https://scholars.lib.ntu.edu.tw/handle/123456789/408240
標題: | Freezing of aerobic granules for storage and subsequent recovery | 作者: | Lv Y. Wan C. Liu X. Zhang Y. Lee D.-J. Tay J.-H. |
關鍵字: | Freezing and thawing;Microbial community;Re-cultivation;Structural stability | 公開日期: | 2013 | 卷: | 44 | 期: | 5 | 起(迄)頁: | 770-773 | 來源出版物: | Journal of the Taiwan Institute of Chemical Engineers | 摘要: | Aerobic granules stored in liquid medium can lose structural integrity during storage. Freezing and thawing is applied for disintegrating and then compacting sludge flocs into pellets. This study stored aerobic granules cultivated by seeding activated sludge into column-type sequential batch reactors and fed with synthetic wastewater at organic loading rate of 1.5kg/(m3d) at -20¢XC for 40 days, and then thawed and recovered the frozen granules in 1 day. The present granules have a resilient granule matrix that can resist engulfing of freezing front in freezing. The microbial communities of the frozen and re-cultivated granules were probed using polymerase chain reaction-denaturing gradient gel electrophoresis technique. The family Xanthomonadaceae and the genus Comamonas can survive during freezing and thawing and could contribute to maintain structural integrity in re-cultivation stage. ? 2013 Taiwan Institute of Chemical Engineers. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/408240 | ISSN: | 18761070 | DOI: | 10.1016/j.jtice.2013.01.012 |
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。