Process Performance of Ultraviolet Disinfection Systems for Long-term Space Missions
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
Date of this Version
July 2004
Identifier
ALS-NSCORT:p13
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.
Comments
Presented at International Conference On Environmental Systems, July 2004, Colorado Springs, CO, USA, Session: Spacecraft Water / Air Quality: Maintenance and Monitoring