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Regenerable biocide delivery unitThe Microbial Check Valve (MCV) is used on the Space Shuttle to impart an iodine residual to the drinking water to maintain microbial control. Approximately twenty MCV locations have been identified in the Space Station Freedom design, each with a 90-day life. This translates to 2400 replacement units in 30 years of operation. An in situ regeneration concept has been demonstrated that will reduce this replacement requirement to less than 300 units based on data to date. A totally automated system will result in significant savings in crew time, resupply requirements, and replacement costs. An additional feature of the device is the ability to provide a concentrated biocide source (200 mg/liter of I2) that can be used to superiodinate systems routinely or after a microbial upset.
Document ID
19920048709
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Colombo, Gerald V.
(NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Jolly, Clifford D.
(Umpqua Research Co. Myrtle Creek, OR, United States)
Sauer, Richard L.
(NASA Johnson Space Center Houston, TX, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Subject Category
Man/System Technology And Life Support
Report/Patent Number
SAE PAPER 911406
Meeting Information
Meeting: International Conference on Environmental Systems
Location: San Francisco, CA
Country: United States
Start Date: July 15, 1991
End Date: July 18, 1991
Accession Number
92A31333
Distribution Limits
Public
Copyright
Other

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