Posts Tagged ‘algae’

Bio-Diesel from Algae – Good Idea or Bad Dream?

February 11, 2010

Bio-diesel from algae – sounds like a winner! But not so fast —

Researchers from the University of Virginia’s Department of Civil and Environmental Engineering have found there are significant environmental hurdles to overcome before [algae-based] fuel production ramps up …. The U.Va. research, just published in the journal Environmental Science and Technology, demonstrates that algae production consumes more energy, has higher greenhouse gas emissions and uses more water than other biofuel sources, such as switchgrass, canola and corn.

The devil, as they say, is in the details, and the details are far from clear. Using waste water (say sewage treatment plant effluent) may reduce overall water consumption and improve effluent quality. And growing algae in a pond or tank doesn’t coopt farmland that could be used for food crops.

Check the ScienceDaily article for details.

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