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    TESTS OF THE NANO BUBBLE OZONE TECHNOLOGY (3 HP UNIT)

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    NBOT 3 HP Bench Scale Report_Final.pdf (2.358Mb)
    Date
    2020-02-21
    Author
    Anders, Olivia
    Beesley, Kim
    Fanberg, Lana
    Frie, Alexander
    Markee, Tom
    Regan, Deanna
    Schaefer, Heidi
    Polkinghorne, Christine
    Prihoda, Kelsey
    Saillard, Heidi
    TenEyck, Matthew
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    Abstract
    This technical report presents the bench-scale evaluation of the Nano Bubble Ozone Technology 3-horsepower unit (NBOT) developed by NABAS Group Inc. of Rockville, Maryland. This evaluation was the first to assess NBOT as a potential, in-tank, recirculating ballast water treatment method for the Laurentian Great Lakes. The evaluation began in March 2019 and ended in June 2019. All analyses occurred at the Lake Superior Research Institute (LSRI) at the University of Wisconsin-Superior (UWS) in Superior, Wisconsin, USA. The treatment technology uses cavitation to create ultrafine microbubbles (nanobubbles) containing ozone (O3) generated by the system. According to the developer, the resulting ozone and hydroxyl radical biproducts destroy all chemicals containing activated functional groups (aldehydes, ketones, amines, nitrates, etc.), RNA, DNA, peptides, steroids, as well as activated organic compounds (herbicides and pesticides), and microbial toxins. The ability of NBOT to increase dissolved ozone and oxidation-reduction potential in a 1000-L treatment tank was tested at two water temperatures (~10°C and ~25°C) using both dechlorinated laboratory water and amended dechlorinated laboratory water. Ozone levels observed to be generated by NBOT were lower than anticipated based on observations by Dr. Peter Moeller of the National Oceanic and Atmospheric Administration’s (NOAA) National Ocean Service (NOS) who was utilizing a newer model of NBOT. Biological dose effectiveness testing was not completed, per the developer’s request, due to below expected levels of ozone.
    Subject
    ozone
    NBOT
    bench-scale
    ballast water
    Permanent Link
    http://digital.library.wisc.edu/1793/79880
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    • Lake Superior Research Institute

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