Electrodialysis Desalination Titanium Electrode

Electrodialysis desalination titanium electrode

Substrate: Pure titanium ASTMB265-Gr1

Coating: ruthenium-based, iridium-based, platinum (selected according to the environment and life requirements of the electrode provided by the customer)

Electrodialysis: Desalting / desalting (selective permeability of ion membrane)

Operating pressure: 0.5 ~ 3.0kg / cm2

Current voltage 100 ~ 250V, 1 ~ 3A

Body power consumption: 0.2 ~ 2.0 ° per ton of fresh water

Requirements: the electrode material is resistant to both oxidation and reduction (inverted)

Electrodialysis desalination is achieved by electrodialysis desalination. Under the action of an external DC electric field, when raw salt water flows through a compartment composed of anion, cation exchange membrane, and separator, the anions and cations in the water begin to directionally move. Anions migrate toward the anode and cations migrate toward the cathode. Due to the selective permeability of the ion exchange membrane, the fixed exchange group of the cation exchange membrane (referred to as the cation membrane) is negatively charged. Therefore, the cations in the water are allowed to pass through and the anions are blocked. The fixed exchange group of anion exchange membrane (anion membrane for short) is positively charged. Therefore, the anions in the water are allowed to pass and the cations are blocked, causing the ions in the fresh water compartment to migrate to the concentrated water compartment, thereby achieving the purpose of desalination.

Electrodialysis desalination is widely used in food, light industry and other industries to make pure water; pretreatment of electronics, medicine, chemical and other industries to obtain high-purity water; primary softening and desalination of boiler feed water; seawater desalination for drinking water and certain chemical products. Desalination and so on.

Electrode material is one of the key components of electrodialysis desalination. This electrode material is required to be resistant to both oxidation and reduction, that is, it can be used as both an anode and a cathode, but general electrode materials cannot meet this requirement. For example, graphite electrodes will be badly corroded and have a short working life. The coated titanium electrode produced by Shaanxi Elite can perfectly solve the above problems. Its low chlorine evolution potential, high oxygen evolution potential, long life, high electrolytic efficiency, and can greatly reduce customers’ operating costs.

Advantages of titanium electrode for seawater desalination by electrodialysis:

• 1.High current efficiency and good energy saving effect
• 2.Excellent corrosion resistance
• 3.After the active layer is deactivated, it can be recoated and the substrate can be reused.
• 4.Long electrode life
• 5.Titanium electrode has light weight and good dimensional stability
• 6.Can be made into any complex shape and size to meet actual needs