Office of Research and Development Publications

Detection of Biological Suspensions Using Online Detectors in a Drinking Water Distribution System Simulator

Citation:

U.S. EPA. Detection of Biological Suspensions Using Online Detectors in a Drinking Water Distribution System Simulator. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-10/005, 2010.

Impact/Purpose:

Detection of low density microbial suspensions (less than 105 cfu/mL) was evaluated with a suite of online water quality sensors and instruments. Typically, the drinking water industry uses online sensors to measure parameters such as free chlorine, pH, and conductivity; however, in microbial suspensions below 105 cfu/mL, the sensors have a weak response or are ineffective. Therefore, sensors designed to detect either particulates in water or organic compounds that might accompany microbial suspensions (i.e., culture media) were evaluated for their ability to detect low density microbial suspensions. Evaluation took place in a pilot scale drinking water distribution system simulator. Sensor response data are summarized as absolute change, percent change, and signal-to-noise ratio.

Description:

Report

URLs/Downloads:

DETECTION OF BIO SUSPENSIONS USING ONLINE DETECTORS IN DRINKING WATER DISTR SYSTEM SIMULATOR-FINAL.PDF   (PDF,NA pp, 749 KB,  about PDF)

Record Details:

Record Type: DOCUMENT (PUBLISHED REPORT/REPORT)
Product Published Date: 03/11/2010
Record Last Revised: 02/24/2015
OMB Category: Other
Record ID: 218894

Organization:

U.S. ENVIRONMENTAL PROTECTION AGENCY

OFFICE OF RESEARCH AND DEVELOPMENT

NATIONAL HOMELAND SECURITY RESEARCH CENTER

WATER INFRASTRUCTURE PROTECTION DIVISION