What are the ways that water filtration be accomplished?
Anion exchange devices can treat either point-of-entry or point-of-use. They reduce the concentration of sulfate, nitrate, and arsenic in water. Point-of-use units are connected to a single tap and remove hazardous chemicals from drinking and cooking water only.
Cation exchange water softeners remove the calcium and magnesium ions found in hard water by exchanging them with sodium (or potassium) ions. Once all the ions are fully exchanged, the water softener undergoes a regeneration process to flush the system of excess ions and recharge with new sodium ions.
A number of water treatment systems can be used to remove microbiological contaminants that may cause illness. Ultra Violet (UV) light disinfection is one water treatment system that can be used to remove most forms of microbiological contamination from water.
Reverse osmosis (RO) is a water purification technology that uses a semipermeable membrane. Reverse osmosis can remove many types of molecules and ions from solutions, and is used in both industrial processes and the production of potable water. The result is clean water. In fact, this is the same process that almost all bottled water providers use.