Fact Sheet

GE 2020 EDR Systems
Electrodialysis Reversal Technology
The GE 2020 Electrodialysis Reversal (EDR) product
is a proven and reliable desalination technology
that has been in service in a variety of industrial
and public infrastructure applications.

EDR Features

Use of Carbon Electrodes results in no gas produced and no separate electrode stream
required.
High Water Recovery, up to 94%
Salt Removal of 50 to 95%
Polarity Reversal self-cleaning with electricity
Free chlorine tolerance
Tolerance to moderate suspended solids
Adjustable product water performance without
blending
Ability to disassemble stacks for inspection
Silica tolerance

EDR Benefits

Efficient use of scarce water resources
Low pretreatment requirements and costs
Low chemical consumption costs
Long membrane life, typically 10+ years
Strong ability to recover from less than ideal
feed water quality

Standard Design and Scope of Supply

MK-IV-2 EDR stacks with GE Carbon Electrodes
Cartridge filter
Concentrate Recirculation pump with VFD
GE Fanuc Micro PLC & 12” (30 cm) color Quick
Panel HMI
Full Owners Operation & Maintenance Manual,
Factory Acceptance Test results and Stack Performance Test results

Instrumentation - Transmitters
Flow ............................Product Outlet, Concentrate Outlet
Pressure ................................ Cartridge Filter Inlet & Outlet
Concentrate, Recirculation
Pump Outlet, Product Outlet
Conductivity ....................................... Inlet & Product Outlet

Operating Parameters
Water Recovery....................................................... Up to 94%
Salt Removal .......................................................... 50% to 95%
Silica Removal ...................................................................... none
Temperature ................................... 40 to 100ºF (4 To 38ºC)
Maximum Feed Pressure .............................................. 50 psi
Input Voltage ................................................. 480VAC/3/60Hz

Feed Water Requirements
Typical Feed TDS ........................ 100 to 3,000 ppm (mg/l)
Maximum Feed TDS ............................. 12,000 ppm (mg/l)
Silica (Reactive) .......................................................... unlimited
pH .......................................................................................... 2 to 10
SDI (5 min. test) ........................................................................ 10
Turbidity ....................................................................... < 0.5 NTU
Free Chlorine (continuous) ........................ 0.5 ppm (mg/l)
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FS1242EN.doc Jul-13