Start-up and characterization of nitrogen and COD removal from mature landfill leachate via CANON process

ZHANG Fangzhai; WANG Shuying; PENG Yongzhen; MIAO Lei; CAO Tianhao; WANG Zhong

doi:10.11949/j.issn.0438-1157.20160144

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Start-up and characterization of nitrogen and COD removal from mature landfill leachate via CANON process

更新时间：2025-12-10

- Start-up and characterization of nitrogen and COD removal from mature landfill leachate via CANON process
- CIESC Journal Issue 9, Pages: 3910-3918(2016)
- 作者机构：
  
  北京工业大学北京市污水脱氮除磷处理与过程控制工程技术研究中心, 北京市水质科学与水环境恢复工程重点实验室,北京,100124
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20160144
  CLC： 703
- Online First：05 September 2016，
  
  Published：05 September 2016
- 稿件说明：
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ZHANG Fangzhai, WANG Shuying, PENG Yongzhen, et al. Start-up and characterization of nitrogen and COD removal from mature landfill leachate via CANON process[J]. CIESC Journal, 2016, (9): 3910-3918.
DOI：

ZHANG Fangzhai, WANG Shuying, PENG Yongzhen, et al. Start-up and characterization of nitrogen and COD removal from mature landfill leachate via CANON process[J]. CIESC Journal, 2016, (9): 3910-3918. DOI： 10.11949/j.issn.0438-1157.20160144.

摘要

针对晚期垃圾渗滤液NH4--N浓度高、C/N低、深度脱氮困难的问题，采用CANON工艺在曝气/缺氧搅拌循环交替的运行方式下，处理晚期垃圾渗滤液实现了深度脱氮。系统经过130 d的驯化培养后成功启动，长期试验研究结果表明，在进水COD、NH4--N、TN浓度（mg·L-1）分别为2050±250、1625±75和2005±352情况下，出水COD、NH4--N、TN浓度（mg·L-1）能达到407±14、8±4和19±4，总氮去除率达到了98.76%。在未投加外碳源的情况下，CANON工艺在曝气/缺氧搅拌的运行方式下实现了对晚期垃圾渗滤液的深度脱氮。此外，经荧光原位杂交（FISH）检测表明，在该运行方式下能够成功富集氨氧化菌和厌氧氨氧化菌，各占总菌数的19.5%±1.3%和42.7%±5.02%，为CANON工艺用于处理晚期垃圾渗滤液的工程应用提供参考。

Abstract

The mature landfill leachate from sanitary landfill is difficult to treat because of complicated composition

high concentration of ammonia and low C/N. During this study

a CANON (completely autotrophic nitrogen removal over nitrite) process with an intermittent aeration/anaerobic mixing operational mode was applied to remove nitrogen from mature landfill leachate. After domestication of 130 d

the system was stable with the effluent COD

NH4--N and TN (mg·L-1) of 407±14

8±4 and 19±4 when the influent COD

NH4--N and TN (mg·L-1) were 2050±250

1625±75 and 2005±352

respectively. Nitrogen removal from mature landfill leachate could be realized via intermittent aeration/anaerobic mixing CANON process with 98.76% of total nitrogen removal efficiency. Besides

the FISH (Fluorescence in situ hybridization) results showed that under this operational mode

both aerobic ammonium oxidation bacteria and anaerobic ammonium oxidizing bacteria accounted for 19.5%±1.3% and 42.7%±5.02%

respectively

which provided a reference for CANON treating mature landfill leachate in engineering application.

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