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Thursday, September 10, 2015

ON GETTING CHEAP DRINKABLE WATER FROM OCEAN

Feeling Rebloggy

“We basically stumbled across a plastic with a particular ability to allow water vapor to pass through it, but virtually nothing else,” said DTI’s Mark Tonkin, who developed the application over a five-year period.

In the irrigation system, the pipes are installed underground and filled by gravity from saltwater tanks above. Plants receive freshwater from the water vapor that permeates through the pipe walls and then condenses. The pipes need to be flushed periodically to get the salt out, but pumping or pressurizing is not necessary.

TakePart.com


http://www.takepart.com/article/2014/12/05/why-special-kind-plastic-pipe-could-be-solution-californias-water-woes?cmpid=ait-fb