Why not clean the world of its rubber-tyre wastes using them to clean its water in turn! — by the way Yuefeng Xie did? The kind of rubber tyres that lie at the river-bottoms and at the junkyard-backs creating nuisance the world over, could be recycled to form ideal water filters!
Yuefeng Xie, an environmental engineer at Penn State University, US., believes that rubber crumbs — 1 to 2 millimeters across — can ideally solve the water of the world of its suspended contaminants, because of the their compressible nature.
Unlike the traditional water filtration systems, regardless of how the filter is stacked the crumbs at the bottom of the column are always smallest because they are squashed by the weight of the column.
Xie has obtained a patent for the rubber crumb filter in November 2005. According to him, it works four times faster compared to conventional filters.
