Article | REF: J2784 V2

Ion Exchange – Operation technologies

Author: François de DARDEL

Publication date: June 10, 2016, Review date: September 14, 2020

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4. Calculation of a water treatment plant

4.1 Water analysis

Calculations for water treatment plants using ion exchangers call on a number of simple concepts concerning the composition of the water to be treated.

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4.1.1 Units

Ionic concentrations are usually measured in equivalents per liter (eq/L) and milliequivalents per liter (meq/L), with 1 meq = 10 -3 eq (1eq = 1mole/valence). The following units are also used:

  • French degree: 1°f = 0.2...

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Calculation of a water treatment plant