Scientists in Canada have demonstrated a promising new device that can purify a gallon of water a day, for just a few cents per gallon. Better yet, it’s made of old tires, and can even generate small ...

Solar desalination using solar stills presents a sustainable, low-cost method to convert saline or brackish water into potable water by harnessing solar energy. This approach utilises simple ...

This is a preview. Log in through your library . Abstract In issue #46 we invited readers to contribute their designs for solar water purifiers (solar stills). We received a range of interesting and ...