Purified water is water that is mechanically filtered or processed to be cleaned for consumption.
In recent decades, a combination of the foregoing processes have come into use to produce water of such high purity that its trace contaminants are measured in parts per billion or parts per trillion.
Water can also be purified by other processes including reverse osmosis, carbon filtration, microfiltration, ultrafiltration, ultraviolet oxidation, or electrodialysis, distilled water and deionized water been the most common forms of purified water. Purified water has many uses, largely in science and engineering laboratories and industries, and is produced in a range of purities.
Ionpure CEDI technology removes ions from water using an unique combination of ion exchange membranes, ion exchange resins and electricity.
For more information, check NE201407 According to a 2007 World Health Organization report, 1 billion people lack access to an improved drinking water supply.
An upcoming method of water desalination called capacitive deionization, CDI for short, has shown promise in the removal of low salt concentrations at lower energy when contrasted to other current technologies. Usually, while resulting in an improved water supply, Upon applying a potential difference across two porous electrodes, ions are temporarily immobilized and removed. It explains in detail the difference between osmosis and reverse osmosis.
This educational video introduces the basic concepts of reverse osmosis including pretreatment through particulate carbon filtration.
Distillation alone does not guarantee the absence of bacteria in drinking water unless containers are also sterilized.
Distilled water is produced by a process of distillation and has an electrical conductivity of not more than 10 µS/cm and total dissolved solids of less than 10mg/litre. Whenever leaving solid contaminants behind, Distillation involves boiling the water and after all condensing the vapour into a clean container. Distillation produces very pure water.