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dc.creatorJackson, William
dc.creatorPourbavarsad, Maryam Salehi
dc.creatorJalalieh, Behnaz Jalili
dc.creatorMuirhead, Dean
dc.creatorOwuor, Juliet
dc.date.accessioned2021-06-24T22:07:06Z
dc.date.available2021-06-24T22:07:06Z
dc.date.issued7/12/2021
dc.identifier.otherICES-2021-442
dc.identifier.urihttps://hdl.handle.net/2346/87314
dc.descriptionWilliam Jackson, Texas Tech University
dc.descriptionMaryam Salehi Pourbavarsad, Texas Tech University
dc.descriptionBehnaz Jalili Jalalieh, Texas Tech University
dc.descriptionDean Muirhead, Texas Tech University
dc.descriptionJuliet Owuor, Texas Tech University
dc.descriptionICES303: Physio-Chemical Life Support- Water Recovery & Management Systems- Technology and Process Developmenten
dc.descriptionThe 50th International Conference on Environmental Systems was held virtually on 12 July 2021 through 14 July 2021.en_US
dc.description.abstractWater recovery on ISS reduces resupply costs. Humidity condensate (HC) is a major source of available water on ISS but contains both organic and inorganic contaminants. Organic carbon and nitrogen in the HC can support microbial growth. Microbial growth in the HC storage tank has been documented and this growth has caused operational issues in the past. One possible solution to prevent excess growth and stabilize the humidity condensate to prevent downstream growth is to engineer a storage tank that will facilitate the oxidation of C and N, but prevent biomass shedding and growth downstream. A micro-gravity compatible membrane aerated bioreactor could serve as the HC feed tank and support waste stabilization. The stabilization would not only prevent downstream operational issues but would also reduce the loading on the mixed beds and catalytic oxidizer. We evaluated the performance of a gravity independent MABR treating HC over 7 months of operation. A range of loading rates from 2 C/d to 15 C-d, corresponding to organic carbon loadings from 800-6200 mg/d and a range of organic nitrogen loading from 130-1300 mg/d. Results indicated that the MABR was able to significantly remove organic carbon (>80%), oxidize organic N, and lower the pH with only minimal consumables (O2).en_US
dc.format.mimetypeapplication/pdf
dc.language.isoengen_US
dc.publisher50th International Conference on Environmental Systemsen_US
dc.subjectMABR
dc.subjectHumidity Condensate
dc.subjectWaste stabilization
dc.titleHumidity Condensate Stabilization Using an Engineered Biologically Active Storage Tanken_US
dc.typePresentationen_US


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