Perchlorate is an emerging drinking water contaminant that is said to affect the thyroid function in humans leading to hypothyroidism. Perchlorate can be removed from water by either physical or chemical processes. It can be physically separated by reverse osmosis. It can also be chemically treated using an ion exchange resin. During this method, contaminated water is attracted to the resin by an opposing charge mechanism. When the perchlorate attached to the resin, it looses its chloride ion. The resin eventually reaches adsorption capacity and becomes saturated with perchlorate and ions leading to it being disposed of or regenerated.