Investigation and bioremediation of pentachlorophenol
Conference
·
OSTI ID:124555
- EMCON, Sacramento, CA (United States)
This case study concerns the investigation and remediation of pentachlorophenol (PCP) impacted soil. The scope of activities are adaptable for use at federal facilities with polychlorinated hydrocarbon or similar impacted soils. The scope of activities included site characterization, biotreatability testing, fate and transport modeling, and on-site enhanced biodegradation within an engineered biopile augmented with air injection and soil moisture controls. Upon investigation, significant levels of PCP were discovered in site soils, PCP contamination was detected at levels exceeding regulatory limits in the shallow soil immediately surrounding the former dip tank. Groundwater did not contain detectable levels of PCP. Using the data collected, the Seasonal Soil Compartment Model (SESOIL) was utilized to assess the fate and transport mechanisms of PCP in the unsaturated zone to aid in identifying remediation options. The recommended remediation option included excavation and on-site enhanced (forced-air injection and soil moisture control) biostimulation of 2,400 cubic yards of affected soils. Negotiations with the regulatory agencies for acceptance of the proposed remedial activities and proposed clean-up levels were successful.
- OSTI ID:
- 124555
- Report Number(s):
- CONF-940499--; ISBN 1-56590-014-6
- Country of Publication:
- United States
- Language:
- English
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