BlackGold Biofuels’ groundbreaking technology converts sewer greases and other waste oils into biodiesel, a low-carbon diesel fuel. The fats, oils, and greases (FOG) pumped out of grease traps or flowing through sewer pipes to wastewater treatment plants are a financially and environmentally costly waste. Sewer grease is the leading cause of sewer overflows nationally and a major cost center for water utilities. With the ability to produce high-value biodiesel for internal use or for sale, a nuisance pollutant is transformed into a revenue stream. So everyone profits – including the environment.