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Grantee Research Project Results

Drinking Water Disinfection Using a UV/Photocatalyst

EPA Grant Number: SU832499
Title: Drinking Water Disinfection Using a UV/Photocatalyst
Investigators: Ong, Say Kee , Mazur, Robert
Current Investigators: Ong, Say Kee , Bruton, Tom , Bulliner, Edward , Ikoba, Eseroghene , Naeve, Nashay , Tekippe, Mark
Institution: Iowa State University
EPA Project Officer: Nolt-Helms, Cynthia
Project Period: October 1, 2005 through May 30, 2006
Project Amount: $9,600
RFA: P3 Awards: A National Student Design Competition for Sustainability Focusing on People, Prosperity and the Planet (2005)
Research Category: P3 Challenge Area - Water , Pollution Prevention/Sustainable Development


Worldwide, lack of safe drinking water takes an inestimable toll on human health. The objective of this project is to develop a small-scale sustainable water disinfection technology requiring a minimum of treatment time. The technology to be developed will be simple, sustainable and appropriate for implementation in the Kamuli district of Uganda. Solar UV has been used in developing countries for disinfection drinking water. However, the time needed is usually in the order of 5-6 hours. Solar UV radiation and a titanium dioxide photocatalyst can be utilized to create an effective system to reduce the time needed to disinfect water. However, several design challenges must be considered before the technology can be applied. Some of the challenges for the technology to be appropriate include use of readily-available materials, dosage of photocatalyst needed and the method of deployment of the photocatalyst. A small scale system will be tested. Communication with students and professionals at the partner institutions in Uganda will ensure consideration of factors such as sustainability and appropriateness. Project will be performed by students in a multidisciplinary sustainable engineering course in conjunction with students from the group Engineers for a Sustainable World. It is expected that students will learn about sustainability and the design will be optimized through testing. At the end of the project period, the design and a prototype will be ready for field implementation.

Supplemental Keywords:

water, human health, environmental chemistry, disinfection, community-based,, RFA, Scientific Discipline, INTERNATIONAL COOPERATION, Geographic Area, Water, Drinking Water, International, Environmental Engineering, titanium dioxide photo catalyast, disinfection of waters, Uganda, UV treatment, UV disinfection, drinking water distribution system, solar detoxification, drinking water contaminants, drinking water treatment

Progress and Final Reports:
Final Report

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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.

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