ARD Prevention
nounPronunciation: /ˌeɪ ɑr ˈdi prɪˈvenʃən/
Preventive measures implemented during mine closure to minimize or eliminate the generation of acid rock drainage by isolating sulfide minerals from water and oxygen. Strategies include water cover, dry covers, blending high-sulfide waste with alkaline materials, and encapsulation.
Plain English
Methods used to stop acidic water formation by preventing sulfide minerals from contacting air and water.
Etymology & History
Usage
"ARD prevention through saturated cover placement was prioritized in the closure plan to achieve perpetual water quality protection."
Style guide notes: Use full term 'acid rock drainage prevention' on first occurrence; ARD prevention acceptable thereafter.
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Related Terms
Frequently Asked Questions
What is the best ARD prevention method?
Water saturation of waste piles; prevents oxygen access while maintaining alkaline conditions.
Is ARD prevention permanent?
Saturated covers require perpetual water management; dry covers need maintenance for 100+ years.
Why Test Candidates on This?
ARD prevention strategy selection is assessed in closure planning and environmental management certifications.
Required skill level: Mid