Distribution and genetic diversity of functional microorganisms in different CANON reactors

被引：24
作者：
Liu, Tao [1 ]
Li, Dong [2 ]
Zeng, Huiping [2 ]
Li, Xiangkun [1 ]
Liang, Yuhai [2 ]
Chang, Xiaoyan [2 ]
Zhang, Jie [1 ,2 ]
机构：
[1] Harbin Inst Technol, State Key Lab Urban Water Resource & Environm, Harbin 150090, Peoples R China
[2] Beijing Univ Technol, Key Lab Water Qual Sci & Water Environm Recovery, Beijing 100124, Peoples R China
来源：
BIORESOURCE TECHNOLOGY | 2012年 / 123卷
关键词：
CANON; Distribution; Diversity; PCR-DGGE; FISH; AUTOTROPHIC NITROGEN-REMOVAL; 16S RIBOSOMAL-RNA; GRADIENT GEL-ELECTROPHORESIS; AMMONIA-OXIDIZING BACTERIA; SEWAGE-TREATMENT PLANTS; RICH WASTE-WATER; PARTIAL NITRIFICATION; MICROBIAL-POPULATIONS; NITRIFYING BACTERIA; NITRITE OXIDATION;
D O I：
10.1016/j.biortech.2012.07.114
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
Completely autotrophic nitrogen removal over nitrite (CANON) has been regarded as an efficient and economical process for nitrogen removal from wastewater. The distribution and genetic diversity of the functional microorganisms in five lab-scale CANON reactors have been investigated by using some molecular biology methods. Nitrosomonas-like aerobic ammonium oxidizing bacteria (AerAOB) and Candidatus Brocadia-related anaerobic ammonium oxidizing bacteria (AnAOB) were detected as predominant functional microbes in the five reactors while Nitrobacter-like nitrite oxidizing bacteria (NOB) existed only in the systems operated at ambient temperature. Communities of AerAOB and AerAOB were almost similar among the five reactors while the distribution of the functional microbes was either scattered or densely packed. Meanwhile, this study has demonstrated the feasibility of starting up CANON by inoculating conventional activated sludge in low ammonium content at ambient temperature. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：574 / 580
页数：7
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