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Kinetic model for effects of simulated flue gas onto growth profiles of Chlorella sp. AE10 and Chlorella sp. Cv
Author(s) -
Cheng Dujia,
Li Xuyang,
Yuan Yizhong,
Zhao Quanyu
Publication year - 2019
Publication title -
biotechnology and applied biochemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.468
H-Index - 70
eISSN - 1470-8744
pISSN - 0885-4513
DOI - 10.1002/bab.1829
Subject(s) - chlorella , flue gas , photosynthesis , carbon fixation , algae , botany , biomass (ecology) , chemistry , biology , ecology , organic chemistry
Microalgae are potential candidate for biofuel production as alternative one for fossil fuels. CO 2 in flue gas is available carbon source to support microalgae growth. In this study, the effects of different concentrations of the simulated flue gas onto algal growth and photosynthetic activity were evaluated for both Chlorella sp. AE10 and Chlorella sp. Cv. The growth profiles were correlated by a simple kinetic model. It was indicated that the simulated flue gas led to low pH and the photosynthetic activity was partially destroyed. Chlorella sp. Cv can tolerate full simulated flue gas, 10% CO 2 + 200 ppm NO x + 100 ppm SO x . The pH in medium maintained at 6 and the photosynthetic activity was more than 0.6 at the first 6 days. If the concentration of NO x was more 100 ppm and that of SO x was more than 50 ppm, the pH was declined to 4 at day 2 or 3 for Chlorella sp. AE10. At the same time, the related photosynthetic activities of Chlorella sp. AE10 were less than 0.4, which was not suitable for algal growth. It was shown that Chlorella sp. Cv could be used for CO 2 fixation from the simulated flue gas.