Electrodeionization (EDI) is a next-generation water purification method that combines ion exchange resins with electrically active membranes to continuously remove dissolved ions without the need for chemicals. As a key part of the ultrapure water process, EDI water treatment delivers superior purity for industries with stringent quality demands such as pharmaceuticals, electronics and power.
WOG Technologies Limited provides advanced electrodeionization systems engineered for seamless integration into demineralization lines, typically post-reverse osmosis. Our EDI water purification systems are fully automated, energy-efficient and designed for consistent, high-performance operation.
The electrodeionization system operates by applying a direct current (DC) voltage across a series of ion-selective membranes and mixed-bed ion exchange resins. The ions are drawn out of the feedwater and transported through the membranes into adjacent concentrate compartments, effectively removing dissolved salts, silica, CO₂ and other impurities.
Key Components Include:
With decades of experience in high-purity water systems, WOG delivers electrodeionization EDI systems that are fully integrated, performance-guaranteed and compliant with global standards.
Custom made EDI system design based on water chemistry and application.
Seamless integration with RO, UF and pre / post-treatment stages.
SCADA-enabled monitoring for real-time quality assurance.
Built for scalability and 24/7 industrial reliability.
Full-service support: Design, commissioning, AMC and training.
Ready to switch to sustainable, chemical-free water polishing? Partner with WOG Technologies Limited to deploy next-gen EDI water purification systems customized for your industry’s compliance and purity needs.
EDI continuously regenerates its resins using electric current, eliminating the need for chemical regeneration and associated downtime, waste and hazards.
EDI systems require pre-treated water, usually reverse osmosis permeates, low in both hardness and organics, for optimal performance and longevity.
No. EDI is used after RO in a two-pass and single-pass configuration to polish the water and achieve ultra-low conductivity and high resistivity.
EDI systems have minimal maintenance needs. Routine checks include conductivity, flow and voltage / current to ensure that the system’s performance remains optimal.
Yes. WOG offers modular EDI plant water treatment packages ideal for both small industrial users and large continuous operations.
