Biodegradation of N -nitrosodimethylamine in Soil from a Water Reclamation Facility

Authors: Bradley, Paul¹; Carr, Steve²; Baird, Rodger²; Chapelle, Francis¹

Source: Bioremediation Journal, Volume 9, Number 2, April-June 2005 , pp. 115-120(6)

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Abstract:

The potential introduction of N -nitrosodimethylamine (NDMA) into groundwater during water reclamation activities poses a significant risk to groundwater drinking supplies. Greater than 54% biodegradation of N -[methyl- 14 C]NDMA to 14 CO 2 or to 14 CO 2 and 14 CH 4 was observed in soil from a water reclamation facility under oxic or anoxic conditions, respectively. Likewise, biodegradation was significant in microcosms containing soil with no history of NDMA contamination. These results indicate that aerobic and anaerobic biodegradation of NDMA may be an effective component of NDMA attenuation in water reclamation facility soils.

Keywords: biodegradation; ground water; NDMA; N-nitrosodimethylamine; recharge; soil; water reclamation

Document Type: Research article

DOI: http://dx.doi.org/10.1080/10889860500276607

Affiliations: 1: U.S. Geological Survey, Columbia, South Carolina, USA 2: County Sanitation Districts of Los Angeles, San Jose Creek Water Quality Laboratory, Whittier, California, USA

Publication date: 2005-04-01