Cyanide Heap Leaching Residue
nounPronunciation: /ˈsaɪənɑɪd hip ˈliːtʃɪŋ ˈrɛzɪˌduː/
Solid and liquid remnants from industrial gold and silver extraction processes using cyanide solutions, which may retain residual cyanide and require comprehensive detoxification and containment during reclamation. Proper management prevents cyanide mobilization into groundwater and surface water.
Plain English
Leftover material from gold mining using cyanide that may still contain toxic cyanide compounds needing safe disposal.
Etymology & History
Usage
"The reclamation scope included destruction of cyanide heap leaching residue through oxidation treatment."
Style guide notes: Always reference relevant cyanide management codes (e.g., International Cyanide Code) when discussing residue handling.
Also known as
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Related Terms
Frequently Asked Questions
What risks does cyanide residue pose during reclamation?
Residual cyanide can leach into groundwater, volatilize as hydrogen cyanide gas, and harm wildlife and human health.
How is cyanide residue destroyed or neutralized?
Methods include oxidation with hydrogen peroxide, alkaline chlorination, biodegradation, and encapsulation in sealed containment.
Why Test Candidates on This?
Cyanide residue management is essential for senior-level reclamation professionals and environmental compliance specialists.
Required skill level: Senior