Working principle of EDI device
Source: | Author:demihind | Publish time: 2020-11-25 | 98 Views | Share:
Ro effluent (EDI influent) is generally 4-30 μ / cm (conductivity), that is, the resistivity is 50-250k Ω· cm. According to different needs, the resistance of ultrapure water or deionized water is 2-18.2m Ω· cm.

Working principle of EDI device

Tap water often contains sodium, calcium, magnesium, chlorine, nitrate, silicon and other dissolved salts. These salts are composed of negative ions (negative ions) and positive ions (positive ions). More than 99% of the ions can be removed by reverse osmosis. Tap water also contains trace metals, dissolved gases (such as CO2) and other weakly ionized compounds (such as silicon and boron) that must be removed in industrial processes.

Ro effluent (EDI influent) is generally 4-30 μ / cm (conductivity), that is, the resistivity is 50-250k Ω· cm. According to different needs, the resistance of ultrapure water or deionized water is 2-18.2m Ω· cm.

Demih industry's EDI removes them by exchanging them with hydrogen or hydroxyl ions and sending them to concentrated water streams. The basic requirement for EDI to be in the best working state without failure is to properly preprocess the requirements of EDI water inflow. The impurities in the influent have a great influence on the deionization module. And may result in shortening the life of the module.

The influent conditions of EDI are as follows:

EDI component running results depend on a variety of operating conditions.

The following are the minimum conditions for EDI operation. In order to make the system run better,

These conditions should be properly improved in system design