Formation, precursors, control, and occurrence of nitrosamines in drinking water: A review

被引:474
作者
Krasner, Stuart W. [1 ]
Mitch, William A. [2 ]
McCurry, Daniel L. [2 ]
Hanigan, David [3 ]
Westerhoff, Paul [3 ]
机构
[1] Metropolitan Water Dist Southern Calif, La Verne, CA 91750 USA
[2] Yale Univ, Dept Chem & Environm Engn, New Haven, CT 06520 USA
[3] Arizona State Univ, Sch Sustainable Engn & Built Environm, Tempe, AZ 85287 USA
关键词
Nitrosamines; NDMA; Disinfection by-products; Chloramination; Wastewater; Drinking water; polyDADMAC; N-NITROSODIMETHYLAMINE NDMA; BY-PRODUCT FORMATION; DISSOLVED ORGANIC NITROGEN; PERSONAL CARE PRODUCTS; MUNICIPAL WASTE-WATER; SECONDARY-AMINES; HALOGENATED DBPS; ACTIVATED CARBON; DISINFECTION; OZONATION;
D O I
10.1016/j.watres.2013.04.050
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
This review summarizes major findings over the last decade related to nitrosamines in drinking water, with a particular focus on N-nitrosodimethylamine (NDMA.), because it is among the most widely detected nitrosamines in drinking waters. The reaction of inorganic dichloramine with amine precursors is likely the dominant mechanism responsible for NDMA formation in drinking waters. Even when occurrence surveys found NDMA formation in chlorinated drinking waters, it is unclear whether chloramination resulted from ammonia in the source waters. NDMA formation has been associated with the use of quaternary amine-based coagulants and anion exchange resins, and wastewater-impaired source waters. Specific NDMA precursors in wastewater-impacted source waters may include tertiary amine-containing pharmaceuticals or other quaternary amine-containing constituents of personal care products. Options for nitrosamine control include physical removal of precursors by activated carbon or precursor deactivation by application of oxidants, particularly ozone or chlorine, upstream of chloramination. Although NDMA has been the most prevalent nitrosamine detected in worldwide occurrence surveys, it may account for only similar to 5% of all nitrosamines in chloraminated drinking waters. Other significant contributors to total nitrosamines are poorly characterized. However, high levels of certain low molecular weight nitrosamines have been detected in certain Chinese waters suspected to be impaired by industrial effluents. The review concludes by identifying research needs that should be addressed over the next decade. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码:4433 / 4450
页数:18
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