Nitrosamine Precursors in Direct and Indirect Potable Reuse Water

There is growing interest in nitrosamines, including N-nitrosodiethylamine (NDEA), and their precursors. This project applied an existing analytical method typically used for N-nitrosodimethylamine (NDMA)—the most commonly occurring nitrosamine present in reverse osmosis and advanced oxidation process treated water from potable reuse facilities—to detect additional nitrosamines. As nitrosamines in the finished water were identified, the analytical methodology was modified to search for and identify precursors associated with these nitrosamines. This project increases understanding of the importance of NDEA and other nitrosamines in finished reclaimed water and their occurrence through a typical full advanced treatment train.

This project builds upon the National Science Foundation project Securing the Future of Direct and Indirect Potable Reuse: N-nitrosodimethylamine (NDMA) Formation Pathways and Precursors.