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EDI (Electrodeionization)

EDI Water Treatment System for Ultrapure Water

Aperçu du produit

Electrodeionization (EDI) is a continuous, chemical-free water purification technology that combines ion exchange resins, ion exchange membranes, and direct current (DC) power to deeply deionize water. As the ideal polishing step following reverse osmosis (RO), EDI systems eliminate the need for hazardous acid and caustic regeneration chemicals used in traditional mixed-bed ion exchange. Our EDI modules and integrated systems reliably produce ultrapure water (UPW) up to 18.2 MΩ·cm, providing a safe, stable, and environmentally friendly solution for critical industrial applications.

EDI (Electrodeionization)

EDI Water Treatment System for Ultrapure Water

EDI technology provides a continuous, chemical-free polishing process to deliver stable 18.2 MΩ·cm ultrapure water for the most demanding industrial applications.

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Applications clés

  • RO Membrane

    Essential for semiconductor and microelectronics manufacturing, providing the ultrapure water (UPW) required for wafer fabrication.

  • RO Membrane

    Used in power generation for high-pressure boiler feed water, preventing scaling and corrosion in turbines.

  • Flat Sheet Membrane MBR

    Crucial for pharmaceutical and biotechnology industries to produce Purified Water (PW) and Water for Injection (WFI).

  • EDI (Electrodeionization)

    Applied in the chemical and petrochemical sectors to supply high-purity process water for sensitive chemical syntheses.

Why EDI Water Treatment Matters

Avantages en termes de performance

Transitioning from traditional mixed-bed resins to EDI offers transformative operational and environmental advantages for ultrapure water production.

Chemical-Free Operation: No acid or caustic regeneration chemicals required.

Continuous Production: DC power enables continuous resin regeneration with less downtime.

High Water Quality: Produces ultrapure water up to 18.2 MΩ·cm.

Lower Operating Costs: Reduces labor, chemicals, and waste treatment costs.

For facilities requiring a reliable, safe, and continuous supply of ultrapure water, EDI is the proven and modern replacement for traditional mixed-bed polishing.

EDI (Electrodeionization)

Faits marquants techniques

  • Ion Exchange Integration

    Utilise une structure polyamide multicouche pour maximiser la perméabilité à l'eau tout en maintenant une barrière exceptionnellement élevée aux sels dissous.

  • DC Power Regeneration

    Applies an electrical field to split water molecules, continuously regenerating the resin bed without chemical intervention.

  • Leak-Free Design

    Robust module construction ensures a leak-free operation, protecting sensitive surrounding equipment in high-tech facilities.

  • Advanced Controls

    Compatible with standard PLC and SCADA systems for real-time monitoring of resistivity, voltage, and flow rates.

Fabrication et qualité

Fabrication et qualitéIntro : En tant que fabricant en usine, nous contrôlons la fabrication des membranes, l'assemblage des modules et l'inspection dans le cadre d'un système de qualité documenté.

Hollow Fiber UF Membrane

Qualité

-Fabrication cohérente des membranes et assemblage des modules.

-Inspection et test d'intégrité avant expédition.

-Performances stables d'un lot à l'autre pour la cohérence du projet.

-Prise en charge des dimensions et des configurations personnalisées des modules.

Ce contrôle de la fabrication permet aux équipes EPC et aux opérateurs de réduire les incertitudes lors de l'installation et de la mise en service.

Cas de projets sélectionnés

Découvrez des projets réels de traitement de l'eau dans différentes applications, qui témoignent de notre expérience en matière de systèmes membranaires, de procédés de purification et de solutions pour les eaux usées.

Livraison et soutien

Les membranes UF à fibres creuses sont couramment intégrées dans les solutions suivantes :

  • Approvisionnement direct en usine pour les projets et les distributeurs

  • Fiches techniques et conseils d'intégration

  • Soutien à la préparation de la mise en service

  • Pièces de rechange et planification du remplacement

  • Assistance technique à long terme pendant l'exploitation

Hollow Fiber UF Membrane(3)

FAQ

Nous soutenons votre équipe sur place pendant la préparation du démarrage et de la mise en service, y compris :

  • What is the difference between EDI and traditional mixed-bed deionization?

    The primary difference is how the ion exchange resin is regenerated. Traditional mixed beds require the system to be taken offline and flushed with hazardous acids and caustics. EDI uses an electrical current (DC power) to continuously regenerate the resin while the system is running, eliminating chemical handling and downtime.

  • What feed water quality is required for an EDI system?

    EDI systems are highly sensitive to feed water quality and must be used as a polishing step. The feed water is typically the permeate from a single or double-pass Reverse Osmosis (RO) system, which has already removed the vast majority of suspended solids, organics, and dissolved salts.

  • Can an EDI system consistently achieve 18.2 MΩ·cm resistivity?

    Yes. When supplied with the correct RO permeate feed water and operated within the specified voltage and flow parameters, our EDI modules can consistently and continuously produce ultrapure water reaching the theoretical maximum resistivity of 18.2 MΩ·cm.

Get an EDI System Proposal

Share your project requirements and our team will recommend a suitable EDI configuration and integration approach.

Contacter notre équipe Demande de proposition

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