Innovation at a dairy farm
People don’t normally think of dairy farms as being on the cutting edge of technology advancements, but one dairy farm in eastern Oregon is breaking the stereotype. With the help of NW Natural’s Smart Energy program and the Bonneville Environmental Foundation, Threemile Canyon Farms is building a first-of-its-kind biodigester to reduce the carbon dioxide emitted from cow manure.
Cars on the road, heating and lighting our homes all contribute to carbon dioxide and other greenhouse gases, but the methane from cow manure is a 21 times more potent greenhouse gas than carbon dioxide. (HINT: This statement should help you answer one of the current Smart Energy Challenge questions. (Submit your guess here.)
A biodigester is an enclosure that traps methane produced by bacteria which breaks down organic matter – essentially waste. The resulting product, biogas, can be used in place of natural gas or propane for a variety of functions.
In short, when organic material decomposes, it emits methane – which is approximately 21 times more potent of the greenhouse gas effect than carbon dioxide. A biodigester speeds up decomposition and captures the methane, protecting the environment.
The biodigester is expected to be fully constructed by the fall of 2009. The project is expected to reduce nearly 1,500 tons of CO2 annually – using the waste of 1,200 cows that produce roughly 144,000 pounds of manure per day!
The farm is located on 93,000 acres and combines both crop farming and dairy operations. Because of its size, Threemile Canyon Farms is an excellent testing ground for new technologies like biodigesters. A functioning biodigester at Threemile Canyon Farms has great potential to become a model for other farms throughout the region.
Check out this photo of the progress that’s been made so far:

The lagoon
May not look like much now, but this is the type of innovative projects that are leading the way to help reduce greenhouse gas emissions and create alternative energy sources.

