Understanding Biogas

Biogas

Biogas is combustible gas derived from decomposing biological waste in the absence of oxygen (anaerobic digestion).
Biogas can be produced from wet or mixed organic waste streams (biomass). The anaerobic digestion conversion processes utilise natural occuring microbes and biochemical pathways to convert waste into biogas. During anaerobic digestion, around half of the carbon content of the biomass is converted to biogas, which can be directly used in a burner/condenser or fed into a gas engine to produce electricity and/or thermal energy (heat). The rest of the biomass becomes organic slurry which can be used directly as a fertiliser or separated into a liquid and solid phase to produce animal bedding/soil conditioner, liquid fertiliser and recycled water.

What is biogas technology?

Biogas technology is a generic term for the technologies associated with the anaerobic digestion of organic waste (food waste, animal waste, sewage etc) to produce methane gas and an organic sludge (a recyclable by-product). Biogas technology is widely acknowedged as the best way to treat wet organic waste. Farm owners, food processors, waste managers and sewage treatment plant operators can all benefit from treating their organic waste streams with biogas technologies.

Our biogas plants can help:

  • Reduce the odours associated with intensive wet organic waste.
  • Reduce offsite waste transport, handling and disposal costs.
  • Provide opportunities for direct use of biogas for cooking, lighting, heating or cooling.
  • Improve onsite water efficiency.
  • Reduce the size and maintenance of existing effluent management systems.
  • Extend the life of associated effluent infrastructure, such as septic tanks.
  • Create new revenue streams.