Table 1

Test conditions.

MaterialCodeTailings weight (g)Sludge weight (g)Silica sand weight (g)Deionized water addition (ml)Acid rain addition (ml)
Mixture of sulphidic tailingsA1500500250
and silica sand (1:1)A2500500250
Mixture of sludgesB1500500250
and silica sand (1:1)B2500500250