China filters

 water

 through plants

The biggest rivers are very polluted. In a new district of Wuhan on the border of the Yangtzé, the local government  uses phytorestoration to treat waters and reuse it with the French company Phytorestore. Inspired by the cycles of  nature, this technique of decontamination is using plants as agents of treatments.  A way allowing to reduce by half the tap water consumption.