Next Generation Water Recovery for a Sustainable Closed Loop Living

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dc.creatorVijapur, Santosh
dc.creatorHall, Timothy
dc.creatorTaylor, E. Jennings
dc.creatorLiu, Danny
dc.creatorSnyder, Stephen
dc.creatorCabrera, Carlos
dc.creatorVazquez, Delmaliz Barreto
dc.creatorCardona, Wilfredo
dc.creatorPerez, Arnulfo Rojas
dc.date.accessioned2021-06-24T19:17:58Z
dc.date.available2021-06-24T19:17:58Z
dc.date.issued7/12/2021
dc.descriptionSantosh Vijapur, Faraday Technology, Inc.
dc.descriptionTimothy Hall, Faraday Technology, Inc.
dc.descriptionE. Jennings Taylor, Faraday Technology, Inc.
dc.descriptionDanny Liu, Faraday Technology, Inc.
dc.descriptionStephen Snyder, Faraday Technology, Inc.
dc.descriptionCarlos Cabrera, University of Puerto Rico, Rio Piedras
dc.descriptionDelmaliz Barreto Vazquez, University of Puerto Rico, Rio Piedras
dc.descriptionWilfredo Cardona, University of Puerto Rico, Rio Piedras
dc.descriptionArnulfo Rojas Perez, University of Puerto Rico, Rio Piedras
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.abstractThe Environmental Control and Life Support System (ECLSS) within the International Space Station (ISS) recovers and recycles up to 85% water from human waste with lifetime/durability limitations requiring the supply of hazardous chemicals and filter units to treat the system components to maintain their targeted performance. However, as human missions travel further into the solar system the availability of resources to resupply will be diminished. Therefore, next-generation system is required to reduce waste, recover water, and improve efficiency. Accordingly, Faraday Technology and the University of Puerto Rico (UPR) are developing a bio-electrochemical system to efficiently treat urine waste streams with ~95% urea to improve the water recovery system�s efficiency/durability. Within this system, a bioreactor will convert urea from the waste water to ammonia by hydrolysis: NH2(CO)NH2 + H2O ? 2NH3 + CO2 (1) The effluent of the bioreactor will then flow through the ammonia oxidation reactor: 2NH3 ? N2 + 3H2 (2) thus, generating urea free waste water effluent for further enhancement. Faraday and UPR have (1) leveraged existing knowledge to design and test the bio-electrochemical reactor; (2) explored the efficacy of (P. Vulgaris) bacteria for bioreactor, (3) evaluated electrocatalyst for ammonia reactor, (4) optimized the efficiency and waste water treatment rate with urine simulants. By doing so, the ammonia reactor demonstrated nearly 100% ammonia removal during optimized operation. The data from bench scale system was utilized to design and build a demonstration-scale bio-electrochemical reactor capable of meeting NASA specifications. A zero-gravity flight test is scheduled for May 2021 to validate the technology in microgravity. Furthermore, this technology has the potential to be compatible with the existing ECLSS infrastructure and be an integral part of the closed loop living systems required for long term life support on NASA�s manned space missions. Acknowledgements: Financial support of NASA Contract NNX17CA30P and 80NSSC18C0222.en_US
dc.format.mimetypeapplication/pdf
dc.identifier.otherICES-2021-269
dc.identifier.urihttps://hdl.handle.net/2346/87226
dc.language.isoengen_US
dc.publisher50th International Conference on Environmental Systemsen_US
dc.subjectWaste Water Treatment
dc.subjectUrine
dc.subjectUrea
dc.subjectBioreactor
dc.subjectAmmonia oxidation
dc.titleNext Generation Water Recovery for a Sustainable Closed Loop Livingen_US
dc.typePresentationen_US

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