Advanced E-Team Grant Profile

UV-Tube Project
University of California, Berkeley, 2002

Every year, waterborne viruses and bacteria kill millions of children under the age of five. Improved water supply and sanitation could prevent many of these deaths; currently, however, one out of four people lack access to clean water. Though the technology for disinfecting drinking water exists, high costs make it inaccessible for many. In response to this problem, this E-Team has developed the UV-Tube, a highly effective method for disinfecting drinking water that is also cost effective. The UV-Tube, a very simple technology, eliminates harmful microorganisms directly from the water source, using ultraviolet (UV) light as a disinfectant. The UV-Tube technology is environmentally friendly, deactivating pathogens without generating harmful byproducts. In addition, the technology adapts to different communities and circumstances; users can construct the UV-Tube from locally available parts. It also operates passively, without extensive maintenance or monitoring.

Currently the E-Team plans to integrate changes from their studies into a new design, investigate additional potential materials (recycled plastic soda bottles, stainless steel, and pottery), redesign the UV-Tube, and test the new design in a real-world situation. The team hopes to complete a list of potential materials and adaptations for users in all types of geographic locations.

The UV-Tube project consists of several graduate students, one in civil and environmental engineering with field experience in Patzcuaro, and the other in energy and resources. They work with an undergraduate in environmental science, a member of the Lawrence Berkeley Laboratory, and the director of the Renewable and Appropriate Energy Laboratory, who is also a faculty member, and are advised by Dr. Lloyd Connelly, a representative of the Energy Sector Management Assistance Group, and the president of Grupo Interdisciplinario de Technolgías Rural y Apropiada in Patzcuaro.


Key Faculty

Professor Daniel M Kammen, Advisor, Energy & Resources Group View faculty profile >>

Associate Director Jyl Baldwin, Advisor, Sponsored Projects Office



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