Open the septic tank and move sludge from the tank to the heat-safe metal container. Ideally, this container should be somewhat underground to insulate it. Add anaerobic digester bacteria to start a colony there. Close the container.
Heat the container. At the right time of year, it can be placed in the sun and left to sit. In colder climates, heaters will need to be installed to keep the contents of the container at a suitable temperature for bacteria growth. The bacteria will consume the sludge and give off methane.
Install a pipe that goes from the top of the bacteria container to the compressor. Install a pipe from the compressor to a tank strong enough to hold methane gas under pressure. Periodically, run the compressor to pump methane gas from the metal tank to the gas tank for storage.
Use the stored methane with compatible machinery. Heat a water heater with methane. Run a stove with methane.
Things You Will Need
- Septic system
- Heat-safe metal container
- Anaerobic digester bacteria
- Gas tank
- Execute this project only if there is plenty of space for all the necessary equipment.