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Energy efficient growth control of microalgae using photobiological methods

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  • Jeong, Hakgeun
  • Lee, Junghoon
  • Cha, Misun

Abstract

Microalgae have garnered interest for the production of valuable molecules ranging from therapeutic proteins to biofuels. However, microalgae also are associated with the considerable problem of phytoplankton bloom. In this study, we demonstrated algal growth using Isochrysis galbana as a model can be controlled photobiologically. Long dark period (24-h light: 24-h dark) unlike common photoperiod resulted in biomass loss and slower growth rates, but were unlikely to cause fatal damage. Algal cell growth can be significantly recovered with the onset of light. Also, it was confirmed that blue light-emitting diode (LED) illumination was able to effectively support cell growth of I. galbana as the sole light source. The blue LED intensity with 200% (580 l×, 18.52 μmol m−2 s−1) based on 8000 l× (98.4 μmol m−2 s−1) fluorescent lamp provided the best support for growth of I. galbana. We verified excessive light intensities lead to inhibition of algal growth, whereas low light intensities also did not promote algal growth. Further, I. galbana cell growth can be controlled using blue LED with extremely high LED intensities. These results may provide means to control algal population for either goal of growth or inhibition through proper use of such illumination.

Suggested Citation

  • Jeong, Hakgeun & Lee, Junghoon & Cha, Misun, 2013. "Energy efficient growth control of microalgae using photobiological methods," Renewable Energy, Elsevier, vol. 54(C), pages 161-165.
    • Handle: RePEc:eee:renene:v:54:y:2013:i:c:p:161-165
    DOI: 10.1016/j.renene.2012.08.030
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    Citations

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    Cited by:

    1. Yan, Cheng & Muñoz, Raúl & Zhu, Liandong & Wang, Yanxin, 2016. "The effects of various LED (light emitting diode) lighting strategies on simultaneous biogas upgrading and biogas slurry nutrient reduction by using of microalgae Chlorella sp," Energy, Elsevier, vol. 106(C), pages 554-561.
    2. Liu, Guangmin & Qiao, Lina & Zhang, Hong & Zhao, Dan & Su, Xudong, 2014. "The effects of illumination factors on the growth and HCO3− fixation of microalgae in an experiment culture system," Energy, Elsevier, vol. 78(C), pages 40-47.
    3. Srinuanpan, Sirasit & Cheirsilp, Benjamas & Prasertsan, Poonsuk, 2018. "Effective biogas upgrading and production of biodiesel feedstocks by strategic cultivation of oleaginous microalgae," Energy, Elsevier, vol. 148(C), pages 766-774.
    4. Kurt, Ç. & Ekinci, K. & Uysal, Ö., 2022. "The effect of LEDs on the growth and fatty acid composition of Botryococcus braunii," Renewable Energy, Elsevier, vol. 186(C), pages 66-73.
    5. In-Ho Chang & Dawoon Jung & Tae Seok Ahn, 2014. "Improving the Effectiveness of a Nutrient Removal System Composed of Microalgae and Daphnia by an Artificial Illumination," Sustainability, MDPI, vol. 6(3), pages 1-13, March.
    6. Yuan, Hao & Zhang, Xinru & Jiang, Zeyi & Wang, Xinyu & Wang, Yi & Cao, Limei & Zhang, Xinxin, 2020. "Effect of light spectra on microalgal biofilm: Cell growth, photosynthetic property, and main organic composition," Renewable Energy, Elsevier, vol. 157(C), pages 83-89.
    7. Yan, Cheng & Zhu, Liandong & Wang, Yanxin, 2016. "Photosynthetic CO2 uptake by microalgae for biogas upgrading and simultaneously biogas slurry decontamination by using of microalgae photobioreactor under various light wavelengths, light intensities,," Applied Energy, Elsevier, vol. 178(C), pages 9-18.
    8. Donghan Kang & Keug Tae Kim & Tae-Young Heo & Gyutae Kwon & Chaeseung Lim & Jungsu Park, 2019. "Inhibition of Photosynthetic Activity in Wastewater-Borne Microalgal–Bacterial Consortia under Various Light Conditions," Sustainability, MDPI, vol. 11(10), pages 1-13, May.
    9. Zhang, Yuejin & Bao, Keting & Wang, Juan & Zhao, Yongjun & Hu, Changwei, 2017. "Performance of mixed LED light wavelengths on nutrient removal and biogas upgrading by different microalgal-based treatment technologies," Energy, Elsevier, vol. 130(C), pages 392-401.
    10. Yan, Cheng & Zheng, Zheng, 2014. "Performance of mixed LED light wavelengths on biogas upgrade and biogas fluid removal by microalga Chlorella sp," Applied Energy, Elsevier, vol. 113(C), pages 1008-1014.
    11. Wu, Lan & Wei, Wei & Song, Lan & Woźniak-Karczewska, Marta & Chrzanowski, Łukasz & Ni, Bing-Jie, 2021. "Upgrading biogas produced in anaerobic digestion: Biological removal and bioconversion of CO2 in biogas," Renewable and Sustainable Energy Reviews, Elsevier, vol. 150(C).
    12. Razzak, Shaikh A. & Hossain, Mohammad M. & Lucky, Rahima A. & Bassi, Amarjeet S. & de Lasa, Hugo, 2013. "Integrated CO2 capture, wastewater treatment and biofuel production by microalgae culturing—A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 27(C), pages 622-653.

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