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Did you know? Courage - Ashok GadgilPrinter-Friendly Format
Doug Engelbart
Thomas Fogarty
Ashok Gadgil
Stephanie Kwolek
Ashok Gadgil Biography A UV Waterworks system was installed in February 2000 in the village of San Ysidro Gallinero in Guerrero, Mexico. Patents This schematic shows a UV Waterworks installation when a pressurized supply of water is available. The supply pressure is used to filter turbidity from the water. Videos A UV Waterworks unit installed outside of a kitchen at an AIDS hospice near Durban, South Africa. Diagrams
Ashok Gadgil's UV water disinfection system is manufactured by Water Health International. The simple machine can clean enough water every day for 1,000 people.

Ashok Gadgil's UV water disinfection system is manufactured by Water Health International. The simple machine can clean enough water every day for 1,000 people.
In December 1992, an outbreak of a new and dangerous strain of cholera began in southeastern India. Within months it had spread into neighboring countries, killing up to 10,000 people. The tragedy inspired Ashok Gadgil, an Indian-born scientist working at the Lawrence Berkeley National Laboratory in California, to look for a new way to purify drinking water. Using science no more complex than the ultraviolet light emitted by an unshielded fluorescent lamp, he built a simple, effective, and inexpensive water disinfection system. Dozens of these systems are now installed around the world.

An approach tailored to developing countries
After the Bengal cholera outbreak, Gadgil and one of his students devised a basic but highly effective water purification system for India and other relatively poor countries. "At the bare bones, using the simplest engineering, we could disinfect water for half a cent per ton. That's shockingly cheap. You could disinfect water for one person, a full year's drinking supply, for a couple of cents."
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Doug Engelbart Thomas Fogarty Ashok Gadgil Stephanie Kwolek Paul MacCready
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