
The Green America Biofuels facility produces 65 million gallons (246 million liters) of ethanol each year. Integral to that production are five storage and process tanks. The tanks are coated to protect against corrosion. But plant management has more to worry about than just this electrochemical phenomenon. A biological process thrives at the site, too. You know it when you see it—dark black streaks on the sides of tanks or buildings—and it must be stopped.
Jun 5, 2025