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Illinois Renewable Fuels Association

[FAQ] How much water is required to produce one gallon of anhydrous ethanol in a dry grind ethanol plant?

The University of Illinois-Chicago recently completed a survey of the energy use, technologies, and water use at dry mill corn ethanol plants throughout the U.S.  The latest data shows that:

 

  • The average dry mill ethanol plant consumes only 2.72 gallons of water per anhydrous gallon of ethanol produced

 

  • The same plant on average discharges only .46 gallons of water per anhydrous gallon of ethanol

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