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Fate and Transport of N ‐Nitrosamines Under Conditions Simulating Full‐Scale Groundwater Recharge Operations
Author(s) -
Drewes Jörg E.,
Hoppe Christiane,
Jennings Terry
Publication year - 2006
Publication title -
water environment research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.356
H-Index - 73
eISSN - 1554-7531
pISSN - 1061-4303
DOI - 10.2175/106143006x115408
Subject(s) - groundwater recharge , groundwater , nitrosamine , chemistry , n nitrosodimethylamine , anoxic waters , environmental chemistry , environmental science , environmental engineering , carcinogen , aquifer , geology , organic chemistry , geotechnical engineering
The key objective of this study was to investigate the attenuation mechanisms of seven N ‐nitrosamine compounds at environmental concentrations and under conditions relevant to groundwater recharge operations. The study used a combination of controlled laboratory‐scale soil‐column experiments and groundwater monitoring at a full‐scale riverbank filtration facility. Findings of the controlled column experiments suggest that N ‐nitrosodimethylamine and six other N ‐nitrosamines ( N ‐nitrosodiethylamine, N ‐nitrosomethylethylamine, N ‐nitroso‐n‐propylamine, N ‐nitrosodi‐n‐butylamine, N ‐nitrosopiperidine, and N ‐nitrosopyrrolidine) are biodegradable under oxic and anoxic oxidation–reduction conditions. Half lives determined in this study for the targeted compounds varied between 1.3 and 7 days, which will ensure a removal to below detection limits (<2 ng/L) within short travel times in groundwater recharge systems. Findings of this study suggest that complete removal of N ‐nitrosamines requires the presence of an adapted biocommunity, which will be established over several weeks to months.