Survey of subsurface treatment technologies for environmental restoration sites at Sandia National Laboratories, New Mexico.

McGrath, Lucas K. ; Ho, Clifford Kuofei ; Wright, Jerome L.

Sandia National Laboratories

关键词: In Situ Remediation.;    Nitrates;    Hazardous Waste Site Remediation;    Ground Water;    Bioremediation;   

DOI  :  10.2172/913223
RP-ID  :  SAND2003-2880
RP-ID  :  AC04-94AL85000
RP-ID  :  913223

美国|英语

来源: UNT Digital Library

【 摘 要 】

This report provides a survey of remediation and treatment technologies for contaminants of concern at environmental restoration (ER) sites at Sandia National Laboratories, New Mexico. The sites that were evaluated include the Tijeras Arroyo Groundwater, Technical Area V, and Canyons sites. The primary contaminants of concern at these sites include trichloroethylene (TCE), tetrachloroethylene (PCE), and nitrate in groundwater. Due to the low contaminant concentrations (close to regulatory limits) and significant depths to groundwater ({approx}500 feet) at these sites, few in-situ remediation technologies are applicable. The most applicable treatment technologies include monitored natural attenuation and enhanced bioremediation/denitrification to reduce the concentrations of TCE, PCE, and nitrate in the groundwater. Stripping technologies to remove chlorinated solvents and other volatile organic compounds from the vadose zone can also be implemented, if needed.