EDI MODULES Hengshui Snowate Environmental
Technology Co., Ltd.
www.snowate.com
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HENGSHUI SNOWATE
ENVIRONMENTAL
TECHNOLOGY CO., LTD.
A TRUSTWORTHY SOURCING EXPERT
ON WATER TREATMENT FACILITIES
As a senior sourcing expert on water treatment facilities and accessories, Hengshui Snowate
Environmental Technology Co., Ltd. has extensive water treatment expertise, profound water
treatment industry experience and a deep understanding of the water treatment industry
purchasing demands. As a consequence, we are capable of providing one-stop purchase
and technical support on water treatment facilities and accessories according to our
customers' applications, thereby helping our customers to shorten the procurement cycle,
reduce procurement costs and maximize economic benefits.
We integrate upstream supply chain products of the water treatment industry. In addition, we
work with renowned suppliers and manufacturers. As a result, we can continuously supply
high-quality water treatment components and systems for customers across the world to
meet the needs of a Wide Range of Applications, Thereby Optimizing Water Resources and
Promoting The Sustainable Development of The Global Environment.
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EDI ADVANTAGES
High and stable water quality No regeneration pollution
No acid or alkali regeneration needed Low building area requirement
Continuous operation, easy to operate Low operation and maintenance costs
Simple installation, low cost Easy integration with existing treatment systems
Modular design, easy to expand No salt addition or brine circulation system, more reliable
EDI
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EDI PRINCIPLE
Electrodeionization (EDI) is a pure water production technology that combines ion exchange, ion exchange membranes,
and ion electromigration. It cleverly integrates electrodialysis and ion exchange, using high voltage across electrodes to
move charged ions in water. This process is accelerated by ion exchange resins and selective resin membranes, achieving
water purification. EDI is technologically advanced, easy to operate, and environmentally friendly, representing a green
revolution in pure water preparation.
EDI Feedwater Quality Requirements EDI Product Water Quality
● Feedwater: RO Product Water, Conductivity < 40 μs/cm (*FCE) ● Resistivity: Greater than 15 MΩ
● PH: 6.5-9.0 ● Silica Removal Rate: Up to 99% or below 10 ppb
● Water Temperature: 5-35 °C
● Hardness (as CaCO3): < 1.0 ppm
● Organics: < 0.5 ppm, TOC recommended to be zero
● Oxidizing Agent: Cl2 < 0.05 ppm, O3 < 0.02 ppm
● Iron, Manganese: < 0.01 ppm
● Silica: < 0.5 ppm
● Carbon Dioxide: < 5 ppm
● Oil and Grease: Not Detectable
Note: FCE (μS/cm) = Conductivity (μS/cm) + 2.79 * (Total CO2 ppm) + 1.94 * (Silica, ppm)
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EDI TECHNOLOGY
Ultrapure Water for Electronics, Semiconductor, and Precision
Machinery Industries
Preparation of Food, Beverage, and Drinking Water
Water for Fine Chemicals and Advanced
Scientific Fields
Pharmaceutical Industry Process Water
APPLICATION
Power Plant Chemical FIELDS
Water Treatment
Small Pure Water Station
Desalination of Seawater and
Brackish Water
High-Purity Water Preparation for Other Industries
Providing EDI Stacks in Various Specifications from 50 L/H to 8000 L/H
● Perfect Technical Solutions ● Stable Performance Products ● Comprehensive After-Sales Service
H series L series G series P series
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L series Technical Parameters
Directly interchangeable with Siemens IONPURE modules, with compatible dimensions;
Model SEDI-05L SEDI-10L SEDI-20L SEDI-25L SEDI-30L SEDI-50L SEDI-70L SEDI-80L
Design Product Flow Rate m³/h 0.5 1.0 2.0 2.5 3.0 5.0 7.0 8.0
Minimum Product Flow Rate m³/h 0.22 0.55 1.1 1.4 1.7 2.55 3.8 6.5
Maximum Product Flow Rate m³/h 0.67 1.35 2.8 3.5 4.2 6.8 7.8 9.5
Recovery Rate (%) 90-95 90-95 90-95 90-95 90-95 90-95 90-95 90-95
Product Water Resistivity MΩ.cm ≥15 ≥15 ≥15 ≥15 ≥15 ≥15 ≥15 ≥15
Operating Voltage DC V ≤200 ≤200 ≤340 ≤340 ≤340 ≤500 ≤500 ≤500
Design Voltage DC V 0-200 0-200 0-350 0-350 0-350 0-500 0-500 0-500
Operating Current DC A ≤6 ≤6 ≤6 ≤6 ≤6 ≤6 ≤6 ≤6
Design Current DC A 0-6 0-6 0-6 0-6 0-6 0-6 0-6 0-6
Freshwater Pressure Drop Mpa 0.10-0.30 0.10-0.30 0.15-0.40 0.15-0.40 0.15-0.40 0.22-0.40 0.22-0.40 0.22-0.40
Maximum Inlet Pressure Mpa 0.70 0.70 0.70 0.70 0.70 0.70 0.70 0.70
320mm (12.6")
Concentrate Inlet 3/4"
BSP Male Thread
Freshwater Inlet 1-1/4"
BSP Male Thread
605mm (23.82")
452mm (17.80")
Cathode wire
connect box Anode wire connect box
Concentrate Outlet 3/4"
BSP Male Thread
Product Outlet 1-1/4"
BSP Male Thread
Mounting Bracket Mounting Bracket
101mm (3.98") Side View
Rear View
76mm (3") L 76mm (3")
Total EDI Module Thickness
218mm (8.58")
Mounting Hole
Center Distance of Mounting Hole
Top View
Model SEDI-05L SEDI-10L SEDI-20L SEDI-25L SEDI-30L SEDI-50L SEDI-70L SEDI-80L
L (mm) 115 208 327 410 500 723 795 870
L1 (mm) 155 248 365 465 540 763 835 912
Note: Tolerance ± 3mm.
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H series Technical Parameters
Model SEDI-05H SEDI-10H SEDI-20H SEDI-30H SEDI-40H
Design Product Flow Rate m³/h 0.5 1.0 2.0 3.0 4.0
Minimum Product Flow Rate m³/h 0.3 0.7 1.4 2.4 3.2
Maximum Product Flow Rate m³/h 0.7 1.5 2.5 3.8 4.8
Recovery Rate (%) 90-95 90-95 90-95 90-95 90-95
Product Water Resistivity MΩ.cm ≥15 ≥15 ≥15 ≥15 ≥15
Operating Voltage DC V ≤200 ≤200 ≤340 ≤340 ≤340
Design Voltage DC V 0-200 0-200 0-350 0-350 0-350
Operating Current DC A ≤6 ≤6 ≤6 ≤6 ≤6
Design Current DC A 0-6 0-6 0-6 0-6 0-6
Freshwater Pressure Drop Mpa 0.10-0.30 0.10-0.30 0.15-0.40 0.15-0.40 0.15-0.40
Maximum Inlet Pressure Mpa 0.70 0.70 0.70 0.70 0.70
310mm (12.2")
Concentrate Outlet
DN15 Female Thread
Freshwater Inlet
DN25 Female Thread
680mm (26.77")
533mm (20.98")
Cathode wire Anode wire
connect box connect box
Concentrate Inlet
DN15 Female Thread
Product Water Outlet
DN25 Female Thread
Moun�ng Bracket Moun�ng Hole
78mm (3.07")
Side View
Rear View
65mm (2.56") L 65mm (2.56")
Total EDI Module Thickness
197mm (7.76")
L1
Moun�ng Hole
Center Distance of Moun�ng Hole
Top View
Model SEDI-05H SEDI-10H SEDI-20H SEDI-30H SEDI-40H
L (mm) 155 220 375 530 685
L1 (mm) 200 260 415 570 725
Note: Tolerance ± 3mm.
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G series Technical Parameters
Directly interchangeable with GE E-CELL modules, with compatible dimensions;
Model SEDI-30G SEDI-50G
Design Product Flow Rate m³/h 3.0 5.0
Minimum Product Flow Rate m³/h 1.5 2.5
Maximum Product Flow Rate m³/h 4.0 6.0
Recovery Rate (%) 90-95 90-95
Product Water Resistivity MΩ.cm ≥15 ≥15
Operating Voltage DC V ≤340 ≤500
Design Voltage DC V 0-350 0-500
Operating Current DC A ≤6 ≤6
Design Current DC A 0-6 0-6
Freshwater Pressure Drop Mpa 0.20-0.40 0.2-0.40
Maximum Inlet Pressure Mpa 0.60 0.60
300mm(11.81")
Concentrate Outlet 3/4" Side View
BSP Female Thread
Electrode Outlet 3/8"
BSP Female Thread
610mm(24.02")
480mm(18.90")
Product Outlet 1"
BSP Female Thread
Concentrate Inlet 3/4"
BSP Female Thread
Freshwater Inlet 1"
BSP Female Thread
L1
Moun�ng Hole Moun�ng Hole
49mm (1.93") Center Distance of Moun�ng Hole
Rear View
65mm(2.56") L 65mm(2.56")
Total EDI Module Thickness
238mm(9.37")
Top View
Model SEDI-30G SEDI-50G
L (mm) 440 630
L1 (mm) 425 615
Note: Tolerance ± 3mm.
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P series Technical Parameters
Micro EDI Stack for Laboratory Use
Model SEDI-50P SEDI-100P SEDI-200P SEDI-250P
Design Product Flow Rate l/h 50 100 200 250
Minimum Product Flow Rate l/h 30 80 160 200
Maximum Product Flow Rate l/h 60 120 240 300
Recovery Rate (%) 90-95 90-95 90-95 90-95
Product Water Resistivity MΩ.cm ≥15 ≥15 ≥15 ≥15
Operating Voltage DC V 24-40 24-40 40-70 40-70
Design Voltage DC V 0-200 0-200 0-200 0-200
Operating Current DC A 0.5-1.0 0.5-1.0 0.5-1.0 0.5-1.0
Design Current DC A 0-6 0-6 0-6 0-6
Freshwater Pressure Drop Mpa 0.05-0.30 0.08-0.30 0.10-0.40 0.10-0.40
Maximum Inlet Pressure Mpa 0.40 0.40 0.40 0.40
155mm (6.1")
Product Water Outlet Freshwater Inlet
DN10 Quick Connect DN10 Quick Connect
325mm (12.8")
Cathode wire Anode wire
connect box connect box
Connect to Posi�ve Connect to
Electrode Nega�ve Electrode
Concentrate Outlet Concentrate Inlet
DN10 Quick Connect DN10 Quick Connect
Moun�ng Moun�ng
Bracket Bracket
Side View
Front View Rear View
25mm (1") L 25mm (1")
Total EDI Module Thickness
70mm (2.76")
L1
Moun�ng Hole
Center Distance of Moun�ng Hole
Top View
Model SEDI-50P SEDI-100P SEDI-200P SEDI-250P
L (mm) 105 140 205 270
L1 (mm) 128 160 225 290
Note: Tolerance ± 3mm.
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EDI ENGINEERING CASES
A Coking Project A Biomass Power Company
3X200T/H EDI Ultrapure Water System 80 T/H Demineralized Water System
System Process: Double-Pass Reverse Osmosis + EDI; System Process: Double-Pass Reverse Osmosis + EDI;
Product Water Quality: Resistivity >17 MΩ Product Water Quality: Resistivity >17 MΩ
A Thermal Power Project A Combined Heat and Power Project
200 T/H Demineralized Water System 4×100 T/H Demineralized Water System
System Process: System Process:
Multimedia Filtration + UF + Double-Pass RO + EDI Multimedia Filtration + UF + Double-Pass RO + EDI
Product Water Quality: Resistivity >17 MΩ Product Water Quality: Resistivity >17 MΩ
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EDI ENGINEERING CASES
A Waste Incineration Power Generation Project A Photovoltaic Project
30 T/H Demineralized Water System 70 T/H Ultrapure Water System
System Process: Double-Pass Reverse Osmosis + EDI; System Process: Double-Pass Reverse Osmosis + EDI;
Product Water Quality: Resistivity >17 MΩ Product Water Quality: Resistivity >17 MΩ
A Metallurgical Project A Chemical Project
50 T/H Demineralized Water System 1200 T/H Demineralized Water System
System Process: System Process:
Multimedia Filtration + UF + Double-Pass RO + EDI Multimedia Filtration + UF + Double-Pass RO + EDI
Product Water Quality: Resistivity >17 MΩ Product Water Quality: Resistivity >17 MΩ
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Ms Snow Zhao
snow@snowate.com
Mobile: +86-15030811699
WeChat WhatsApp (WhatsApp, WeChat, Skype, Viber)
Hengshui Snowate Environmental Technology Co., Ltd.
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