DUPONT Electrodeionization Module Model EDI-310

Module Feed Water

Requirements

Based on RO Permeate

Feedwater

Parameter SI units US units

Hardness 0.01 meq/L ≤ 0.5 ppm (CaCO3)

Dissolved Silica ≤ 0.5 ppm

TOC ≤ 0.5 ppm

pH, Operating Range 5.0 – 9.0

Free Cl2 ≤ 0.05 ppm

Fe, Mn ≤ 0.01 ppm

Turbidity, NTU ≤ 0.1 ppm

Oxidizer, mg/L Not detectable

Module Operating

Conditions

Dilute Water Flowrate 1.5 – 2.2 m3/h 6.6 – 10 gpm

Recovery Rate up to 95%

Inlet Temperature 10 – 38°C 50 – 100°F

Inlet Pressure, max. 6.9 bar 100 psig

Continuous Operating Pressure, max. 5.5 bar 80 psig

Dilute Pressure Drop 1.5 – 2.5 bar 22 – 36 psig

Concentrate Outlet Pressure 0.5 – 0.7 bar less

than dilute pressure

7– 10 psig bar less

than dilute pressure

Electrolyte Flush 40 – 60 L/h 0.18 – 0.26 gpm

Electrical Current, max. 9A

Working Voltage, max. 160V DC