Bio-Bug moves on methane
August 6, 2010 § Leave a comment
Toilet humour time: meet the Bio-Bug, launched yesterday in Bristol by Wessex Water to promote the possibilities of powering a car with human poo. This tastefully-liveried Volkswagen Beetle runs on waste methane – biogas – from the GENeco sewage treatment works near the city, which also generates electricity. The methane is derived from sewage sludge in an anaerobic digestor (a concept familar to all fans of The Archers).
Wessex Water says that the car can do 10,000 miles a year on the waste from 70 households, and that it hopes to run more of its fleet on biomethane in the future. This isn’t a new idea, of course: those of a certain vintage will remember the ‘Po-Ped’ advertised in Viz some twenty years ago…
The more sophisticated Bio-Bug is still a bi-fuel vehicle, however, needing to run on conventional petrol at start-up, but GENeco says that its biomethane is now far purer than in earlier experiments and that the old problems of inefficiency and energy loss have now been solved.