Mercury Transport in a Soil-bentonite Backfill for Slurry Trench Cutoff Walls
This study demonstrates that soil-bentonite backfill mixtures, specifically those using Colombian bentonite to achieve low hydraulic conductivity, effectively retain over 94% of mercury from contaminated solutions through significant sorption, making them a viable barrier material for mitigating mercury transport in artisanal gold mining tailings ponds.