Heavy Metals Treatment
ISOTEC offers in-situ heavy metals treatment via two technologies – calcium polysulfide (CaSx or CAPS) and ISOTEC Fe catalyst (AB24). Additional reagents utilized include FerroBlack®, sodium metabisulfite and sodium thiosulfate. In-situ chemical reduction treatment is a comparatively economical and rapid alternative to pump-and-treat. Furthermore, complex subsurface mixes of heavy metals and organic contaminants (e.g. VOCs, SVOCs) can be treated simultaneously using a combination of ISOTEC’s proprietary technologies.
Comparative laboratory bench-scale studies are designed and conducted at our research facility to identify the most suitable reagent and optimal reagent dosing. Based on treatability study results, a site-specific treatment program is designed and implemented. Depending on the size of your site, most treatment programs are completed in a matter of days to a few weeks. As always, ISOTEC’s two decades of injection experience and impeccable safety and performance record ensures the best possible outcome for your site.