A lab treatability study was conducted to determine the optimal MetaFix reagent formulation and dosing rate to treat the four heavy metals of concern: As, Cd, Pb, and Zn.
China
Arsenic
The target treatment zone at the site is the top 20 cm soil layer of a 13,340 m2 area with a total volume of 2670 m3. In February of 2015 the site was treated with 1% (wt/wt) MetaFix reagent. The soil was crushed and sieved, then treated in batches by mixing MetaFix product directly into soil using an excavator. Then water was added to close the water holding capacity. The treated soil was ready for inspection sampling after 7-day anaerobic reaction period. The official post-treatment inspection report is not yet available, although according to client’s self-inspection analysis, the stabilization performance is consistent with lab test results and deemed satisfactory.
MetaFix was applied at various dosages (0.5%, 1.0%, and 2.0% w/w) to compare field performance of mercury stabilization via SPLP testing.
A lab treatability study was conducted to determine the optimal MetaFix Reagents formulation and dosing rate to treat the highly contaminated soil samples.
A lab treatability study was conducted to determine the optimal MetaFix reagent formulation and dosing rate to treat the highly contaminated soil samples with a total arsenic concentration of 21,700 mg/kg.
EHC Metals Reagent is now a part of the MetaFix portfolio of customizable reagents. EHC Metals effectively treated TCE and immobilized Cr(VI) from groundwater to below detection limits at a manufacturing facility in Washington state.
EHC Metals Reagent is now a part of the MetaFix portfolio of customizable reagents. EHC Metals Reagent has been shown to effectively immobilize lead (Pb) from groundwater at a former battery recycling facility in Brazil.
