N2O emission in a partial nitrification system: Dynamic emission characteristics and the ammonium-oxidizing bacteria community

被引：45

作者：

Kong, Qiang ^{[1
]}

Liang, Shuang ^{[1
]}

Zhang, Jian ^{[1
]}

Xie, Huijun ^{[2
]}

Miao, Mingsheng ^{[3
]}

Tian, Lin ^{[3
]}

机构：

[1] Shandong Univ, Sch Environm Sci & Engn, Shandong Prov Key Lab Water Pollut Control & Reso, Jinan 250100, Shandong, Peoples R China

[2] Shandong Univ, Environm Res Inst, Jinan 250100, Shandong, Peoples R China

[3] Shandong Normal Univ, Coll Life Sci, Jinan 250014, Shandong, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2013年 / 127卷

基金：

中国国家自然科学基金;

关键词：

Nitrous oxide; Partial nitrification; Emission characteristics; Ammonium oxidizing bacteria community; NITROUS-OXIDE EMISSION; REJECT WATER-TREATMENT; WASTE-WATER; NITRITE ACCUMULATION; REACTOR; ANAMMOX; SCALE; OXIDATION; PERFORMANCE;

D O I：

10.1016/j.biortech.2012.10.011

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

This study attempts to elucidate the dynamics of nitrous oxide (N2O) emission and investigate the evolution of the ammonium-oxidizing bacteria (AOB) community in a partial nitrification system producing an influent suitable for the anammox process. Based on long-term monitoring, (0.80 +/- 0.19, n = 7)% of the incoming nitrogen load was emitted as N2O. During the partial nitrification process, the N2O emission rate reached a maximum at the beginning of the aerobic period and stabilized at a low level after an initial peak. Moreover, the quantity of N2O emission increased quickly at the beginning of the cycle operation and then production slowed after 30 mm. According to polymerase chain reaction (PCR) and denaturing gradient gel electrophoresis (DGGE) analysis, the dominant AOB causing the N2O emission from the partial nitrification system were Nitrosomonas sp. Both Nitrosomonas sp. Nm33 and Nitrosomonas sp. Nm58 were enriched at high ammonia concentrations. (c) 2012 Elsevier Ltd. All rights reserved.

引用

页码：400 / 406

页数：7