How its Made: Anaerobic Digester
Anaerobic digestion is a process by which bacteria and heat is used to break down bio-mass (grass clippings, leftover food or animal waste). This results in useable soil, heat and biogas. In Lynden where we get the biogas they are running it through a converted diesel engine to produce electricity. However they found that using the un-filtered biogas deteriorates the oil much faster so the oil is changed at higher intervals. How its Made: Filtered Bio-Methane
In 2005 the VRI wanted to find a process to filter the biogas and use it to fuel our vehicles that already ran on CNG. We also want to prove that it's economically feasible to filter the biogas and use it as a renewable fuel. We are currently in the process of refining our refinement process with the help of BP. |