Transform your waste into energy

Methanisation, based on the natural fermentation of organic waste, can be used to produce biogas, a renewable energy source with high added value. Biogas can be used just as it is, in certain cases, or it can be purified and then injected into gas grids. We then talk of biomethane, which can be put to the same uses as natural gas, and which can also be used as a fuel in NGV/bioNGV vehicles. The methanisation process also produces a digestate which can be used to replace synthetic agricultural fertilisers.

What waste can you recycle?

There are many types of waste, also referred to as “inputs”, that can be recycled by methanisation:

• Livestock effluents or animal manure: pig and cattle slurry and manure, poultry manure, etc.

• Crop residues: maize, cereals etc.

• Intermediate energy crops: plants sown between two main crops to help regenerate the soil.

• Local authority green waste: grass clippings, roadside verge cuttings etc.

• Food waste from restaurants.

• Agribusiness waste: effluents rich in sugars or alcohol, fruit and vegetable residues etc.

What are the methanisation processes?

Methanisation units can use a dry system or a wet system. Which process you choose depends on the nature of the inputs and, particularly, their dry matter content. The wet system is used therefore for organic matter with a dry matter content of less than 15%; the dry system is used where the dry matter content is between 15% and 40%.

Waste processing by methanisation is a powerful engine driving the circular economy. This solution can be used to recycle the co-products of industrial and agricultural activities in the territories, to produce renewable energy locally, and to create local jobs. It also helps make agriculture more sustainable, by generating stable additional income for farmers, and providing an alternative to synthetic fertilisers: digestate, the co-product of methanisation, is in fact a natural fertiliser. The methanisation of your organic waste is a win-win solution for the environment and for all business segments.