Coal tar contamination at manufactured gas plant sites and hydrocarbon-impacted soils associated with the petroleum industry are complex problems that only a handful of remedies are capable of addressing in a cost effective and timely manner.STAR – a new technology based on the principles of smoldering combustion – is an innovative approach that has significant potential for the remediation of sites impacted by such non aqueous phase liquids. STAR has been demonstrated to be highly effective through both in situ and ex situ field pilot studies. STAR is also cost effective, by taking advantage of the low energy requirements of the smoldering combustion process. The presentation will provide an overview of the STAR technology and will discuss an in situ STAR pilot test conducted at a former cresol manufacturing facility in New Jersey. The pilot test demonstrated the rapid rate of contaminant mass destruction and the remediation efficiency of the technology with observed sustained destruction rates of 800 kilograms per day. Samples from cores recovered from the pilot test area showed three to four orders of magnitude concentration reductions as a result of STAR. Additional testing is planned with the goal of a full-scale STAR application at the 37-acre site.
- Geosyntec Authors: Gavin Grant
- Title: Self-Sustaining Treatment for Active Remediation (STAR): Smoldering Combustion for the Treatment of Non Aqueous Phase Liquids
- Event or Publication: Proceedings of the Remediation Technologies Symposium (RemTech) 2011
- Practice Areas: Groundwater Assessment and Remediation
- Date: 2011
- Location: Chicago, Illinois