When talking about biodigesters, emphasis is placed on a container that is hermetically closed, where organic matter is deposited inside, such as vegetable or fruit type waste (excluding citrus) and ruminant or human excrement. .
Its function is basically to be a powerful technology with care for the environment, where the rates of waste that usually reach nature are reduced, taking into account its greatest component: a source of clean energy.
What is sought with the biodigesters on the farms is that they manage to produce their own energy supply, thus generating great national savings in electricity.
If you are interested in the topic, you can find out some of the most common questions below.
How does the phenomenon of digestion occur?
Everything occurs at the moment when a group of anaerobic bacterial microorganisms (bacteria that do not live or proliferate when oxygen is present), are present in the eses, which act on organic waste producing a mixture of gases with high content of methane, known as biogas, which is used as fuel.
What is needed?
Basically all that is needed for the process to be successful is to get anaerobic bacteria and emulate a medium with oxygen-free conditions.
Bacteria are obtained from fresh feces, and the medium can be a tubular plastic bag or a hole in the plastic-covered soil where oxygen is depleted.
What models of biodigesters exist?
There is a great variety, however there are three that are considered main.
- Floating Deck: originated in india.
- Fixed dome or double compartment system: implemented in China.
- Tubular plastic model: born in Taiwan and the cheapest.
Result
At the end of this process, a high level of waste is obtained, which has a significant percentage of nutrients and organic matter. It is important to recognize that the fundamental characteristic of biodigesters is the decrease of the pollutant in the excrement, reducing the chemical demand for COD oxygen and the biological demand for BOD oxygen.
There are a wide variety of ways to transmit waste into energy. Biodigesters are only one category which serve depending on the volume of the residue, but what is certain is that they can be adapted to the needs.
Including biodigesters on your farm is an excellent option to avoid the spread of waste in nature, in addition to finding new healthy sources of energy.
