Graywater Treatment Using Biofilm Reactors for Water Recycling in Advanced Life Support

Sybil Sharvelle, M. Katherine Banks, Erin Maloney, Katherine Graham

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

Abstract

Preliminary experiments for the Bio-Regenerative Environmental Air Treatment for Health (BREATHe) system have been conducted The BREATHe system is part of a multicomponent life support system and is designed to treat contaminated liquid and gas waste streams simultaneously withing a closed life support system Experiments focused on the BREATHe I system used for treatment of graywater and waste gas from a solids biological treatment process In this first experimental phase, prototype benchtop reactors were constructed to evaluate surfactant removal Surfactants, the major component of detergents, are the primary area of concern for graywater treatment The recirculation rate was varied between 10 and 20 times the influent flow rate to determine the required recirculation rate for 90% COD removal from the influent wastestream A recirculation rate of 20 times the inflow rate was required for 90% COD removal Biological growth rate experiments were performed using two commercial laundry detergents (Tide and Cheer) Biological growth was observed in both cases and growth rates increased with increasing concentrations of Tide Conversely, increases in Cheer conqentrations resulted in lower biological growth rates, possibly due to toxicity.

Original languageEnglish (US)
Title of host publicationEngineering, Construction and Operations in Challenging Environments - Earth and Space 2004
Subtitle of host publicationProceedings of the Ninth Biennial ASCE Aerospace Division International Conference
PublisherAmerican Society of Civil Engineers (ASCE)
Pages384-390
Number of pages7
ISBN (Print)0784407223, 9780784407226
DOIs
StatePublished - 2004
EventEngineering, Construction and Operations in Challenging Environments - Earth and Space 2004: Proceedings of the Ninth Biennial ASCE Aerospace Division International Conference - League City/Houston, TX, United States
Duration: Mar 7 2004Mar 10 2004

Publication series

NameEngineering Construction and Operations in Challenging Environments Earth and Space 2004: Proceedings of the Ninth Biennial ASCE Aerospace Division International Conference

Other

OtherEngineering, Construction and Operations in Challenging Environments - Earth and Space 2004: Proceedings of the Ninth Biennial ASCE Aerospace Division International Conference
CountryUnited States
CityLeague City/Houston, TX
Period3/7/043/10/04

ASJC Scopus subject areas

  • Engineering(all)

Fingerprint Dive into the research topics of 'Graywater Treatment Using Biofilm Reactors for Water Recycling in Advanced Life Support'. Together they form a unique fingerprint.

Cite this