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15
CH3041
REMEDIATION
• Separation : sluicing or hydrocycloning separates acid sulphate fines from non-acidic sulphate material, follow by (2.) Prevent Oxidation or (3.) Treat.
• Hastened oxidation : Spread a layer on impervious ground, collect leachate then (3.)
• Stockpiled & managed : minimise the quantity and duration of storage, minimise the surface area exposed to air, cover to minimise infiltration, divert stormwater runoff, control erosion, collect & (3.) runoff.
• On-site treatment is preferable to off-site
disposal, licensed land fills not appropriate.