I am never a fan of land-based biofuels because they are worse for the environment than fossil fuels, and I regard algae fuels as problematic due to the difficulty of separating phytoplankton from water. However, this use of algae as a means to treat sewage as well as serve as biofuel is noteworthy because it also serves to remediate an environmental liability. I proposed this in an article I published five years ago where I question the use a switchgrass as a sustainable biofuel. I suggested...
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