EDIElectric desalination system

EDI（Electro-deionization）Also known as continuous electric desalination technology, it is widely used in industries such as power, electronics, chemical, pharmaceutical, etc. to produce ultrapure water.EDICan replace traditional ion exchange（MB-DI）Technology, stable production quality up to18 MΩ·cmUltra pure water,EDIThe system's water production process does not require chemical regeneration and can continuously produce high-quality ultrapure water. With advanced technology, compact structure, stable operation, easy operation, and low operating costs, it is a green revolution in water treatment technology.

EDIUsing YinCation membranes are symmetrically stacked, with anion and cation resins sandwiched between them. Under the action of direct current voltage, anion and cation exchange occurs, while under the action of voltage gradient The electrolysis of water produces a large amount of waterH+andOH-Continuously regenerating the anions and cations in the middle of the ion exchange membrane, due toEDIContinuously exchanging (regenerating) to increase the purity of water, thereby producing high-purity water.

Product advantages

◆ No need for acid-base regeneration, cost saving, and no discharge of pollutants.

◆ Regeneration does not require shutdown and can operate stably for a long time.

◆ The effluent quality has the best long-term stability.

◆ Low energy consumption, only consuming electrical energy without any other consumables.

◆ Small footprint, modular production, fully automated.

◆ Multiple membrane stacks can be combined to increase water production.
◆The effluent quality can reach 10-18M.

EDIWater quality requirements for water supply

Water treatment:Level 1 or Level 2ROwater production

electricity guide Rate:≤20μs·cm(Best<)10μs·cm）

PH Value:6.0-9.0(Best)7.0-9.0）

water Wen Degree:5-45℃

hard Degree:＜0.5ppm

have machine Object:< 0.5ppm，TOCSuggested value is zero

oxygen transform Agent:< 0.05ppm（Cl2），< 0.02ppm（O3）

Manganese iron ions:< 0.01ppm

silicon dioxide:＜0.5ppm

carbon dioxide:＜5.0ppm

Oil or grease:Not detected

EDIThe main application scope

◆ Semiconductors, glass shells, liquid crystals Preparation of ultrapure water for pharmaceuticals, medical hemodialysis, biochemical analysis, infusion, etc;

◆ Softened water and desalinated pure water required for power generation boilers and high and low pressure boiler feedwater;

◆ Electroplated deionized water 、 Battery production process: pure water, automotive/household appliances/Pure water for surface coating and cleaning of building materials;

◆ Coated glass, printing and dyeing desalination water, petrochemicals, chemical agents, fine chemicals, cosmetics process pure water;

◆ Ultra pure water and useless ultra pure water in the anti-static industry;

◆ Desalination of seawater and brackish water;