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水草のメタン発酵特性に与える細胞壁成分の影響とメタン生成予測モデルの構築
http://hdl.handle.net/10911/00040742
http://hdl.handle.net/10911/00040742b6d38f8b-dff5-4408-88b5-0dee28ba2771
| 名前 / ファイル | ライセンス | アクション |
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kogakukenkyuka_FUJIWARA-Masaaki(sinsa).pdf (2.7 MB)
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kogakukenkyuka_FUJIWARA-Masaaki(yosi).pdf (481.1 kB)
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kogakukenkyuka_FUJIWARA-Masaaki(zen).pdf (4.5 MB)
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| Item type | 学位論文 / Thesis or Dissertation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2022-03-30 | |||||
| タイトル | ||||||
| タイトル | 水草のメタン発酵特性に与える細胞壁成分の影響とメタン生成予測モデルの構築 | |||||
| 言語 | ja | |||||
| タイトル | ||||||
| タイトル | Effect of lignocellulosic components on the anaerobic digestibility of aquatic weeds and development of a predictive model of methane production | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Aquatic weed | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | anaerobic digestion | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | lignocellulose | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | modified Gompertz model | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | ADM1 | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_db06 | |||||
| 資源タイプ | doctoral thesis | |||||
| アクセス権 | ||||||
| アクセス権 | open access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
| 著者 |
藤原, 正明
× 藤原, 正明× Masaaki, FUJIWARA |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Although the anaerobic digestion of aquatic weeds has been attempted all over the world, few studies focus on the relationship between anaerobic digestibility and chemical compositions. The biomass harvested from waterbody has variety of aquatic weeds species, and species composition and chemical composition in each species might vary with the change of season. In this doctoral thesis, development of the estimation method of annual methane productivity from seasonality of the chemical composition and species composition of harvested aquatic weeds was performed as follows: seasonal changes of the chemical compositions and estimation of monthly methane potential of harvested aquatic weeds from lake Biwa (Study 1), correlation analysis between chemical composition and anaerobic digestibility calculated by fitting to modified Gompertz model (Study 2). In study 1, among three species harvested in monthly from Spring to Fall, chemical composition was changed seasonally in two species, but another species did not change, indicating that life cycle of aquatic weeds affects the seasonality of the chemical composition. On the other hand, although methane yield were significantly varied, the difference was larger in each species: thus, methane potential of harvested aquatic weeds can be mainly determined depending on the species compositions. Estimation of monthly methane potential of aquatic weeds harvested from Lake Biwa was low in autumn to spring seasons (171?186 mL g-VS?1) due to the predominance of P. maackianus. In study 2, significant correlations were obtained between cellulose/lignin and ultimate methane yield, cellulose/hemicellulose and maximum methane production rate, and hemicellulose content and T80, respectively. From the equations explaining each kinetic parameters and annual estimated chemical compositions of harvested aquatic weeds, anaerobic digestibility was estimated. In Study 3, ADM1 was developed and simulated for the aquatic weeds biomass, incorporating these relationships. As a result, the ADM1 was able to estimate the methane production of water plant biomass with high accuracy. In the general discussion, the operational stability of the continuous treatment was estimated by the model and discussed for the social implementation of this treatment. | |||||
| 学位名 | ||||||
| 学位名 | 博士（工学） | |||||
| 学位授与機関 | ||||||
| 学位授与機関名 | 創価大学 | |||||
| 学位授与年月日 | ||||||
| 学位授与年月日 | 2022-03-18 | |||||
| 学位授与番号 | ||||||
| 学位授与番号 | 甲第191号 | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
