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Water system microbial check valve development

Author
Greenley, D. R.
Published
Feb 1, 1978.
Physical Description
1 electronic document
Additional Creators
Putnam, D. F. and Colombo, G. V.
Online Version

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Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access
Summary
Development work on a device for the Space Shuttle that will prevent the transfer of viable microorganisms within water systems is described. The device serves as a check valve in that it prevents the transfer or cross-contamination of microorganisms from a nonpotable system into a potable water system when these systems are interconnected. In this regard, the function of the device is similar to that of the air gap found in conventional one gravity systems. The device is essentially a bed of resin material impregnated with iodine. Basic design data for a variety of flow and temperature conditions are presented, together with results of challenging the beds with suspensions of seven microorganisms including aerobes, anaerobes, and spore formers.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 19780014776.
Accession ID: 78N22719.
NASA-CR-151678.
URC-80208.
Terms of Use and Reproduction
No Copyright.
View MARC record | catkey: 15729035