Online Potassium Permanganate (KMnO4) Dose Calculator. The required potassium permanganate (KMnO4) dosage is calculated by adding the raw water's existing iron concentration and twice the existing manganese concentration.
KMnO4 Dose (mg/L) = 1(Iron concentration mg/L) + 2(Manganese concentration mg/L)
The final dose is expressed as mg/L.
Potassium Permanganate (KMnO4) Dose Calculator
Example: A water system's analytical results indicate an iron level of 4.1 mg/L and a manganese level of 0.84 mg/L. Determine the estimated demand of potassium permanganate.
KMnO4 dose = 1(4.1) + 2(0.84)
= 5.78 mg/L
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