Electrodeionization (EDI)
Water treatment technologies continuously evolve to enhance water quality and meet the needs of various industries. Electrodeionization (EDI) is a technology that combines ion-exchange resins and electric current to purify water effectively.
Basic Principle of Electrodeionization
Electrodeionization is a purification process that utilizes ion-exchange resins and electric current to remove anionic and cationic ions from water. In this method, ion-exchange membranes retain ions, and under an electric field, they are removed from the water. This results in reduced water conductivity and the production of high-purity water.
Advantages of Electrodeionization
EDI technology offers significant advantages in water treatment processes:
- No Regeneration Required: EDI systems do not require the regeneration of ion-exchange resins, reducing material and operational costs.
- No Chemical Storage Needed: Unlike other treatment methods, EDI does not require chemical storage, enhancing safety and environmental sustainability.
- Consistent Quality: It does not require 24/7 operator presence and consistently produces ultrapure water of the same quality.
Applications of Electrodeionization
Electrodeionization finds applications in a wide range of fields:
- Power Generation Facilities: Particularly preferred for power generation facilities for tasks like boiler feedwater preparation and cooling water treatment.
- Chemical Production: High-purity water demand in chemical production makes EDI systems crucial.
- Pharmaceutical Industry: The need for high-purity water in pharmaceutical production makes EDI a significant solution.
- Biotechnology and Cosmetic Industry: Both these industries require high-quality water, making EDI relevant in these sectors.
This technology purifies water by using ion-exchange resins and electric current to remove anionic and cationic ions. Water passed through pretreatment, ultrafiltration, and double-pass reverse osmosis units is fed into the EDI system to achieve low conductivity values down to 0.056 μS/cm (18 mW/cm).
With no need for resin regeneration, material expenses are minimized in these systems. Additionally, it requires no chemical storage and produces consistent ultrapure water quality without the need for a 24/7 operator.
Applications of Electrodeionization in Water Treatment
EDI systems are used in power generation facilities, chemical production, pharmaceutical industry, biotechnology, and cosmetic industry.
This technology purifies anionic and cationic ions in water by purifying them with ion exchange resin and electrical current support. The water passing through the pre-treatment, UF and double-pass RO units is given to the EDI system and has low conductivity values up to 0.056 μS/cm.
Electrodeionization Water Treatment Using Areas
Electrodeionization technology offers an efficient and effective method for purifying water through ion removal. Its advantages of not requiring regeneration, no chemical storage needs, and the continuous production of high-quality water contribute to its adoption. At RIVATEC, we leverage EDI technology to maximize water quality and meet various industry needs. To learn more and explore our customized solutions, feel free to contact us.
Electrodeionization technology provides an effective and efficient method for purifying water with ions. The advantages of not requiring regeneration, no need for chemical storage and continuous high quality water production are the reasons why this technology is preferred. As RİVATEC, we use EMI technology in the best way to maximize the quality of water and meet the needs of various sectors. You can contact us to get more information and review our customized solutions.