ENERGY experts at Aston University have joined forces with UK waste company Biffa to investigate a new method of recovering energy from landfill sites. Biffa, which operates over 30 of the UK's landfill sites, currently uses gas from these sites to power engines that generate electricity. However, tighter regulations, along with the changing nature of the waste that ends up in these sites, have driven Biffa to investigate more efficient methods of recovering energy from landfill. The company has therefore teamed up with Aston's Bio-Energy Research Group (BERG) to investigate the potential of pyrolysis, a process that heats organic waste to high temperatures in the absence of oxygen and converts it into gaseous or liquid fuel.
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