The fate of wastewater-derived NDMA precursors in the aquatic environment

Water Research
Elif Pehlivanoglu-Mantas, David L Sedlak

Abstract

To assess the stability of precursors of the chloramine disinfection byproduct N-nitrosodimethylamine (NDMA) under conditions expected in effluent-dominated surface waters, effluent samples from four municipal wastewater treatment plants were subjected to chlorination and chloramination followed by incubation in the presence of inocula derived from activated sludge. Samples subjected to free chlorine disinfection showed lower initial concentrations of NDMA precursors than those that were not chlorinated or were disinfected with pre-formed chloramines. For chloraminated and control (unchlorinated) treatments, the concentration of NDMA precursors decreased by an average of 24% over the 30-day incubation in samples from three of the four facilities. At the fourth facility, where samples were collected on three different days, NDMA precursor concentrations decreased by approximately 80% in one sample and decreased by less than 20% in the other two samples. In contrast to the low reactivity of the NDMA precursors, NDMA disappeared within 30 days under the conditions employed in these experiments. These results and measurements made in an effluent-dominated river suggest that although NDMA may be removed after wastewater effluent is ...Continue Reading

References

Mar 7, 2002·Environmental Science & Technology·William A Mitch, David L Sedlak
Mar 30, 2004·Environmental Science & Technology·William A Mitch, David L Sedlak
Jul 28, 2004·Water Research·Elif Pehlivanoglu, David L Sedlak
Sep 24, 2004·Environmental Toxicology and Chemistry·Birgit GrossMartin Reinhard
Oct 19, 2004·Environmental Science & Technology·Jeffrey W A CharroisSteve E Hrudey
Jan 27, 2005·Biotechnology and Bioengineering·Jonathan O SharpLisa Alvarez-Cohen
Aug 25, 2005·Environmental Toxicology and Chemistry·Angela Yu-Chen Lin, Martin Reinhard

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Citations

May 31, 2013·Environmental Science & Technology·Carissa L Homme, Jonathan O Sharp
May 10, 2012·Environmental Monitoring and Assessment·Gyung-A KimSeung-Hyun Kim
Dec 27, 2015·Water Research·Gwen C Woods, Eric R V Dickenson
Dec 6, 2012·Chemosphere·J W HattS J Judd
Mar 1, 2011·Journal of Hazardous Materials·Jacek Nawrocki, Przemysław Andrzejewski
Nov 20, 2015·Water Research·Wilson Beita-SandíTanju Karanfil
May 1, 2012·Journal of Hazardous Materials·Egemen AydinElif Pehlivanoglu-Mantas
Sep 7, 2006·Environmental Management·Nora A Doerr-MacEwen, Murray E Haight
Jan 11, 2011·Water Environment Research : a Research Publication of the Water Environment Federation·Chakkrid SattayatewaPaul Pitt
Dec 22, 2006·Environmental Science & Technology·Matthew G DavieJohn R Shapley

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