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Origin Oil recently filed for patent protection of the new Attached Growth System, its tenth patent application, entitled “Methods and Apparatus for Growing Algae on a Solid Surface.” OriginOil will integrate the process into the demonstration algae system now being built at its headquarters.
Growing algae in water is a challenge because as it grows, the algae thickens and stops light. One solution is OriginOil’s Helix Bioreactor™ which puts the lights inside the tank. Another method is to rotate the algae periodically out of the water so it can be exposed to the light. OriginOil’s Attached Growth System uses types of algae that will attach to surfaces rotating in and out of the water, exposing the algae to sunlight or artificial light. At harvest time, the algae is scraped off as a sludge, greatly decreasing the energy cost of dewatering during oil extraction.
In wastewater treatment plants, OriginOil’s Attached Growth System can be configured to encourage bacterial growth in addition to the algae. Combining algal and bacterial growth makes for better nutrient extraction than either one of them alone, contributing to clean water goals while making fuel and absorbing CO2.
OriginOil Chief Scientist and clean water veteran Dr. Vikram Pattarkine said: “We demonstrated in our cost analysis, at the National Algae Association in Houston earlier this month, that algae can be far more profitable when located in wastewater treatment environments. This technology will multiply the benefit.”
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