EDI Electrodeionization Water Treatment Systems

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EDI Electrodeionization Water Treatment Systems is used to purify and deionize water by applying functional current to remove ionized substances from water. This system usually uses after a 1-stage or 2-stage reverse osmosis water purification system.

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Guangzhou Chunke Environmental Technology Co. Ltd

Guangzhou, China

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CHUNKE has over 20 years of experience as an international supplier in producing electro-deionization systems for high-level purity and support across many industries with cutting-edge solutions in water treatment. Reliability, high quality, functionality, flexible design, and no need for chemical regeneration make our EDI systems extremely desirable in the market. Electrodeionization EDI Water Treatment System removes ions and ionized matter with electrical potential and electrically active media. EDI Water System can be referred to as “electrolysis moderated ion exchange.” An EDI cell consists of MBIX resins sandwiched between an anion-exchange membrane (AEM) on one side and a cation-exchange membrane (CEM) on the other side, as shown in below :
An EDI water treatment plant module consists of multiple cell pairs (up to 240 cell pairs) stacked end-to-end. The resin spacers in thick cells are 8–10 mm and 3 mm in thin cells in edi water system. DC power is applied to a positive electrode (anode) located on one end of the module and to a negative electrode (cathode), located on the other end at edi water treatment plant. The ion exchange (IX) membrane is ion-selective, which means that the cation exchange membranes (CEM) allow only cations to pass through, and anion-exchange membranes (AEM) allow only anions to pass through.
corrosion inhibitor water treatment
Since the polymer is hydrophobic, it is not permeable to water. So it is very useful for corrosion inhibitor water treatment. Feed water enters the product compartments in parallel, and flows from top to bottom. The product stream flow rate may be increased or decreased within the range given in the specifications to meet the changing user requirements. Increasing the product water flow rate above the specified range decreases the product water quality. There are two modes of operation: constant voltage and constant current. Because of the direct current that is applied perpendicular to the flow by the electrodes, the anions are driven toward the anode through the selectively permeable AEM.
EDI units are designed to operate with little or no downtime. EDI produces consistent quality water without the problems and costs of regenerating IX resins and waste neutralization. High-purity water of up to 16.0 MΩ-cm resistivity can be produced with an EDI system using RO permeate of conductivity 1.0 μm/cm as feed water with product water recoveries in the 90–95% range.
Pharmaceutical reverse osmosis electro-deionization system capacity range between 0.1m3/hour to 50m3/hour. Design capacity and options can be customized.
Electrical Power of industrial water treatment system
For industrial water purification plant needs 220-380V/50Hz/60Hz. For bigger capacity, because of the high-pressure pump, it needs 380V 50/60Hz. As regards your reverse osmosis water filtration machine design, we will check your electrical supply and decide to fix the power for you.
Before Buying a reverse osmosis electro-deionization system, you should know:
1. Pure Water Production Capacity (L/day, L/Hour, GPD).
2. Feed Water TDS and Raw Water Analysis Report (prevent fouling and scaling problems)
3. Iron and Manganese must be removed before raw water enters the reverse osmosis water filtration membrane
4. TSS (Total Suspended Solid) must remove before the industrial water purification system’s membrane.
5. SDI (Silt Density Index) must be less than 3
6. Must be sure your water source does not have oil and grease
7. Chlorine must be removed before the industrial water treatment system
8. Available electrical power voltage and phase
9. Layout of place for industrial ro reverse osmosis system
corrosion inhibitor water treatment

Because of the high purity of permeate, Electrodeionization EDI water systems are very suitable for pharmaceutical applications, the medical industry, power, and energy industries, boiler applications…etc. Especially greater purity edi water treatment plant is also known as a corrosion inhibitor water treatment system.

Advantages of the EDI water system as opposed to the conventional systems of ion exchange resin are:

Produce high-quality ultra-pure water to 16.0-18.0 MΩ.cm in constant flow.
Chemical-free (used electricity instead of chemical for regeneration) and environmentally safe.
Simple and continuous production instead of batch cycle.
Cost-effective operation and maintenance.
Nonpollution. Safety and reliability.
Required small footprint operation.
No neutralization system is needed.
Corrosion inhibitor water treatment

Advantage of 2-pass RO + EDI Module for reverse osmosis electro-deionization plant
1. Lower conductivity = higher EDI quality
2. Lower CO2 = higher silica removal
3. Ppm-level contaminants mean infrequent EDI cleaning
4. Higher-rated flows for EDI
5. Reduce chemical cost for corrosion inhibitor water treatment

Features of RO + EDI Water System (corrosion inhibitor water treatment)

Standard Futers	Available Options
Programmable PLC Control	Automatic Flush
Motor Starter	Ozone Generator
Raw Water Feeding/Booster Pump	UV Sterilizer
Stainless Steel Cartridge Filter Housing	Chemical Dosing
FRP Membrane Housing	pH Control Monitor
Mitsibushi Processor Control	ORP Control Monitor
Low-Pressure Switch	Remote Control
High-Pressure Switch	Pretreatment System
Liquid Filled Pressure Gauge	Post Deionization Unit
Stainless Steel 304 Frame	CIP Membrane Cleaning System
Permeate Conductivity Monitor	Touch Screen Control
Raw Water Conductivity Monitor	Tank Level Switch
Membranes	Customer Logo
Control Valves	Double Pass RO
Stainless Steel/UPVC Piping
EDI Module

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