Slingshot is a water purification device created by Dean Kamen. Powered by a stirling engine running on a combustible fuel source, it claims to be able to produce clean water from almost any source. The device takes contaminated water and runs it through a vapor compression distiller that produces clean water, producing 250 gallons daily, enough for 100 people. The test devices have been used with ‘anything that looks wet,’ including polluted river water, saline ocean water, and raw sewage. In a demonstration at a technology conference in 2004, Kamen ran his own urine through the machine and drank the clean water that came out.

A pair of Slingshot devices ran successfully for a month in a village in Honduras during the summer of 2006. While the initial devices cost hundreds of thousands of dollars, Kamen hopes that increased economies of scale will allow production machines to be made available for $2,000 each. The Slingshot process operates by means of vapor compression distillation, requires no filters, and can operate using cow dung as fuel. In addition to producing drinkable water, the Slingshot also generates enough electricity to light 70 energy-efficient light bulbs.Kamen hopes to seed thousands of the units with local village entrepreneurs, in much the same way independent cell phone businesses have thrived and gradually changed the face of many impoverished areas around the globe.


Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s