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CEDI Filtration Water System

The operation mechanism of the EDI filtration water system:

EDI is an advanced technology used to remove ions and impurities from water using the principle of electrolysis and ionization. EDI is often used after RO or other water treatment methods to create more purified water.
  1. Step 1: Divide water into two streams: Water after treatment by RO usually contains a small amount of dissolved ions remaining and impurities. The EDI system divides this water into two streams: a fresh water stream (with low ion concentration) and a wastewater stream (with high ion concentration).
  2. Step 2: Ionizing Intermediate Fluid: The wastewater stream is passed through ionizing intermediate fluid zones. In this zone, the wastewater stream passes between the liquid membrane duo and the ionized membrane. Electrical pressure is applied, causing the dissolved ions to ionize into positive and negative ions. The positive ions transfer through the ionized membrane to enter the freshwater stream, while the negative ions transfer through the membrane and into the wastewater stream.
  3. Step 3: Ion removal: The ionizing membranes in the EDI system are capable of removing positive and negative ions from the wastewater stream, retaining them in the wastewater stream.
  4. Step 4: Create purified water: Fresh water flow after passing through the ionized membrane will continue through the EDI membranes. These membranes are capable of removing remaining impurities, remaining positive and negative ions, creating purified water.
CEDI Filtration Water System

EDI system review:

  1. Effective ion removal: The EDI system removes positive and negative ions from water efficiently and continuously, helping to produce pure water with extremely low ion concentration.
  2. No chemicals required: EDI works on the electrolyte principle and does not require the use of chemicals to regenerize as traditional ion exchange methods.
  3. No byproducts: No byproducts such as acids or alkalis are needed to regenerize, helping to reduce the impact on the environment.
  4. Easy to operate: EDI system works continuously and automatically, does not require much operator intervention.
  1. Initial investment cost: The EDI system has a higher initial investment cost than some other water treatment technologies.
  2. Maintenance: Ionizing membranes in EDI systems may become clogged over time and require periodic maintenance.
EDI is an advanced technology in ion separation and removal of unwanted ionic substances from water using electrical force. EDI is commonly used in applications that require extremely high water quality, such as pure water production, water used in pharmaceutical, electronics and other industries.

Here are some examples of applications of EDI systems :

  1. Pure water production: One of the main applications of the EDI system is the production of pure or ultra-pure water, which is used in areas such as experimental analysis, laboratory, electronic and pharmaceutical manufacturing. EDI helps to remove valence and non-valence ions in the water, producing water of superior quality.
  2. Electronics industry: In the electronics manufacturing industry such as microchips and electronic components, clean and ion-free water can be extremely important to ensure product quality and avoid impacts from conductive ions. The EDI system helps to produce clean water with extremely low ion concentrations.
  3. Pharmaceutical industry: In the pharmaceutical industry, the quality of water used in the manufacturing and making of medicines is extremely important. The EDI system helps remove ions and impurities from water, creating clean water that meets medical standards.
  4. Food and Beverage Production: In food and beverage production processes, clean and ion-free water may be necessary to ensure the quality and safety of the final product. EDI can be used to produce clean water for these processes.
  5. Industrial wastewater treatment: EDI can also be used for industrial wastewater treatment, which helps remove contaminants from wastewater before discharging it into the environment.
  6. Chemical research and analysis: In laboratories and chemical research, purified water is an important factor to ensure the quality of test and analysis results.
The EDI system has many important applications in the production of pure and clean water, meeting strict quality standards in a variety of industries. The removal of ions and impurities from water helps ensure that water used for various purposes is safe and meets the required standards.

In conclusion of the EDI system:

is an advanced and efficient technology in the generation of purified water.
Despite the drawback of the initial investment cost, it offers the benefit of its ability to remove ions and impurities efficiently and does not require the use of chemicals.

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