The Electrodialysis Membrane Stack Developer and Manufacturer in China

Homogeneous Electrodialysis Membrane Stack

Electrodialysis refers to the directed migration of ions in a solution under the action of a direct current electric field, selectively passing through an ion exchange membrane and removing charged ions from the solution. A physicochemical process that separates solute from water by using the potential difference as a driving force and utilizing the selective permeability of the anion and cation exchange membranes to the anion and the cation. It can realize the desalination of brackish water or seawater, salt concentration, desalting and refining of organic solution.
In electrodialysis, there are a cation exchange membrane that allows only cations to pass through and an anion exchange membrane that allows only anions to pass through, and the two ion exchange membranes are alternately arranged to constitute a desalination chamber and a concentration chamber. The electrodialysis membrane assembly is composed of a main component such as a separator, an ion exchange membrane, an electrode, and a clamping device.

Characteristics of Electrodialysis Membrane Stack

  • High selectivity to the separated components;
  • low energy consumption and low engineering investment;
  • continuous operation, high degree of automation;
  • The concentration of salt is higher and the water recovery rate is higher;
  • not changing the properties of the solution due to chemical action and thermal degradation;
  • No regeneration is required, no chemicals are required, and the pretreatment requirements are low.


 Membrane Unit
  Desalination Membrane Unit Standard Membrane Unit Concentration Membrane Unit
Membrane sheet size (mm) 550*1100 400*800 550*1100 400*800 550*1100 400*800
Single desalination rate (%) 50--60 30--40        
Membrane sheet pairs  50-600 10-200 50-600 10-200 50-600 10-200
Desalination capacity per unit (kg/h)     25/50/100/150 6.25/12.5/25 25/50/100/150 6.25/12.5/25
Stardand pairs 100/200/400/600 50/100/200 100/200/400/600 50/100/200 100/200/400/600 50/100/200
Effective area(m2) 46/92/184/276 12.5/25/50 46/92/184/276 12.5/25/50 46/92/184/276 12.5/25/50
Inlet water flow(m3/h) 5/10/20/30 1.5/3/6 5/10/20/30 1.5/3/6 5/10/20/30 1.5/3/6
Max. concentrated water concentration (g/L) 50 50 150 150 200 200
Optimum operating temperature (℃) 20--35 20--35 20--35 20--35 20--35 20--35
Service life (years) 3--5 3--5 3--5 3--5 3--5 3--5


1. The electrodialysis device is mainly used in the physical and chemical processes of material concentration, purification and separation. For example, water desalination and desalination, seawater concentration, salt production, refined dairy products, juice deacidification and purification, production of chemical products, etc., electrodialyzers can also be used in food, light industry and other industries to produce pure water, electronics, medicine The pre-treatment of high-purity water produced by other industries. Primary softening and desalination of boiler feed water will desalinate brackish water into drinking water.
2. The electrodialysis device is suitable for water supply treatment in industries such as electronics, medicine, chemical industry, thermal power generation, food, beer, beverage, printing and dyeing and coating.
3. Electrodialysis can also be used for the treatment of wastewater and waste liquid and the recovery of precious metals, such as the recovery of nickel from electroplating waste liquid.


1,In order to ensure the stable operation of the device, avoid working in an environment filled with dust and corrosive gas, away from the heat source, the relative humidity is 5~70%, and the ambient temperature is 5~40°C. The membrane organizer stops running, and the interior generally needs to be filled with the solution. If it is not used for a long time, the membrane assembly may be dehydrated due to evaporation or leakage of water, and water is supplied at least once every two months. Do not place any objects on the upper end of the membrane organizer to prevent short circuit or electric shock. When not working, cover the dust cloth.
2,The membrane in the membrane stack should always be kept moist;
3,When the system is shut down for a long time, the membrane module should be immersed in the protective liquid to avoid microbial growth. The standard preservation solution contains 1.5% by weight of sodium bisulfite (food grade);
4,Avoid back pressure on the water side of the product at all times.

Ion Exchange Membrane

Bipolar Membrane BPM

Cation-exchange Membrane CEM

Anion-exchange Membrane AEM

Bipolar Electrodialyzer

Electrodialysis Device

Electrodialysis Device for Lab Testing

Skid-Mounted Electrodialyzer

PFSA Membrane(IEM)

Perfluorinated IEM SY-11P

Perfluorinated IEM SY-12P

Perfluorinated IEM SY-13P

Perfluorinated IEM SY-14P

Perfluorinated IEM SY-15P

Graphene Perfluorinated IEM SY-11GP

Perfluorinated IEM for Flow Battery

Ion Exchange Membrane for Fuel Cell

Perfluorinated IEM for Water Treatment

PTFE Enhanced Perfluorinated IEM

Perfluorinated IEM for Electrolysis

Hydrogen-rich Water Cup Membrane

Chlor-Alkali Membrane(CAM)

Electrodialysis Stack

Bipolar Membrane Stack

Acid-Base Generator and Maker

Diffusion Dialyzer

Ion-exchange Resin

Ion-exchange Resin Solution/Dispersion


Our Mission

Continuously provide the Ion-Exchange Membrane with lower energy consumption and excellent performance for Green Energy and Electrodialysis Industries
Continuously improve the technology of environmentally friendly

Contact Us

 Dongfeng Street, Weifang Shandong China

 (0086) 536-821-6345