Brazilian researchers develop method to produce concentrated vinasse

By | June 03, 2009
Researchers at Fermentec, a Brazilian consulting company, have developed a process that allows ethanol production facilities to reduce the volume production of vinasse by 50 percent. Vinasse is the coproduct that results from the sugarcane ethanol production process after fermented mash is distilled. In corn ethanol production, this product is distillers grains. Vinasse contains a high concentration of potassium and is used as a fertilizer. Traditionally, the sugarcane ethanol production process creates approximately 10 to 12 liters (2.6 to 3.2 gallons) of vinasse for every 1 liter (0.26 gallons) of ethanol produced. A more concentrated vinasse coproduct is beneficial because it costs less to pump, transport and apply to fields.