Ultraviolet Light Emitting Diodes for Disinfection of Spacecraft Potable Water Systems Dynamac Corporation

Format:

Conference/Event

Author/Creator:

Birmele, Michele, author.

Conference Name:

International Conference On Environmental Systems (2009-07-12 : Savannah, Georgia, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2009

Summary:

This report describes proof-of-concept testing of a commercial-off-the-shelf deep ultraviolet LED for future application as a point-of-use or residual disinfection device for spacecraft potable water systems. The electro-optical performance and disinfection efficacy of a 0.5 mW 265nm UV-C LED (UVTOP, Sensor Electronic Technology, Incorporated, Columbia, SC) was measured in both static and flow environments against five challenge microorganisms inoculated into potable water at an initial concentration 108 cells per milliliter. The germicidal irradiation from a single UV-C LED array was sufficient to effect > 4-log kill (> 99.99%) of the challenge bacterial population in < 60 minutes contact time

Notes:

Vendor supplied data

Publisher Number:

2009-01-2508

Access Restriction:

Restricted for use by site license