Organic Value Recovery Solutions LLC © Organic Value Recovery Solutions 2010 © Organic Value Recovery Solutions 2010 Impact Statement D. Craig Sheppard, Larry Newton 11/8/05 Program:  Research Department:  Entomology, Animal and Dairy Science County: Tift Category:  Competitive Agriculture/Harmony with the Environment Keywords:  Biodiesel, Biogas, Methane, Manure Management, Black Soldier Fly Funding Source: Hatch Act, USDA Competitive grants Other Collaborators: Larry Newton, Animal and Dairy Science  Tom Matthews, Washington State University Biodiesel and Protein from Soldier Flies Exceeds Value of Biogas from Manure Situation: Manure management continues to be a major concern for livestock producers and others concerned with environmental quality.  Poorly handled manure results in odors, pest insects and degraded water quality.  Biogas production (methane and other gasses) is widely viewed as a better manure management practice that can recover considerable value. College Response: A novel system has been developed to digest manure with the non-pest black soldier fly and produce valuable products.  Manure is reduced to a humus-like material with a 75-80% reduction in problematic nutrients while also producing prepupae containing 35% oil, 42% protein. Results: If the prepupae oil is processed into biodiesel (been done) the energy in this biodiesel is about 67% of the energy that could have been collected as biogas from the original manure fed to the soldier fly larvae.  In addition to the biodiesel a significant amount of protein and other valuable products remain after oil extraction.  The biodiesel ($2.00/gal) and protein feed ($.25 per lb) recovered from the manure of one feeder pig, for instance, would be worth $3.00 and $5.40, respectively.  The total value of $8.40 from the soldier fly recovery is considerably more than the biogas value of $4.50.  Also, it is impractical to store or transport biogas, making sales unlikely, and engine modifications are required.  Problems associated with methane and anaerobic digestion appear to limit the use of this system.  A number of farms experimented with biogas during the energy crisis of the 1970's.  In Iowa and Georgia, only one in each state is still operating.  Manure digestion with soldier flies practically eliminates environmental problems and produces significant saleable products.  The two soldier fly products mentioned here are valued at 87% more than the biogas from the same manure.