期刊
CHEMOSPHERE
卷 63, 期 6, 页码 926-933出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2005.09.036
关键词
microbial granules; alternating aerobic-anaerobic condition; nitrification; denitrification; microbial activity; external carbon source; PHB
Microbial granules with excellent settleability were successfully developed at different ammonium-N loadings in four sequencing batch reactors run under alternating aerobic-anaerobic conditions. Results showed that heterotrophic, nitrifying and denitrifying populations could co-exist in the microbial granules. The activity of denitrifying bacteria was highly determined by the availability of external carbon source in the anaerobic phase. Complete denitrification was achieved with supply of external carbon source, whereas only partial denitrification occurred with no addition of external carbon source. This study shows that microbial granules cultivated under the alternating aerobic-anaerobic condition could efficiently remove organic carbon and completely convert ammonia to nitrogen gas. A new generation of microbial granules-based bioreactor for organics and nitrogen removal can be envisaged. (c) 2005 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据