Figure 8-4. Two-unit variation Desal Process.
removed. For many small users, such as laboratories,
A typical cation-anion two-bed demineralization flow
replaceable mixed-bed ion-exchange cartridges are the
sheet is shown in figure 8-5. The cost of ion-exchange
most economical method used to obtain ultrapure water.
regeneration, including regeneration waste disposal, is
directly related to the amount of dissolved solids to be