Biowaste to Biofuel Process (IMAGE) DOE/Pacific Northwest National Laboratory Caption Wet wastes from sewage treatment and discarded food can provide the raw materials for an innovative process called hydrothermal liquefaction, which converts and concentrates carbon-containing molecules into a liquid biocrude. This biocrude then undergoes a hydrotreating process to produce bio-derived fuels for transportation. Credit (Illustration by Michael Perkins | Pacific Northwest National Laboratory) Usage Restrictions Credit: (Illustration by Michael Perkins | Pacific Northwest National Laboratory) License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.