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Can luminescent solar concentrators increase microalgal growth on anaerobically digested food effluent?
Journal article   Peer reviewed

Can luminescent solar concentrators increase microalgal growth on anaerobically digested food effluent?

M. Raeisossadati and N.R. Moheimani
Journal of Applied Phycology, Vol.32, pp.3703-3710
2020
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Abstract

Increasing microalgal biomass productivity and enhancing nutrient removal rates are critical when growing microalgae in wastewater. In most cases, the effluents such as anaerobically digested food effluent (ADFE) are very turbid. Using such effluents as a medium for an algal culture would leave the culture with high turbidity resulting in photo-limitation of the algal culture. Light-diffusing systems can be used to overcome the light limitation in microalgal cultures. In this study, red luminescent solar concentrators were used to shift the sunlight into the desired wavelength and deliver it into the depth of cultures of an outdoor microalgal consortium cultivated in ADFE in paddlewheel-driven raceway ponds. Biomass productivity and specific growth rate of cultures grown using red luminescent solar concentrators (LSCs) were 61% and 59% higher than those in control cultures. The nitrogen assimilation rate of biomass under red LSCs was 1.8-fold higher than that in the control. Further, the lipid content of the cultures under red LSCs (490 mg lipid g−1 biomass) was 30% higher than that of the control. The results of this study showed that using red LSCs can improve microalga growth on ADFE when paddlewheel raceway ponds are used.

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UN Sustainable Development Goals (SDGs)

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#6 Clean Water and Sanitation

Source: InCites

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Citation topics
3 Agriculture, Environment & Ecology
3.171 Photoproductivity
3.171.477 Microalgae Biotechnology
Web Of Science research areas
Biotechnology & Applied Microbiology
Marine & Freshwater Biology
ESI research areas
Plant & Animal Science
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