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    题名: Effects of Chlorella sp. on nutrient treatment in cultures with different carbon to nitrogen ratios
    作者: Wu, Hsin-Hui;Gau, Sue-Huai;Li, Ming-Guo;Chen, Yi-Ju;Sun, Chang-Jung
    关键词: biomass;Chlorella sp.;carbon to nitrogen ratio;lipids;wastewater treatment
    日期: 2015/03/03
    上传时间: 2016-04-22 13:15:00 (UTC+8)
    出版者: IWA Publishing
    摘要: Chlorella sp. is often used in the treatment of wastewater to produce lipids, a practice which could
    go beyond wastewater treatment and be used to generate green energy. Our objectives here are to
    explore how the ratio of carbon to nitrogen (C/N) affects the removal of carbon and nitrogen in a
    wastewater treatment system, while simultaneously generating biomass and lipids. In this study, the
    C/N ratio is adjusted to 0.002, 6, 8, 10, 12 and 32. The results indicate that a C/N of 10 is sufficient to
    ensure the consumption of carbon and nitrogen, achieving the lowest concentration in the shortest
    culturing time (32 h). When nitrogen is lacking in the culture, there will be a slight decrease in the rate
    of carbon consumption which leads to a limitation of nitrogen and an increase in the lipid/cell density
    even at 96 h of culture time. The highest lipid content (0.57 g/L) and lipid increase rate (0.4 g/L)
    occurs with a C/N of 32. The greatest amount of biomass, 1.42 g/L is achieved when the C/N is 32.
    The carbon concentration is the main factor affecting the nitrogen consumption and the increase in
    the biomass and lipid content.
    關聯: Water Science & Technology 71(11), pp.1597-1603
    DOI: 10.2166/wst.2015.123
    显示于类别:[水資源及環境工程學系暨研究所] 期刊論文

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