Title

Process Performance of Ultraviolet Disinfection Systems for Long-term Space Missions

Comments

Presented at International Conference On Environmental Systems, July 2004, Colorado Springs, CO, USA, Session: Spacecraft Water / Air Quality: Maintenance and Monitoring

Abstract

The effectiveness of ultraviolet (UV) disinfection is governed by the UV dose to which microorganisms are exposed. In treatment operations, all UV disinfection systems deliver a distribution of UV doses. The ability to accurately estimate the dose distribution delivered by an operating UV system is a critical aspect of its design. Moreover, the availability of tools to accurately predict the dose distribution for an existing UV system makes it possible to develop reliable, quantitative predictions of process performance in these systems. The dose distribution can be estimated by employing computational fluid dynamics (CFD) and UV radiation intensity field modelling. UV dose-distribution data is then coupled with UV dose-response behavior for target microorganisms to yield an estimate of process performance.

Keywords

Ultraviolet, disinfection, dose, fluid mechanics

Identifier

ALS-NSCORT:p13

Date of this Version

July 2004

Publisher Identifier:

SAE Document Number 2004-01-2538

Publisher

SAE International

ALS NSCORT Project Number

Project 8 - Water Disinfection

Project Lead

Ernest R. Blatchley III

Language

English

ALS NSCORT Series

Published Materials

Administrative Contact

Dave Kotterman, dkotter@purdue.edu

Rights

Copyright 2004 SAE International. For additional information please visit the intellectual property section of the publisher's website: http://www.sae.org/about/intelproperty/ or the publisher's home page at: http://www.sae.org

Access

This article is not available through e-pubs. To purchse a copy of this article visit: http://www.sae.org/technical/papers/2004-01-2538. This article is available on microfiche at Purdue University's Engineering Library.

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