期刊
BIORESOURCE TECHNOLOGY
卷 179, 期 -, 页码 473-482出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2014.12.075
关键词
Microalgae; Light filters; Flask culture; Flat panel photobioreactors; Rotating algal biofilm (RAB)
资金
- NSF SBIR
- Iowa Regents Innovation Fund
- Office Of The Director
- EPSCoR [1101284] Funding Source: National Science Foundation
This work is to use thin film nano-materials as light filters to selectively transmit certain wavelengths from natural sunlight to algal culture. A red light filter (620-710 nm) and blue filter (450-495 nm) were evaluated. Algae were grown in flasks, flat panel reactors, and rotating algal biofilm (RAB) system. It was found that the light filters did not improve algal growth in flask cultures, probably due to the additional reflection of light by the glass wall of the flasks. However, the light filters significantly (P < 0.05) improved biomass yield (13-34%) in flat panel reactors and biomass productivity (70-100%) in RAB system, depending on the growth mode and lighter filters. Such improvements may be due to the eliminating the ultra-violet (UV) damaging the cellular structure. The biomass compositions did not change significantly among different light-filter cultures (P > 0.05). The research shows a great potential of using light filters to improve microalgal growth. (C) 2014 Elsevier Ltd. All rights reserved.
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