Canadians tap algae to clean Alberta oil sands
CARS, Carbon Algae Recycling System, is a project that plans to use CO2 to grow algae that can clean toxins and make fuels.
Canadian researchers hope algae offers them "la grande solution" to greenhouse gas emissions and the environmental havoc caused by oil extraction in the Alberta tar sands.
The idea is to grow algae next to a source of carbon dioxide, like a power plant. A number ofplan to or are exactly that to "feed" their algae the CO2 they need to grow.
Algae can be used for toxic cleanup as well, researchers tell clean-tech reporter Tyler Hamilton.
The plan is to grow the algae on toxic tailing ponds that have attracted much scrutiny in the oil sands. The algae doesn't just consume CO2, they also love some heavy metals, nitrogen, and residual hydrocarbons. If the approach could be made to work--including the required management of algae growth, handling, and harvesting--the algae could be used to produce biofuels and a number of other products as they suck up CO2 and clean up other chemicals.
"Industry is incredibly interested in this, because they can see it has a potential to take a cost burden out of the equation and turn it into a revenue-generating device, which is huge," says John McDougall, CEO of the Alberta Research Council, adding that he sees a new industry spawning from this research. "I'm really quite excited about this. There aren't that many things that have the right buttons on them, but this one seems to have them."
Bioremediation may become something big in the agricultural business. I profiled a company called Bionvitas, which expects that the near-term business opportunity for its algae bioreactors will be for . Later it intends to make biodiesel.
While algae does have a lot of promise as a valuable fuel crop, it still remains experimental.