Anaerobic digestion is a method of waste management that focuses on creating a renewable energy source from both industrial and domestic applications. It is the process of breaking down waste without the use of oxygen, using micro-organisms and a fermentation process resulting in fuels or energy.
Although it occurs in some places such as within event sediments, this process involves adding water and bacteria to the organic materials so they can break down the other components. The carbohydrates are broken down so they can react with the other bacteria to produce acids, ammonia, hydrogen and carbon dioxide. These bi-products are then converted into methane gas that can be extracted or used to fuel the process even further.
This is a means of recycling that can then result in both methane gas and fertiliser for crops. It means that it can work in an optimal cycle to allow a secure source of renewable energy.