Activated carbon: a useful weapon in petroleum hydrocarbon remediation
Subsurface injection of AC is a relatively non-intrusive approach performed in small-diameter boreholes. It can also be applied directly into excavations and tank basins, allowing for the placement of AC at precise depths and locations and in quantities designed for effectiveness. The placement of AC can also act as a barrier to intercept a groundwater contamination plume and help prevent contaminants from migrating.
Some compounds such as biological agents, nutrients, and oxygen-enhancement additives may be added to AC to stimulate and accelerate petroleum-degrading bacteria populations. Other chemicals can be added that will directly degrade contaminants via chemical oxidation.
Depending on site-specific conditions, including accessibility to the target treatment area and subsurface characteristics, AC remediation technologies may provide an effective approach to petroleum contamination.