Electrodeionization (EDI) System

Your Professional Electrodeionization (EDI) System Supplier

 

 

Our goal is to become your true partner in the field of ceramic membrane in China. Taihe Environmental Technology is a water treatment system design and manufacturing company established in 1998. We have a skilled engineering team dedicated to refining every stage, from product development and process improvement to production oversight, ensuring every product delivered meets rigorous quality and performance standards. The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.

 

 
 
Why Choose Us
 

Production market: Our products are very popular in the market and are sold all over the world, mainly exported to Southeast Asia, South America and the Middle East.

 

Our certification: We have passed ISO45001 (OHSAS18001) occupational health and safety management system certification, ISO9001 quality system certification, ISO14001 environmental system certification.

 

Production equipment: We have advanced production equipment, including automated high constant temperature kilns, ceramic membrane prefabrication equipment, various testing equipment, experimental equipment, machining equipment, automatic argon arc welding machines, cranes, dust removal equipment, smoke removal equipment, fire fighting equipment, fire fighting facilities, forklifts, electric sweepers, etc.

 

Our services: In the pre-sales stage, our team of experts will recommend the most suitable products according to the needs of customers and provide detailed technical consultation. During the sales period, we ensure timely delivery and provide installation guidance. For after-sales, we provide long-term technical support, warranty services and spare parts to help customers maximize the use of products and get reliable maintenance during use.

 

Advantages of Electrodeionization (EDI) System

 
 
01
 

Continuous operation

Unlike traditional deionization, edi runs continuously without downtime for chemical regeneration.

 
02
 

High-purity water production

Achieves resistivity levels of 10-18 mω.Cm, ideal for high-pressure boilers.

 
03
 

Chemical-free process

Eliminates the need for acid and caustic regeneration, reducing operational hazards and environmental impact.

 
04
 

Low operating costs

Minimizes maintenance expenses and chemical handling, providing a cost-effective alternative.

 
05
 

Compact design

Requires less space compared to conventional ion exchange systems.

Electrodeionization for Boiler Feed Water

 

Specification of Electrodeionization (EDI) System

 

 

 

Product name

Electrodeionization (edi) system

Flow Rate

EDI water treatment system can be designed to handle a wide range of flow rates, from small-scale laboratory systems (less than 1 m³/hr) to industrial applications (up to 100 m³/hr or more).

Water Purity

EDI water purification system typically produce water with a conductivity of 0.05-1 µS/cm, ideal for the most demanding processes.

Operating Pressure

EDI unit for water treatment generally operate at low pressures (around 4-8 bar), unlike reverse osmosis systems, which often require higher pressure to function efficiently.

Recovery Rate

EDI systems can achieve a high recovery rate (up to 95%) by efficiently removing contaminants and reusing the feedwater.

Energy Efficiency

With an energy consumption as low as 0.1-0.5 kWh/m³, EDI is an energy-efficient solution.

Capacity

The capacity of an Electrodeionization (EDI) modules varies depending on the specific application and model, ranging from small-scale solutions of 1 m³/hr to large industrial systems capable of processing over 100 m³/hr.

Materials

The electrodes and cell stack are constructed from high-quality, corrosion-resistant materials to ensure long-term performance in harsh environments.

 

Electrodeionization for Boiler Feed Water

 

Application of Electrodeionization (EDI) System

Pharmaceuticals: Production of pure water for drug manufacturing and medical device sterilization.


Semiconductor industry: Water used in the manufacturing of semiconductors must be free from impurities to ensure the quality and functionality of the final products.


Power generation: Boilers and cooling systems in power plants require ultra-pure water to avoid scaling and corrosion.


Food and beverage: Ensuring water quality for processing, ingredient formulation, and sanitation in food production.


Laboratories: High-purity water for testing, research, and scientific experiments.

 

Features of Electrodeionization (EDI) System

 
 

Compact design: Edi modules are typically compact, making them suitable for various applications and reducing space requirements.

 
 

Continuous and chemical-free operation: Edi systems operate continuously without needing chemical regeneration, unlike traditional mixed bed ion exchange systems.

 
 

High purity water production: Edi systems can produce water with extremely low conductivity and dissolved solids, reaching high resistivity levels (e.G., >18 mω/cm).

 

 

Components of Electrodeionization (EDI) System

Ion exchange membranes

These are semi-permeable membranes that selectively allow the passage of either positive or negative ions, separating the water into concentrate and dilute compartments.

Electrodes

These are the terminals that provide the dc current, driving the movement of ions across the membranes.

Chambers/compartments

The edi system uses a series of compartments separated by the membranes, allowing for the flow of water and the separation of ions.

 

Packing and Shipping of Electrodeionization (EDI) System

 

 

Packing

Wooden box

Shipping

Shipped by road, sea, rail

 

FAQ

 

Q: What is the process of electrodeionization?

A: Electrodeionization (EDI) is a continuous, chemical-free process of removing ionized and ionizable species from feedwater using DC power. EDI is typically used to polish reverse osmosis (RO) permeate, and is a smart alternative to — and effective replacement of — conventional mixed bed ion exchange (IX).

Q: How does EDI water treatment work?

A: Electrodeionization (EDI) is an electrically-driven water treatment technology that uses electricity, ion exchange membranes and resin to remove ionized species from water.

Q: How does the EDI system work?

A: EDI works primarily by using two forms of transmission: A point-to-point or direct EDI connection connects two business systems with secure protocols. The value-added network (VAN) method uses a third-party network that oversees the data transmission process.

Q: What is the difference between EDI and RO water?

A: EDI is used as a polishing technology to make ultrapure water that RO alone can not meet. Typically EDI produces less than 0.065 microsiemen/cm conductivity (less than 2 parts per billion of dissolved solids). EDI product water can sometimes approach theoretical purity of water 18.28 MegOhm-cm.

Q: What is the conductivity of the permeate water produced in an EDI system approximately?

A: Plants with EDI produce ultrapure water (output conductivity <0.1 µS/cm). They are available both in a complete version with a reverse osmosis system, or as a solitary EDI system (see photo). The inlet water must be osmotic with a conductivity between 4 and 20 µS/cm.

As one of the most professional electrodeionization (edi) system manufacturers and suppliers in China, we're featured by quality products and good price. Please rest assured to buy customized electrodeionization (edi) system from our factory.

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