RELATED: WORLD WATER DAY: SATELLITES ARE KEY TO ADDRESSING GLOBAL WATER SCARCITYOur "blue marble" is a water planet, with over 70 percent of the earth's surface covered by water. -- Helen Zille, former Cape Town mayorDesalinating sea water is much more expensive than getting fresh water from rivers or groundwater, water recycling and water conservation, but for many places on earth, desalinating is their only option. The reverse osmosis desalination process uses an ultra-thin, aromatic polyamide thin-film, but it has a number of maintenance issues. Wave-powered desalination plants began operating in Australia on Garden Island in 2013 and in Perth in 2015. Florida has 35 plants, with the Cape Coral plant being the largest low pressure reverse osmosis plant in the world.

Source: The North Africa Journal April 02, 2019 03:45 UTC