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Airlift loop bioreactors with fluidic oscillator drive microbubbles

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Airlift loop bioreactors with fluidic oscillator drive microbubbles

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    1. Airlift loop bioreactors with fluidic oscillator drive microbubbles Will Zimmerman Professor of Biochemical Dynamical Systems Chemical and Process Engineering, University of Sheffield with Jaime Lozano-Parada and Hemaka Bandulasena, PD research associates with Kezhen Ying and James Hanotu, doctoral students

    2. Outline Why and how microbubbles? ALB concept Performance studies Steel stack gas trials Advantages for microbial and mammalian cell ALBs Sterilization: Ozone plasma microreactor in the lab Prototype designs

    3. Why microbubbles?

    4. The Fluidic oscillator

    5. Fluidic oscillator makes microbubbles!

    7. Air lift loop bioreactor design

    8. Construction

    9. Growing algae in the lab

    11. Biomass Concentration

    12. Current programme of field trials Corus: steel plant algal culture Aecom: separation/harvesting Air lift loop bioreactor development for biofuels

    13. Weather

    14. Overall growth dynamics

    15. Probing operation

    16. Pseudosteady operation

    17. Features

    18. Ozone Kills and mineralizes!

    19. Microfluidic onchip ozone generation

    20. Plasma discs

    21. Dosing lance assembly

    22. Consequence Our low power ozone plasma microreactor can be inserted into the microporous diffusers to arrange for ozone dosing on demand in an ALB, for sterilization or other uses. One potential use is providing a non-equilibrium driving force for biochemical reaction / biomass growth by breaking down extracellular metabolites secreted by microorganisms to minerals (CO2, H2O, nitrates, phosphates etc.) by UV-ozone providing a strong oxidizing environment in situ.

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