Manure to Water

In this May 21, 2014 photo released by Michigan State University, Jim Wallace and Steven Safferman are shown at a dairy farm where they have helped to convert manure into clean water. A technology for extracting drinkable water from manure is on its way to commercial application this year, Michigan State University said Thursday, May 29, 2014. The McLanahan Nutrient Separation System is an add-on to an anaerobic digester, which extracts energy and chemicals from manure. The system adds ultrafiltration, air stripping and a reverse osmosis system to produce water that’s clean enough for cattle to drink. (AP Photo/Michigan State University, G.L Kohuth)

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