Environmental impacts of absorption-based CO2 capture unit for post-combustion treatment of flue gas from coal-fired power plant |
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Affiliation: | 1. Federation University Australia, Churchill, VIC, Australia;2. ION Engineering, Boulder, Colorado, United States |
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Abstract: | This study assesses potential environmental impacts of the absorption-based carbon dioxide (CO2) capture unit that is integrated to coal-fired power plant for post-combustion treatment of flue gas. The assessment was performed by identifying potential pollutants and their sources as well as amounts of emissions from the CO2 capture unit and also by reviewing toxicology, potential implications to human health and the environment, as well as the environmental laws and regulations associated with such pollutants. The assessment shows that, while offering a significant environmental benefit through a reduction of greenhouse gas emissions, the installation of CO2 capture units for post-combustion treatment might induce unintentional and potential burdens to human health and the environment through four emission pathways, including treated gas, process wastes, fugitive emissions, and accidental releases. Such burdens nevertheless can be predetermined and properly mitigated through a well-established environmental management program and mitigation measures. Recommendations to minimize these impacts are provided in this paper. |
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