Reverse Osmosis EDI Unit

YLD-EDI-15
Electrodeionization is a green solution used to remove ions from water with an electrically active media, without the use of chemicals. This process creates ultra pure water through combining ion exchange water filters with electrical potential (DC power). Electric potential regenerates resin with less cost, since it only requires electricity, while conventional ion exchange water treatment systems need large vessels, acid/caustic injection systems, and etc. EDI water treatment is also useful in cleaning RO permeate.

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Features
Technical Indicators
Overall Dimension

Many EDI water systems in water treatment using Pure EDI technology perform very well with 1-pass RO. It is easy to achieve 17+ Megaohm with 1-pass RO. Most USP WFI and purified water systems easily meet requirements with 1-pass RO. As a basic knowledge in the water treatment industry, softening with 1-pass RO system is less expensive and less complex than a 2-pass RO system.
Two pass RO followed by EDI gives the following advantages, and is often used for power plants or pharmaceutical applications.
Process flow chart:
Raw water → raw water tank → booster pump → quartz sand filter → activated carbon filter → softener (optional) → scale inhibitor → precision filter → primary high pressure pump → primary reverse osmosis → primary RO water tank → PH adjustment → secondary high pressure pump → secondary reverse osmosis → secondary RO water tank → booster pump → ultraviolet sterilizer (optional with) → precision filter → EDI device → ultra-pure water tank (nitrogen protection is recommended) (water production resistivity ≥15MΩ.CM(25℃)
Application
Water for electroplating industry (gold plating, silver plating, etc.), analysis laboratory water, glass shell coating flushing water, coating water, high purity ink water, etc. Sterility water for pharmaceutical production, water for biological engineering, water for advanced cosmetics production, water for coating, water for cleaning optical materials, water for electronic ceramic industry, water for magnetic materials, water for cleaning silicon wafers, water for fine chemical production, etc.