NSF award 2553642 · University of Colorado at Boulder

NSF-BSF: Integrated Ultraviolet (UV) and Antimicrobial Blue Light (aBL) for Enhanced Water Disinfection

Final report due

28 September 2029

in 1,076 days · The award ends on 31 May 2029.

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Decide about an extension31 Jan 2029in 836 days
award ending 2029-05-31 · Research.gov
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Extension request16 Apr 2029in 911 days
award ending 2029-05-31 · Research.gov
PAPPG 24-1: “at least 45 days prior to the end date”
No-cost extension notice21 May 2029in 946 days
award ending 2029-05-31 · Research.gov
PAPPG 24-1: “at least ten calendar days prior to the end date”
Final report due28 Sep 2029in 1076 days
award ending 2029-05-31 · Research.gov
PAPPG 24-1: “no later than 120-days following the end date of the award”
Project outcomes report due28 Sep 2029in 1076 days
award ending 2029-05-31 · Research.gov
PAPPG 24-1: “no later than 120 days following the end date”
Award is closed out28 Sep 2029in 1076 days
award ending 2029-05-31 · Research.gov
PAPPG 24-1: “financially closed out 120 days after their expiration date”

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NSF lists this award's end date as 31 May 2029.
NSF rules say the final report is due no later than 120 days after that.
So the final report is due by 28 September 2029.

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Award card

Award number: 2553642
Period of support: 1 Jun 2026 – 31 May 2029
Amount: $435,320
Awardee: University of Colorado at Boulder, Boulder, CO
Program: EnvE-Environmental Engineering
Directorate: ENG

Abstract

This NSF-BSF project will find better ways to keep water clean without using chemicals like chlorine. Most water systems use chlorine to kill germs. It is effective against many, but not all, germs. Furthermore, it leaves chemicals in the water. This project will test two types of light to clean water – ultraviolet (UV) light and antimicrobial blue light (aBL). UV light can kill germs quickly without leaving…

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