Electro Deionization: EDI Systems. Electro Pure EDI, Inc.: High technology water tm www.cswaters.co.kr
: EDI Electro Deionization 1. EDI Pure Water System? 2. EDI? 3. EDI? 4. EDI? 5. EDI? Slide 2
EDI 1. EDI EDI 2. EDI EDI Slide 3
EDI 2 : / ED 1950-1960 : 1960 : Ionics & GE Filled cell ED 1977: SRI Electropure EDI prototype 1984: ElectropureEDI 1985: Millipore EDI 1983-87: EDI 1988: EDI (Electropure) 1993: Ionpure USF 1996: Glegg E-cell tm 1998: EDI 2000-2001: DI EDI DI Slide 4
Introduction: EDI Electro Deionization 1. EDI Pure Water System? Slide 5
EDI City Water Source MMF Pretreatment & Primary RO RO Storage EDI Primary DI System DI Storage Polishing Loop System EDI To Process Slide 6
1 : RO & (Pretreatment) City Water Source MMF Pretreatment & Dechlorination Softening ph Adjust RO RO Storage Slide 7
2 : Primary DI System Options ( DI ) RO #2 Anion Resin MB Resin RO Storage - CO2 EDI DI Storage RO #2 - CO2 EDI Anion Resin Slide 8
3 : Polishing DI System Options() UV Filtration EDI Primary DI Storage - O2 Filtration Point of Use Non- Regen MB Resin Slide 9
Introduction: EDI Electro Deionization 1. EDI Pure Water System? 2. EDI? Slide 10
Electro Deionization? Electro-Dialysis (ED) EDI Electro-Deionization : Ion exchange resin( ) Ion selective membranes( ) DC electricity as a driving force( DE ) DI Slide 11
Slide 12 ED Electro-Dialysis anode cathode water
Slide 13 ED Electro-Dialysis anode cathode water A C
ED (ED limitations for Deionizing Water) ( ). ED module Slide 14
ED transforms into EDI(ED EDI ) :. : IX Resins( ) 100 IX Resins( ) IX Resins( ) HOH-. Slide 15
Electropure EDI Technology C Ultrapure Product A C A OH- H H OH- () Anode Cl- Na Na Cl- (-) Cathode Cl- Na Na Cl- Feed Conc Cl-, Na Conc Slide 16
Electropure EDI Technology Resins in Steady State (no regen) Upflow design Thin cells for better ion removal Mixed bed resins for best silica removal Ultrapure Product C A C A OH Cl () (-) Cl H Na Conc Feed OH H Cl Na Na Conc Slide 17
EDI Module: multiple cells in parallel product feed Slide 18
EDI Module: multiple cells in parallel product concentrate concentrate feed Slide 19
XL by Electropure TM Product Feed Slide 20
EDI Technology Product POLISHING BED CO2,, REMOVAL OF CO2, SILICA, BORON Feed WORKING BED REMOVAL OF CONDUCTIVITY Slide 21
XL by Electropure TM : 18,1Megohm.Cm Slide 22
EDI Module Slide 23
XL by Electropure TM Slide 24
XL by Electropure TM Product Flow XL-500 1,3-2,3 m 3 /h XL-400 0,7-1,5 m 3 /h XL-300 300-900 l/h XL-200 100-300 l/h XL-100 50-150 l/h Slide 25
EDI Systems 100 m 3 / RO Slide 26
150 gpm Semiconductor System Customer Photo: Do Not Distribute Slide 27
Introduction: EDI Electro Deionization 1. EDI Pure Water System? 2. EDI? 3. EDI? Slide 28
EDI Easy ions in feedwater Na, Cl -,. Fewer ions in feedwater Proper voltage driving force depends on %recovery and temperature,,, No oxidizers, no metals, no debris, no organics (TOC) Good internal pressure balance Proper and Simple system design Slide 29
EDI Performance: Conductivity XL Performance: 17.0-17.5 Megohm.cm XL Field Performance: 17.9-18.1 Megohm.cm Reduces Ion Load on Mixed Bed Polisher Keys to Performance. Slide 30
Keys to EDI Performance Proper Pretreatment Proper Feedwater Constituents 5 ppm CO2 Minimum Oxidizing Agents Periodic Torqueing Slide 31
Simple System Design Slide 32
Silica Numbers RO Feed: 5-70 ppm RO Silica (Rejection): 99.7% per Hydranautics (CPA4: 2x Chloride) Silica EDI (Inlet Maximum): 0.5 ppm 20 ppm - 99% System - 0.2 ppm to EDI XL: 88-92% by Hach 5000 with 200 ppb feed. 20 ppb feed to MB polisher. 1-3 ppb from MB polisher Slide 33
EDI? (O 3, Cl 2 ) (Fe 3, Mn) ( ) ( ) SiO 2, CO2 () ( ) Slide 34
EDI : 3 : RO : 7-8 Slide 35
EDI? EDI RO EDI 1 CO2 SiO 2 / /. Slide 36
: EDI Electro Deionization 1. EDI Pure Water System? 2. EDI? 3. EDI? 4. EDI? 5. EDI? www.cswaters.co.kr Slide 37