ECS-MB Benchtop Lab-Scale Electrodialysis (ED) Testing System, CMBBLSEDTS

A Benchtop Lab-Scale Electrodialysis (ED) Testing System is a compact, highly versatile electrochemical separation unit designed for academic research, feasibility studies, membrane screening, and small-volume wastewater treatment, desalination, or mineral extraction process development.

The key components of the ED testing system are: (1) Membrane Stack ("The Heart"): Configured with alternating Anion-Exchange Membranes (AEMs) and Cation-Exchange Membranes (CEMs)—such as low-resistance hydrocarbon or perfluorinated sheets—separated by specialized flow-distributing gaskets/spacers to create repeating cell pairs (Diluate and Concentrate chambers). The end plates constructed of rugged transparent materials (like acrylic or PTFE) coupled with titanium or DSA (Dimensionally Stable Anode) current-collector electrodes. (2) Fluid Handling & Hydraulic Loops: (i) Multi-Channel Peristaltic or Magnetic Drive Pumps: Independent closed-loop or open-loop circulation circuits for the diluate stream, concentrate (brine) stream, and electrode rinse solution (typically maintained separately to prevent chlorine gas evolution or pH polarization at the electrodes). (ii) Feed Reservoirs: Pyrex glass or polypropylene tanks (typically 0.5 L to 2.0 L capacity for lab-scale systems) equipped with sampling ports and temperature probes. (3) Instrumentation & Control Package: (i) DC Power Supply: High-stability, low-ripple DC source operating under constant current or constant voltage modes. (2) Inline Sensors: Real-time digital monitoring for conductivity (to track ion depletion/desalination kinetics), pH (to monitor water splitting or acid/base generation), and temperature. (iii) Pressure Gauges & Flow Meters: Rotameters or digital mass/volume flow sensors paired with needle valves to balance hydraulic pressures across the delicate membrane stack and prevent internal cross-leaks.

Part Number	CMBBLSEDTS (CMB-BLSEDTS)
Input Power/Voltage	AC220V±10%, single-phase, 50/60 Hz, 800 W Output DC voltage: 16 V; output DC current: 10 A
Testing Cells	(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 Active Area: 20cm*10cm
Flow Pump	Flow pump speed: 1-30 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 CEEHBPM, CEEANCEM AEM: such as CEEANAEM
Note	The cell components should be thoroughly cleaned and dried after use.

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