Silver mine-to-refinery guide
Acid Rock Drainage
How sulfide mineral oxidation can create acidic, metal-bearing drainage.
Mine-to-refinery note: mineralogy, site conditions and the approved flowsheet determine real operating requirements. This site explains system relationships rather than field procedures.
What this topic covers
How sulfide mineral oxidation can create acidic, metal-bearing drainage.
Core mine-to-refinery ideas
Some mine wastes contain sulfide minerals that oxidize when exposed to air and water.
Acidic conditions can increase mobility of metals into drainage.
Prediction and prevention require site-specific geochemical characterization.
Important tradeoffs
Geochemical behavior can change after rock is excavated, ground and exposed to air and water.
Measurement and accounting
Closure planning and monitoring should begin before production ends.
Lifecycle perspective
Tailings facility design, remediation procedures and treatment chemistry require site-specific specialists.