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Project ID: 2002NJ4B

Title: Continuous, On-Line Monitoring if Haloacetic Acids in Water Using Analytical Membrane Extraction

Project Type: Research

Focus Categories: Methods, Water Quality, Non Point Pollution

Keywords: membrane separation, disinfection by-products, DBPs, HAAs, haloacetic acids, trichloroacetic acid, dichloroacetic acid, carcinogen, online monitoring, diazomethane, supported liquid membrane extraction, SLM, microporous membrane extraction, MME

Start Date: 03/01/2002

End Date: 03/01/2003

Federal Funds: $4,000

Non-Federal Matching Funds: $24,118

Congressional District: 10th

Principal Investigators:
Dawen Kou
New Jersey Institute of Technology

Somenath Mitra
New Jersey Institute of Technology


Halogenated compounds generated by the reaction of chlorine with Natural Organic Matter in source water have been identified in chlorinated drinking water as toxic disinfection by-products (DBPs). Health and environmental effects of haloacetic acids (HAAs) have been increasingly recognized; HAAs are toxic to humans, plants, and particularly to algae, and some are classified as carcinogens or potential carcinogens.

All the existing methods for HAA analysis are only suitable for laboratory analysis of discrete samples; no instrument is available for on-line, continuous monitoring and some of the HAAs are subject to degradation and should be analyzed as quickly as possible. On-line monitoring can provide real-time data and eliminate errors due to analyte loss and cross-contamination during sampling, sample transport, and storage. This is especially important given the instability of some HAAs.

The objective of this study is to develop methods/instrumentation for automated, on-line analysis of haloacetic acids in drinking water, water resources, and wastewater, with significant saving in time, labor and money. The instruments will able to carry out continuous, real-time monitoring with high selectivity and sensitivity, and minimize the use of toxic solvents in sample preparation.

Progress/Completion Report PDF

U.S. Department of the Interior, U.S. Geological Survey
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Last Updated: Thursday June 24, 2004 3:18 PM
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