Take one down, pass it around, 99 bottles of biofuel on the wall!
Recent research has examined the use of agave, the plant used in making tequila, to create energy. Breweries too are using production leftovers to serve up alternative fuel, and not just to fuel a night of debauchery.
Collected waste from beer-making can be used in methane producing bioreactors.
For example, Anheuser-Busch InBev, makers of Budweiser, collects waste from nine of its U.S. breweries in million-gallon bioreactors. Burning the methane the bioreactors produce recovers 20 percent of the heat energy used in the brewing process. The result is millions of dollars in savings.
Improving that process could help breweries and other industries create more gas and save even more money. So, a team of scientists recently studied the complex mix of organisms creating methane in Anheuser-Busch InBev's bioreactors.
They found a diverse array of 4,962 types of bacteria making up the gas-belching sludge. In fact, each bioreactor hosted its own distinct mix of microorganisms; 145 of the bacteria were so unique they could be used to predict which bioreactor the bacterial sample came from.