Biological and physical polishing of a space based waste stream

Tony Vercellino, Dylan Christenson, Stephen Morse, Kyle Kubista, Dannia Wilson, W. Andrew Jackson, Audra Morse

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

A hollow fiber membrane bio-reactor (HFMBR) and hollow fiber microfiltration (MF) membrane cartridge treated a space habitation humidity condensate waste stream. The waste stream has an ideal ratio of organic carbon to nitrogen (C:N = 7:1) to promote biological treatment. Carbon and Nitrogen removal in the HFMBR was highest (76% and 43%, respectively) for the shortest retention time. Addition of an outside macronutrient source and pure oxygen, as opposed to lab air, showed a significant increase in carbon removal, but had no significant affect on nitrification/dentrification reaction rates (areal or volumetric). The MF module was used to polish the waste stream for potential reuse within the space habitation environment. The MF module provided 5-log removal of bacteria from the post-processor HFMBR effluent, as well as reducing turbidity and suspended solids to values less than 1 NTU/ppm. The MF module also showed small reductions in DOC and TN values (10-20%). The MF permeate then could theoretically be reintroduced into the space habitation system for reuse upon disinfection.

Original languageEnglish
Title of host publication41st International Conference on Environmental Systems 2011, ICES 2011
StatePublished - 2011
Event41st International Conference on Environmental Systems 2011, ICES 2011 - Portland, OR, United States
Duration: Jul 17 2011Jul 21 2011

Publication series

Name41st International Conference on Environmental Systems 2011, ICES 2011

Conference

Conference41st International Conference on Environmental Systems 2011, ICES 2011
CountryUnited States
CityPortland, OR
Period07/17/1107/21/11

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    Vercellino, T., Christenson, D., Morse, S., Kubista, K., Wilson, D., Jackson, W. A., & Morse, A. (2011). Biological and physical polishing of a space based waste stream. In 41st International Conference on Environmental Systems 2011, ICES 2011 (41st International Conference on Environmental Systems 2011, ICES 2011).