Performance of ANAMMOX process with different operation strategies based on substrate concentration

TANG Chongjian; ZHENG Ping; CHEN Jianwei; HU Anhui

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Performance of ANAMMOX process with different operation strategies based on substrate concentration

更新时间：2025-12-10

- Performance of ANAMMOX process with different operation strategies based on substrate concentration
- CIESC Journal Issue 3, Pages: 718-725(2009)
- 作者机构：
  
  浙江大学环境工程系
- 作者简介：
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- Online First：05 March 2009，
  
  Published：05 March 2009
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TANG Chongjian, ZHENG Ping, CHEN Jianwei, et al. Performance of ANAMMOX process with different operation strategies based on substrate concentration[J]. CIESC Journal, 2009, (3): 718-725.
DOI：

TANG Chongjian, ZHENG Ping, CHEN Jianwei, et al. Performance of ANAMMOX process with different operation strategies based on substrate concentration[J]. CIESC Journal, 2009, (3): 718-725. DOI：

摘要

考察了不同操作模式对厌氧氨氧化工艺性能的影响。采用高基质浓度运行厌氧氨氧化反应器，设置出水回流（回流比R为1.07），最大基质氮去除速率为3.78 kg·m-3·d-1；采用低基质浓度运行厌氧氨氧化反应器，不设出水回流，最大基质氮去除速率可达25.04 kg·m-3·d-1；两者的最大基质氮去除速率相差6.62倍，低基质浓度操作模式明显优于高基质浓度操作模式。亚硝酸盐的毒性强于氨，反应器运行中可控制氨氮适当过量，同时应根据反应器对亚硝酸盐的转化能力来控制亚硝酸盐负荷，以避免亚硝酸盐过载所致的抑制作用。在处理高浓度含氮废水时，可采用出水回流来缓解基质抑制，也可配水稀释，使NO-2-N浓度低于临界抑制浓度。

Abstract

The performance of ANAMMOX (anaerobic ammonium oxidation) process with different operation strategies was investigated in two lab-scale upflow bioreactors. The results showed that the nitrogen removal rate of 3.78 kg·m-3·d-1 was achieved when the bioreactor was operated at high substrate concentrations with recirculation ratio of 1.07. However

it went up to 25.04 kg·m-3·d-1

which was 6.62 times higher than that above-mentioned

when the bioreactor was operated at relatively low substrate concentrations without recirculation. The operation strategy to run the bioreactor at relatively low substrate concentrations was far better than that to run it at high substrate concentrations. In the operation

ammonia could be a little excess over nitrite since the toxicity of ammonia was weaker than that of nitrite. The nitrite loading rate should be determined according to the capacity of nitrite conversion so as to avoid the nitrite inhibition from the overloading. When nitrogen-containing wastewater with a high concentration is treated

effluent recirculation can alleviate the nitrite inhibition or influent dilution can reduce the nitrite concentrations below the threshold value.

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