Start-up and denitrification performance analysis of CANON process in a continuous flow reactor

LI Dong; CHEN Guanyu; ZENG Huiping; TIAN Haicheng; YANG Hang; CHENG Shuo; ZHANG Jie

doi:10.11918/j.issn.0367-6234.201606091

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Start-up and denitrification performance analysis of CANON process in a continuous flow reactor

更新时间：2026-10-19

- Start-up and denitrification performance analysis of CANON process in a continuous flow reactor
- Vol. 49, Issue 10, Pages: 2017-10(2017)
- 作者机构：
  
  1. 水质科学与水环境恢复工程北京市重点实验室(北京工业大学),北京,100124
  2. 城市水资源与水环境国家重点实验室(哈尔滨工业大学),哈尔滨,150090
- 作者简介：
- 基金信息：
- DOI：10.11918/j.issn.0367-6234.201606091
  CLC： X703.1
- Published：2017
- 稿件说明：
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LI Dong, CHEN Guanyu, ZENG Huiping, et al. Start-up and denitrification performance analysis of CANON process in a continuous flow reactor[J]. 2017, 49(10): 2017-10.
DOI：

LI Dong, CHEN Guanyu, ZENG Huiping, et al. Start-up and denitrification performance analysis of CANON process in a continuous flow reactor[J]. 2017, 49(10): 2017-10. DOI： 10.11918/j.issn.0367-6234.201606091.

摘要

在处理低碳氮比废水时，全程自养脱氮工艺表现出了良好的脱氮效果.为此，采用曝气上流式污泥床反应器(AUSB)对全程自养脱氮工艺的脱氮性能进行研究.结果表明：只投加氨氮不加入其他氮源的条件下表现出了73%的总氮去除率，在逐步增加进水氨氮和降低水力停留时间的过程中系统的脱氮能力得到提升，总氮去除负荷达到0.47 kg/（m3·d）以上，在本实验开始后的第60天出现了肉眼可见的颗粒.在运行期间，系统内NOB得到有效抑制，Δρ(TN)/Δρ(NO3--N)接近于理论值8，经过135 d的运行成功在连续流反应器内启动了全程自养脱氮颗粒污泥.实验结果表明

本实验通过采用增大进水负荷的方式促进了微生物的生长，构建出更适合CANON功能菌种的生长条件，NOB得到逐步淘汰.同时，在多种生物种群的共同作用下，反应器表现出高效的脱氮效果，在人工配水条件下，颗粒污泥连续流全程自养脱氮工艺启动成功.

Abstract

When treating waste water with low chemical oxygen demand to ammonium

the CANON process brings about a striking innovative effect. The denitrification performance of the CANON process was studied by adopting the aeration up-flow sludge bed reactor (AUSB). Under the condition of ammonia nitrogen being added as the one and only nitrogen source

the reactor shows 73% of the total nitrogen removal rate. With the gradual increase of inflow ammonia nitrogen and reduction of the hydraulic retention time

its denitrification ability continues to be promoted and the total nitrogen removal load reaches to more than 0.47 kg/(m3·d). By the 60th day since the study began

the visible particles appeared. During the start-up period

the activity of NOB in the system were suppressed effectively

and the value of Δρ(TN)/Δρ(NO3--N) was close to 8. After the operation of 135 d

the whole process of autotrophic denitrification of granular sludge was successfully started in a continuous flow reactor. The results demonstrated that increasing the influent load promoted the microbial growth

thus a more suitable growth conditions for CANON strain was built and NOB was gradually eliminated. By the interaction of a variety of biological populations

the reactor showed a high nitrogen removal efficiency

and the continuous flow of CANON process started successfully.

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