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Coupling Carbon Capture from a Power Plant with Semi-automated Open Raceway Ponds for Microalgae Cultivation
Published on: August 14, 2020
Utilization of the cyanobacteria Anabaena sp. CH1 in biological carbon dioxide mitigation processes
Chang-Ling Chiang1, Chi-Mei Lee, Pei-Chung Chen
1Department of Environmental Engineering, National Chung Hsing University, 250, Kuo-Kuang Road, Taichung 402, Taiwan. aquacharlin@hotmail.com
Abstract:
Before switching totally to alternative fuel stage, CO(2) mitigation process has considered a transitional strategy for combustion of fossil fuels inevitably. In comparison to other CO(2) mitigation options, such as oceanic or geologic injection, the biological photosynthetic process would present a far superior and sustainable solution under both environmental and social considerations. The utilization of the cyanobacteria Anabaena sp. CH1 in carbon dioxide mitigation processes is analyzed in our research. It was found that an original developed photobioreactor with internal light source exhibits high light utilization. Anabaena sp. CH1 demonstrates excellent CO(2) tolerance even at 15% CO(2) level. This enables flue gas from power plant to be directly introduced to Anabaena sp. CH1 culture. Double light intensity and increased 47% CO(2) bubble retention time could enhance CO(2) removal efficiencies by 79% and 67%, respectively. A maximum CO(2) fixation rate of 1.01 g CO(2)L(-1)day(-1) was measured experimentally.
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