! ! .. :D , .. - , .. , .. .. , .. , :D !!
.. , :D ( ), () ! :D ! , ... :D 8\9, .. - " ? , - " :D :D , ))
" Coffee Grounds - Promising Energy Resource for the Future
Whats usually considered old garbage might be a promising asset for our energy supply, according to University of Cincinnati researchers.
For many of us, it's the fuel that wakes us up and gets us started on our day. Now, University of Cincinnati researchers are discovering that an ingredient in our old coffee grounds might someday serve as a cheaper, cleaner fuel for our cars and other energy sources.
Yang Liu, a graduate student in environmental engineering in UC's College of Engineering and Applied Science (CEAS), presented a summary of early-but-promising discoveries on his team's research at the American Chemical Society's (ACS) 246th National Meeting & Exposition in Indianapolis.
They used a three-pronged approach to converting waste coffee grounds into energy sources including biodiesel and activated carbon by:
Extracting oil from the waste.
Drying the waste coffee grounds after oil removal to filter impurities in biodiesel production.
Burning what was left as an alternative energy source for electricity, similar to using biomass.
The researchers launched the project in 2010, gathering waste coffee grounds in a five-gallon bucket from a Starbucks store on UC's campus. After collection, they removed the oil from the waste coffee grounds and converted triglycerides (oil) into biodiesel and the byproduct, glycerin. The coffee grounds were then dried and used to purify the biodiesel they derived from the waste coffee grounds.
The preliminary results showed that the oil content in the waste coffee grounds was between 8-19 percent, and biodiesel made from coffee oil meets the ASTM International D6751 standard. Researchers report that results still indicate a promising alternative. "
, )))
.. , :D ( ), () ! :D ! , ... :D 8\9, .. - " ? , - " :D :D , )) 
