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This Filter Could Bring Clean Water to Everyone on Earth

clean water filterFor years, residents of the developed world have enjoyed access to clean, on-demand drinking water. It's a privilege not shared by those in poorer countries, who often struggle to avoid dehydration and waterborne disease. And as continued climate change and population growth strain supplies across the globe, water scarcity will likely affect 50 percent of the world's population by 2030, including many in Europe and North America.

But a team of Swiss engineering students aim to fight these issues with a new, reusable water filter called DrinkPure. It's a small mouthpiece that screws onto the top of any standard PET water bottle. All you need to do is fill the bottle with non-potable water, screw on the filter, and squeeze. Clean, filtered water is instantly available.

The DrinkPure has a three-step filtration process. Water passes through a prefilter to remove plant matter and dirt, then an activated carbon filter removes chemicals, odors, and heavy metals. Lastly, the water passes through a special polymer membrane that filters out bacteria. The membrane was developed by the students themselves, while the other two filters are essentially off-the-shelf parts.

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