Remediation of Coal Tar in a Manufactured Gas Plant (MGP) Gasholder: North Adams, Massachusetts
Abs: TerraTherm used its In Situ Thermal Desorption (ISTD) technology at full scale as follows: Prior to the site being heated, coal tar DNAPL had resisted recovery. After dewatering, TerraTherm applied ISTD in a step-wise fashion, without excavation. To our knowledge, this is the first site where a multi-level in-situ heating approach has been applied… Continue reading
Klozur® for ISCO Treatment of Petroleum NAPL
Abs: Release of oils and PAHs from a petroleum processing facility soil pit caused extensive contamination at the site which was migrating to a river. A recirculation system used Klozur® (activated sodium persulfate) as the ISCO technology of choice. The remediation program also included the recirculation of fluids from the extraction well to enhance the desired groundwater flow and control chemical dispersion through the target treatment area… Continue reading
BIOREACTOR LANDFILLS
Abs: A bioreactor landfill is a MSWLF that operates to rapidly transform and degrade organic waste. The increase in waste degradation and stabilization is accomplished through the addition of liquid and air to enhance microbial processes. This bioreactor concept differs from the traditional “dry tomb” municipal landfill approach… Continue reading
Developing a Multi-Metals, Fence-Line Monitoring Plan for Fugitive Emissions Using X-Ray Based Monitors
Abs: A newly proven technology exists that allows industrial operators, researchers, and regulators to monitor short-term variations in airborne metals concentrations in near-real-time (NRT) intervals. This tool, a mobile ambient air X-ray fluorescence metals monitor, has proven itself to be a reliable, precise, and accurate monitor that has been validated through comparisons with federal reference method (FRM) sampling and laboratory analysis… Continue reading
Thermal-optical analysis for the measurement of EC and OC in ambient air
Abs: The European Union (EU) has issued a directive (2008/50/EC) which requires the monitoring of organic carbon and elemental carbon in PM2.5 at selected rural back- 10 ground sites from mid-2010 with thermal optical analysis method… Continue reading