Value Added Products from Pyrolysis of Sludges from Pork Production
Published on: 2017-09-05
Treatment of waste products from pork production results in two types of sludge. The first is high-fat sludge from physical treatment and dewatering. That sludge is further treated by a proprietary biological process, resulting in a second type of sludge that generates less odor. Pyrolysis of both sludges yields an oily distillate, an aqueous distillate, and biochar. The oily distillate from the physical treatment consists primarily of aliphatic and aromatic hydrocarbons that are components of diesel fuel, and thus, has commercial potential as a fuel precursor. The oil from the biological treatment is a complex mixture with less commercial potential. The biochar from both types of sludge was evaluated for its potential as a fuel and as a soil amendment.