In Situ Solidification and Stabilization Treatability Studies

In situ solidification and stabilization (ISS) treatability studies are bench-scale laboratory tests that help evaluate whether adding amendments to the subsurface can decrease the rate at which compounds of concern move through a site or arrest that movement altogether.

Clients reach out to SiREM to decide whether in situ solidification and stabilization (ISS) treatments are a good option to remediate their sites. SiREM conducts treatability studies to evaluate whether adding amendments to the subsurface can decrease the rate at which compounds of concern move through a site or arrest that movement altogether.

ISS studies can help you answer these questions about your site: 

  • Will solidifying site materials slow or stop the movement of compounds of concern?

  • Will stabilizing the site materials improve the compressibility and structural stability?

  • How much cement will I need to meet the site objectives?

  • Can a cement additive, like slag, fly ash, or bentonite make the solidified material more stable or further decrease contaminant movement?

  • Can combining ISS with another remedy, like in situ chemical oxidation (ISCO) or in situ chemical reduction (ISCR), make the solidified material more stable or further decrease contaminant movement?

Customized Studies with Dependable Results 

SiREM’s experts perform ISS studies for many compounds of concern using a variety of stabilization amendments. Our technically challenging studies maintain correct amendment dosing and curing environments.

Clients turn to us to evaluate combining ISS with other remedies, such as ISCO or ISCR, using base-activated persulfate or zero-valent iron to reduce the contaminant mass in the material during mixing and curing. This process can reduce the total contaminant mass and the contaminant flux from the solidified material. In addition, SiREM can evaluate the contaminant flux from the solidified site materials using LEAF protocols such as EPA 1316 and EPA 1315.

All custom studies are replicated, controlled experiments that provide high data integrity and interpretability. SiREM’s interpretative reports summarize data and place results in the context of a specific site to help clients select and optimize remedies.

ISS studies can help you accomplish the following: 

  • Evaluate different stabilization amendments at multiple doses.

  • Choose and optimize amendments for your site.

  • Evaluate contaminant flux after stabilization.

  • Implement on-the-fly changes in the lab to accurately represent site conditions and processes.

  • Incrementally identify and manage risk from lab to pilot studies to treatment.

  • Reassure stakeholders early on that ISS is a feasible remedy.

Ready to get started?

Contact us to investigate your treatability options. Together we can create custom remediation solutions for your site.