BIOFerm Energy Systems will be presenting at the International BIOMASS Conference & Trade Show at the Portland Convention Center in Portland, OR. The show runs April 28-30. BIOFerm’s presentation is titled “Hybrid AD Systems for Food Processing Residue” and will be presented as a part of the food processing residue speaker track. The presentation will be given at 3:30 pm on April 29th, 2009. For more information on the show, click here.