Research Article

Oxidative Precipitation of Manganese from Acid Mine Drainage by Potassium Permanganate

Figure 3

Effect of pH on the manganese removal with KMnO4 from AMD effluents, A1 and A2. Temperature, 25°C ± 0.5. The dotted line represents the limit for manganese discharge (i.e., 1.0 mg/L) set by CONANA Resolution 430 [4].
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