In Oslo, Norway, more public transport buses will soon run on green fuel, thanks to a new plant able to process food waste and produce biogas and agricultural fertilizers.
In the Norwegian capital 65 buses fuelled by biogas produced from sewage sludge are already in use. At the end of 2012 a new plant is expected to start operations: with an annual processing capacity of 50 000 tonnes of food waste, it will produce environmentally friendly fuel for 135 more public buses as well as organic fertiliser enough for roughly 100 medium-sized local farms.

The new plant, that is being constructed by the Norwegian company Cambi AS, will employ a method known as thermal hydrolysis, where raw materials such as food waste or sewage sludge are boiled under high temperatures and pressure, thus yielding substantially more biogas compared to conventional facilities.
An increase use of biogas will reduce public transport emissions, especially particulate matter, and improve air quality in Oslo. At the same time, the use of nearly 4 million litres of conventional diesel fuel will be avoided, with considerable economic benefit.

For more information please follow this link or visit Cambi website