U.S. EPA Contaminated Site Cleanup Information (CLU-IN)


U.S. Environmental Protection Agency
U.S. EPA Technology Innovation and Field Services Division

Search Result

WEATHERED PETROLEUM HYDROCARBONS (SILICA GEL CLEAN-UP)
Wright, J. and D. Slee.
Cooperative Research Centre for Contamination Assessment and Remediation of the Environment, Newcastle, Australia. CRC CARE Technical Report 40, 77 pp, 2018

The presence of polar metabolite compounds (e.g., alcohols, phenols, ketones, aldehydes, and organic acids) in samples collected from soil and groundwater affected by weathered petroleum hydrocarbons can impede the development of risk assessments based on total recoverable hydrocarbons. The project goal was to identify an appropriate silica gel cleanup (SGC) method for removing polar metabolite compounds prior to the analysis of petroleum hydrocarbons, and to provide guidance on interpretation of the data collected. The in situ SGC method involves adding silica to the extract to form slurry in which the silica then interacts and absorbs polar analytes. In the ex situ method, the extract is applied to a silica gel glass column that removes polars from the extract. The extracts are then analyzed by GC-FID. Advantages and disadvantages of both techniques are discussed. See Technical Report 40 at https://www.crccare.com/publications/technical-reports.



The Technology Innovation News Survey welcomes your comments and suggestions, as well as information about errors for correction. Please contact Michael Adam of the U.S. EPA Office of Superfund Remediation and Technology Innovation at adam.michael@epa.gov or (703) 603-9915 with any comments, suggestions, or corrections.

Mention of non-EPA documents, presentations, or papers does not constitute a U.S. EPA endorsement of their contents, only an acknowledgment that they exist and may be relevant to the Technology Innovation News Survey audience.