http://www.digitaljournal.com/article/280124

Renewable hydrogen production becomes reality at winery

Posted Oct 6, 2009 by Bob Ewing
The Napa Wine Company is conducting the first demonstration of a renewable method for hydrogen production from wastewater using a microbial electrolysis system.
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The system uses a hydrogen generator the size of a standard home refrigerator. The generator takes winery wastewater and converts the organic material into hydrogen with the assistance of bacteria and a tiny amount of electrical energy.
The Penn Sate media release quotes Bruce E. Logan, Kappe Penn State professor of environmental engineering saying, "This is a demonstration to prove we can continuously generate renewable hydrogen and to study the engineering factors affecting the system performance. The hydrogen produced will be vented except for a small amount that will be used in a hydrogen fuel cell."
The company is interested in using the hydrogen to operate vehicles and power systems.
"It is nice that Napa Wine Company offered up their winery and facilities to test this new approach," added Logan.
"We chose a winery because it is a natural tourist attraction. People go there all the time to experience wine making and wine, and now they can also see a demonstration of how to make clean hydrogen gas from agricultural wastes."
"The composition of the wastewater will change throughout the year," said Logan.
"Now it is likely to be rather sugary, but later it may shift more toward the remnants of the fermentation process."
The project is supported by Air Products & Chemicals, Inc., The Water Environmental Research Foundation Paul L. Busch Award and other donors. Brown & Caldwell, an environmental engineering consulting firm, was contracted to build the demonstration plant. The Napa Wine Company is donating its facilities and wastewater for the demonstration.