Abstract
The focus of this study is the enhancement of microalgae growth rate using spectral conversion of green light. For this purpose, three reactors were considered and fluorescent pigment Rhodamine 6G was dissolved in a thermoplastic acrylic resin, the mixture was then applied on the front side of the first reactor, and on a mirror located at the rear side of the second one. Comparing their maximum specific growth rate (μ max) of Chlorella sp. to that in the third (uncoated) reactor, the former resulted in an increase up to 15% while the latter in decrease to at least 30%. Also, the rear side coated reactor showed up to 50% increase in biomass productivity rate (P) in early 4 days of experiment. However, this value decreased over time and the uncoated reactor in 12 days exhibited higher biomass productivity rate.
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