Biological pre-treatment of a space based waste stream to improve distillation treatment efficiency

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

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

A series of two membrane-aerated biofilm reactors (MABR's) and a rotary distillation unit treated a space habitation waste stream. The waste stream is composed of a hygiene ersatz solution (to simulate the wastewater produced from hygiene events in space) and urine. The waste stream is fed through the MABR's with a retention time of approximately 12 days. The waste is rich in carbon and nitrogen (mainly from the urine) and also has a sustainable amount of nutrients for the microorganisms to provide efficient carbon and nitrogen removal. The MABR's achieved approximately 85% carbon removal, and 60% nitrogen conversion. The effluent stream from the MABR's is then processed through a rotary distillation unit, which provides further treatment of the waste stream. The distillation unit is efficient in removing approximately 90% of carbon, nitrogen, suspended solids, and ammonia from the MABR's effluent. The distillate produced from this process then could be mixed with other less concentrated waste streams in the system and then be theoretically reintroduced in the space habitation system for potable 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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