An efficient Photobioreactors/Raceway circulating system combined with alkaline-CO2 capturing medium for microalgal cultivation

Chiu Mei Kuo, Jhong Fu Jian, Yu Ling Sun, Tsung Hsien Lin, Yi Chun Yang, Wen Xin Zhang, Hui Fang Chang, Jinn Tsyy Lai, Jo-Shu Chang, Chih Sheng Lin

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

High efficiency of microalgal growth and CO2 fixation in a Photobioreactors (PBRs)/Raceway circulating (PsRC) system combined with alkaline-CO2 capturing medium and operation was established and investigated. Compared with a pH 6 medium, the average biomass productivity of Chlorella sp. AT1 cultured in a pH 11 medium at 2 L min−1 circulation rate for 7 days increased by about 2-fold to 0.346 g L−1 d−1. The maximum amount of CO2 fixation and CO2 utilization efficiency of Chlorella sp. AT1 could be obtained at a PBRs to Raceway ratio of 1:10 in an indoor-simulated PsRC system. A similar result was also shown in an outdoor PsRC system with a 10-ton scale for microalgal cultivation. Under the appropriate circulation rate, the stable growth performance of Chlorella sp. AT1 cultured by long-term semi-continuous operation in the 10-ton outdoor PsRC system was observed, and the total amount of CO2 fixation was approximately 1.2 kg d−1 with 50% CO2 utilization efficiency.

Original languageEnglish
Pages (from-to)398-406
Number of pages9
JournalBioresource Technology
Volume266
DOIs
Publication statusPublished - 2018 Oct 1

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Photobioreactors
fixation
Biomass
Productivity
fold
productivity
biomass
rate

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

Cite this

Kuo, Chiu Mei ; Jian, Jhong Fu ; Sun, Yu Ling ; Lin, Tsung Hsien ; Yang, Yi Chun ; Zhang, Wen Xin ; Chang, Hui Fang ; Lai, Jinn Tsyy ; Chang, Jo-Shu ; Lin, Chih Sheng. / An efficient Photobioreactors/Raceway circulating system combined with alkaline-CO2 capturing medium for microalgal cultivation. In: Bioresource Technology. 2018 ; Vol. 266. pp. 398-406.
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An efficient Photobioreactors/Raceway circulating system combined with alkaline-CO2 capturing medium for microalgal cultivation. / Kuo, Chiu Mei; Jian, Jhong Fu; Sun, Yu Ling; Lin, Tsung Hsien; Yang, Yi Chun; Zhang, Wen Xin; Chang, Hui Fang; Lai, Jinn Tsyy; Chang, Jo-Shu; Lin, Chih Sheng.

In: Bioresource Technology, Vol. 266, 01.10.2018, p. 398-406.

Research output: Contribution to journalArticle

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AU - Jian, Jhong Fu

AU - Sun, Yu Ling

AU - Lin, Tsung Hsien

AU - Yang, Yi Chun

AU - Zhang, Wen Xin

AU - Chang, Hui Fang

AU - Lai, Jinn Tsyy

AU - Chang, Jo-Shu

AU - Lin, Chih Sheng

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N2 - High efficiency of microalgal growth and CO2 fixation in a Photobioreactors (PBRs)/Raceway circulating (PsRC) system combined with alkaline-CO2 capturing medium and operation was established and investigated. Compared with a pH 6 medium, the average biomass productivity of Chlorella sp. AT1 cultured in a pH 11 medium at 2 L min−1 circulation rate for 7 days increased by about 2-fold to 0.346 g L−1 d−1. The maximum amount of CO2 fixation and CO2 utilization efficiency of Chlorella sp. AT1 could be obtained at a PBRs to Raceway ratio of 1:10 in an indoor-simulated PsRC system. A similar result was also shown in an outdoor PsRC system with a 10-ton scale for microalgal cultivation. Under the appropriate circulation rate, the stable growth performance of Chlorella sp. AT1 cultured by long-term semi-continuous operation in the 10-ton outdoor PsRC system was observed, and the total amount of CO2 fixation was approximately 1.2 kg d−1 with 50% CO2 utilization efficiency.

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