Lipid-extracted microalgal biomass waste for biogas

Microalgae contain substantial amounts of lipids (2–46%), carbohydrates (8–64%) including cellulose and starch, proteins (6–71%), fats and many other valuable compounds. The current obstacle for microalgal biodiesel development lies in its economics, because until now there has been no commercial…

Algae + pig manure = feed + biogas

Sean Murphy writes for ABC News Australia that pig effluent could be used to grow algae or seaweed that is fed back to pigs as part of a closed-loop system for intensive piggeries. Pig manure can also help reduce use of costly fertilizer in the process. Researchers at Murdoch University’s Algae Research and…