Distillation or desalinization refers to any of several processes that remove some amount of salt andother minerals from saline water. One potential by product of desalination is salt. Desalination is usedon many seagoing ships and submarines. Most of the modern interest in desalination is focused ondeveloping cost-effective ways of providing fresh water for human use. Along with recycled wastewater, this is one of the few rainfall independent water sources.