Biological utilisation refers to the process of using biological waste, such as plant residues, paper and kitchen waste, to be decomposed by microorganisms such as bacteria and fungi and converted into biogas.

Biological utilisation takes place in special plants, so-called biogas plants.
In these plants, the organic waste is fermented in the absence of air and in the presence of microorganisms. These microorganisms convert the organic components of the waste into biogas, which consists mainly of methane and carbon dioxide and can be used as a source of energy.

Biological utilisation has both ecological and economic advantages. It reduces the amount of waste going to landfill and helps to reduce dependence on fossil fuels. It generates renewable energy and thus contributes to climate protection. It can also help to strengthen the local economy by creating jobs in waste utilisation and energy production.
However, it is important to ensure that biogas plants are operated properly to avoid negative impacts on the environment. This includes, for example, controlling emissions, operating the plants under hygienic conditions and processing waste in accordance with applicable regulations and standards. A comprehensive waste strategy should combine waste prevention, reuse, recycling and recovery to minimise environmental impact and maximise resource efficiency.