https://scholars.lib.ntu.edu.tw/handle/123456789/408227
標題: | Thermophilic digestion of waste-activated sludge coupled with solar pond | 作者: | Zhang G. Wu Z. Cheng F. Min Z. Lee D.-J. |
關鍵字: | Anaerobic digestion;Hydrolysis;Solar pond;Waste-activated sludge | 公開日期: | 2016 | 卷: | 98 | 起(迄)頁: | 142-147 | 來源出版物: | Renewable Energy | 摘要: | Thermophilic anaerobic digestion (AD) is an efficient treatment process for waste activated sludge with enhanced hydrolysis and digestion rates. However, the costs associated with maintaining high temperature for thermophilic digester should be minimized and the thermal stability of the reactor should be maximized for its practical use. This study tested an integrated system consisting of a solar pond and an AD reactor for digestion of waste activated sludge. The integrated system could be stably operated at 51.6?¡Ó?1.5?¢XC in sunny days (and nights) and maintained digestion performance over at least three days with cloud and rain. On the contrary, the control reactor without solar pond experienced significant temperature fluctuation and poor digestion performance. After 29d, the integrated system thermophilic reactor removed 65.0?¡Ó?4.2% of total chemical oxygen demands and produced 79% excess biogas. The concentrations of soluble chemical oxygen demand, protein and saccharides in digester with solar pond were higher than those in that without the pond. Also, the presence of solar pond enhanced hydrolysis and degradation of soluble microbial byproduct-like compounds with carboxylic groups and amide-2 groups in sludge. ? 2016 Elsevier Ltd |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/408227 | ISSN: | 09601481 | DOI: | 10.1016/j.renene.2016.03.052 |
顯示於: | 化學工程學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。