Mechanism of Silica Removal in Electrodeionization (Updated 2026)
The Electropure EDI technical model, and how to improve silica and boron removal
Power Generation
Pure Water is essential for Hydrogen
Ultrapure Water and Hydrogen Production for Fuel Cells Hydrogen (H₂) is a key fuel for hydrogen fuel cells, but it does not exist freely in nature. To make hydrogen available as an energy carrier, it must be produced through industrial processes—many of which depend on pure or ultrapure water. Method 1: Water Electrolysis Electrolysis splits … Read more
Mechanism of Silica Removal in Electrodeionization (2006)
Mechanism of Silica Removal in Electrodeionization (3-Zone EDI Model) Michael J Snow, Ph.D. May 2006 Keywords: Electrodeionization, EDl, CEDI, Water, Pure, Ultrapure, Silica, SiO2, Silicic acid, H4SiO4, Reactive; Non-reactive; Colloidal; Reverse Osmosis; lon-Exchange; Resin; Anion; Cation; Fouling; Rejection; Process design; Membrane; Zones; Electropure; SnowPure ABSTRACT: Electrodeionization (EDI) is a continuous separation process that uses a … Read more
Electrodeionización Para Generación de Energía y Farmacéutica
In México, EDI (Electrodeionización) is used to produce pure and ultrapure water for both Generación de Energía y Farmacéutica (USP PW y WFI). (Electrodeionización para Energia y Agua Farmaceutica) SnowPure works in México with OEMs to choose technologies and processes that will enable good performance and long life for RO (OI) and EDI Electrodeionization (Electrodeionización). … Read more
EDI for Power Plants — Importance of Silica
Silica is critical in high-purity boiler water for power plants to prevent efficiency losses and maintenance issues.
Operating Electrodeionization in a High-Silica Feedwater Environment
High silica feedwaters pose two challenges for ultrapure water membrane systems. On the front end, silica can scale the RO membranes, limiting use of some feedwaters and high water recovery. On the back end, silica can scale the IX resins in the electrodeionization (EDI). It is also a challenge to attain the very low ppb … Read more