WebDefinition. The relative activity of a species i, denoted a i, is defined as: = where μ i is the (molar) chemical potential of the species i under the conditions of interest, μ o i is the (molar) chemical potential of that species under some defined set of standard conditions, R is the gas constant, T is the thermodynamic temperature and e is the exponential constant. WebThe first water molecules entering the membrane hydratize the solid ions. This water uptake proceeds until an equilibrium value, ... A further possibility to utilize the separated ions from an elementary unit is the application of a bipolar membrane. 6. Literature [1] P. Maeres, NATO ASI Ser., Ser. C (1986) 169
Ionpure® Continuous Electrodeionization (CEDI) for water purification
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Drinking Water Treatment – Anion Exchange Units
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