System and Method for Non-Sterile Heterotrophic Algae Growth
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United States of America Patent
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Issued Date -
Aug 9, 2012
app pub date -
Feb 9, 2011
filing date -
Feb 9, 2011
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Abstract
A system and method for non-sterile heterotrophic algae growth is provided. The system includes a first Continuous Stirred Tank Reactor (CSTR), kept under sterile conditions, for mixing a full load nutrient with algae cells to create a culture. After being transferred to a first Plug Flow Reactor (PFR), a nutrient is depleted from the culture to create an effluent. By depleting the nutrient, algae cells are able to grow more rapidly without having to compete with other microbes for available nutrients. Once the effluent is created, it is transferred to a second PFR where organic carbon is added. By adding organic carbon, the algae cells grow intracellular oil rapidly. Algae cells are then removed for processing into biofuel.
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