https://scholars.lib.ntu.edu.tw/handle/123456789/408244
標題: | Cultivation of Chlorella vulgaris on wastewater containing high levels of ammonia for biodiesel production | 作者: | He P.J. Mao B. Shen C.M. Shao L.M. Lee D.J. Chang J.S. |
關鍵字: | Ammonia;Biodiesel production;Chlorella vulgaris;Fatty acids;Wastewater treatment | 公開日期: | 2013 | 卷: | 129 | 起(迄)頁: | 177-181 | 來源出版物: | Bioresource Technology | 摘要: | The feasibility of cultivating Chlorella vulgaris with wastewater containing high ammonia nitrogen concentrations was examined. The average specific growth rate of C. vulgaris was 0.92d-1 at 17mgL-1 NH4 +-N, but declined to 0.33d-1 at NH4 +-N concentrations of 39-143mgL-1. At 39mgL-1 NH4 +-N, lipid productivity reached a maximum value (23.3mgL-1d-1) and dropped sharply at higher NH4 +-N levels, which demonstrated NH4 +-N should be controlled for biodiesel production. C16 and C18 fatty acids accounted for 80% of total fatty acids. Increasing NH4 +-N from 17 to 207mgL-1 yielded additional short-chain and saturated fatty acids. Protein content was in positive correlation with NH4 +-N content from 17mgL-1 (12%) to 207mgL-1 (42%). Carbohydrate in the dried algae cell was in the range of 14-45%, with a peak value occurring at 143mgL-1 NH4 +-N. The results demonstrate that product quality can be manipulated by NH4 +-N concentrations of the initial feeds. ? 2012 Elsevier Ltd. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/408244 | ISSN: | 09608524 | DOI: | 10.1016/j.biortech.2012.10.162 |
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。