U.S. flag An official website of the United States government.
Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

i

Light Emitting Diode (LED) Ultra-Violet (UV) Disinfection of Water



Details

  • Personal Author:
  • Description:
    This project intends to evaluate the effectiveness of pulsed gallium nitride (GaN) light emitting diode (LED) ultraviolet (UV) lamps to disinfect drinking water. This project will employ a novel probe configuration of an array of LED lamps encased in acrylic which can be immersed in water. Another innovative feature of this project will apply pulsed current to the LEDs rather than continuous current which is expected to reduce the power requirements of such a water disinfection device as well as extend the life of the LED lamps. Specifically, we aim to answer the following research questions: a) How well does a pulsed LED UV light disinfect water with Bacillus subtilis spores compared to LED UV light with continuous current. b) How much less power does the pulsed current configuration require compared to continuous current configuration. c) How long does the pulsed LED UV lamp remain effective compared to the continuous current configuration. d) What is the relationship between pulse width and peak power on the effectiveness of LED UV light for disinfecting water containing Bacillus subtilis spores. This project aims to develop a novel water disinfection device that has wide-reaching applications for workers and other personnel in austere environments, such as military personnel deployed to Forward Operating Bases (FOBs) and those struck with disaster who have disrupted access to safe drinking water. [Description provided by NIOSH]
  • Subjects:
  • Keywords:
  • Publisher:
    University of Cincinnati
  • Document Type:
    Text
  • Funding:
    Grant
  • Genre:
    Abstract or Summary
  • Place as Subject:
  • CIO:
    National Institute for Occupational Safety and Health (NIOSH)
  • Topic:
    Workplace Safety & Health
  • Location:
    North America
  • Pages in Document:
    1
  • NIOSHTIC Number:
    nn:20052543
  • Citation:
    13th Annual Pilot Research Project Symposium, University of Cincinnati Education and Research Center, October 4-5, 2012, Cincinnati, Ohio. Cincinnati, OH: University of Cincinnati, 2012 Oct; :1
  • Email:
    Michael.Miller@afit.edu
  • Federal Fiscal Year:
    2013
  • Performing Organization:
    University of Cincinnati
  • Peer Reviewed:
    True
  • Start Date:
    20050701
  • Source Full Name:
    13th Annual Pilot Research Project Symposium, University of Cincinnati Education and Research Center, October 4-5, 2012, Cincinnati, Ohio
  • End Date:
    20260630
  • Collection(s):
  • Main Document Checksum:
    urn:sha-512:c9de7f4603a744c94f9b22d66fd8fb91927de3056b0f852a65ec2d2a2ec09b024deedd832a8af2ecab750714950594e770877069f52226b1789af507306c1cfe
  • Download URL:
  • File Type:
    Filetype[PDF - 66.20 KB ]
PREVIOUS
ON THIS PAGE
Details
CDC STACKS serves as an archival repository of CDC-published products including scientific findings, journal articles, guidelines, recommendations, or other public health information authored or co-authored by CDC or funded partners.

As a repository, CDC STACKS retains documents in their original published format to ensure public access to scientific information.
BACK TO TOP