![Willow, a green treatment plant turns sewage from dirty to desirable](http://www.imperial.ac.uk/ImageCropToolT4/imageTool/uploaded-images/newseventsimage_1631535779663_featurenews2012_x1.jpg)
![shadow](http://www.imperial.ac.uk/assets/news/img/image_shadow_sidebar.png)
waste water winner
Willow, a green treatment plant turns sewage from dirty to desirable
Natural filtration by willow trees could be the answer to a growing waste problem, producing clean water, renewable biofuels and 'green' chemicals.
3