Model EDI Pure - Pharma Continuous ElectroDeionization Unit
From Technologies
Construction of CEDI Module
CEDI-modules consist of two diff erent functional type of compartments within a single stack. The product as well as the reject compartments are fi lled with ion exchange resin and are located side by side, with cation and anion selective membranes in between.
Feed water entering the CEDI stack flows parallel to the membrane surface. Resin capture dissolved ions. Electric potential drives captured cations through cation membranes and captured anions through anion membranes. The cationpermeable membranes prevent anions from leaving concentrating compartments. Visa versa anion-permeable membranes prevent cations from leaving the concentrating compartments.
Specific Features
NO chemicals needed for regeneration
Unlike traditional DI systems, CEDI unit does NOT need acid or caustic chemicals for regeneration. This means safe operation and no hazardous waste or neutralisation equipment.
Consistent ultra pure water
Due to continuous electrical regenerating the resin never gets exhausted. The product quality is consistent, week after week, month after month, without the necessity of taking the system out of operation.
Low operational costs
The CEDI unit can operate in continuous mode with low energy consumption and does not need any frequent maintenance.
Typical markets for Pharma CEDI
- Pharmaceutical - Cosmetics
- Hemo Dialysis
- Hospital Pharmacy
The compact sanitary Pharma CEDI unit is manufactured according the guidelines of the FDA / ISPE Baseline Pharmaceutical Engineering Guide for Water and Steam Systems.
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