Method for Growing Microalgae from Wastewater for Oil Production
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United States of America Patent
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Issued Date -
Mar 14, 2013
app pub date -
Sep 8, 2011
filing date -
Sep 8, 2011
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Abstract
A method is provided for growing microalgae from wastewater for oil production in a three-step wastewater treatment facility. In the method, two carbon sources are selected for addition to the wastewater, which contains naturally-occurring bacteria. Specifically, the first carbon source is selected to increase the carbon-to-nitrogen ratio and the carbon-to-phosphorous ratio within the microalgae. The first carbon source serves as a food source for the microalgae, and the second carbon source promotes the breakdown of carbon nitrogen and phosphorous by the bacteria cells into a more easily digestible form for the microalgae. Due to the added carbon, the wastewater supports growth of the microalgae and the production of oils therein.
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