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Published on: 3/8/2005
Last Visited: 7/8/2006
HSU graduate student and Footprint Recycling founder Andrew Cooper said to manufacture biodiesel they begin by heating waste vegetable oil and filtering it.The heated oil is mixed with lye, which is purchased as white flakes or pellets, and methanol, a colorless and poisonous alcohol, to trigger the chemical separation of refined oil from the glycerine and methanol.
In the process (known as transesterification), lye sets off the chemical reaction that creates the biofuel.After a two-week refining period, biodiesel floats to the top and can be siphoned off while the glycerine sinks to the bottom.Biodiesel's emissions are much lower than diesel or gasoline.Cooper said the oily fluid lubricates motors, is non-toxic and non-flammable, and offers a safe alternative to petroleum.
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The Depot, said food vendors on campus used to recycle the waste oil and fats through a rendering business but changed over to a partnership with Cooper as the local entrepreneur started up.
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Cooper said that by returning the finished product, biodiesel, to the area, it acts as an economic asset and localizes the environmental benefit of cleaner fuel.He said more than 70 percent of the production equipment-such as rusty oil drums-has been picked up from area waste piles and refurbished.
"From scrap yards and farm fields, we have brought in these eyesores of the community," Cooper said.
With his partners Greg Bender and Chad Christensen-Woods, Cooper said the business now serves Humboldt, Del Norte and Trinity counties, as well as new interests in southern Oregon.
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Cooper said the demand for biodiesel far exceeds what Footprint currently supplies, and the pool of available waste oil from restaurants is shrinking with the mounting interest in biofuel.
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Although pure recycled biodiesel will never likely come close to meeting the energy consumption of an entire county, Cooper said it can be blended with basic diesel, resulting in cleaner combustion and reducing the pollutants generated from diesel engines without modifications.He said Footprint will offer two blends in the near future.