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OXYGEN REQUIRED for the process is another expense item and we want to know it to size compressors and aeration equipment. Oxygen is required for growth and metabolism (reflected by coeff. a) as well as for biomass self-digestion (coeff. b). These coefficients (a and b) are again determined based on lab experiments. So is the overall Oxygen Uptake Rate (OUR) that the aeration equipment system has to supply and support.
Oxygen and Sheknows Media presents Quit your Day job , March 24th 2016 30 Rockefeller Center, New York. Photos by Tiffany Hagler-Geard/SheKnows
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These planes were not pressurized and needed an oxygen supply for high altitude. Inside temperatures at 30,000 Ft were as cold as -50 F.
Freshman, Colton Brandenburg, Radiology major, tries out the Oxygen Bar, held by the Campus Activities Board, in the Lions Den at Missouri Southern State University, Joplin, MO, on Tuesday, January 29, 2013.