Heap Leaching Pad
nounPronunciation: /ˈhip ˈliːtʃɪŋ ˈpæd/
A lined surface area where crushed ore is stacked and percolated with leaching solutions to extract valuable metals, typically gold or copper. Abandoned pads require environmental assessment due to residual chemicals and metal concentrations in pad materials.
Plain English
A lined ground area where crushed ore is treated with chemicals to extract metals, requiring reclamation cleanup.
Etymology & History
Usage
"The abandoned heap leaching pad contained residual cyanide requiring specialized decontamination during mine reclamation."
Style guide notes: Hyphenate 'heap-leaching' when used as a compound modifier before 'pad' or other nouns.
Also known as
Contrasted with
Related Terms
Frequently Asked Questions
What environmental concerns do abandoned heap leaching pads present?
Pads may contain residual leaching chemicals, metals, and acidity requiring contamination assessment and remedial action.
How are heap leaching pads reclaimed?
Reclamation involves characterizing contaminants, stabilizing materials, managing runoff, and implementing long-term monitoring protocols.
Why Test Candidates on This?
Heap leaching pad reclamation is commonly assessed in mine closure planning and contaminated site remediation scenarios.
Required skill level: Mid