ECS-MB Medium Electrodialysis (ED) Testing System, CMBMEDTS

A medium-scale (bench-to-pilot transition) Electrodialysis (ED) or Bipolar Membrane Electrodialysis (BMED) testing system sits squarely between a micro-volume desktop unit and a large industrial skid. It is engineered for advanced R&D, process optimization, and small-batch production validation—providing realistic hydrodynamic and mass-transfer data without requiring large fluid volumes.

The typical structural features of the medium electrodialysis testing system are: (1) Membrane Stack Capacity: Typically houses 10 to 30 cell pairs (compared to 5–10 in micro-bench units and 50–200+ in industrial stacks). Effective membrane active area per sheet ranges from 100 cm2 to 200 cm2 (e.g., standard 10 cm* 10 cm or 15 cm * 20 cm frames). (2) Processing Volume & Flow Rate: Designed for batch volumes of 10 L to 50 L per run, operating with recirculation flow rates between 1 L/min and 10 L/min to simulate real-world linear velocities and turbulence promoter efficiency. (3) Electrical Requirements: Typically paired with a DC power supply ranging from 0-30 V to 0-50 V at currents up to 10 A to 20 A, accommodating higher ionic loading than basic desktop cells.

The main application fields are: (1) Process Scale-Up & Kinetic Modeling: Generating reliable limiting current density curves, electrical resistance profiles, and specific energy consumption data (kWh/m3) needed to design full-scale industrial ED plants. (2) Organic Acid & Fine Chemical Deacidification: Purifying high-value fermentation broths, pharmaceutical intermediates, or food process streams by selectively removing inorganic salts without altering neutral organic components. (3) Targeted Ion Recovery & Wastewater Polishing: Concentrating specific heavy metals, mining leachates, or valuable alkali salts from industrial effluent streams down to strict discharge or recovery limits.

Part Number	CMBMEDTS (CMB-MEDTS)
Input Power/Voltage	AC220V±10%, single-phase, 50/60 Hz, 2000 W Output DC voltage: 50 V; output DC current: 30 A
Testing Cells (Optional and Customizable, purchase separately)	(1) Testing cell with two chamber design (20cm*10cm) that can be used for the following conditions:               (i) CEM + AEM mode                           (ii) BPM + CEM mode                              (ii) BPM + AEM mode                                  (2) The testing cell with three chambers that is composed of bipolar membrane, AEM, CEM, polar membrane, and polar plate.     Chamber Material: Graphite manifold Sealing Gasket: PTFE Membrane Size: (1) 20cm*10cm (active area is 10cm*7.5 cm); (2) 30cm*14cm (active area is 15cm*10cm); (3) 40cm*20cm (active area is 20cm*15cm) Larger sizes can be customized upon request
Water Tank Volume	4 L Minimal circulation volume is 1 L
Flow Pump	Flow pump speed: 1-50 mL/min Four separated flow channes Reservoirs and tubing are included for systematic testing
Control Unit	PLC control system is used for integrating of operation functions HMI touch screen for convenient operation
Membranes for ED (Optional)	CEM: such as CEEANCEM, CEDHCEMCMHE AEM: such as CEEANAEM, CEDHAEMAMHN BPM: such as CEEANBMBPU, CEEHBPM
Dimension	L700mm * W600mm * H900mm
Weight	~80 kg

References:

1. S. Abu Khalla, et al., Desalination via chemical energy: An electrodialysis cell driven by spontaneous electrode reactions, Desalination, 2019, 467, 418-427. 

2. M. Amores, et al. Electrodialysis as a Method for LiOH Production: Cell Configurations and Ion-Exchange Membranes, Adv. Sustain. Mater., 2025, 9, 2400402