New filtration system http://www.digitaljournal.com/tech-and-science/science/what-you-should-know-about-the-top-science-stories-of-2015/article/...

New filtration system http://www.digitaljournal.com/tech-and-science/science/what-you-should-know-about-the-top-science-stories-of-2015/article/481551#ixzz4TDq54ZfG