I recently came across an interesting article posted at Discover which talked about a company by the name of Micropidas. It seeks to convert human effluent into a polyesterbelonging to polyhydroxyalkanoates or PHA family. Why is this important? Plastics often times are derived from oil. Using this bio-based approach cuts that out. In this case, there is an added benefit: they produce plastics while cleaning up the water. And lastly, Micropidas claims that the plastic produced is actually bio-degradable! I haven't had time to research this in more detail, but thought I would share this here.
To read the full, article please go here: http://news.discovery.com/tech/poop-plastic-puts-waste-to-work.html