Composting or digestion in landfills?

Composting is a process to get rid of wastes. In this process, waste is turned to carbon dioxide at present of oxygen, while the remaining materials are generally rich in nutrients and used for cultivating flowers or grasses. However, if the bacteria has no access or limited access to oxygen, anaerobic conditions results in methane formation. Methane is a greenhouse gas and much worse than carbon dioxide. It is a typical problem of landfills with typical dept of 10-15 m. The methane gas together with hot temperature results in smoke and explosions.

(Methane gas development from a landfill in Jayapura)