Vegetable biomass from waste or energy crops.
A typical example is the use of chopped maize (material with a good yield of transformation into biogas).
* A good option farmers with sufficient acres of land available for the purpose.
Manure from cattle, swine and sheep.
As well as being a good source of income, this reduces odours and improves land health and hygiene. The sanitised residual sludge ("digestate") can be stored and used for agricultural purposes.
* A good option for large livestock farms.
Animal by-products, as permitted in Regulation (EC) No 1774/2002. This can include parts such as rumen content, soft tissues and blood from slaughterhouses.
* A good option for slughterhousesm which often do not have appropriate disposal sysstems at theri disposition,
Urban waste also known as OFMSW (Organic Fraction of Municipal Solid Waste). Taken from sorted waste collections, this is the organic fraction ("wet waste") which is normally sent to composting plants. Anaerobic digestion is a complementary technology - not an alternative to composting - but a process which allows for the maximum recuperation of materials and energy from waste.
Organic sludge, for example from the dairy industry. As with urban wet waste, anaerobic digestion is designed to optimise the recuperation process from this type of waste.