Duke City Firm Is Developing Devices to Desalinate and Purify 'Produced Water'
(ABQ Journal is once again free but you have to wait 30 seconds and watch an ad before going to the article)
They are using distillation, a viable alternative if you happen to have some recoverable waste energy lying around. These guys raised $3.1 million for that? Wonders never cease. But water is a hot ticket, and we make the best small ozone generator on the planet.