EDI Su Arıtma Nedir? | What is EDI Water Treatment?

EDI Su Arıtma Nedir? | What is EDI Water Treatment?

Kısa cevap / Short answer: EDI (Electrodeionization) is a continuous ion-removal process that combines ion-exchange resin and electricity to polish reverse osmosis permeate—producing high-purity water without acid/caustic regeneration chemicals.

What is EDI Water Treatment?

EDI modules contain mixed or separate cation/anion resin chambers between selective membranes. A DC electric field drives ions out of the water stream into concentrate channels. When placed after RO systems, EDI achieves conductivity levels suitable for pharmaceutical, microelectronics and high-pressure boiler applications.

RO + EDI Treatment Train

1. Pre-filtration and softening
2. Single or double-pass RO (conductivity <10–20 µS/cm)
3. EDI polish (<0.1 µS/cm achievable)
4. UV sterilization and loop distribution (if potable/USP)

EDI Advantages

• No chemical regeneration — lower OPEX and HSE risk
• Continuous operation, suitable for 24/7 plants
• Compact footprint vs conventional mixed beds
• Predictable quality for automation and validation

When to Choose EDI vs Mixed Bed Resin

Explore high-purity water solutions or pharmaceutical water systems.

Sıkça Sorulan Sorular (FAQ)

What is EDI water treatment?

EDI (Electrodeionization) is a polish technology that removes remaining ions from RO permeate using ion-exchange resins and an electric field—without chemical regeneration.

EDI nerede kullanılır?

İlaç, elektronik, güç santrali ve laboratuvar uygulamalarında ultrapure su üretiminin son aşamasında RO sonrası polish olarak kullanılır.

EDI ile mixed bed farkı?

Mixed bed reçine kimyasal rejenerasyon gerektirir; EDI sürekli çalışır, otomasyona uygundur ve kimyasal atığı azaltır.

EDI giriş suyu kalitesi?

EDI öncesi RO permeat iletkenliği genelde <20 µS/cm olmalıdır; aksi halde modül ömrü kısalır.

EDI çıkış kalitesi?

Tek modül EDI <0,1 µS/cm; çok kademeli sistemler <0,055 µS/cm (18 MΩ·cm) ultrapure su üretebilir.