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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/82719

    Title: 使用兩階段厭氧發酵處理農業廢棄物產生沼氣及其最適化操作;Optimization of two-stage anaerobic digestion process for biogas to treat agricultural waste
    Authors: 郭木鐸;Guo, Mu-Duo
    Contributors: 化學工程與材料工程學系
    Keywords: 厭氧發酵;甲烷;農業廢棄物
    Date: 2020-01-15
    Issue Date: 2020-06-05 17:03:51 (UTC+8)
    Publisher: 國立中央大學
    Abstract: 能源問題是人類在本世紀面臨的重要議題之一。人們亟需尋求綠色可再生能源來滿足巨額的能源消耗,並且擺脫對於化石燃料的依賴。厭氧發酵技術可以利用微生物將農業廢棄物轉化為沼氣,這使得其不單具有經濟價值,更有環保方面的效用,將農業廢棄物轉化為甲烷既能得到清潔環保的可燃氣體,又可以解決原有的廢棄物處理問題,因此目前世界各國都在積極發展厭氧發酵技術。
    The energy issue is one of the important topics in this century. With the growing demand for energy, there is an urgent need to develop clean, renewable energy to get rid of dependence on fossil fuels. Anaerobic fermentation technology converts agricultural waste into biomethane, and at the same time generates clean and environmentally friendly biogas and solves the problem of waste disposal. Therefore, countries around the world actively developing anaerobic fermentation technology.
    Most of the anaerobic fermentation plants in Taiwan use a single-stage anaerobic fermentation reaction, that is, the entire anaerobic fermentation process is performed simultaneously in one reactor. But the anaerobic fermentation actually has multiple steps and is completed by the different microorganism. If the microorganisms used for acidogenic hydrolysis are separated from the microorganisms used for methanogenesis, there will be an opportunity to find their respective optimized operating parameters. If volatile fatty acid-producing microorganisms are separated from methanogens, the respective optimized operating parameters will be found. This study uses a two-stage operation for anaerobic fermentation and optimizes it for higher yields. When the first stage temperature is 35 degrees, the second stage temperature is 50 degrees, and the carbon-nitrogen ratio is 10, the methane production is the best, reaching 84 (ml) of methane gas per gram of volatile solids.
    Appears in Collections:[化學工程與材料工程研究所] 博碩士論文

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