Contaminated Soil Treatment
As part of its pledge to be "more than a contractor," EMS strives to provide innovative approaches to projects and technical assistance to customers in meeting cleanup goals by the most economical means and methods of contaminated soil treatment as possible. EMS has developed expertise with several in-situ remediation technologies with an emphasis on safety, cost reduction, performance and ease of use.
In-situ treatment of contaminated soil and/or groundwater can be achieved by various means and methods. Though injection is a viable and effective process on many sites, the treatment method preferred by EMS involves in-situ mixing with excavation equipment and specialty mixing attachments. Because the contamination is treated within the area of contamination ("in-situ") prior to generation of a waste, this method is especially beneficial when addressing contamination levels in excess of hazardous waste standards.
When comparing in-situ mixing/treatment to more traditional "hog and haul" methods of hazardous waste remediation, in-situ treatment achieves three key objectives at the same time.
- In-situ mixing/treatment significantly reduces overall project costs.
- In-situ mixing/treatment is fast-acting.
- In-situ mixing/treatment prevents the generation of hazardous waste.
Depending on cleanup standards and site parameters, treated soil either can remain on site or can be removed for disposal as non-hazardous waste. In either case, the three objectives noted above are achieved on each and every site where in-situ mixing/treatment is utilized.
EMS utilizes various in-situ remediation technologies when addressing soil and/ or groundwater contamination, including the following:
- In-situ chemical oxidation (ISCO)
- Metals stabilization/fixation
- Enhanced aerobic biodegradation (reductive dechlorination)