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While most companies have chosen to focus exclusively on open pond systems, others on PBRs, and a few on fermentation, some companies are seeking to leverage the advantages of each system by using ‘hybrid’ processes that combine two or more of the above methods. These can be small PBRs that inoculate large ponds, larger PBRs used in combination with ponds, or ponds and fermenters used sequentially. The objective of hybrid systems is to maximize the individual advantages of each process. Phycal, an Ohio-based company with operations in Hawaii, uses this type of system.
UCSD’s Dr. Mitchell gives a lesson in algae 101
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