From The Guardian, 16 December 2016:
In a world of dwindling resources, waste is one thing in no danger of running out. Each Australian generates more than 2,000kg of waste per year, and around half of that ends up in landfill. But at least some of that waste could be turned into a resource that is both in demand and in decline: fuel.
The global waste-to-fuel industry is considering options as varied as agave, plastics and disused tyres to solve two environmental problems – reducing waste and increasing fuel production.
Landfill and agricultural wastes are already burned to generate heat and electricity, and methane is captured from landfill for the same purpose, but these technologies are both relatively low-hanging fruit.
A greater challenge is the production of liquid fuel that can be readily and reliably substituted for conventional petrol or diesel. The Queensland government’s recently appointed biofutures ambassador, Prof Ian O’Hara, says waste-to-fuel is a promising area. Read more.