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Culligan offers a wide range of technologies, products and services to meet the water quality and quantity needs of our customers with high purity water applications.

Deionized Water

Culligan's portable exchange DI tanks service provides all the benefits of deionized water without the high cost. No capital investment, no labor cost, no maintenance costs, no chemical cost, no water treatment issues. Deionization systems provide purified water through ion exchange and are often used in commercial and industrial applications requiring very high quality water.

Deionizers are commonly used for but aren't limited to: 

Photo processing Plating printing Metal workings Fluid chemical blending Humidification Glass industries Laboratory water

Choose the deionization system that gives you the level of purity you need. Culligan offers strong-base, weak-base, or mixed bed systems. We'll help you determine which will deliver the quality of water your business needs.

Electrodeionization (EDI)

EDI is a water treatment process that removes ionizable species from liquids using electrically active media and an electrical potential to effect ion transport. It differs from other water purification technologies, such as conventional ion exchange, in that it is does not require the use of chemicals such as acid and caustic. EDI is commonly used as a polishing process to further deionize Reverse Osmosis (RO) permeate to multi-megohm-cm quality water.

The continuous electrodeionization (EDI) process, is distinguished from other electrochemical collection/discharge processes such as electrochemical ion exchange (EIX) or capacitive deionization (CapDI), in that EDI performance is determined by the ionic transport properties of the active media, not the ionic capacity of the media. EDI devices typically contain semi-permeable ion-exchange membranes and permanently charged media such as ion-exchange resin. The EDI process is essentially a hybrid of two well-known separation processes - ion exchange deionization and electrodialysis, and is sometimes referred to as filled-cell electrodialysis.