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Fate and Transport of N‐Nitrosamines Under Conditions Simulating Full‐Scale Groundwater Recharge Operations
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.
Fate and Transport of N‐Nitrosamines Under Conditions Simulating Full‐Scale Groundwater Recharge Operations
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.
Fate and Transport of N‐Nitrosamines Under Conditions Simulating Full‐Scale Groundwater Recharge Operations
Drewes, Jörg E. (author) / Hoppe, Christiane (author) / Jennings, Terry (author)
Water Environment Research ; 78 ; 2466-2473
2006-12-01
8 pages
Article (Journal)
Electronic Resource
English
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