In Situ Bioremediation of Energetic Compounds In Groundwater
Abstract
This ESTCP demonstration evaluated the technical effectiveness of in situ bioremediation as a treatment technology for explosives, including RDX, HMX, and TNT, in groundwater at the Picati1my Arsenal in Dover, NJ. A recirculation cell design was employed to distribute and mix cheese whey with contaminated grotmdwater in order to promote the biodegradation of explosives by indigenous bacteria. The system was operated in a semi-passive mode, such that the whey solution was added to groundwater during active pumping cycles (3-5 days), and then the system was shut down for 6 to 12 weeks. This remedial approach proved to be highly effective for nitramine and nitroaromatic explosives. The applicable regulat01y guidance and! or action levels were achieved for RDX and TNT, and there >vas no significant accumulation of degradation intennediates. Moreover, due to the semi-passive operation, operation and maintenance costs were minimal. The results from this project suggest that in situ bioremediation of explosives in groundwater using semi-passive cosubstrate addition can be a viable long-term treatment approach.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 2012
- Accession Number
- ADA581233
Entities
People
- Paul B. Hatzinger