连续流反应器污水硝化过程中的N2O释放

吴光学; 王恩革; 邢丽贞; 管运涛

环境工程学报

连续流反应器污水硝化过程中的N2O释放

, , ,

吴光学, 王恩革, 邢丽贞, 管运涛. 连续流反应器污水硝化过程中的N2O释放[J]. 环境工程学报, 2014, 8(3): 1067-1072.

引用本文:

吴光学, 王恩革, 邢丽贞, 管运涛. 连续流反应器污水硝化过程中的N2O释放[J]. 环境工程学报, 2014, 8(3): 1067-1072.

Wu Guangxue, Wang Enge, Xing Lizhen, Guan Yuntao. N2O emission during nitrification in constant flow biological wastewater treatment systems[J]. Chinese Journal of Environmental Engineering, 2014, 8(3): 1067-1072.

Citation:

Wu Guangxue, Wang Enge, Xing Lizhen, Guan Yuntao. N2O emission during nitrification in constant flow biological wastewater treatment systems[J]. Chinese Journal of Environmental Engineering, 2014, 8(3): 1067-1072.

连续流反应器污水硝化过程中的N2O释放

1.
清华大学深圳研究生院深圳市环境微生物利用与安全控制重点实验室, 深圳 518055
2.
山东建筑大学市政与环境工程学院, 济南 250101
基金项目:
深圳市科工贸信委基础研究计划项目（JC201006030878A）
中图分类号: X703

N2O emission during nitrification in constant flow biological wastewater treatment systems

1.
Key Laboratory of Microorganism Application and Risk Control of Shenzhen, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
2.
School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan 250101, China
Fund Project:

摘要: 污水生物脱氮硝化阶段是温室气体一氧化二氮（N2O）的重要释放源。采用连续流反应器在2种进水氨氮（NH4-N，低氮反应器60 mg/L和高氮反应器180 mg/L）浓度条件下驯化硝化菌，并研究了不同初始NH4-N浓度和不同初始亚硝酸盐（NO2-N）浓度条件下所驯化硝化菌释放N2O的特征。结果表明在反应器运行过程中2个反应器释放N2O较少，均小于去除NH4-N浓度的0.01%；N2O的释放均随着初始NH4-N浓度或初始NO2-N浓度的升高而增加；不同初始NH4-N浓度条件下，低氮反应器驯化硝化菌的N2O释放率在0.51%~1.40%之间，高氮反应器驯化硝化菌在0.29%~1.27%之间；不同初始NO2-N浓度条件下，低氮反应器驯化硝化菌的N2O释放率在1.38%~3.78%之间，高氮反应器驯化硝化菌在1.16-5.81%之间。
- 一氧化二氮 /
- 连续流反应器 /
- 硝化 /
- 氨硝化菌 /
- 亚硝酸盐硝化菌
Abstract: Nitrification in biological nitrogen removal from wastewater is a main source of nitrous oxide (N2O). Two constant flow reactors were operated to enrich nitrifiers with two influent ammonium (NH4-N) concentrations of 60 mg/L (low-N-reactor) and 180 mg/L (high-N-reactor), and then effects of different initial NH4-N concentrations and initial nitrite (NO2-N) concentrations on the N2O emission for the acclimated nitrifiers were examined. There was not much N2O emission during the constant operation of the reactors, with the ratio of N2O emission to the removed NH4-N less than 0.01%. N2O emission increased with increasing both initial NH4-N and NO2-N concentrations. At different initial NH4-N concentrations, the ratio of N2O emission to the removed NH4-N was in the range from 0.51% to 1.40% for activated sludge from the low-N-reactor and from 0.29% to 1.27% from the high-N-reactor. At different initial NO2-N concentrations, the ratio of N2O emission to the removed NH4-N was in the range from 1.38% to 3.78% for activated sludge from the low-N-reactor and from 1.16% to 5.81% from the high-N-reactor.
- nitrous oxide /
- constant flow reactor /
- nitrification /
- ammonia oxidizing bacteria /
- nitrite oxidizing bacteria

[1]	IPCC. Climate Change 2001: The Scientific Basis. Cambridge University Press, Cambridge, U.K., 2001
[2]	Khalil M. A. K., Rasmussen R. A. The global sources of nitrous oxide. Journal of Geophysical Research: Atmospheres, 1992, 97(D13): 14651-14660
[3]	Kampschreur M. J., Temmink H., Kleerebezem R., et al. Nitrous oxide emission during wastewater treatment. Water Research, 2009, 43(17): 4093-4103
[4]	刘秀红, 彭永臻, 马涛, 等. 硝化类型对污水脱氮过程中N₂O产生量的影响. 中国环境科学, 2007, 27(5): 633-637 Liu X. H., Peng Y. Z., Ma T., et al. Influence of nitrification type on N₂O production in nitrogen removal treating domestic wastewater. China Environmental Science, 2007, 27(5): 633-637(in Chinese)
[5]	Liu X., Peng Y., Wu C., et al. Nitrous oxide production during nitrogen removal from domestic wastewater in lab-scale sequencing batch reactor. Journal of Environmental Sciences, 2008, 20(6): 641-645
[6]	Wunderlin P., Mohn J., Joss A., et al. Mechanisms of N₂O production in biological wastewater treatment under nitrifying and denitrifying conditions. Water Research, 2012, 46(4): 1027-1037
[7]	Tallec G., Garnier J., Billen G., et al. Nitrous oxide emissions from secondary activated sludge in nitrifying conditions of urban wastewater treatment plants: Effect of oxygenation level. Water Research, 2006, 40(15): 2972-2980
[8]	Zheng H., Hanaki K., Matsuo T. Production of nitrous oxide gas during nitrification of wastewater. Water Science and Technology, 1994, 30(6): 133-141
[9]	Kong Q., Liang S., Zhang J., et al. N₂O emission in a partial nitrification system: Dynamic emission characteristics and the ammonium-oxidizing bacteria community. Bioresource Technology, 2013, 127: 400-406
[10]	Smolders G. J. F., Van der Meij J., Van Loosdrecht M. C. M., et al. Model of the anaerobic metabolism of the biological phosphorus removal process: Stoichiometry and pH influence. Biotechnology and Bioengineering, 1994, 43(6): 461-470
[11]	国家环境保护局. 水和废水监测分析方法(第4版). 北京: 中国环境科学出版社, 2002
[12]	Park K. Y., Lee J. W. Effects of fill modes on N₂O emission from the SBR treating domestic wastewater. Water Science and Technology, 2001, 43(3): 147-150
[13]	Park K. Y., Inamori Y., Mizuochi M., et al. Emission and control of nitrous oxide from a biological wastewater treatment system with intermittent aeration. Journal of Bioscience and Bioengineering, 2000, 90(3): 247-252
[14]	Dytczak M. A., Londry K. L., Oleszkiewicz J. A. Activated sludge operational regime has significant impact on the type of nitrifying community and its nitrification rates. Water Research, 2008, 42(8-9): 2320-2328
[15]	Kampschreur M. J., Tan N. C. G., Kleerebezem R., et al. Effect of dynamic process conditions on nitrogen oxides emission from nitrifying culture. Environmental Science & Technology, 2008, 42(2): 429-435
[16]	Rassamee V., Sattayatewa C., Pagilla K., et al. Effect of oxic and anoxic conditions on nitrous oxide emissions from nitrification and denitrification processes. Biotechnology and Bioengineering, 2011, 108(9):2036-2045
[17]	Kim D. J., Kim Y. Effect of ammonium concentration on the emission of N₂O under oxygen limited autotrophic wastewater nitrification. Journal of Microbiology and Biotechnology, 2011, 21(9): 988-994

点击查看大图

计量

文章访问数: 1615
HTML全文浏览数: 869
PDF下载数: 713
施引文献: 0

吴光学, 王恩革, 邢丽贞, 管运涛. 连续流反应器污水硝化过程中的N2O释放[J]. 环境工程学报, 2014, 8(3): 1067-1072.

引用本文:

吴光学, 王恩革, 邢丽贞, 管运涛. 连续流反应器污水硝化过程中的N2O释放[J]. 环境工程学报, 2014, 8(3): 1067-1072.

Citation:

连续流反应器污水硝化过程中的N2O释放

1. 清华大学深圳研究生院深圳市环境微生物利用与安全控制重点实验室, 深圳 518055
2. 山东建筑大学市政与环境工程学院, 济南 250101

收稿日期: 2013-03-17

基金项目:

深圳市科工贸信委基础研究计划项目（JC201006030878A）

关键词:

摘要: 污水生物脱氮硝化阶段是温室气体一氧化二氮（N2O）的重要释放源。采用连续流反应器在2种进水氨氮（NH4-N，低氮反应器60 mg/L和高氮反应器180 mg/L）浓度条件下驯化硝化菌，并研究了不同初始NH4-N浓度和不同初始亚硝酸盐（NO2-N）浓度条件下所驯化硝化菌释放N2O的特征。结果表明在反应器运行过程中2个反应器释放N2O较少，均小于去除NH4-N浓度的0.01%；N2O的释放均随着初始NH4-N浓度或初始NO2-N浓度的升高而增加；不同初始NH4-N浓度条件下，低氮反应器驯化硝化菌的N2O释放率在0.51%~1.40%之间，高氮反应器驯化硝化菌在0.29%~1.27%之间；不同初始NO2-N浓度条件下，低氮反应器驯化硝化菌的N2O释放率在1.38%~3.78%之间，高氮反应器驯化硝化菌在1.16-5.81%之间。

English Abstract

N2O emission during nitrification in constant flow biological wastewater treatment systems

1. Key Laboratory of Microorganism Application and Risk Control of Shenzhen, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
2. School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan 250101, China

Received Date: 2013-03-17

Fund Project:

Keywords:

Abstract: Nitrification in biological nitrogen removal from wastewater is a main source of nitrous oxide (N2O). Two constant flow reactors were operated to enrich nitrifiers with two influent ammonium (NH4-N) concentrations of 60 mg/L (low-N-reactor) and 180 mg/L (high-N-reactor), and then effects of different initial NH4-N concentrations and initial nitrite (NO2-N) concentrations on the N2O emission for the acclimated nitrifiers were examined. There was not much N2O emission during the constant operation of the reactors, with the ratio of N2O emission to the removed NH4-N less than 0.01%. N2O emission increased with increasing both initial NH4-N and NO2-N concentrations. At different initial NH4-N concentrations, the ratio of N2O emission to the removed NH4-N was in the range from 0.51% to 1.40% for activated sludge from the low-N-reactor and from 0.29% to 1.27% from the high-N-reactor. At different initial NO2-N concentrations, the ratio of N2O emission to the removed NH4-N was in the range from 1.38% to 3.78% for activated sludge from the low-N-reactor and from 1.16% to 5.81% from the high-N-reactor.

全文HTML

参考文献 (17)

下载: 全尺寸图片幻灯片

返回文章

用微信扫码二维码

分享至好友和朋友圈

连续流反应器污水硝化过程中的N2O释放

N2O emission during nitrification in constant flow biological wastewater treatment systems

计量

出版历程

连续流反应器污水硝化过程中的N2O释放

English Abstract

N2O emission during nitrification in constant flow biological wastewater treatment systems

全文HTML

目录