The inhibitory effects of free ammonia on ammonia oxidizing bacteria and nitrite oxidizing bacteria under anaerobic condition.
The inhibitory effects of free ammonia on ammonia oxidizing bacteria and nitrite oxidizing bacteria under anaerobic condition.
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厌氧条件下游离氨对氨氧化菌和亚硝酸氧化菌的抑制作用。
DOI：
10.1016/j.biortech.2017.07.119
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发表时间：
2017-11
期刊：
影响因子：
--
通讯作者：
Ma Bin
中科院分区：
文献类型：
--
作者：
Qian Wenting;Peng Yongzhen;Li Xiyao;Zhang Qiong;Ma Bin
研究了厌氧条件下游离氨（FA）对氨氧化菌（AOB）和亚硝酸盐氧化菌（NOB）的抑制作用。结果表明，NOB对FA厌氧处理的敏感性高于AOB。随着FA浓度的增加，FA对硝化菌的厌氧抑制作用逐渐增强。随着FA浓度从0 mg NH3-N·L−1增加到16.82 mg NH3-N·L−1（本研究采用的最高浓度），AOB活性降低15.9%，NOB活性降低29.2%。经FA厌氧处理后，亚硝酸盐在硝化过程中积累。但在过度曝气的第6次活性恢复试验中，亚硝酸盐积累消失。基于这一结果，提出了一种实现硝化的新策略，该策略涉及通过副线污泥处理单元再循环一部分活性污泥，其中污泥在厌氧条件下进行FA处理。
The free ammonia (FA) inhibition on ammonia oxidizing bacteria (AOB) and nitrite oxidizing bacteria (NOB) under anaerobic condition was investigated in this study. The results indicated that NOB was more sensitive to the FA anaerobic treatment than AOB. The FA anaerobic inhibition on nitrifier gradually heightened with the increase of FA concentration. Accompanied with FA concentration increase from 0 to 16.82 mg NH3–N·L−1(the highest concentration adopted in this study), the activity of AOB reduced by 15.9%, while NOB decreased by 29.2%. After FA anaerobic treatment, nitrite was accumulated during nitrification. However, the nitrite accumulation disappeared on the sixth cycle of activity recovery tests with excessive aeration. Based on this result, a novel strategy for achieving nitritation is proposed, which involves recirculating a portion of the activated sludge through a side-line sludge treatment unit, where the sludge is subjected to treatment with FA under anaerobic condition.
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DOI：
--
发表时间：
1976
期刊：
Journal - Water Pollution Control Federation
影响因子：
--
作者：
A. Anthonisen;R. Loehr;T. Prakasam;E. G. Srinath
通讯作者：
A. Anthonisen;R. Loehr;T. Prakasam;E. G. Srinath
影响因子：
12.8
作者：
Zhou, Yan;Oehmen, Adrian;Ng, Wun Jern
通讯作者：
Ng, Wun Jern
影响因子：
4.4
作者：
Calli, B;Mertoglu, B;Yenigun, O
通讯作者：
Yenigun, O
影响因子：
12.8
作者：
Hansen, KH;Angelidaki, I;Ahring, BK
通讯作者：
Ahring, BK
影响因子：
4.6
作者：
Ma B;Bao P;Wei Y;Zhu G;Yuan Z;Peng Y
通讯作者：
Peng Y