An integrated wavelength-shifting strategy for enhancement of microalgal growth rate in PMMA- and polycarbonate-based photobioreactors

被引:24
作者
Amrei, Hossein Delavari [1 ]
Nasernejad, Bahram [1 ]
Ranjbar, Reza [1 ,2 ]
Rastegar, Saeid [3 ]
机构
[1] Amirkabir Univ Technol, Dept Chem Engn, Tehran, Iran
[2] Algaebiotech BV, NL-1382 GS Weesp, Netherlands
[3] Amirkabir Univ Technol, Dept Polymer Engn & Color Technol, Tehran, Iran
关键词
biomass productivity; fluorescent dye; microalgae; photosynthetically active radiation; UV-A; LIGHT-EMITTING-DIODES; EICOSAPENTAENOIC ACID PRODUCTION; SOLAR-CELL EFFICIENCY; UV-A; HAEMATOCOCCUS-PLUVIALIS; FLASHING LIGHT; PHOTOSYNTHETIC ACTIVITY; ASTAXANTHIN PRODUCTION; SPIRULINA-PLATENSIS; SPECTRAL CONVERSION;
D O I
10.1080/09670262.2014.919030
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
This study investigates the spectral shifting of UV-A radiation, using fluorescent material, as a tool for enhancing Chlorella sp. growth rate in simulated photobioreactors made of UV-stabilized polycarbonate (PC) and poly (methyl methacrylate) (PMMA). The feasibility of using a fluorescent coating as a wavelength shifter layer, to shift UV-A radiation to the PAR range, was explored. For this purpose, a variety of concentrations of fluorescent dye dissolved in thermoplastic acrylic resin were prepared and used to coat PMMA and PC sheets which then were placed between the radiation source and the culture flask. Compared with the uncoated sheets, the panels coated with the wavelength shifter layer exhibited 74% and 45% (for PC and PMMA substrates, respectively) increase in biomass productivity during the same culture period. It was also found that the elimination of UV-A radiation increased chlorophyll a content of the cells.
引用
收藏
页码:324 / 331
页数:8
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