EDI WATER TREATMENT

Electrodeionization Water Treatment
EDI module is usually placed behind the reverse osmosis system, which not only
overcomes the lack of deep desalination of reverse osmosis effluent, but also
further removes trace carbon dioxide, residual salt, silicon dioxide, boron and
total organic carbon plasma in RO water, greatly improving the quality of
purified water.

It is widely used in biotechnology, pharmacy and other industries that must
generally comply with and comply with USP, EP, JP and ChP regulations.

※ Post EDI Ultrafiltration

※ A post EDI UF System with 6000 Daltons Molecular Weight Cutoff membranes
serves to produce highly purified water having a compliance with low endotoxin
values.

※ A post EDI UF can have a TOC reduction UV with 194 nm wavelength or 254 nm
wavelength for bacterial control as an option.

Specification of EDI Water Treatment System
Water inflow requirements
TEA（with CO2） <25mg/L as CaCO3
Hardness <1mg/L as CaCO3
TOC <0.5mg/L
Temperature 5-43℃
PH 5-9
Silicon <0.5mg/L
Free Chlorine <0.05mg/L
Water inlet pressure 30-100psi
Fe,Mn,H2S <0.01mg/L
Rate of recovery 90-95%

How Does EDI Water Treatment Works?
Process Principles

Enhanced transfer regime (high salinity)

– Remove strong ions from water

Electroregeneration regime (low salinity)

– Remove ionizable species (weak acids or weak bases) from water

FEATURES OF EDI WATER TREATMENT
01.
The most cost-effective way to upgrade RO purified water system (PW) to high
purified water system (HPW).

02.
Effective minimum flow interlocking and current overload protection device.

03.
Excellent water quality performance under different working conditions.

04.
Front and rear UV devices (optional), thermal disinfection module (optional).

05.
PLC+HMI full-automatic control mode.

06.
Fully comply with GMP, USP and cGMP requirements.

If you want to know more types of pharmaceutical water purification system,
please visit our website.

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