Date of Graduation

5-2013

Document Type

Thesis

Degree Name

Bachelor of Science in Chemical Engineering

Degree Level

Undergraduate

Department

Chemical Engineering

Advisor

Beitle, Robert R.

Reader

Lutz-Rechtin, Tammy

Abstract

This study developed and evaluated a novel method to recover the microalgae species Arthrospira platensis from a closed helical photo bioreactor system. A recovery apparatus was designed and shown to increase recovery by 40% via periodic online recovery runs during exponential growth phase of biomass. Considerations for the apparatus design included the low shear tolerance of the algae and the necessity for a closed system in order to monitor CO2 consumption. The recovery method draws on methods used for large scale recovery as reported in literature by Vonshak and Shimmatsu [1], [2]. This work seeks to improve reactor biomass yield for generating sugar extracts from A. platensis which may be used subsequently as a feedstock to generate recombinant proteins from E. coli.

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