DE29819259U1 - Novel light entry in photo (bio) reactors - Google Patents

Novel light entry in photo (bio) reactors

Info

Publication number
DE29819259U1
DE29819259U1 DE29819259U DE29819259U DE29819259U1 DE 29819259 U1 DE29819259 U1 DE 29819259U1 DE 29819259 U DE29819259 U DE 29819259U DE 29819259 U DE29819259 U DE 29819259U DE 29819259 U1 DE29819259 U1 DE 29819259U1
Authority
DE
Germany
Prior art keywords
light
reactor
reactors
ring
lighting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE29819259U
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German (de)
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CSOEGOER ZSUZSA
Original Assignee
CSOEGOER ZSUZSA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CSOEGOER ZSUZSA filed Critical CSOEGOER ZSUZSA
Priority to DE29819259U priority Critical patent/DE29819259U1/en
Publication of DE29819259U1 publication Critical patent/DE29819259U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • C02F1/325—Irradiation devices or lamp constructions
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M21/00—Bioreactors or fermenters specially adapted for specific uses
    • C12M21/02—Photobioreactors
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M31/00—Means for providing, directing, scattering or concentrating light
    • C12M31/08—Means for providing, directing, scattering or concentrating light by conducting or reflecting elements located inside the reactor or in its structure
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
    • C12M41/06—Means for regulation, monitoring, measurement or control, e.g. flow regulation of illumination
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/32—Details relating to UV-irradiation devices
    • C02F2201/322—Lamp arrangement
    • C02F2201/3224—Units using UV-light guiding optical fibers
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/30—Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Zoology (AREA)
  • Wood Science & Technology (AREA)
  • Genetics & Genomics (AREA)
  • Biotechnology (AREA)
  • General Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Microbiology (AREA)
  • Sustainable Development (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Toxicology (AREA)
  • Analytical Chemistry (AREA)
  • Molecular Biology (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Description

Anmeldung eines Gebrauchsmusters „Neuartiger Lichteintrag in Photo-(Bio-)Reaktoren"Registration of a utility model "Novel light input into photo-(bio-)reactors"

BeschreibungDescription

NutzenTo use

Das als Gebrauchsmuster anzumeldende Produkt ermöglicht einen gleichmäßigen und flexiblen Lichteintrag für homogen gerührte (Bio-)Reaktor. Eine Beleuchtung ist notwendig bei allen Photo-Reaktionen (physikalische, chemische und biologische Vorgänge, die unter Lichteinwirkung passieren), z.B. bei der Kultivierung von Mikroalgen im Photobioreaktor oder bei der Abwasserreinigung mit UV-Licht u.a.. Eine homogene Beleuchtung ermöglicht die optimale Ausnutzung des Reaktors und die Vermeidung von Nebenprodukten, abweichenden Reaktionen sowie unerwünschte Gradienten. Da viele Reaktionen in einem bestimmten Wellenlängenbereich oder Intensitätsbereich des Lichtes stattfinden oder von dem zeitlichen Muster der Beleuchtung abhängen, ist es vorteilhaft, hier Möglichkeiten der Einflußnahme vorzusehen.The product, which is to be registered as a utility model, enables uniform and flexible light input for homogeneously stirred (bio)reactors. Lighting is necessary for all photo reactions (physical, chemical and biological processes that occur under the influence of light), e.g. when cultivating microalgae in a photobioreactor or when treating wastewater with UV light, etc. Homogeneous lighting enables optimal use of the reactor and the avoidance of by-products, deviating reactions and undesirable gradients. Since many reactions take place in a certain wavelength range or intensity range of the light or depend on the temporal pattern of the lighting, it is advantageous to provide options for influencing them.

Stand der TechnikState of the art

Die gängigste Art der Beleuchtung von Reaktoren ist es, einen Glaskörper von außen mit Glühlampen oder Leuchtstoffröhren zu beleuchten. Dies erfüllt aber nicht die Anforderungen bezüglich der Flexibilität und Homogenität der Beleuchtung.The most common way of lighting reactors is to illuminate a glass body from the outside with incandescent lamps or fluorescent tubes. However, this does not meet the requirements regarding flexibility and homogeneity of the lighting.

Es gibt auch innen beleuchtete Reaktoren, die meisten werden mit besonders geschützten Leuchtstoffröhren beleuchtet, was ebenfalls keinen flexiblen Lichteintrag erlaubt (Wellenlängenzusammensetzung fest, keine Fluktuationen, und schlechte Dimm-Möglichkeiten).There are also reactors that are illuminated from the inside, most of which are illuminated with specially protected fluorescent tubes, which also do not allow flexible light input (wavelength composition fixed, no fluctuations, and poor dimming options).

Plattenreaktoren ermöglichen zwar eine homogene, nicht aber eine flexible Ausleuchtung des Mediums.Plate reactors allow homogeneous but not flexible illumination of the medium.

Der einzige Reaktor, der eine höhere Homogenität und Flexibilität bei der Bestrahlung erlaubt, ist der von Prof. Buchholz aus Berlin entwickelte worden (Patent, Dissertation N. Gerbsch, TU Berlin, 1997). Dieser löst die Aufgabe mit einem Bündel von Lichtfasern, die von außen beleuchtet und gleichmäßig in den Reaktor hineingetaucht werden. Die Beleuchtung von außen ermöglicht es, mit Filtern das Licht zu verändern. Nachteilig ist an dieser Lösung, daß der Stoffübergang bei Begasung und Mischung beeinträchtigt werden kann und daß das Faserbündel anfällig für Störungen und schwer zu reinigen ist.The only reactor that allows greater homogeneity and flexibility in irradiation is the one developed by Prof. Buchholz from Berlin (patent, dissertation N. Gerbsch, TU Berlin, 1997). This solves the problem with a bundle of light fibers that are illuminated from the outside and evenly immersed in the reactor. The illumination from the outside makes it possible to change the light using filters. The disadvantage of this solution is that the mass transfer can be impaired during gassing and mixing and that the fiber bundle is susceptible to malfunctions and difficult to clean.

Beschreibung des neuen LichteintragesDescription of the new light entry

Unsere Lösung sieht eine außerhalb des Reaktors angebrachte Lichtquelle vor (jede fokussierbare Lampe, z.B. Argon-Schwefel-Lampe, die sonnenlichtähnliches Licht abgibt). Das Licht wird über einen Lichtleiter in den Reaktor eingebracht. Durch den Einsatz von Filtern, welche in den Strahlengang zwischen Lichtquelle und Lichtleiter gebracht werden, wird die spektrale Zusammensetzung des Lichtes und seine Intensität beliebig beeinflußt. An dieser Stelle werden mit Hilfe von Lochblenden auch Fluktuationen erzeugt.Our solution involves a light source mounted outside the reactor (any focusable lamp, e.g. an argon-sulfur lamp that emits light similar to sunlight). The light is introduced into the reactor via a light guide. By using filters that are placed in the beam path between the light source and the light guide, the spectral composition of the light and its intensity can be influenced as desired. At this point, fluctuations are also generated using pinhole diaphragms.

Kernstücke der Beleuchtungslösung sind ein Ringlicht und ein Beleuchtungskörper (s. Zeichnung).The core elements of the lighting solution are a ring light and a lighting fixture (see drawing).

Im Lichtleiter wird das Licht in den Reaktor eingeführt. Hier werden die einzelnen Fasern des Lichtleiters in einem Ringlicht nebeneinander angeordnet. Als Fasern können z.B. Glas- oder Quarzfasern verwendet werden, letztere erweitern das einzustrahlende das Spektrum um den UV-Bereich. Die Anzahl der Fasern bestimmt die Lichtleitkapazität wesentlich.The light is introduced into the reactor via the light guide. Here, the individual fibers of the light guide are arranged next to each other in a ring light. The fibers used can be glass or quartz fibers, for example, the latter extending the spectrum to include the UV range. The number of fibers largely determines the light-conducting capacity.

Auf dem Ringlicht ist ein Beleuchtungskörper befestigt, der gleichzeitig als Umwurfkörper in dem gerührten Reaktor fungiert. Der Beleuchtungskörper wird an der Stirnseite gleichmäßig angeleuchtet und gibt das Licht möglichst gleichmäßig über die Innen- und Außenseite an das umgebende Medium ab. Es werden wahlweise ein oder zwei Ringlichter benutzt, die an einer oder beiden Stirnseiten desA lighting fixture is attached to the ring light, which also functions as a tipping body in the stirred reactor. The lighting fixture is evenly illuminated on the front side and emits the light as evenly as possible over the inside and outside to the surrounding medium. Either one or two ring lights are used, which are attached to one or both front sides of the

Beleuchtungskörpers angebracht werden. Da die das Medium beleuchtenden Flächen verhältnismäßig groß und die radialen Abstände zur Wand klein sind, wird das Medium auf diese Weise gleichmäßig durchstrahlt.Since the surfaces illuminating the medium are relatively large and the radial distances to the wall are small, the medium is illuminated evenly in this way.

Als Beleuchtungskörper wird ein Glaskörper eingesetzt, der durch Sandstrahlen innen und außen angestrahlt ist und somit das von innen auf die Oberfläche fallende Licht gleichmäßig in das Medium abgibt. Derselbe Effekt wird wahlweise auch durch in Glas eingebrachte Partikel realisiert.A glass body is used as the lighting fixture, which is sandblasted inside and out, thus evenly emitting the light falling on the surface from the inside into the medium. The same effect can also be achieved by adding particles to the glass.

VorteileAdvantages

Die vorgestellte Beleuchtung ist in bezug auf die Lichtintensität, die Wellenlängenzusammensetzung und die Realisierbarkeit von Fluktuationen absolut flexibel. Sie erfüllt alle allgemeinen Anforderungen an Reaktoren und ist mit Materialien realisiert, die in der Reaktortechnik und insbesondere in der Biotechnologie üblich sind (V4A Stahl, Glas, O-Ringe). Sie ist einfach zu reinigen, chemisch beständig, stabil gegen Druckdifferenzen bis mindestens 2 bar, stabil bis 130°C und gibt keine toxischen Stoffe an die Umgebung ab, sondern zeigt inertes Verhalten gegenüber dem umgebenden Medium. Die Beleuchtung wird im Reaktor sterilisiert.The lighting presented is absolutely flexible in terms of light intensity, wavelength composition and the ability to implement fluctuations. It meets all general requirements for reactors and is made of materials that are common in reactor technology and in particular in biotechnology (V4A steel, glass, O-rings). It is easy to clean, chemically resistant, stable against pressure differences of up to at least 2 bar, stable up to 130°C and does not release any toxic substances into the environment, but shows inert behavior towards the surrounding medium. The lighting is sterilized in the reactor.

• · · · * ac• · · · * ac

1 Lichtquelle1 light source

2 optisches Lichtleiterbündel2 optical fiber bundle

3 fiberoptisches Ringlicht3 fiber optic ring light

4 Glasfaserring4 Fiberglass ring

5 Lichtstrahl5 Light beam

6 Beleuchtungs- und Umwurfkörper6 Lighting and throwing bodies

7 Sichtfenster7 viewing windows

8 Sonden (pO2, pH, T)8 probes (pO2, pH, T)

9 Rührer9 Stirrers

10 Gaszufuhr10 Gas supply

11 Gasabfuhr11 Gas discharge

Claims (1)

Hauptanspruch
Angemeldet wird ein neuartiger Lichteintrag in Photo-(Bio-)Reaktoren, gekennzeichnet dadurch, daß 1. der Lichteintrag aus folgenden Komponenten besteht: Lichtquelle, Lichtleiter, Ringlicht und Beleuchtungskörper 2. die Beleuchtungsquelle außerhalb des Reaktors angebracht ist 3. das Licht über mindestens einen Lichtleiter (Faserbündel) in den Reaktor eingebracht wird 4. die Lichtleiterfasern in dem Reaktor in mindestens einem Ringlicht aufgeteilt werden 5. auf dem Ringlicht ein Beleuchtungskörper aufgebracht ist Nebenansprüche
Lichteintrag in Photo-(Bio-)Reaktoren, gekennzeichnet dadurch, daß 1. das Licht in bezug auf Wellenlängenzusammensetzung und Intensität verändert sowie zeitliche Beleuchtungsmuster (Fluktuationen) erzeugt werden (Blenden, Filter zwischen Lampe und Lichtleiter) 2. der Beleuchtungskörper derart ausgeführt ist, daß er das über die Stirnseite gleichmäßig eingestrahlte Licht über die Seitenflächen gleichmäßig in bezug auf Umfang und axiale Ausdehnung abstrahlt (angerauhte Oberfläche und Einschlüsse in den transparenten Beleuchtungskörper) 3. der im Reaktor befindliche Teil der Beleuchtung temperatur- und druckbeständig ist, und in situ sterilisiert wird (Edelstahlreaktor, Beständigkeit des Ringlichtes durch Verwendung der Materialien V4 A-Stahl, Silikon, tempreaturbeständiges Gießharz, Glasfasern) 4. die gesamte Problemlösung mit interten Materialien ausgeführt ist und keine toxische Stoffe in das Reaktionsmedium gelangen (Wahl der Materialien: V4 A Stahl für Reaktor und Ringlicht, Silikon und temperaturbeständiges Gießharz im Ringlicht, Glasfasern) 5. die Beleuchtung in jeden Reaktor nachrüstbar ist (durch die Bauart bedingt) Main claim
A novel light input into photo-(bio-)reactors is applied for, characterized in that 1. the light input consists of the following components: light source, light guide, ring light and lighting fixture 2. the illumination source is located outside the reactor 3. the light is introduced into the reactor via at least one light guide (fibre bundle) 4. the optical fibers in the reactor are divided into at least one ring light 5. a lighting fixture is mounted on the ring light Subsidiary claims
Light input into photo-(bio-)reactors, characterized in that 1. the light is changed in terms of wavelength composition and intensity and temporal illumination patterns (fluctuations) are generated (apertures, filters between lamp and light guide) 2. the lighting fixture is designed in such a way that it radiates the light evenly radiated from the front side over the side surfaces evenly in terms of circumference and axial extent (roughened surface and inclusions in the transparent lighting fixture) 3. the part of the lighting located in the reactor is temperature and pressure resistant and is sterilized in situ (stainless steel reactor, durability of the ring light through the use of the materials V4 A-steel, silicone, temperature-resistant cast resin, glass fibers) 4. the entire problem solution is carried out with inert materials and no toxic substances enter the reaction medium (choice of materials: V4 A steel for reactor and ring light, silicone and temperature-resistant cast resin in the ring light, glass fibers) 5. lighting can be retrofitted into any reactor (depending on the design)
DE29819259U 1998-10-29 1998-10-29 Novel light entry in photo (bio) reactors Expired - Lifetime DE29819259U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29819259U DE29819259U1 (en) 1998-10-29 1998-10-29 Novel light entry in photo (bio) reactors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29819259U DE29819259U1 (en) 1998-10-29 1998-10-29 Novel light entry in photo (bio) reactors

Publications (1)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2206017A1 (en) * 2002-04-10 2004-05-01 Universidad De Almeria Photochemical micromolar reactor for real time reaction study includes artificial light irradiating sample of reactive chemical systems, with non-interfering reactive chemical systems
DE202010006193U1 (en) 2010-04-28 2010-07-22 Sartorius Stedim Biotech Gmbh Photobioreactor arrangement
WO2010115996A1 (en) 2009-04-10 2010-10-14 Acta Alga Photobioreactor in a closed medium for cultivating photosynthetic micro-organisms
WO2011080345A2 (en) 2010-01-04 2011-07-07 Acta Alga Photobioreactor in a closed environment for cultivating photosynthetic micro-organisms
DE102010018678A1 (en) 2010-04-28 2011-11-03 Sartorius Stedim Biotech Gmbh Bioreactor arrangement, shaker and method for irradiating a medium in a bioreactor
DE102010043586A1 (en) * 2010-11-08 2012-05-10 Christoph Peppmeier Breeding device for phototrophic crops
DE102011002763A1 (en) 2011-01-17 2012-07-19 Wacker Chemie Ag Photobioreactor with illumination by means of light fittings
WO2012152637A1 (en) 2011-05-06 2012-11-15 Acta Alga Enclosed photobioreactor for culture of photosynthetic microorganisms
DE102013015423A1 (en) * 2013-09-18 2015-03-19 Airbus Defence and Space GmbH Photobioreactor with light-decoupling optical fiber mats at the side
DE102014015049A1 (en) 2014-10-15 2016-04-21 EurA Consult AG Device for treating a fluid with UV radiation
DE102014225349A1 (en) * 2014-12-10 2016-06-16 Technische Universität Dresden Reactor system for the cultivation of microorganisms and their application for biochemical photosynthesis processes
DE202017005621U1 (en) 2017-10-30 2019-01-31 PURION GmbH UV treatment device
WO2019064291A1 (en) * 2017-09-26 2019-04-04 Brevel Ltd Systems and methods for closed cultivation using optic fiber to funnel natural light
US11643630B2 (en) 2015-11-20 2023-05-09 Corning Incorporated Illuminated container for growth of biological entities

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2206017A1 (en) * 2002-04-10 2004-05-01 Universidad De Almeria Photochemical micromolar reactor for real time reaction study includes artificial light irradiating sample of reactive chemical systems, with non-interfering reactive chemical systems
WO2010115996A1 (en) 2009-04-10 2010-10-14 Acta Alga Photobioreactor in a closed medium for cultivating photosynthetic micro-organisms
WO2011080345A2 (en) 2010-01-04 2011-07-07 Acta Alga Photobioreactor in a closed environment for cultivating photosynthetic micro-organisms
US10253290B2 (en) 2010-04-28 2019-04-09 Sartorius Stedim Biotech Gmbh Bioreactor arrangement, shaking device and method for irradiating a medium in a bioreactor
DE202010006193U1 (en) 2010-04-28 2010-07-22 Sartorius Stedim Biotech Gmbh Photobioreactor arrangement
DE102010018678A1 (en) 2010-04-28 2011-11-03 Sartorius Stedim Biotech Gmbh Bioreactor arrangement, shaker and method for irradiating a medium in a bioreactor
WO2011134629A1 (en) 2010-04-28 2011-11-03 Sartorius Stedim Biotech Gmbh Bioreactor assembly, agitating device and method for irradiating a medium in a bioreactor
DE102010043586A1 (en) * 2010-11-08 2012-05-10 Christoph Peppmeier Breeding device for phototrophic crops
DE102010043586B4 (en) * 2010-11-08 2012-06-14 Christoph Peppmeier Breeding device for phototrophic crops
DE102011002763A1 (en) 2011-01-17 2012-07-19 Wacker Chemie Ag Photobioreactor with illumination by means of light fittings
WO2012098031A1 (en) 2011-01-17 2012-07-26 Wacker Chemie Ag Photobioreactor with illumination by means of illuminant mouldings
WO2012152637A1 (en) 2011-05-06 2012-11-15 Acta Alga Enclosed photobioreactor for culture of photosynthetic microorganisms
DE102013015423A1 (en) * 2013-09-18 2015-03-19 Airbus Defence and Space GmbH Photobioreactor with light-decoupling optical fiber mats at the side
DE102014015049A1 (en) 2014-10-15 2016-04-21 EurA Consult AG Device for treating a fluid with UV radiation
DE102014015049B4 (en) 2014-10-15 2018-03-01 EurA Consult AG Device for treating a fluid with UV radiation
DE102014225349A1 (en) * 2014-12-10 2016-06-16 Technische Universität Dresden Reactor system for the cultivation of microorganisms and their application for biochemical photosynthesis processes
DE102014225349B4 (en) * 2014-12-10 2016-09-29 Technische Universität Dresden Reactor system for the cultivation of microorganisms and their application for biochemical photosynthesis processes
US11643630B2 (en) 2015-11-20 2023-05-09 Corning Incorporated Illuminated container for growth of biological entities
WO2019064291A1 (en) * 2017-09-26 2019-04-04 Brevel Ltd Systems and methods for closed cultivation using optic fiber to funnel natural light
DE202017005621U1 (en) 2017-10-30 2019-01-31 PURION GmbH UV treatment device

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R086 Non-binding declaration of licensing interest
R207 Utility model specification

Effective date: 19991230

R156 Lapse of ip right after 3 years

Effective date: 20020702