EDR 2020 system

Summary

Product identification

The Veolia 2020 Electrodialysis Reversal (EDR) product is a desalination technology used in 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 Veolia 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

Operating limits

• 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

Feed water

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)
• TOC: < 15 ppm (mg/l)
• COD: < 50 ppm (mg/l) as O2
• Iron: < 0.3 ppm (mg/l)
• Manganese, Aluminum: < 0.1 ppm (mg/l)
• H₂S: < 0.1 ppm (mg/l)

Allowable Intermittent Levels:

• SDI (5 min. test): 15
• Turbidity: 2.0 NTU
• Free Chlorine: 30 mg/l

Electrical

• Input Voltage: 480VAC/3/60Hz
• Typical Power consumption: 2 – 4 kWh/1,000 gallons of product water

Model-specific electrical connection requirements (KVA) and maximum rectifier output per stack (VDC, A) are tabulated in the official PDF.

Mechanical / hydraulic

Instrumentation – Transmitters:

• Flow: Product Outlet, Concentrate Outlet
• Pressure: Cartridge Filter Inlet & Outlet, Concentrate, Recirculation Pump Outlet, Product Outlet
• Conductivity: Inlet & Product Outlet

Material of Construction:

• Welded Frame: Painted Carbon Steel
• Dilute and Concentrate Piping: Sch. 80 PVC
• Flanges: ANSI
• Concentrate Pump: Single-stage Centrifugal
• Rectifier: NEMA 3R
• Control Panel: NEMA 4

System dimensions, product flow rates, and piping sizes are provided per model in tables in the official PDF. Note: all piping sizes are provided for nominal flow rates at 85% recovery.

Quality Assurance

• Certification: UL
• Facility: ISO 9001:2000

Disclaimer: This summary is based on the provided text extract. It may not include all figures, footnotes, or the latest revisions present in the complete OEM PDF datasheet. For contractual data and complete specifications, please refer to the specific OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror