NEWater is treated wastewater that has been purified using microfiltration, reverse osmosis, and ultraviolet technologies to produce potable water. It is mostly used for industrial purposes but is also consumed by humans. The water undergoes biological and chemical treatment at a water reclamation plant before microfiltration removes solids. Reverse osmosis then removes ions and molecules, and ultraviolet light provides final disinfection before use. Singapore began developing the technology in the 1970s and now has five NEWater plants, with the goal of recycled water meeting 50% of demand by 2060.