TY - JOUR
T1 - Basic oxygen furnace slag as a support material for the cultivation of indigenous marine microalgae
AU - Chen, Chun Yen
AU - Zhuang, Kai Wei
AU - Chang, Yu Han
AU - Nagarajan, Dillirani
AU - Huang, Chieh Chen
AU - Chang, Jo Shu
N1 - Funding Information:
The authors thankfully acknowledge the financial support received from Taiwan’s Ministry of Science and Technology (MOST) under grant number 110-3116-F-006 -003, 110-2221-E-029 -004 -MY3, 110-2621-M-029 -001, 109-2622-E-110 -011, and 107-3113-E-006-001-CC2.
Publisher Copyright:
© 2021
PY - 2021/12
Y1 - 2021/12
N2 - Attached cultivation of microalgae is a suitable strategy for attaining high biomass productivity with effortless harvesting. This study evaluates the feasibility of using Basic Oxygen Furnace Slag (BOFS) as a carrier for microalgae cultivation. Among the three indigenous microalgae (namely, Chlorella sorokiniana PTC13, Tetraselmis suecica SC5, and Nannochloropsis oceanica DG), which were examined for their capability of attached growth on BOFS, T. suecica SC5 showed the best attached-growth performance (2.52 mg/g slag). Optimizing the cultivation parameters (agitation rate, 200 rpm; added sodium acetate, 1 g/L; light intensity, 300 µmol/m2/s) further enhanced the attached biomass yield to 6.38 mg/g slag. The microalgae-attached slag can be used as the seed for re-growth for three additional cycles and the biomass yield and productivity both enhanced from 6.00 to 11.58 mg/g slag and 497 to 760 mg/L/d, respectively. This study demonstrated the potential of using T. suecica SC5-attached BOFS to construct artificial reefs.
AB - Attached cultivation of microalgae is a suitable strategy for attaining high biomass productivity with effortless harvesting. This study evaluates the feasibility of using Basic Oxygen Furnace Slag (BOFS) as a carrier for microalgae cultivation. Among the three indigenous microalgae (namely, Chlorella sorokiniana PTC13, Tetraselmis suecica SC5, and Nannochloropsis oceanica DG), which were examined for their capability of attached growth on BOFS, T. suecica SC5 showed the best attached-growth performance (2.52 mg/g slag). Optimizing the cultivation parameters (agitation rate, 200 rpm; added sodium acetate, 1 g/L; light intensity, 300 µmol/m2/s) further enhanced the attached biomass yield to 6.38 mg/g slag. The microalgae-attached slag can be used as the seed for re-growth for three additional cycles and the biomass yield and productivity both enhanced from 6.00 to 11.58 mg/g slag and 497 to 760 mg/L/d, respectively. This study demonstrated the potential of using T. suecica SC5-attached BOFS to construct artificial reefs.
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U2 - 10.1016/j.biortech.2021.125968
DO - 10.1016/j.biortech.2021.125968
M3 - Article
C2 - 34563825
AN - SCOPUS:85115638516
SN - 0960-8524
VL - 342
JO - Bioresource technology
JF - Bioresource technology
M1 - 125968
ER -