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


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PHYTOREMEDIATION OF CONTAMINATED SOIL IN A REMOTE NORTHERN LOCATION: A COST EFFECTIVE AND PREDICTIVE REMEDIATION STRATEGY
Poltorak, B. | SMART Remediation: March 20, 2019, Edmonton, AB, Canada. 21 slides, 2019

Plant growth-promoting rhizobacteria (PGPR) have been implemented to enhance phytoremediation systems (PEPSystems™) for cost-effective removal of petroleum hydrocarbons (PHCs), PAHs, and salt from soils. PEPSystems facilitates the production of abundant root biomass and the exponential growth of rhizobacteria, which facilitates degradation of PHCs and sequesters salt into plant foliage. The technology was first deployed in 2008 at the remote Nota Creek C-17 site near Norman Wells, Northwest Territories, to treat PHC- and salt-contaminated soil. Between 2008 and 2010, surface soil containing elevated salt levels was successfully treated. In 2011, PHC-contaminated soil was partially excavated and placed upon the on-site treatment area or stockpiled for future treatment. This excavated soil was successfully remediated between 2011 and 2016. In 2017, the remaining in situ PHC-contaminated soil was excavated, placed onto the treatment area, and successfully remediated. Backfilling the excavations and recontouring the site using the treated soil plus revegetation of the site was completed in 2018 to comply with NT reclamation requirements. Kinetic modeling of PEPSystems performance can be performed as the basis for predicting the length of time required to remediate PHC-contaminated sites. https://2ziapbmm3zh1x23mj335vjxt-wpengine.netdna-ssl.com/wp-content/uploads/2018/12/SMART-Remediation-Edmonton-2019-Ben-Poltorak.pdf



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