JAG Consulting Group, Inc., implemented a peroxide activated Klozur® (sodium persulfate) groundwater treatment at a UST site.
Underground Storage Tank (UST) site
JAG Consulting Group, Inc.
Lake Shasta, California
BTEX, MTBE, TAME
Elevated levels of BTEX, MTBE, and TAME were present near the site. The ISCO treatment consisted of injections of Klozur® that were performed simultaneously into 12 injection wells. The chemical oxidation process can be described as a controlled, moderate-high temperature, and low-pressure application.
An overall MTBE reduction of 77%, a TAME reduction of 96%, and a Benzene reduction of 81% were achieved as a result of the ISCO injections after 210 days.
The rail yard site in Nijmegen, Netherlands has been subject to contamination via leaks, spills, and filling losses of hydrocarbon fuels over the years. Despite previous remediation attempts there remained residual TPH contamination. Following a successful bench test, a full-scale remotely controlled injection unit was used for implementation of alkaline activated Klozur® persulfate. The reduction of the TPH levels achieved the remedial goals in both the bench and fieldwork.
The selected remedy, soil mixing using in situ chemical oxidation (ISCO) combined with in situ solidification and stabilization (ISS) was used to destroy contaminants while stabilizing soils
Site Closed Following a Single Application of Klozur® SP and Hydrated Lime.
The approach was designed to remove the lower molecular weight compounds, which are the more soluble and mobile fraction of the contamination, via chemical oxidation while cementing the remaining higher molecular weight fraction of the tar in place. The addition of cement was also intended to activate the Klozur SP by generating alkaline conditions, significantly improving the kinetics of the ISCO reactions.
Specialty Earth Sciences, LLC was contracted to remediate a site that was impacted by residual coal tar by utilizing chemical oxidation methodologies.