Use of Ecopiling to Remediate PAH-Contaminated Storm-water Lagoon Sediment
Polycyclic Aromatic Hydrocarbons (PAHs) are widely distributed in the environment originating from both natural and anthropogenic sources. One major anthropogenic source of PAHs is creosote which is used as a wood preservative and contains 85% PAHs (w/w). Industrial facilities carrying out creosote treatment activities can result in major contamination of soil and groundwater at these sites. The current study investigates the potential of Ecopiling as a bioremediation strategy for creosote contaminated soil/sediment at a former wood preservation facility. The results showed that the creosote contaminated sediment had an inhibitory effect on plant growth and reduced the effectiveness of rhizoremediation. However, the use of a clean soil overlay led to a significant decrease in the phyto-toxicity. The use of Ecopiling was found to reduce the sum of EPA 16 PAH concentrations in the sediment by 94-96% after 730 days. Although Ecopiling is a slow process compared to thermal and chemical treatments it has proven to be an effective and low cost process for the remediation of PAHs from industrial sediments.

Liu,X, Kiwanuka,S, Cleary, K, Ryan, D, Dowling,DN, Germaine KJ (2016) Use of Ecopiling to remediate PAHContaminated Storm-water Lagoon Sediment. . J Bioremed.Biodeg. 7:4 DOI: 10.4172/2155-6199.1000355