By Megan Treacy, Source: Treehugger
Access to clean drinking water is a crucial issue for many people living in developing countries. Testing water for pollution usually involves collecting samples and taking them back to a lab. More high tech solutions include mass spectrometry — a very sensitive process that requires expensive specialist equipment — to detect toxins in water supplies, but that can’t be used for routine water monitoring and is too expensive and complex for using in developing areas.
Looking to find a better solution, researchers at the University of Bath along with the Bristol Robotics Laboratory at the University of the West of England have designed an inexpensive sensor using 3D printing that is powered by bacteria and can be placed directly in rivers and lakes to continually monitor water quality.
Read more at: Treehugger
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