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

Abel, S. and J. Akkanen. Environmental Science & Technology [Published online 28 Feb 2019 prior to print]

The high buoyancy of activated carbon (AC) particles makes their application difficult in the field. A novel sorbent material was developed, consisting of powdered AC (PAC) embedded into a stable, granular clay matrix, significantly reducing buoyancy. These AC-clay granules (ACC-G) were tested for remediation potential (PCB bioaccumulation reduction) and adverse effects on the benthic invertebrates Chironomus riparius and Lumbriculus variegatus. The novel ACC-G material was compared to GAC of the same particle size, the clay matrix, and PAC. The findings show that ACC-G has a significantly higher remediation potential than GAC, allowing for reductions in PCB bioaccumulation of up to 89%. Adverse bioaccumulation effects could not be totally eliminated with ACC-G, but they were less severe than with PAC, likely due to the increased particle size. This article is Open Access at https://pubs.acs.org/doi/pdf/10.1021/acs.est.8b06471.

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.