Electro-Dialysis Salt Removal

Electro-dialysis removes ions from water using ion-exchange membranes and an applied electric field; salt removal depends on current, time, membrane area, and feed concentration.

Concept

Removed mass ∝ current × time × transport number; efficiency depends on recovery and system design.

Example

Increasing current or run time boosts ion transport; scaling membrane area increases throughput.

FAQs

Energy use?
Depends on voltage, current, and system resistance.

Selectivity?
Membrane choice affects which ions are removed.