A profile from SciDev's PhDs in Focus:
Sugar cane is one of Kenya's most important cash crops. Currently, most of the pulp, or 'bagasse', left after the cane's juice is extracted goes to waste. In this film, John Mwero, an engineer at the University of Nairobi, talks about his PhD research on adding the ash left after burning bagasse to cement. Not only does doing so recycle this readily available by-product, but it also strengthens concrete.
[view whole blog post ]