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Evaluation of Biological Trickling Filter Performance for Graywater Treatment in ALS Systems
Technical Paper
2005-01-3023
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The Bioregenerative Air Treatment for Health system has been proposed for Advanced Life Support (ALS) planetary base applications. The system will be operated as a biotrickling filter to simultaneously treat graywater and waste gas. Preliminary experiments have focused on carbon removal from a graywater simulant. Six bench scale biotrickling filter reactors were constructed and monitored continuously. After a reactor startup phase of 40 days, the average total organic carbon (TOC) removal for reactors packed with Tri-packs® packing material was 62%. A second set of experiments was designed to evaluate TOC removal using different packing materials (Bee-cell and Biobale). It was hypothesized that the alternative packing materials would reduce the effects of channeling in the reactors, thus improving TOC removal. However, TOC removal did not significantly improve during the second set of experiments. Of note is that start-up performance was higher in reactors packed with Tri-packs® than other reactors. These results indicate that selection of packing material may be an important design parameter for reduction of reactor start-up period and associated off-line time.
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Citation
Sharvelle, S., Banks, M., McLamore, E., Kim, Y. et al., "Evaluation of Biological Trickling Filter Performance for Graywater Treatment in ALS Systems," SAE Technical Paper 2005-01-3023, 2005, https://doi.org/10.4271/2005-01-3023.Also In
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