The Ionics* 3CBPED Stack is an electrodialysis stack, specially-designed with three compartments and bipolar membranes. The stack can be used to split non-organic salts, producing separate acid and caustic streams.

Within the stack, an electric current is used to move anions through anion-selective membranes, cations through cation-selective membranes, and to split water into H+ and OH- ions. With the 3-compartment stack design, this generates two product streams (one acid and one caustic) and a dilute salt stream.

Stack Features

• 200 cells of Ionics Bipolar Membranes used for salt splitting along with Ionics AR118U and CR61N.
• Total active membrane area of 64 m2 per type
• Dual-entry stack to deliver consistent flow and pressure.
• Robust stack design that is capable of CIP and can also be easily removed and disassembled for cleaning, maintenance, and component replacement if needed. Spare parts can easily be stored on site.
• Integrated electrode chambers; no requirement for external electrode feed plumbing and control loop.