Landfill gas plants

Landfill gas is created by the breakdown processes of organic compounds and materials in waste. A distinction is made between aerobic and anaerobic processes.

The composition of the gases depends very much on the age of the landfill, the type of material deposited and the landfill.

The first two months after tipping, the gas contains higher levels of nitrogen and oxygen from the supplied air and contains hardly any carbon dioxide and no methane. Immediately after sealing the landfill, the carbon dioxide content increases drastically, while methane takes a few more months and is only formed at the beginning of the anaerobic phase.