Flow patterns concentrate recycle

Fig. 7.16 Three flow patterns for electrodialysis cells to reduce salt concentration from 3200 mgdm to 400 mg dm" The relative currents in each stack are shown, (a) Eight pairs of membranes in series in one stack, (b) Three stacks in series, each stack with N pairs of membranes, (c) Batch process with recycle through one stack.

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