Methane Fermentation

Methane Fermentation is a process of eliminating organic matter in the sludge.  In the process, methane is generated along with carbondioxide.  Methane can be used as a fuel.

Methane Fermentation involves digestion of organic matter using bacteria.  The bacteria are called methanogens.  

The digestion happens in the absence of oxygen (anaerobic digestion).  Anaerobic digestion will reduce the organic matter by about 50 percent.  It is posible to extract about 1000 litres of gas from one kg of organic matter.

The residual matter can be used as fertilizer.