EDI Ultra Pure Water Purification Equipment Plant Machine System

EDI technology
In the electrodialysis process, compartments are sandwiched between a series of anion- and cationsselective membranes . Anions can pass through the anionic membranes, and are rejected by the cationic membranes. Cations, on the contrary, can pass through the cationic membranes and are rejected by the anionic membranes. Thus, desalting (product) compartments and concentrate (reject) compartments are formed. At each end of this “sandwich” is a pair of electrodes, to which an electrical field is applied to attract ions. During theprocess,electrolysis of water produces hydroxide (OH-) and hydronium (H+) ions.

Continuous demineralization in the EDI module consists of three coupled processes:

l Ion exchange

l Continuous ion removal

l Continuous ion exchange resin regeneration

Feed water requirement

Resource: RO water, conductivity < 20 u s/cm, better < 10u s/am;
PH:6.5-9.0

Water temperature:5- -35"C

Hardness(as CaCO3): <0.5ppm

Organics: < 0.5ppm,TOC recommended to be 0 ppm

Oxidizers: < 0.05ppm,Cl.:0.05ppm,O-:0.02ppm,better both to be 0 ppm
Metals: < 0.01ppm

Silica: < 0.5ppm

Carbon dioxide: < 5ppm

Oil: not detectable

EDI water treatment system Advantage

Using the technology of middle partition full fill, good water quality.

- It is easy to operate without salt and heavy water circulation.

- Excellent electrical performance, high current efficiency, low voltage, low energy consumption.

- Line the lines side by side, two entry and two out of standard thread excuse, easy to install.

- Perfect structural design to ensure zero leakage.

EDI water treatment system Application

Boiler feed water for power, chemical and metallurgical industries.

- Super pure water for electronics, semiconductors and precision machinery.

- Water for chemical process.

- Medical water.

- Ultra pure lab water.

SMALL EDI
TECHNICAL PARAMETER

HP SERIES EDI
TECHNICAL PARAMETER

LX SERIES EDI
TECHNICAL PARAMETER