipe 52a, and a communication water discharge pipe 53a. The bottom of the expansion communication pipe 52a is connected to the communication inlet 51a, and the upper part is connected to the communication outlet 53a. The communication inlet 51 a communicates with the liquid collection part 42. The communication outlet pipe 53 a is connected to the uppermost inlet of the light transmission pipe 1.

As a result, when the liquid level of the culture liquid accumulated in the liquid collecting part 42 becomes higher than the liquid level of the expansion communication pipe 52a, the culture liquid flows from the communication outlet pipe 53a to the light transmission pipe 1 due to the pressure, and the light is transmitted. Algae entering the pipe 1 is again photo-synthesized and grows and grows.

In this embodiment, the flow rate of the culture solution is slowed by using the liquid collecting part 42a having a long length and the large-diameter enlarged communication pipe 52a, and the culture liquid flows into the light transmission pipe 1 from the communication pipe means 5a. By extending the time to perform, there is sufficient time for the algal bodies to perform physiological regulation, thereby eliminating the physiological obstacles caused by the power feeding means 3 and the jet type oxygen discharging means 4, and the quality is good. Algae can be obtained.

(Third embodiment)
FIG. 5 is a schematic diagram showing an industrially cultivatable algal cell culture system according to a third embodiment of the present invention.

The quantity of the communication pipe means 5b can be changed as necessary. For example, the continuous communication pipe means 5b circulated to each other may be configured by connecting two or more communication pipe means 5b so as to circulate each other. That is, a continuous expansion communication pipe 52b is constituted by a plurality of expansion communication pipes 52b arranged side by side, and the continuous expansion communication pipe 52b communicates with the jet oxygen discharge means 4 and the light transmission pipe 1. Is done.

An opening / closing valve member 71 for connecting the continuous expansion communication pipes 52b to each other is further provided below the two sets of continuous expansion communication pipes 52b.

A gas path 72 is connected to each expansion communication pipe 52b. Further, the pipes connected to the upper part of the two sets of continuous expansion communication pipes 52b are curved downward at the tips and opened downward to prevent oxygen discharge and impurities from entering. An oxygen discharge port 54b is formed.

The position where the gas path 72 is provided is preferably provided according to the flow direction of the algal bodies. For example, when the algal bodies flow from the lower part, they are provided at the lower part of the expansion communication pipe 52b. What is necessary is just to provide in the upper part of the type | formula communication pipe | tube 52b.

With such a continuous expansion communication pipe 52b, the algal bodies introduced from the jet oxygen discharge means 4 can be continuously physiologically adjusted.

Further, by blowing carbon dioxide gas from the gas path 72 into the continuous communication pipe means 5b circulated to each other in this way, a flow is generated in the culture solution, and the algal bodies in the culture solution are uniformly dispersed. Thereby, the growth of algal bodies and cell division can be promoted, and the amount of organisms can be increased.

The algal bodies that have completed the growth through circulation of the entire system can be discharged and collected by the on-off valve member 71.

When the continuous communication pipe means 5b according to the present embodiment is compared with that of the above-described embodiment, there is an effect that the collection can be performed once a day or once every two days without stopping the operation of the system. Expected and can be collected continuously in large quantities before the next wash.

(Fourth embodiment)
In order to achieve the purpose of industrially mass-producing algal bodies, it is common to increase the production volume by increasing the pipe diameter of the light transmission pipe 1 and increasing the length, but oxygen in the pipe The content is increased, which may result in suppressing the growth of algal bodies. In order to solve such a problem, in the fourth embodiment of the present invention shown in FIG. 6, a vent valve member 73 for exhausting air to the intermediate part of the light transmission pipe 1 is provided. The vent valve member 73 opens and closes the communication water pipe 731 that communicates with the light transmission pipe 1, the exhaust pipe 732 that communicates with the communication water pipe 731 and has an upper end higher than the light transmission pipe 1, and the communication water pipe 731. And an on-off valve 733 and a discharge valve 734. When the on-off valve 733 is opened, the culture solution flows into the exhaust pipe 732, but the upper end of the exhaust pipe 732 is higher than the light transmission pipe 1, so that the culture solution does not overflow from the exhaust pipe 732. On the other hand, oxygen can be discharged from the exhaust pipe 732 to the outside. Further, means for facilitating the release of oxygen to the outside may be provided. Furthermore, when the discharge valve 734 is open, the aged and necrotic algae can be discharged.

According to the industrially cultivatable algal cell culture system according to the present invention, the yield of algal cells can be greatly improved by the structural design, and an algal culture system suitable for industrial mass production can be provided. .

DESCRIPTION OF SYMBOLS 1 Light transmission piping 101 Inlet 11 Supplementary light irradiation means 12 Fountain means 2 Liquid storage means 21 Exhaust port 22 Carbon dioxide gas supply pipe 23 Collection valve 2 'Liquid storage means 21' Exhaust port 22 'Carbon dioxide gas supply pipe 3 Power transmission Liquid means 31 Liquid feed pipe 32 Pressurized liquid feed pump 4 Jet type oxygen discharge means 41 Oxygen discharge cylinder 411 Injection port 412 Upper exhaust port 413 Hollow pipes 42 and 42a Liquid collection part 43 Exhaust pipe 431 Enlarged part 44 Air supply pipe 45 First vent semi-sealing element 46 Second vent semi-sealing element 5 Communication pipe means 5a Communication pipe means 51a Communication inlet 52a Expandable communication pipe 53a Communication outlet pipe 5b Communication pipe means 52b Expandable communication pipe 54b Oxygen outlet 6 Cell division Means 60 Connected closed vessel 61 Small test tube 62 Medium beaker 63 Air lift type photocombiner 631 Air discharge pipe 64 Light source means 641 First light source 642 Second light source 643 Power supply 644 Electric control device 65 Gas blowing device 651 First pipe 652 Second pipe 653 Third pipe 66 Merge pipe 71 Open / close valve member 72 Gas path 73 Vent valve member 731 Communication water pipe 732 Exhaust pipe 733 Open / close valve 734 Discharge valve

Claims (10)

An industrially cultivated algal culture system,
A light transmission pipe of a pipe-type photosynthesis means;
Liquid storage means communicated with an outlet portion of the light transmission pipe, the liquid storage means having a larger volume than the light transmission pipe, provided with an exhaust port, and connected with a carbon dioxide gas supply pipe;
A power supply means having a liquid supply pipe and connected to a terminal of the liquid storage means; a jet type oxygen discharge means formed in a hollow cylindrical body; a liquid injection port; an upper exhaust port; A jet-type oxygen discharge means that extends from the upper exhaust port to the lower end of the upper exhaust port, and the liquid injection port communicates with an outlet end of the liquid supply tube.
A communication pipe means having an inlet end communicating with the jet oxygen discharging means and an outlet end connected to the light transmission pipe;
A culture system for industrially cultivated alga bodies, comprising: The industrially cultivatable alga according to claim 1, further comprising a cell division means provided upstream of the light transmission pipe, wherein the cell division means comprises a plurality of connected closed containers. Culture system. Each of the connected closed containers includes a plurality of small test tubes, one medium beaker, and one airlift photosynthesis device, and the medium beaker is connected downstream of the small test tubes, and the airlift photosynthesis device. The apparatus for cultivating alga bodies according to claim 2, wherein the cultivated alga body is connected to a downstream side of the medium-sized beaker, and the airlift photosynthesizer receives irradiation from a light source means. The light source means includes a first light source, a second light source, and a power source, and the first light source and the second light source are electrically connected to a power source, and the first light source is a part of the airlift type photocombiner. The industrially cultivatable algal cell culture system according to claim 3, wherein the system is provided outside, and the second light source is provided inside the airlift photosynthesis device. Further, a gas blowing device 65 is connected to the connected airtight container, and the gas blowing device has a first pipe, a second pipe, and a third pipe, and the first pipe is small in size. 4. The industrially culturable according to claim 3, wherein the second pipe is connected to each medium-sized beaker, and the third pipe is connected to each airlift type photosynthesis device. Algae culture system. A vent valve member for exhausting is provided in a substantially middle portion of the light transmission pipe, and the vent valve member is connected to the light transmission pipe, and is connected to the communication water pipe and at the upper end. The industrially cultivatable algae according to claim 1, comprising an exhaust pipe having a height higher than that of the light transmission pipe, an open / close valve for opening and closing the communication water pipe, and a discharge valve. Body culture system. Further, the communication pipe means is provided with a plurality of continuous expansion communication pipes arranged so as to circulate with each other, and a gas path is connected to each expansion communication pipe, and two of them are one set. The industrially cultivatable alga body according to claim 1, wherein an opening / closing valve member for connecting two sets of expansion communication pipes is provided at a lower portion of the expansion communication pipe. Culture system. 2. The industrially cultivatable according to claim 1, wherein the liquid storage means is a pipe, the pipe diameter is larger than that of the light transmission pipe, and a collecting valve is provided at the bottom. Algae culture system. The jet type oxygen discharge means is composed of an oxygen discharge cylinder and a liquid collection part attached to each other, and a side wall of the oxygen discharge cylinder is provided with an air supply pipe extending to the liquid collection part. The culture system for industrially cultivated alga bodies according to claim 1. Further, the oxygen discharge cylinder is provided with an exhaust pipe, and the upper ends of the exhaust pipe and the hollow pipe are closed so as to be ventilated by a first ventilation semi-sealing element, so that the oxygen discharge cylinder is externally surrounded And the opening of the air supply pipe is closed to be ventilated by a second ventilation semi-sealing element provided on the side of the oxygen discharge cylinder, so that the oxygen discharge cylinder is sealed from the external environment. The industrially cultivatable algal cell culture system according to claim 9, wherein:

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