An Updated Modeling Study on Nutrient Deprivation as a Biofilm Mitigation Strategy for Long Term Space Missions

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dc.creatorDiaz, Angie
dc.creatorLi, Wenyan
dc.creatorIrwin, Tesia
dc.creatorCalle, Luz
dc.date.accessioned2021-06-24T19:04:27Z
dc.date.available2021-06-24T19:04:27Z
dc.date.issued7/12/2021
dc.descriptionAngie Diaz, URS Federal Services Inc
dc.descriptionWenyan Li, URS Federal Services
dc.descriptionTesia Irwin, The Bionetics Corporation
dc.descriptionLuz Calle, NASA
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.abstractSpacecraft wastewater processing systems are environments where bacterial biofilm growth can cause problems in daily operation. As crewed missions explore beyond the ISS to the Moon and Mars, long periods of system dormancy will be necessary, making biofilm control more challenging. Previously reported preliminary mathematical models of biomass growth, as a function of nutrient availability, were developed to understand the biofilm accumulation in the WPA system under daily operation and potential dormancy conditions. These models were since updated to reflect the effect of oxygen availability, as well as the tank cycling during daily operation. This paper describes the updated models and compares the influence of various nutrient and energy limitations on the biomass product, in order to provide insight on the nutrient deprivation strategy for biofilm mitigation.en_US
dc.format.mimetypeapplication/pdf
dc.identifier.otherICES-2021-248
dc.identifier.urihttps://hdl.handle.net/2346/87214
dc.language.isoengen_US
dc.publisher50th International Conference on Environmental Systemsen_US
dc.subjectbiofilm
dc.subjectwastewater
dc.subjectnutrient
dc.subjectmodeling
dc.subjectmitigation
dc.subjectlimitation
dc.subjectUPA
dc.subjectWPA
dc.titleAn Updated Modeling Study on Nutrient Deprivation as a Biofilm Mitigation Strategy for Long Term Space Missionsen_US
dc.typePresentationen_US

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