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  • The growth response of Alternanthera philoxeroides in a simulated postcombustion emission with ultrahigh [CO2] and acidic pollutants

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    Author(s)
    Xu, Cheng-Yuan
    Griffin, Kevin L
    Blazier, John C
    Craig, Elizabeth C
    Gilbert, Dominique S
    Sritrairat, Sanpisa
    Anderson, O Roger
    Castaldi, Marco J
    Beaumont, Larry
    Griffith University Author(s)
    Xu, Chengyuan
    Year published
    2009
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    Abstract
    Although post-combustion emissions from power plants are a major source of air pollution, they contain excess CO2 that could be used to fertilize commercial greenhouses and stimulate plant growth. We addressed the combined effects of ultrahigh [CO2] and acidic pollutants in flue gas on the growth of Alternanthera philoxeroides. When acidic pollutants were excluded, the biomass yield of A. philoxeroides saturated near 2000 mmol mol 1 [CO2] with doubled biomass accumulation relative to the ambient control. The growth enhancement was maintained at 5000 mmol mol 1 [CO2], but declined when [CO2] rose above 1%, in association ...
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    Although post-combustion emissions from power plants are a major source of air pollution, they contain excess CO2 that could be used to fertilize commercial greenhouses and stimulate plant growth. We addressed the combined effects of ultrahigh [CO2] and acidic pollutants in flue gas on the growth of Alternanthera philoxeroides. When acidic pollutants were excluded, the biomass yield of A. philoxeroides saturated near 2000 mmol mol 1 [CO2] with doubled biomass accumulation relative to the ambient control. The growth enhancement was maintained at 5000 mmol mol 1 [CO2], but declined when [CO2] rose above 1%, in association with a strong photosynthetic inhibition. Although acidic components (SO2 and NO2) significantly offset the CO2 enhancement, the aboveground yield increased considerably when the concentration of pollutants was moderate (200 times dilution). Our results indicate that using excess CO2 from the power plant emissions to optimize growth in commercial green house could be viable.
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    Journal Title
    Environmental Pollution
    Volume
    157
    Issue
    7
    DOI
    https://doi.org/10.1016/j.envpol.2009.02.013
    Copyright Statement
    © 2011 Elsevier. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
    Publication URI
    http://hdl.handle.net/10072/44229
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