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Transformation and characterisation of dissolved organic matter during the thermophilic aerobic biodegradation of faeces

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タイトル: Transformation and characterisation of dissolved organic matter during the thermophilic aerobic biodegradation of faeces
著者: Narita, Hiroki 著作を一覧する
Zavala, Miguel Angel Lopez 著作を一覧する
Iwai, Kaori 著作を一覧する
Ito, Ryusei 著作を一覧する
Funamizu, Naoyuki 著作を一覧する
キーワード: Aerobic biodegradation of faeces
Bio-toilet
Compost stabilisation
Dissolved organic matter
KDO
LPS
発行日: 2005年11月
出版者: Elsevier
誌名: Water Research
巻: 39
号: 19
開始ページ: 4693
終了ページ: 4704
出版社 DOI: 10.1016/j.watres.2005.09.022
抄録: We conducted a comparison of the characteristics of dissolved organic matter (DOM) taken from the bio-toilet and other sources. A characterisation of DOM was carried out to assess the stability of the compost generated during the thermophilic and aerobic biodegradation of faeces. In addition, levels of soluble microbial products generated in the bio-toilet composting reactor were compared with those taken from other sources. The results showed that (i) the main component of DOM from the bio-toilet are solutes with molecular weight (MW)>30,000 Da (40%), whereas micromolecules (MW< 1000 Da) constituted more than 60% of the DOM from other solid samples, while liquid samples reached even more than 90%; (ii) the DOM stabilisation level in the composting reactor of the bio-toilet system was greater than that shown by DOM from other sources; (iii) stabilisation of DOM in the bio-toilet system was characterised by an increasing amount of macromolecules (MW>30,000 Da) after a decreasing trend was observed in the early stages of the biodegradation process; and (iv) net production of lipopolysaccharide (LPS) in wastewater treatment plants is greater than in the bio-toilet.
Relation (URI): http://www.sciencedirect.com/science/journal/00431354
資料タイプ: article (author version)
URI: http://hdl.handle.net/2115/7407
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 船水 尚行

 

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