Definition of FEN. : low land that is covered wholly or partly with water unless artificially drained and that usually has peaty alkaline soil and characteristic flora (as of sedges and reeds).
The average American family uses more than 300 gallons of. water per day at home. Roughly 70 percent of this use occurs. indoors. In addition, there are other miscellaneous uses of water in the house which may be very significant, depending on the. degree of water conservation by the household.
Ethanol production facilities have improved their water efficiency over time. They currently use approximately three gallons of water to produce a gallon of ethanol. This is down from 5.8 gallons of water: 1 gallon of ethanol in 1998 and 4.2 gallons of water: 1 gallon of ethanol in 20052. Experts predict that emerging technologies and improved processes will reduce water usage to two gallons within a short timeframe.