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首页> 外文期刊>Renewable energy >Improvement of biohydrogen production by optimization of pretreatment method and substrate to inoculum ratio from microalgal biomass and digested sludge
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Improvement of biohydrogen production by optimization of pretreatment method and substrate to inoculum ratio from microalgal biomass and digested sludge

机译：通过优化预处理方法以及微藻生物质和消化污泥的底物与接种物比率的优化来提高生物氢的生产

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摘要

Biohydrogen from microalgal biomass has shown particular advantage due to its high growth rate and high bioenergy production. As a representative of microalgae, Chlorella vulgaris was chosen as substrate along with digested sludge (DS) as inoculum in this research. In order to improve the hydrolysis of algal biomass and enhance biohydrogen production, pretreatment methods like acid and thermal pretreatment were employed. Thermal pretreatment showed better results than acid pretreatment of microalgal biomass. 100 degrees C for 60 min was identified as the optimum condition for the thermal pretreatment of C vulgaris by response surface methodology (RSM) analysis. Experiments were also carried out to identify the optimum substrate to inoculum ratio (SIR) for the process. SIR of 8 generated the highest hydrogen yield of 190.90 mL H-2/g-VS. Moreover, the overall energy balance of the process was evaluated and the results showed a positive energy balance of 1790.13 kJ/kg. The results indicated that optimization of pretreatment methods and substrate to inoculum ratio was effective in enhancing biohydrogen production from microalgal biomass and digested sludge. (C) 2018 Elsevier Ltd. All rights reserved.
机译：来自微藻生物质的生物氢由于其高生长速率和高生物能产生而显示出特别的优势。作为微藻的代表，在本研究中选择小球藻作为底物以及消化污泥（DS）作为接种物。为了改善藻类生物质的水解并提高生物氢的产生，采用了酸和热预处理等预处理方法。热预处理显示出比酸预处理微藻类生物质更好的结果。通过响应面分析法（RSM）分析，确定100摄氏度60分钟的最佳条件是C寻常热预处理的最佳条件。还进行了实验，以确定该过程的最佳底物与接种物的比例（SIR）。 SIR为8时产生的最高氢产率为190.90 mL H-2 / g-VS。此外，评估了该过程的总体能量平衡，结果显示正能量平衡为1790.13 kJ / kg。结果表明，优化预处理方法和底物与接种物的比例可有效提高微藻生物质和消化污泥的生物产氢量。 （C）2018 Elsevier Ltd.保留所有权利。

著录项

  • 来源
    《Renewable energy》 |2018年第11期|670-677|共8页
  • 作者

    Stanislaus Mishma S.; Zhang Nan; Yuan Yue; Zheng Hanying; Zhao Chenyu; Hu Xiaohong; Zhu Qi; Yang Yingnan;

  • 作者单位

    Univ Tsukuba, Grad Sch Life & Environm Sci, 1-1-1 Tennodai, Tsukuba, Ibaraki 3058572, Japan;

    Univ Tsukuba, Grad Sch Life & Environm Sci, 1-1-1 Tennodai, Tsukuba, Ibaraki 3058572, Japan;

    Univ Tsukuba, Grad Sch Life & Environm Sci, 1-1-1 Tennodai, Tsukuba, Ibaraki 3058572, Japan;

    Univ Tsukuba, Grad Sch Life & Environm Sci, 1-1-1 Tennodai, Tsukuba, Ibaraki 3058572, Japan;

    Univ Tsukuba, Grad Sch Life & Environm Sci, 1-1-1 Tennodai, Tsukuba, Ibaraki 3058572, Japan;

    Univ Tsukuba, Grad Sch Life & Environm Sci, 1-1-1 Tennodai, Tsukuba, Ibaraki 3058572, Japan;

    Univ Tsukuba, Grad Sch Life & Environm Sci, 1-1-1 Tennodai, Tsukuba, Ibaraki 3058572, Japan;

    Univ Tsukuba, Grad Sch Life & Environm Sci, 1-1-1 Tennodai, Tsukuba, Ibaraki 3058572, Japan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Biohydrogen; Chlorella vulgaris; energy balance; Pretreatment;

    机译：生物氢;小球藻;能量平衡;预处理;

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