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Date:12/23/2011

r and Christmas cards because at the moment there is no better solution. However, if this technology can be developed further, waste paper might ultimately provide a great, environmentally friendly alternative to fossil fuels. There's more work to do to assess the effectiveness and benefits of the technology, but we think it has significant potential."

In the study, published this month in the Royal Society of Chemistry journal Energy and Environmental Science, the researchers describe how they fermented different types of paper and cardboard in the laboratory to assess how chemically and economically feasible it is to turn them into ethanol fuel. They found that it is not only possible in laboratory experiments but should be economically viable on a large scale as well.

Across the year, around 60 per cent of the UK's waste paper is collected for recycling or other waste management schemes, which equates to around 8 million tonnes. The scientists say that using a well-tested fermentation method and a novel cocktail of efficient and cheap chemical enzymes, their system could be scaled up to the size of existing industrial processing plants and be used to convert 2000 tonnes of waste paper per day into biofuels.

There is already an urgent need for councils to prevent reusable materials like cardboard and paper being sent to landfill sites, saving money and avoiding unnecessary waste, a message echoed by the Mayor of London Boris Johnson in a speech about Recycle for London's Nice Save campaign this week. This new research shows that in addition to recycling, waste materials can be used to generate energy, and some of that can be as valuable vehicle fuel.

High grade ethanol, such as that made in this study, can be (and already is) blended with fossil-based petrol to make a fuel with lower greenhouse gas balance than conventional petrol for cars and vans, and can also be used to power large diesel vehicles like buses and trucks, if mo
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Contact: Simon Levey
s.levey@imperial.ac.uk
44-020-759-46702
Imperial College London
Source:Eurekalert

Page: 1 2 3

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