Advances in reverse osmosis membrane technology for seawater desalination have significantly driven down capital and operating cost.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/reverse-osmosis-membrane-solution
[2] http://admin.indiaenvironmentportal.org.in/category/author/harold-fravel
[3] http://admin.indiaenvironmentportal.org.in/category/journal/everything-about-water
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-resources
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-treatment-technology
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/desalination