EPA Science Inventory

Evaluation of a Pour-Through Water Treatment Device for Use as Microbiological Purifier

Citation:

PATTERSON, C. L., M. Waskar, N. Muhammad, R. Sinha, E. R. Krishnan, AND N. Shah. Evaluation of a Pour-Through Water Treatment Device for Use as Microbiological Purifier . In Proceedings, World Environmental & Water Resources Congress 2010, Challenges of Change, Providence, RI, May 16 - 20, 2010. Environmental & Water Resources Institute (EWRI) of ASCE, Reston, VA, 281-288, (2010).

Description:

The United States Environmental Protection Agency (EPA) Office of Research and Development has evaluated the performance of a Point-of-Use (POU) pour-through device designed for use in India, developing and emerging market (D&E) countries, and under emergency situations in the United States. In collaboration with Unilever Research India, a series of microbial tests were conducted on a Unilever Pureit™ microbiological purifier for household drinking water at the EPA’s Test and Evaluation Facility in Cincinnati, Ohio. The Pureit™ water treatment system is fed by gravity and combines the unit operations of physical filtration, chlorine disinfection, and carbon adsorption for treating drinking water(DW). EPA evaluated the Pureit™ device for removal of E. coli (as a surrogate for bacteria), and MS2 bacteriophage (as a surrogate for viruses). Results demonstrated that the Pureit™ system achieved EPA requirements of a 6 log reduction of bacteria and a 4 log reduction of virus for a “Microbiological Purifier” throughout the design life of the device (~ 2250 liters). The final polisher of the unit was capable of reducing the residual chlorine concentration to less than the EPA’s 2 mg/L maximum limit for DW.

Purpose/Objective:

To inform the public.

URLs/Downloads:

FOR FURTHER INFORMATION.PDF   (PDF,NA pp, 5 KB,  about PDF)

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Record Details:

Record Type: DOCUMENT (PAPER IN NON-EPA PROCEEDINGS)
Start Date: 05/20/2010
Completion Date: 05/20/2010
Record Last Revised: 05/28/2010
Record Created: 03/30/2010
Record Released: 03/30/2010
OMB Category: Other
Record ID: 221343

Organization:

U.S. ENVIRONMENTAL PROTECTION AGENCY

OFFICE OF RESEARCH AND DEVELOPMENT

NATIONAL RISK MANAGEMENT RESEARCH LABORATORY

WATER SUPPLY AND WATER RESOURCES DIVISION

WATER QUALITY MANAGEMENT BRANCH