What are general combinations of resins to achieve
reduction in dissolved solids?
There
are various possible combinations and arrangements of ion-exchange resins. Each
resin or combination is effective for controlling a particular parameter more
effectively. It is recommended to consult a water treatment equipment supplier
for appropriate selection. The few resins are:
|
Resin
|
Function
|
|
Zeolite Softener
|
To remove hardness i.e. Ca, Mg
|
|
Weak Acid Cation (WAC)
|
To remove the weak acid cations, i.e. hardness, Ca++
or Mg++ associated with
alkalinity OH-, CO3--, and HCO3--
|
|
Strong Acid Cation (SAC)
|
To remove all the cations & anions including Ca++,
Mg++, Na+, K+
|
|
Weak Basic Cation (WBC)
|
To remove salts of strong acids, SO4--, C l-,
NO3-
|
|
Strong Base Anion (SBA)
|
To remove all anions including SiO2 and CO2
|
|
Mixed Bed (MB)
|
It is a mixture of SAC and SBA resins. The function is to polish
and remove residual remaining ions in water.
|
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