[1]吕永涛,苏含笑,鞠 恺,等.半亚硝化污泥基团内N2O产生的微生态特性[J].西安建筑科技大学学报:自然科学版,2014,46(05):754-757.[doi:10.15986/j.1006-7930.2004.05.024]
　LÜ,Yongtao,SU Hanxiao,et al.Micro-analysis of N2O production inside partial nitritation sludge flocs[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2014,46(05):754-757.[doi:10.15986/j.1006-7930.2004.05.024]
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半亚硝化污泥基团内N2O产生的微生态特性()
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西安建筑科技大学学报:自然科学版[ISSN:1006-7930/CN:61-1295/TU]

卷:
46
期数:
2014年05期
页码:
754-757
栏目:
出版日期:
2014-10-31

文章信息/Info

Title:
Micro-analysis of N2O production inside partial nitritation sludge flocs
文章编号:
1006-7930(2014)05-0754-04
作者:
吕永涛; 苏含笑; 鞠 恺; 张雪玲; 王 磊
（西安建筑科技大学环境与市政工程学院，陕西 西安 710055）
Author(s):
LÜ Yongtao;  SU Hanxiao;  JU Kai;  ZHANG Xueling;  WANG Lei
(School of Environmental and Municipal Engineering, Xi’an Univ. of Arch. & Tech., Xi’an 710055, China)
关键词:
半亚硝化; N2O; 微电极; 微生态特性
Keywords:
partial nitritation;  nitrous oxide;  microelectrodes;  micro-ecology characteristics
分类号:
S181.3；O629.9
DOI:
10.15986/j.1006-7930.2004.05.024
文献标志码:
A
摘要:
利用NH4+、NO2−、DO、pH和N2O五种微电极在好氧条件下对半亚硝化污泥基团内部微环境条件及氮素迁移转化特
征进行研究．结果表明，DO浓度是亚硝化活性与N2O生成的关键影响因子．在表层0~800 μm的区域，DO浓度充足（>1.92
mg L-1），伴随着氨氮浓度大幅降低，亚硝酸盐氮浓度同步升高，是亚硝化发生的主要区域，未发现N2O 生成的现象；在
800~2 500 μm的区域，DO浓度小于1.6 mg L-1，亚硝化反应不明显，N2O的体积净生成速率由0.13 μg·cm-3h-1逐渐增加至
6.9 μg·cm-3h-1．N2O的产生速率随着DO浓度的降低呈增长的趋势．
Abstract:
Five microelectrodes of NH4+, NO2−, DO, pH and N2O were used to explore the micro-environment conditions and the
migration of nitrogen transformation inside the partial nitritation sludge flocs under aerobic conditions. The results showed that DO
concentration is the key factor that influenced the speed of nitritation and the production of N2O. In the out layer of sludge flocs
(0~800μm), where DO concentration was above 1.92mg L-1, the nitrite concentration increased significantly with the decrease of
ammonia concentration, which was indication of nitritation. However, in this layer no N2O production was observed. In the deep
layer of sludge flocs (800~2 500μm), where DO concentration was below 1.6mg L-1, no obvious nitritation was observed while the
N2O net production rate was gradually increased from 0.13μg·cm-3h-1 to 6.9μg·cm-3h-1. It indicated that the N2O production rate
increased with the decrease of DO concentration.

参考文献/References:

参考文献 References
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相似文献/References:

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备注/Memo

备注/Memo:
收稿日期：2014-04-15 修改稿日期：2014-10-15
基金项目：国家自然科学基金项目(51108367)；高等学校博士学科点专项科研基金项目(20116120120009)；陕西省自然科学基金项目（2014JQ7243）；
陕西省教育厅重点实验室建设项目(11JS056)
作者简介：吕永涛（1980-），男，副教授，主要从事废水生物处理理论与技术的研究．E-mail: hybos2000@126.com
更新日期/Last Update: 2015-10-10