Remediation of Chromium‐Containing Soils by Heap Leaching: Column Study

In-situ chromium and vanadium recovery of landfilled ferrochromium and stainless steel slags

“…Heap leaching has also been investigated as a possible route to remediate heavy metal contaminated soils [26]. Heap leaching technology is low cost and flexible, and could therefore be suitable to treat low-grade mineral waste streams.…”

Hazardous waste treatment technologies

“…Ikenberry and Ikenberry ( 1993) reported that a patented system is now available for extracting contaminants from soil stack by heated air. Hanson et al (1993) used a heap-leaching technique to remediate chromium-containing soils. More than 99% of Chromium (VI) was removed from the typical arid climate soils using tap water as the leaching agent.…”

Foam, a promising vehicle to deliver nanoparticles for vadose zone remediation

“…In addition, the injected liquids may preferentially percolate through highly permeable pathways and bypass low permeability zones that may contain the majority of the contaminants. Finally, the contaminants retained in vadose zone may be easily mobilized by the flushing solutions [18][19][20], leading to contamination spreading that makes the underlying aquifers even more vulnerable.…”