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JP7325221B2 - biological breeding device - Google Patents

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JP7325221B2
JP7325221B2 JP2019095703A JP2019095703A JP7325221B2 JP 7325221 B2 JP7325221 B2 JP 7325221B2 JP 2019095703 A JP2019095703 A JP 2019095703A JP 2019095703 A JP2019095703 A JP 2019095703A JP 7325221 B2 JP7325221 B2 JP 7325221B2
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nutrient solution
pipeline
organisms
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growing
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JP2020188721A (en
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亮太 森
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株式会社レゾナック・ガスプロダクツ
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
    • Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures

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Description

本発明は、ファインバブル及び高濃度溶存ガスを用いた生物の育成装置に関する。 TECHNICAL FIELD The present invention relates to an apparatus for growing organisms using fine bubbles and high-concentration dissolved gas.

従来、ファインバブルによる微生物の成長促進を目的とした培養装置において、フィルターによって培養槽内の培養液を微生物と培養ろ過液に分離し、培養ろ過液にファインバブルを含有させ、培養槽に還流する装置が知られている。 Conventionally, in a culture apparatus for the purpose of promoting the growth of microorganisms by fine bubbles, the culture solution in the culture tank is separated into microorganisms and the culture filtrate by a filter, and the culture filtrate contains fine bubbles and is returned to the culture tank. device is known.

例えば特許文献１には、生物反応槽から培養液が導入されるとともに培養液を菌体とろ過液とに分離する菌体ろ過器を有し、ろ過液にファインバブルを含有させ、培養槽に還流する方法と装置が示されている。 For example, in Patent Document 1, a culture solution is introduced from a biological reaction tank and has a fungal cell filter that separates the culture solution into fungal cells and a filtrate. A method and apparatus for refluxing is presented.

また、特許文献２には、培養槽から抜き出されろ過器に供給される生物培養液を、マイクロナノバブルを含有するものとするマイクロナノバブル発生装置が示されている。 Further, Patent Document 2 discloses a micro-nano bubble generator in which micro-nano bubbles are contained in the biological culture solution extracted from the culture tank and supplied to the filter.

しかしながら、上記のいずれの装置も、微生物や菌体を含有する培養液をフィルターに流通させ、微生物、菌体と培養ろ過液に分離させる工程が発生している。この工程により、循環運転を続けているといずれフィルターの目詰まりが発生し、循環量が低下してしまう問題があった。 However, in any of the apparatuses described above, there is a step of causing a culture solution containing microorganisms and cells to flow through a filter to separate the microorganisms and cells from the culture filtrate. Due to this process, if the circulation operation is continued, clogging of the filter will eventually occur, and there is a problem that the circulation rate will decrease.

特開２００７－３１２６８９号公報Japanese Patent Application Laid-Open No. 2007-312689 特許第５９８５１１４号公報Japanese Patent No. 5985114

本発明は以上のような従来の欠点に鑑み、フィルターの目詰まり等を防止できるとともに、効率的に生物を育成することができる生物の育成装置を提供することを目的としている。 SUMMARY OF THE INVENTION In view of the conventional drawbacks as described above, it is an object of the present invention to provide an organism breeding apparatus capable of preventing filter clogging and the like and efficiently cultivating organisms.

上記目的を達成するために、本発明の請求項１に記載の生物の育成装置は、養液を貯留するとともに、前記養液内の生物を育成する育成槽と、前記育成槽内に設けられ、ファインバブル及び高濃度溶存ガスを含有させた前記養液のみが通過可能な開き目を有する放出膜により区切られた養液循環エリアと、前記養液に前記ファインバブル及び高濃度溶存ガスを添加する発生機と、前記養液循環エリアから前記発生機に前記養液を導く導入管路と、前記導入管路を通じて前記発生機に供給され、前記ファインバブル及び高濃度溶存ガスを含有させた前記養液を前記育成槽内の前記養液循環エリアへ還流させる還流管路と、前記導入管路又は前記還流管路に設けられ前記養液を循環させる循環ポンプを備え、前記養液循環エリアには前記生物が含まれず、前記放出膜を介して前記ファインバブル及び高濃度溶存ガスを含有させた前記養液を前記育成槽内の生物育成エリアに放出することにより、前記養液循環エリアから前記生物育成エリアに前記ファインバブル及び高濃度溶存ガスを含有させた前記養液が供給される一方、前記養液循環エリア内に生物含む固形物が侵入することを防止できることを特徴とする。 In order to achieve the above object, the apparatus for cultivating organisms according to claim 1 of the present invention provides a culturing tank for storing a nutrient solution and cultivating organisms in the nutrient solution, and a cultivating tank provided in the cultivating tank. , a nutrient solution circulation area separated by a release membrane having openings through which only the nutrient solution containing fine bubbles and high-concentration dissolved gas can pass; and adding the fine bubbles and high-concentration dissolved gas to the nutrient solution. an introduction pipeline for introducing the nutrient solution from the nutrient solution circulation area to the generator; a circulation pipe for returning a nutrient solution to the nutrient solution circulation area in the growth tank; does not contain the organisms, and releases the nutrient solution containing the fine bubbles and high-concentration dissolved gas through the release membrane to the organism-growing area in the cultivating tank, from the nutrient-solution circulation area to the While the nutrient solution containing the fine bubbles and the high-concentration dissolved gas is supplied to the organism-growing area, it is possible to prevent solid matter including organisms from entering the nutrient-solution circulation area.

請求項２に記載の生物の育成装置の前記養液循環エリア内に絞り部を設けたことを特徴とする。 The apparatus for growing organisms according to claim 2 is characterized in that a throttling part is provided in the nutrient solution circulation area.

請求項３に記載の生物の育成装置の前記導入管路と前記還流管路を接続する少なくとも１つの流路切替管路を更に備え、前記導入管路、前記還流管路又は前記流路切替管路の少なくともいずれかに仕切弁を設けたことを特徴とする。 4. The apparatus further comprises at least one channel switching pipeline that connects the introduction pipeline and the return pipeline of the organism growing apparatus according to claim 3, wherein the introduction pipeline, the return pipeline, or the flow path switching pipeline. A sluice valve is provided in at least one of the passages.

請求項４に記載の生物の育成装置の前記放出膜は、前記育成槽内の空間を上下に分割するように設けられていることを特徴とする。 In the apparatus for cultivating organisms according to claim 4, the release film is provided so as to divide the space in the cultivating tank into upper and lower parts.

請求項５に記載の生物の育成装置の前記放出膜は、筒状に形成されていることを特徴とする。 The apparatus for growing organisms according to claim 5 is characterized in that the release membrane is formed in a cylindrical shape.

請求項６に記載の生物の育成装置の前記放出膜は、連結された複数個の筒状に形成されていることを特徴とする。 The apparatus for growing organisms according to claim 6 is characterized in that the release membrane is formed in a plurality of connected cylinders.

請求項７に記載の生物の育成装置の前記育成槽は、前記養液が循環する管状に形成され、前記放出膜は、管状に形成されて前記管状の育成槽内に配置され、前記放出膜の一端部に前記導入管路が接続され、他端部に前記還流管路が接続されていることを特徴とする。 The cultivating tank of the apparatus for cultivating organisms according to claim 7 is formed in a tubular shape through which the nutrient solution circulates, and the release membrane is formed in a tubular shape and arranged in the tubular cultivating tank. The introduction conduit is connected to one end of the and the return conduit is connected to the other end.

以上の説明から明らかなように、本発明にあっては次に列挙する効果が得られる。
（１）請求項１に記載の各発明においては、放出膜を介して、ファインバブル及び高濃度溶存ガスを含有した養液が生物育成エリアへ供給されるので、バブルと養液の比重差による浮上および拡散効果により、養液循環エリアから生物育成エリアへ供給される一方、放出膜により固形物（生物や微細なゴミ等）が生物育成エリアから養液循環エリアに混入することを防止できる。
したがって、微生物によるファインバブルまたは高濃度溶存ガス放出膜の目詰を防止することができる。
（２）請求項２に記載の発明も前記（１）と同様な効果が得られるとともに、絞り部を設けてこの絞り部を通過する流量を少なくすることで、絞り部の１次側のファインバブル及び高濃度溶存ガスを含有する養液が生物を育成するエリアへ放出膜を介して移行する流量、及び生物育成エリアから絞り部の２次側へ放出膜を介して養液が移行する流量を増加させることができる。
したがって、育成槽の生物を育成するエリア内のファインバブル及び高濃度溶存ガス濃度を高く維持することができる。
（３）請求項３に記載の発明も前記（１）～（２）と同様な効果が得られるとともに、養液を育成槽内の養液循環エリアへ還流させる管路と、仕切弁、及び流路切替管路を備えるので、育成槽内の生物育成エリア内に均一にファインバブルまたは高濃度溶存ガス供給することができる。
（４）請求項４乃至請求項７に記載の発明も前記（１）～（３）と同様な効果が得られる。 As is clear from the above description, the present invention has the following effects.
(1) In each of the inventions described in claim 1, since the nutrient solution containing fine bubbles and high-concentration dissolved gas is supplied to the organism-growing area through the release membrane, the specific gravity difference between the bubbles and the nutrient solution Floating and diffusing effects allow solids (living organisms, fine dust, etc.) to be prevented from entering the nutrient circulation area from the nutrient circulation area, while the release film prevents solids (organisms, fine dust, etc.) from entering the nutrient circulation area.
Therefore, it is possible to prevent clogging of fine bubbles or high-concentration dissolved gas release membranes by microorganisms.
(2) The invention described in claim 2 can also provide the same effect as the above (1), and by providing a narrowed portion to reduce the flow rate passing through this narrowed portion, the fine pressure on the primary side of the narrowed portion The flow rate at which the nutrient solution containing bubbles and high-concentration dissolved gas migrates to the area for cultivating organisms via the release membrane, and the flow rate at which the nutrient solution migrates from the area for cultivating organisms to the secondary side of the throttle section via the release membrane. can be increased.
Therefore, it is possible to maintain high concentrations of fine bubbles and high-concentration dissolved gas in the area for growing organisms in the growth tank.
(3) The invention according to claim 3 also provides the same effects as those of (1) to (2) above, and further includes a pipeline for returning the nutrient solution to the nutrient solution circulation area in the growth tank, a gate valve, and Since the channel switching pipeline is provided, it is possible to uniformly supply fine bubbles or high-concentration dissolved gas to the organism growing area in the growing tank.
(4) The inventions described in claims 4 to 7 also provide the same effects as the above (1) to (3).

図１乃至図３は本発明の第１の実施形態を示す説明図である。
図４は本発明の第２の実施形態を示す説明図である。
図５は本発明の第３の実施形態を示す説明図である。
図６は本発明の第４の実施形態を示す説明図である。
第１の実施形態の生物の育成装置の概略説明図。 通常時の養液の流れ及び仕切弁の状態を示す参考説明図。 養液を逆流させる場合の仕切弁の状態を示す参考説明図。 第２の実施形態の生物の育成装置の概略説明図。 第３の実施形態の生物の育成装置の概略説明図。 第４の実施形態の生物の育成装置の概略説明図。 1 to 3 are explanatory diagrams showing the first embodiment of the present invention.
FIG. 4 is an explanatory diagram showing a second embodiment of the present invention.
FIG. 5 is an explanatory diagram showing a third embodiment of the present invention.
FIG. 6 is an explanatory diagram showing a fourth embodiment of the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS The schematic explanatory drawing of the breeding apparatus of the living thing of 1st Embodiment. FIG. 4 is a reference explanatory diagram showing the flow of the nutrient solution and the state of the sluice valve in a normal state; FIG. 4 is a reference explanatory diagram showing the state of the sluice valve when the nutrient solution is allowed to flow back. FIG. 10 is a schematic explanatory diagram of a creature growing apparatus according to a second embodiment; FIG. 10 is a schematic explanatory diagram of a creature growing apparatus according to a third embodiment; FIG. 11 is a schematic explanatory diagram of a creature growing apparatus according to a fourth embodiment;

以下、図面に示す本発明を実施するための形態により、本発明を詳細に説明する。
図１乃至図３に示す本発明を実施するための第１の形態において、１は本発明のファインバブル及び高濃度溶存ガスを用いた生物の育成装置である。
なお、説明の便宜上、循環管路１４及び養液循環エリア５を循環し、ファインバブル及び高濃度溶存ガスを含有した養液２を循環養液２Ａという。 BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail by means of embodiments for carrying out the present invention shown in the drawings.
In the first embodiment for carrying out the present invention shown in FIGS. 1 to 3, 1 is an apparatus for growing organisms using fine bubbles and high-concentration dissolved gas of the present invention.
For convenience of explanation, the nutrient solution 2 that circulates through the circulation pipe 14 and the nutrient solution circulation area 5 and contains fine bubbles and high-concentration dissolved gas is referred to as a circulating nutrient solution 2A.

この生物の育成装置１は、図１に示すように、養液２を貯留するとともに、前記養液２内の生物を育成する育成槽３と、前記育成槽３内に設けられ、ファインバブル及び高濃度溶存ガスを含有させた循環養液２Ａが通過可能な放出膜４により区切られた養液循環エリア５及び生物育成エリア１０と、前記養液循環エリア５の養液を循環させる循環管路１４と、この循環管路１４に設けられ、前記養液２に前記ファインバブル及び高濃度溶存ガスを添加する発生機６と、循環管路１４に設けられ前記循環養液２Ａを循環させる循環ポンプ９とで構成されている。 As shown in FIG. 1, this organism-raising apparatus 1 includes a cultivating tank 3 for storing a nutrient solution 2 and cultivating organisms in the nutrient solution 2; A nutrient solution circulation area 5 and an organism growth area 10 separated by a release film 4 through which a circulating nutrient solution 2A containing a high-concentration dissolved gas can pass, and a circulation pipeline for circulating the nutrient solution in the nutrient solution circulation area 5 14, a generator 6 provided in the circulation line 14 for adding the fine bubbles and high-concentration dissolved gas to the nutrient solution 2, and a circulation pump provided in the circulation line 14 for circulating the circulating nutrient solution 2A. It is composed of 9.

循環管路１４は、前記養液循環エリア５から前記発生機６に前記循環養液２Ａを導く導入管路７と、該導入管路７を通じて前記発生機６に供給され、ファインバブル及び高濃度溶存ガスを含有させた前記循環養液２Ａを前記育成槽３内の前記養液循環エリア５へ還流させる還流管路８とで構成されており、循環ポンプ９は、前記導入管路７又は還流管路８のいずれに設けてもよい。 The circulation pipeline 14 includes an introduction pipeline 7 that guides the circulating nutrient solution 2A from the nutrient solution circulation area 5 to the generator 6, and the nutrient solution 2A is supplied to the generator 6 through the introduction pipeline 7 to provide fine bubbles and high concentration. and a circulation pipe 8 for returning the circulating nutrient solution 2A containing dissolved gas to the nutrient solution circulation area 5 in the growth tank 3. The circulation pump 9 is connected to the introduction pipe 7 or the reflux It may be provided in any of the pipelines 8 .

養液２は、育成対象の生物に適した液体が用いられ、例えば、本実施形態では藻類の微生物を育成しており、淡水又は海水等が用いられている。その他にも水草を育成する場合には淡水、水の中の有機物を分解する微生物を育成する場合には、有機物を多量に含んだ液体等が用いられる。 As the nutrient solution 2, a liquid suitable for the organism to be grown is used. For example, in the present embodiment, algae microorganisms are grown, and fresh water, seawater, or the like is used. In addition, fresh water is used for growing aquatic plants, and a liquid containing a large amount of organic matter is used for growing microorganisms that decompose organic matter in water.

また、この育成槽３で育成される生物は、動植物及び微生物（好気性微生物、嫌気性微生物、藻類等）を含むものである。
ファインバブルにされるガス及び高濃度溶存ガスも、育成する生物に合わせて適宜適切な物質が用いられる。本実施形態では、藻類の微生物を育成するため、二酸化炭素を用いている。 Also, the organisms grown in the growth tank 3 include animals, plants, and microorganisms (aerobic microorganisms, anaerobic microorganisms, algae, etc.).
For the gas to be made into fine bubbles and the high-concentration dissolved gas, appropriate substances are used according to the organisms to be raised. In this embodiment, carbon dioxide is used to grow algae microorganisms.

育成槽３は、液体を保持できるとともに導入管路７や還流管路８が接続可能な容器で、その大きさや材質等は育成する生物や育成規模に応じて適宜変更できるものである。 The growth tank 3 is a vessel capable of holding a liquid and connectable to the introduction conduit 7 and the return conduit 8, and its size, material, etc. can be appropriately changed according to the organisms to be cultivated and the scale of cultivation.

養液循環エリア５は、前記育成槽３内に設けられており、育成槽３とは放出膜４を介して区切られた状態で設けられており、この養液循環エリア５には前記生物が含まれない。本実施形態では、育成槽３の中心部から下部付近の内部の空間を上下に分割するように放出膜４が設けられており、この放出膜４の下方が養液循環エリア５となる。この放出膜４は、本実施形態では、微生物を育成するものであるため、その大きさに合わせて開き目が１～５０μｍで、エリアを上下に区切るためにプリーツ型やシート型のものを用いている。 The nutrient solution circulation area 5 is provided in the growth tank 3 and is separated from the growth tank 3 via the release film 4, and the organisms are contained in the nutrient solution circulation area 5. Not included. In this embodiment, a release membrane 4 is provided so as to vertically divide the inner space near the bottom from the center of the growth tank 3 , and the area below the release membrane 4 becomes a nutrient solution circulation area 5 . In the present embodiment, the release film 4 is for cultivating microorganisms, so it has openings of 1 to 50 μm according to its size, and a pleated or sheet type is used to divide the area into upper and lower areas. ing.

一方、この放出膜４よりも上方のエリアは、養液２及び育成対象の生物が存在する生物育成エリア１０となる。 On the other hand, the area above the release film 4 becomes an organism growing area 10 where the nutrient solution 2 and organisms to be grown exist.

この放出膜４は、ファインバブル及び養液２（高濃度溶存ガスを含有した循環養液２Ａを含む）のみが通過できる大きさの開き目とすることにより、放出膜４により生物等（生物や固形物等）が生物育成エリア１０から養液循環エリア５に混入することを防止できる。すなわち、放出膜４を介して前記ファインバブル及び高濃度溶存ガスを含有させた養液２Ａを育成槽３内の生物育成エリア１０に放出することにより、前記養液循環エリア５から前記生物育成エリア１０に前記ファインバブル及び高濃度溶存ガスを含有させた養液２Ａが供給される一方、前記養液循環エリア５内に生物含む固形物が侵入することを防止できる。 The release membrane 4 has openings large enough to allow only fine bubbles and the nutrient solution 2 (including the circulating nutrient solution 2A containing high-concentration dissolved gas) to pass through. Solid matter, etc.) can be prevented from entering the nutrient solution circulation area 5 from the organism growing area 10 . That is, by releasing the nutrient solution 2A containing the fine bubbles and the high-concentration dissolved gas through the release membrane 4 to the organism-growing area 10 in the growth tank 3, the organism-growing area is While the nutrient solution 2A containing the fine bubbles and the high-concentration dissolved gas is supplied to the nutrient solution circulation area 5, it is possible to prevent solid matter including organisms from entering the nutrient solution circulation area 5. FIG.

発生機６は、ファインバブルを発生させることができるものであれば、どのような機器を用いてもよく、ファインバブルの発生とガスを高濃度で循環養液２Ａに溶存させることができる機能の両方を有する発生機６を用いてもよいし、ファインバブル発生機とガス溶存装置とを別個に接続し、これらの機器を接続して発生機６としてもよい。
導入管路７は、養液循環エリア５から発生機６に循環養液２Ａを導く管路で、本実施形態においては一端部が育成槽３の養液循環エリア５に連通するとともに、他端部が発生機６に接続されている。
なお、本実施形態のように発生機６の上流側に循環ポンプ９を設ける場合には、この循環ポンプ９を介して導入管路７の他端部が発生機６に接続される。
還流管路８は、発生機６を通過し、ファインバブル及び高濃度溶存ガスを含有した循環養液２Ａを養液循環エリア５へ導く管路で、その一端部が発生機６に接続され、他端部が育成槽３の養液循環エリア５に連通している。 Any device may be used as the generator 6 as long as it can generate fine bubbles. A generator 6 having both may be used, or a fine bubble generator and a gas dissolving device may be connected separately and these devices may be connected to form the generator 6 .
The introduction pipe 7 is a pipe for introducing the circulating nutrient solution 2A from the nutrient solution circulation area 5 to the generator 6. In this embodiment, one end communicates with the nutrient solution circulation area 5 of the growth tank 3, and the other end section is connected to the generator 6 .
When the circulation pump 9 is provided upstream of the generator 6 as in the present embodiment, the other end of the introduction conduit 7 is connected to the generator 6 via the circulation pump 9 .
The return pipeline 8 is a pipeline that passes through the generator 6 and guides the circulating nutrient solution 2A containing fine bubbles and high-concentration dissolved gas to the nutrient solution circulation area 5, one end of which is connected to the generator 6, The other end communicates with the nutrient solution circulation area 5 of the growth tank 3 .

循環ポンプ９は、導入管路７に設けられ、これらの管路７、８及び発生機６を通過する循環養液２Ａを昇圧し、循環させるポンプである。この循環ポンプ９は、液体を昇圧し圧送できるものであれば、どのようなものを用いてもよい。ところで、本実施形態においては、導入管路７に循環ポンプ９を設けたが、使用するガスによっては還流管路８（発生機６の下流側）に循環ポンプ９を用いてもよく、循環ポンプ９は発生機６に内蔵されていてもよい。 The circulation pump 9 is provided in the introduction pipe 7 and is a pump that increases the pressure of the circulating nutrient solution 2A passing through these pipes 7 and 8 and the generator 6 and circulates it. Any pump may be used as the circulation pump 9 as long as it can pressurize and pump the liquid. By the way, in this embodiment, the circulation pump 9 is provided in the introduction pipe 7, but depending on the gas to be used, the circulation pump 9 may be used in the reflux pipe 8 (downstream of the generator 6). 9 may be built into the generator 6 .

また、本実施形態では、導入管路７と還流管路８（循環管路１４の発生機６よりも上流側と下流側）を接続する流路切替管路１１を更に備えている。この流路切替管路１１は、少なくとも１つ以上設けられ、本実施形態においては２つの流路切替管路１１が設けられている。 In addition, in this embodiment, a channel switching pipeline 11 that connects the introduction pipeline 7 and the return pipeline 8 (on the upstream side and the downstream side of the generator 6 of the circulation pipeline 14) is further provided. At least one or more flow path switching pipelines 11 are provided, and two flow path switching pipelines 11 are provided in this embodiment.

ところで、前記導入管路７、前記還流管路８又は前記流路切替管路１１の少なくともいずれかに仕切弁１２を設けて循環養液２Ａの流路を条件ごとに切り替えることができる。
本実施形態においては、導入管路７と還流管路８と流路切替管路１１の全てにそれぞれ仕切弁１２を設けている。
流路を切り替える条件は、時間でも良く、ファインバブル濃度などのパラメータを用いてもよい。 By the way, a gate valve 12 can be provided in at least one of the introduction conduit 7, the return conduit 8, and the flow switching conduit 11 to switch the flow path of the circulating nutrient solution 2A according to conditions.
In this embodiment, the inlet line 7, the return line 8, and the channel switching line 11 are all provided with gate valves 12, respectively.
The condition for switching flow paths may be time, or parameters such as fine bubble concentration may be used.

また、例えば図３に示すように、導入管路７及び還流管路８の仕切弁１２を閉状態、流路切替管路１１の仕切弁１２を開状態となるように仕切弁１２の開閉を行い、流路を切り替えることにより循環養液２Ａを通常とは逆方向に循環させることができ、放出膜４の逆洗浄を行うことができ、より保守を要さない時間を延長する（長期間、洗浄等の保守作業を不要にする）ことが可能になる。 For example, as shown in FIG. 3, the gate valves 12 are opened and closed so that the gate valves 12 of the introduction conduit 7 and the return conduit 8 are closed and the gate valves 12 of the flow switching conduit 11 are opened. By switching the flow path, the circulating nutrient solution 2A can be circulated in the opposite direction to the normal direction, and the release membrane 4 can be reverse washed, thereby extending the time that maintenance is not required (long term , maintenance work such as cleaning is unnecessary).

さらに、放出膜４から生物育成エリア１０内に均一にファインバブル及び高濃度溶存ガスを供給することができる。 Further, the fine bubbles and high-concentration dissolved gas can be uniformly supplied from the release membrane 4 into the organism growing area 10 .

前述した２つの流路切替管路１１は、還流管路８の仕切弁１２の下流側に一端部が接続され、導入管路７の仕切弁１２の下流側に他端部が接続された流路切替管路１１と、還流管路８の仕切弁１２の上流側に一端部が接続され、導入管路７の仕切弁１２の上流側に他端部が接続された流路切替管路１１の２つが設けられている。 The two flow-switching pipelines 11 described above have one end connected to the downstream side of the gate valve 12 of the return pipeline 8 and the other end connected to the downstream side of the gate valve 12 of the introduction pipeline 7. A path switching pipeline 11 and a flow path switching pipeline 11 having one end connected to the upstream side of the gate valve 12 of the return pipeline 8 and the other end connected to the upstream side of the gate valve 12 of the introduction pipeline 7. are provided.

このように流路切替管路１１及び仕切弁１２を設けることにより循環養液２Ａの流れを多様に調整することができ、前述のような効果を得ることができる。
ところで、養液循環エリア５の平均流速は５ｍ／ｓｅｃ以下、より好ましくは１ｍ／ｓｅｃ 以下としている。 By providing the channel switching pipeline 11 and the sluice valve 12 in this manner, the flow of the circulating nutrient solution 2A can be variously adjusted, and the effects described above can be obtained.
By the way, the average flow velocity in the nutrient solution circulation area 5 is set to 5 m/sec or less, more preferably 1 m/sec or less.

従来の方法ではフィルターに循環流体の全量が通過するのに対して、本発明では放出膜４に循環流体の全量が通過することはないため、非常に目詰まりが発生しにくい。 In the conventional method, the entire amount of the circulating fluid passes through the filter, whereas in the present invention, the entire amount of the circulating fluid does not pass through the release membrane 4, so clogging is extremely unlikely to occur.

ファインバブルまたは高濃度溶存ガスはバブルと養液２の比重差による浮上および拡散効果により、養液循環エリア５から前記育成槽３内の生物育成エリア１０へファインバブル及び高濃度溶存ガスを含有させた前記循環養液２Ａが供給される一方、放出膜４により固形物が生物育成エリア１０から養液循環エリア５および還流管路８および循環ポンプ９および発生機６内に混入することを抑えることができる。 The fine bubbles or high-concentration dissolved gas are caused to flow from the nutrient solution circulation area 5 to the organism-growing area 10 in the growth tank 3 by the floating and diffusion effect due to the difference in specific gravity between the bubbles and the nutrient solution 2. While the circulating nutrient solution 2A is being supplied, the release film 4 prevents solid matter from entering the nutrient solution circulation area 5, the return pipe 8, the circulation pump 9, and the generator 6 from the organism growing area 10. can be done.

ここで、「固形物」とは、育成対象の生物自身を含むものであり、その他にも生物が排出する固形の排出物や、ゴミ、ほこり等が含まれる。
このように構成された生物の育成装置１で例えば藻類等の微生物を育成（培養）する場合には、養液２として淡水又は海水を用い、ファインバブル及び高濃度溶存ガスとして二酸化炭素を用いる。 Here, the term "solid matter" includes the living organism itself to be raised, and also includes solid excretion, garbage, dust, and the like discharged by the living organism.
When microbes such as algae are grown (cultivated) in the organism growing apparatus 1 configured as described above, freshwater or seawater is used as the nutrient solution 2, and carbon dioxide is used as fine bubbles and high-concentration dissolved gas.

循環ポンプ９により循環養液２Ａを養液循環エリア５に循環させるとともに、発生機６を起動して二酸化炭素をファインバブルにするとともに、二酸化炭素を循環養液２Ａ中に高濃度で溶存させる。このファインバブル及び高濃度で二酸化炭素が溶存した循環養液２Ａは、放出膜４を通過して生物育成エリア１０に拡散される。
この拡散されたファインバブル及び高濃度で二酸化炭素が溶存した養液２により藻類等の微生物を効率よく育成することができる。 The circulating nutrient solution 2A is circulated through the nutrient solution circulation area 5 by the circulation pump 9, and the generator 6 is activated to turn the carbon dioxide into fine bubbles and dissolve the carbon dioxide in the circulating nutrient solution 2A at a high concentration. The fine bubbles and the circulating nutrient solution 2A in which carbon dioxide is dissolved at a high concentration pass through the release membrane 4 and diffuse into the organism growing area 10 .
Microorganisms such as algae can be efficiently grown by the diffused fine bubbles and the nutrient solution 2 in which carbon dioxide is dissolved at a high concentration.

［発明を実施するための異なる形態］
次に、図４乃至図６に示す本発明を実施するための異なる形態につき説明する。なお、これらの本発明を実施するための異なる形態の説明に当って、前記本発明を実施するための第１の形態と同一構成部分には同一符号を付して重複する説明を省略する。 [Different Modes for Carrying Out the Invention]
Next, different modes for carrying out the invention shown in FIGS. 4 to 6 will be described. In describing these different modes for carrying out the present invention, the same components as those in the first mode for carrying out the present invention are denoted by the same reference numerals, and duplicate descriptions are omitted.

図４に示す本発明を実施するための第２の形態において、前記本発明を実施するための第１の形態と主に異なる点は、筒状に形成され、その一端部に前記導入管路７が接続され、その他端部に前記還流管路８が接続された放出膜４Ａにするとともに、この養液循環エリア５内に絞り部１３を設けた点で、このような放出膜４Ａを用いた生物の育成装置１Ａにしても、前記本発明を実施するための第１の形態と同様な作用効果が得られる。 In the second embodiment for carrying out the present invention shown in FIG. 4, the main difference from the first embodiment for carrying out the present invention is that it is formed in a cylindrical shape and has the introduction pipe line at one end thereof. 7 is connected, and the other end of the release membrane 4A is connected to the return line 8, and the narrowed portion 13 is provided in the nutrient solution circulation area 5. Therefore, such a release membrane 4A is used. The same effects as those of the first embodiment for carrying out the present invention can be obtained with the above-described organism breeding apparatus 1A.

ところで、絞り部１３は、本実施形態においては、筒状の放出膜４Ａ内に形成されており、筒状の放出膜４Ａで区切られた放出膜４Ａの内側のエリアが養液循環エリア５となる。このように放出膜４Ａ内に絞り部１３を設けることにより、絞り部１３の１次側のファインバブル及び高濃度溶存ガスを含有する養液２が生物育成エリア１０へ放出膜４Ａを介して移行する流量、及び生物育成エリア１０から絞り部１３の２次側へ放出膜４Ａを介して循環養液２Ａが移行する流量を増加させることができる。この絞り部１３を設けることが望ましいが、必ずしも設ける必要はない。 By the way, in this embodiment, the constricted portion 13 is formed in the cylindrical release membrane 4A, and the area inside the release membrane 4A separated by the tubular release membrane 4A is the nutrient solution circulation area 5. Become. By providing the narrowed portion 13 in the release membrane 4A in this manner, the fine bubbles on the primary side of the narrowed portion 13 and the nutrient solution 2 containing the high-concentration dissolved gas migrate to the organism-growing area 10 via the release membrane 4A. and the flow rate of the circulating nutrient solution 2A moving from the organism-growing area 10 to the secondary side of the constricted portion 13 via the release membrane 4A can be increased. Although it is desirable to provide this narrowed portion 13, it is not always necessary to provide it.

また、絞り部１３は前記放出膜を連結させた際の配管、もしくは継手であってもよい。
図５に示す本発明を実施するための第３の形態において、前記本発明を実施するための第１の形態と主に異なる点は、互いに連結された複数個の筒状の放出膜４Ｂにした点で、このような放出膜４Ｂを用いた生物の育成装置１Ｂにしても、前記本発明を実施するための第１の形態と同様な作用効果が得られる。 Also, the constricted portion 13 may be a pipe or a joint for connecting the release membranes.
In the third mode for carrying out the present invention shown in FIG. 5, the main difference from the first mode for carrying out the present invention is that a plurality of tubular release membranes 4B connected to each other In this respect, even with the organism breeding apparatus 1B using such a release film 4B, the same effects as those of the first embodiment for carrying out the present invention can be obtained.

なお、本実施形態においては、この複数個の筒状の放出膜４Ｂで区切られた放出膜４Ｂの内側のエリアが養液循環エリア５となる。 In this embodiment, the area inside the release membranes 4B partitioned by the plurality of cylindrical release membranes 4B serves as the nutrient solution circulation area 5. As shown in FIG.

複数個の放出膜４Ｂは、どのように連結してもよく、例えば本実施形態のように４つの放出膜４Ｂを並列状に２つずつ連結してもよいし、複数個の放出膜４Ｂを直列状に連結してもよい。このように複数個の放出膜４Ｂが直接又は間接的に互いに連結されていればよい。 The plurality of release films 4B may be connected in any way. For example, four release films 4B may be connected in parallel two by two as in this embodiment, or a plurality of release films 4B may be connected in parallel. They may be connected in series. A plurality of release membranes 4B may be directly or indirectly connected to each other in this way.

図６に示す本発明を実施するための第３の形態において、前記本発明を実施するための第１の形態と主に異なる点は、前記循環養液２Ａが循環する管状に形成された育成槽３Ａを用いるとともに、前記育成槽３Ａ内に配置され、管状に形成されるとともに、その一端部に前記導入管路７が接続され、その他端部に前記還流管路８が接続された前記放出膜４Ｃにした点で、このような育成槽３Ａ及び放出膜４Ｃを用いた生物の育成装置１Ｃにしても、前記本発明を実施するための第１の形態と同様な作用効果が得られる。 In the third embodiment for carrying out the present invention shown in FIG. 6, the main difference from the first embodiment for carrying out the present invention is that the cultivator is formed in a tubular shape through which the circulating nutrient solution 2A circulates. The discharge is arranged in the cultivating tank 3A and is formed in a tubular shape, one end of which is connected to the introduction conduit 7, and the other end of which is connected to the return conduit 8. In view of the fact that the membrane 4C is used, the biological growing apparatus 1C using the cultivating tank 3A and the release membrane 4C can provide the same effects as those of the first embodiment for carrying out the present invention.

本実施形態においては、この管状の放出膜４Ｃで区切られた放出膜４Ｃの内側のエリアが養液循環エリア５となる。
なお、本発明の実施形態では流路切替管路や仕切弁を有する形態について説明したが、これらの構成を有さないものとしてもよい。 In this embodiment, the area inside the release membrane 4C partitioned by the tubular release membrane 4C serves as the nutrient solution circulation area 5. As shown in FIG.
In addition, although the embodiment of the present invention has been described as having a channel switching pipeline and a gate valve, it may not have these configurations.

また、本発明の実施形態で藻類の微生物を育成する場合について説明したが、育成する生物としては植物（水耕栽培）や養殖魚等にしてもよく、植物の場合には、養液を水耕養液とし、養殖魚を育成する場合には、淡水又は海水を養液として使用し、ファインバブル及び高濃度溶存ガスとして使用される気体を酸素や空気等にしてもよい。 In the embodiment of the present invention, the case of cultivating algae microorganisms has been described. When cultured fish are raised using a culture solution, fresh water or seawater may be used as the culture solution, and oxygen, air, or the like may be used as the gas used as the fine bubbles and the high-concentration dissolved gas.

本発明は生物を育成する産業に利用される。 INDUSTRIAL APPLICABILITY The present invention is used in industries for growing organisms.

１、１Ａ、１Ｂ、１Ｃ：生物の育成装置、
２、２Ａ：養液、 ３、３Ａ：育成槽、
４、４Ａ、４Ｂ、４Ｃ：放出膜、 ５：養液循環エリア、
６：発生機、 ７：導入管路、
８：還流管路、 ９：循環ポンプ、
１０：生物育成エリア、 １１：流路切替管路、
１２：仕切弁、 １３：絞り部、
１４：循環養液。 1, 1A, 1B, 1C: organism breeding apparatus,
2, 2A: nutrient solution, 3, 3A: growth tank,
4, 4A, 4B, 4C: release membrane, 5: nutrient solution circulation area,
6: generator, 7: introduction pipeline,
8: reflux line, 9: circulation pump,
10: Organism growing area, 11: Channel switching pipeline,
12: Gate valve, 13: Throttle,
14: Circulating nutrient solution.

Claims (7)

養液を貯留するとともに、前記養液内の生物を育成する育成槽と、前記育成槽内に設けられ、ファインバブル及び高濃度溶存ガスを含有させた前記養液のみが通過可能な開き目を有する放出膜により区切られた養液循環エリアと、前記養液に前記ファインバブル及び高濃度溶存ガスを添加する発生機と、前記養液循環エリアから前記発生機に前記養液を導く導入管路と、前記導入管路を通じて前記発生機に供給され、前記ファインバブル及び高濃度溶存ガスを含有させた前記養液を前記育成槽内の前記養液循環エリアへ還流させる還流管路と、前記導入管路又は前記還流管路に設けられ前記養液を循環させる循環ポンプを備え、
前記養液循環エリアには前記生物が含まれず、前記放出膜を介して前記ファインバブル及び高濃度溶存ガスを含有させた前記養液を前記育成槽内の生物育成エリアに放出することにより、前記養液循環エリアから前記生物育成エリアに前記ファインバブル及び高濃度溶存ガスを含有させた前記養液が供給される一方、前記養液循環エリア内に前記生物含む固形物が侵入することを防止できる生物の育成装置。 A growth tank for storing a nutrient solution and cultivating organisms in the nutrient solution; and openings provided in the cultivating tank through which only the nutrient solution containing fine bubbles and high-concentration dissolved gas can pass. a nutrient solution circulation area separated by a release membrane; a generator for adding the fine bubbles and high-concentration dissolved gas to the nutrient solution; a reflux pipeline for returning the nutrient solution containing the fine bubbles and the high-concentration dissolved gas, which is supplied to the generator through the introduction pipeline, to the nutrient solution circulation area in the growth tank; A circulation pump provided in the pipeline or the reflux pipeline for circulating the nutrient solution,
The nutrient solution circulation area does not contain the organisms, and the nutrient solution containing the fine bubbles and the high-concentration dissolved gas is discharged to the organisms-growing area in the growth tank through the release membrane, thereby While the nutrient solution containing the fine bubbles and the high-concentration dissolved gas is supplied from the nutrient solution circulation area to the organism growth area, it is possible to prevent the solids containing the organisms from entering the nutrient solution circulation area. Creature breeding device. 前記養液循環エリア内に絞り部を設けたことを特徴とする請求項１に記載の生物の育成装置。 2. The apparatus for growing organisms according to claim 1, wherein a throttle part is provided in said nutrient solution circulation area. 前記導入管路と前記還流管路を接続する少なくとも１つの流路切替管路を更に備え、前記導入管路、前記還流管路又は前記流路切替管路の少なくともいずれかに仕切弁を設けたことを特徴とする請求項１又は請求項２のいずれかに記載の生物の育成装置。 At least one channel switching pipeline connecting the introduction pipeline and the return pipeline is further provided, and at least one of the introduction pipeline, the return pipeline, or the flow switching pipeline is provided with a gate valve. 3. The apparatus for growing organisms according to claim 1 or 2, characterized in that: 前記放出膜は、前記育成槽内の空間を上下に分割するように設けられていることを特徴とする請求項１乃至請求項３のいずれかに記載の生物の育成装置。 4. The apparatus for cultivating organisms according to claim 1, wherein the release film is provided so as to vertically divide the space in the cultivating tank. 前記放出膜は、筒状に形成されていることを特徴とする請求項１乃至請求項３のいずれかに記載の生物の育成装置。 4. The apparatus for growing organisms according to any one of claims 1 to 3, wherein said release membrane is formed in a cylindrical shape. 前記放出膜は、複数個の筒状に形成されていることを特徴とする請求項１乃至請求項３のいずれかに記載の生物の育成装置。 4. The apparatus for growing organisms according to any one of claims 1 to 3, wherein said release membranes are formed in a plurality of cylinders. 前記育成槽は、前記養液が循環する管状に形成され、前記放出膜は、管状に形成されて前記管状の育成槽内に配置され、前記放出膜の一端部に前記導入管路が接続され、他端部に前記還流管路が接続されていることを特徴とする請求項１乃至請求項３のいずれかに記載の生物の育成装置。 The growth tank is formed in a tubular shape through which the nutrient solution circulates, the release membrane is formed in a tubular shape and placed in the tubular growth tank, and the introduction pipeline is connected to one end of the release membrane. 4. The apparatus for growing organisms according to any one of claims 1 to 3, wherein the return line is connected to the other end.
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