Cleaner Wash

摘要

Taking a shower draws more water and more energy than any other daily household activity. Low-flow showerheads save only a little of both, typically at the expense of comfort. That's because they let the hot water-and all the heat energy it contains-go down the drain. In 2004, Peter Brewin, an industrial-design student at the Royal College of Art in London, set about creating a more efficient shower that doesn't require lower pressure. It couldn't just capture and recirculate the water; most countries require shower water to meet potable-water standards. So instead he designed a miniature treatment plant that continuously captures, cleans, and recirculates 70 percent of the water used during a shower.