https://scholars.lib.ntu.edu.tw/handle/123456789/407959
Title: | Partial nitrification using aerobic granule continuous-flow reactor: Operations and microbial community | Authors: | Wan C. Yang X. Lee D.-J. Liu X. Sun S. |
Keywords: | Aerobic granules;Clone library;Continuous-flow;Partial nitrification;PCR-DGGE | Issue Date: | 2014 | Journal Volume: | 45 | Journal Issue: | 5 | Start page/Pages: | 2681-2687 | Source: | Journal of the Taiwan Institute of Chemical Engineers | Abstract: | Partial nitrification on ammonia laden wastewater using aerobic granule continuous-flow reactors was studied. Effects of temperature and carbon sources on performance of partial nitrification and characteristics of aerobic granules were reported. High nitrite accumulation ratio (>90%) was observed in all reactors after an acclimation phase of 6 days. Decrease in temperature or inorganic carbon concentration limited nitrite accumulation ratio; while nitrite accumulation was hard to recover once complete nitrification to nitrate was established in granules. The aerobic granules collected at continuous-flow reactor were stronger in strength than the seed granules from sequential batch reactor. Clone libraries revealed that Nitrosomonas europaea and Nitrosomonas sp. were the ammonia-oxidizing bacteria (AOB), whereas Nitrobacter sp. and Nitrospira cf. moscoviensis were nitrite-oxidizing bacteria (NOB). Polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) analysis revealed that temperature and carbon sources shifted the microbial community in granules. ? 2014 Taiwan Institute of Chemical Engineers. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/407959 | ISSN: | 18761070 | DOI: | 10.1016/j.jtice.2014.08.009 |
Appears in Collections: | 化學工程學系 |
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