Purification

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Lifestraw: A $5 Water Filter Provides Clean Water For a Year

The Lifestraw is a simple looking device, merely a plastic tube at first glance, but inside is a powerful water filter, capable of killing disease-causing bacteria and viruses, and filtering particles down to the size of 15 microns. Distributing the Lifestraw to people without access to clean water can make the difference between life and death to them, and the cost to us is only about $5.

April 13th

Toilet to Tap: Orange County Turning Sewage Water into Drinking Water

The Orange County Water District is purifying wastewater into drinking water at a $481 million recycling plant. The plant uses microfiltration, reverse osmosis, ultraviolet light, and hydrogen peroxide disinfection.  70 million gallons of sewer water is treated a day in Orange County, California meeting the drinking needs of over 500,000 people, including visitors to Disneyland.

March 14th

The Watercone: A Simple, Effective Solar Still

In many parts of the world, lack of access to clean, potable water is a major issue. Water may be found nearby, but only in a brackish or polluted state. Areas close to the ocean may see miles of water, but not a drop to drink. UNICEF estimates that every day 5000 children die as […]

March 13th