What does “acidity + alkalinity” represent in the acid consumption calculation formula?
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What does “acidity + alkalinity” represent in the acid consumption calculation formula?
The formula for calculating acid consumption is: Amount of acid used (liters) × specific gravity × percentage concentration × 1000. Acid consumption =—————————————————— Water production volume (tons) × (acidity + alkalinity). In this formula, acidity refers to the acidity at the outlet of the cation exchange resin, expressed in mmol/L. Alkalinity is the average alkalinity at the inlet of the cation exchange resin, expressed in mmol/L. Alkalinity represents the total amount of bicarbonate cations in raw water, while acidity represents the total amount of cations bound to strong acid anions in raw water. Therefore, “acidity + alkalinity” represents the total amount of cations in the water at the inlet of the cation exchange resin bed (raw water).