"Desalinization plants" refer to facilities that turn seawater into fresh water by removing salt and other impurities through a process called desalination. Full definition
In any case, a new market analysis by Lux Research forecasts that the global desalinated water supply will grow at a compound annual growth rate of 9.5 percent during the next decade as Australia, Israel, Singapore, California and others build desalinization plants for seawater and inland brackish water as well as for water recycling. (scientificamerican.com)